Sensing reference signal transmission and reception method, sensing transmitter, sensing receiver

Abstract

The present disclosure relates to a sensing reference signal transmitting and receiving method, a sensing transmitter, and a sensing receiver. The sensing transmitter determines a first position set and a second position set according to parameters used to determine subcarrier positions, obtains a subcarrier position set according to the first position set and the second position set, and transmits a sensing reference signal according to a subcarrier position indicated by the subcarrier position set. The sensing receiver determines a first position set and a second position set according to parameters used to determine subcarrier positions, obtains a subcarrier position set according to the first position set and the second position set, and receives a sensing reference signal according to a subcarrier position indicated by the subcarrier position set.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a method for transmitting and receiving sensing reference signals, a sensing transmitter, and a sensing receiver. Background Technology

[0002] In wireless sensing, it is typically necessary to estimate the distance, azimuth angle, and velocity of a target based on a sensing reference signal. This involves a sensing transmitter sending the sensing reference signal and a sensing receiver receiving it. Summary of the Invention

[0003] This disclosure provides a method for transmitting and receiving sensing reference signals, a sensing transmitter, and a sensing receiver.

[0004] According to a first aspect of the present disclosure, a method for transmitting a sensing reference signal is provided, executed by a sensing transmitter in a sensing network, the method comprising:

[0005] A first set of positions and a second set of positions are determined based on parameters used to determine the subcarrier positions, the first set of positions and the second set of positions being used to indicate the subcarrier positions;

[0006] The subcarrier position set is obtained based on the first position set and the second position set;

[0007] A sensing reference signal is transmitted based on the subcarrier positions indicated by the subcarrier position set;

[0008] The parameters used to determine the subcarrier position include:

[0009] Minimum frequency domain spacing K of the sensing reference signal resource particles min K min It is a positive integer;

[0010] The first parameter N is a positive integer greater than 1.

[0011] According to a second aspect of the present disclosure, a method for receiving a sensing reference signal is provided, executed by a sensing receiver in a sensing network, the method comprising:

[0012] A first set of positions and a second set of positions are determined based on parameters used to determine the subcarrier positions, the first set of positions and the second set of positions being used to indicate the subcarrier positions;

[0013] The subcarrier position set is obtained based on the first position set and the second position set;

[0014] Receive sensing reference signals based on the subcarrier positions indicated by the subcarrier position set;

[0015] The parameters used to determine the subcarrier position include:

[0016] Minimum frequency domain spacing K of the sensing reference signal resource particles min K min It is a positive integer;

[0017] The first parameter N is a positive integer greater than 1.

[0018] According to a third aspect of the embodiments of this disclosure, a sensing transmitter is provided, comprising:

[0019] The processing module is configured to determine a first set of positions and a second set of positions based on parameters used to determine the subcarrier positions, and to obtain a subcarrier position set based on the first set of positions and the second set of positions, wherein the first set of positions and the second set of positions are used to indicate the subcarrier positions;

[0020] The transceiver module is configured to transmit a sensing reference signal based on the subcarrier positions indicated by the subcarrier position set;

[0021] The parameters used to determine the subcarrier position include:

[0022] Minimum frequency domain spacing K of the sensing reference signal resource particles min K min It is a positive integer;

[0023] The first parameter N is a positive integer greater than 1.

[0024] According to a fourth aspect of the embodiments of this disclosure, a sensing receiver is provided, comprising:

[0025] The processing module is configured to determine a first set of positions and a second set of positions based on parameters used to determine the subcarrier positions, and to obtain a subcarrier position set based on the first set of positions and the second set of positions, wherein the first set of positions and the second set of positions are used to indicate the subcarrier positions;

[0026] The transceiver module is configured to receive a sensing reference signal based on the subcarrier position indicated by the subcarrier position set;

[0027] The parameters used to determine the subcarrier position include:

[0028] Minimum frequency domain spacing K of the sensing reference signal resource particles min K min It is a positive integer;

[0029] The first parameter N is a positive integer greater than 1.

[0030] According to a fifth aspect of the present disclosure, an electronic device is provided, comprising:

[0031] One or more processors;

[0032] The electronic device is used to execute the sensing reference signal transmission method provided in the first aspect of the present disclosure.

[0033] According to a sixth aspect of the present disclosure, an electronic device is provided, comprising:

[0034] One or more processors;

[0035] The electronic device is used to perform the sensing reference signal receiving method provided in the second aspect of the present disclosure.

[0036] According to a seventh aspect of the embodiments of this disclosure, a sensing network is proposed, comprising:

[0037] A sensing transmitter is used to execute the sensing reference signal transmission method provided in the first aspect of the embodiments of this disclosure;

[0038] A sensing receiver is used to perform the sensing reference signal receiving method provided in the second aspect of the embodiments of this disclosure.

[0039] According to an eighth aspect of the present disclosure, a storage medium is provided that stores instructions that, when executed on an electronic device, cause the electronic device to perform a sensing reference signal transmission method provided in the first aspect of the present disclosure, or to perform a sensing reference signal reception method provided in the second aspect of the present disclosure.

[0040] In this embodiment of the disclosure, a final subcarrier position set is determined based on a first position set and a second position set, and a sensing reference signal is transmitted and received based on the final subcarrier position set. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0042] Figure 1 This is a schematic diagram of the architecture of a perception network provided according to an embodiment of the present disclosure.

[0043] Figure 2A This is a schematic flowchart of a sensing reference signal transmission method provided according to an embodiment of the present disclosure.

[0044] Figure 2B This is a schematic flowchart of a sensing reference signal transmission method provided according to an embodiment of the present disclosure.

[0045] Figure 2CThis is a schematic flowchart of a sensing reference signal transmission method provided according to an embodiment of the present disclosure.

[0046] Figure 3A This is a schematic flowchart of a sensing reference signal receiving method provided according to an embodiment of the present disclosure.

[0047] Figure 3B This is a schematic flowchart of a sensing reference signal receiving method provided according to an embodiment of the present disclosure.

[0048] Figure 3C This is a schematic flowchart of a sensing reference signal receiving method provided according to an embodiment of the present disclosure.

[0049] Figure 4A This is a schematic diagram of the structure of a sensing transmitter in a sensing network provided according to an embodiment of the present disclosure.

[0050] Figure 4B This is a schematic diagram of the structure of a sensing receiver in a sensing network according to an embodiment of the present disclosure.

[0051] Figure 5 This is a schematic diagram of the structure of an electronic device provided according to an embodiment of the present disclosure. Detailed Implementation

[0052] This disclosure provides a method for transmitting and receiving a sensing reference signal, a sensing transmitter, and a sensing receiver. In some embodiments, the methods for transmitting and receiving the sensing reference signal can be used interchangeably with terms such as subcarrier determination method and sensing method.

[0053] 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.

[0054] 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.

[0055] 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 disclosure. The singular expressions "a," "an," "the," "the," "the," "the," "the foregoing," "this," etc., in the embodiments of this disclosure also include the plural expressions, unless the context clearly indicates otherwise. The predefined in the embodiments of this disclosure can be understood as defined, pre-defined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned, etc.

[0056] Prefixes such as "first" and "second" in this disclosure are merely for distinguishing different descriptive objects and do not limit the position, order, priority, quantity, or content of the described objects. For example, if the described object is a "field," the ordinal numbers before "field" in "first field" and "second field" do not restrict the position or order of the "fields," nor do "first" and "second" restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the described object is a "level," the ordinal numbers before "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the quantity of described objects is not limited by ordinal numbers and can be one or more; for example, in "first device," the quantity of "device" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device," then "first device" and "second device" can be devices of the same type or different types. Similarly, if the object being described is "information," then "first information" and "second information" can be information with the same content or information with different content. In summary, the use of ordinal numbers and other prefixes used to distinguish the objects described in this disclosure does not constitute a limitation on the objects being described. The description of the objects being described is based on the claims or the context of the embodiments, and should not constitute an unnecessary limitation due to the use of such prefixes.

[0057] In this embodiment of the disclosure, "multiple" refers to two or more. In this embodiment of the disclosure, "and / or" is used to describe the relationship between related objects, representing three relationships that can exist independently. For example, A and / or B can represent: A existing alone, B existing alone, or A and B existing simultaneously. Descriptions such as "at least one of A1, A2, ..., An (or at least one of them)" in this embodiment of the disclosure include the case where any one of A1, A2, ..., An exists alone, as well as the case where any combination of any multiple of A1, A2, ..., An exists, and each case can exist independently; for example, the description "at least one of A, B, C" includes the cases of A alone, B alone, C alone, a combination of A and B, a combination of A and C, a combination of B and C, and a combination of A, B, and C.

[0058] In some embodiments, the notation "in one case A, in another case B" or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: A is executed regardless of B, i.e., A is executed in some embodiments; B is executed regardless of A, i.e., B is executed in some embodiments; A and B are selectively executed, i.e., A and B are selected for execution in some embodiments; A and B are both executed, i.e., A and B are executed in some embodiments. The same applies when there are more branches such as A, B, C, etc.

[0059] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0060] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0061] In some embodiments, terms such as “greater than,” “greater than or equal to,” “above,” “higher than,” and “not less than” can be used interchangeably, as can terms such as “less than,” “less than or equal to,” “below,” “lower than,” and “not greater than”.

[0062] In some embodiments, the terms “radio”, “wireless”, “Radio Access Network (RAN)”, “Access Network (AN)”, and “RAN-based” may be used interchangeably.

[0063] In some embodiments, "pre-defined" or "pre-set" can be interpreted as something pre-specified in an agreement, or as a device or the like performing a pre-set action.

[0064] In some embodiments, devices, etc., can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as “device”, “equipment”, “device”, “network element”, “node”, “function”, “unit”, “entity”, “system”, “chip”, “chip system”, and “subject” can be used interchangeably.

[0065] In some embodiments, the names of information, etc., are not limited to those described in the embodiments, and terms such as “information”, “message”, “signaling”, “report”, “configuration”, “instruction”, “parameter”, and “data” can be used interchangeably.

[0066] In some embodiments, the terms "instruction" and "program" may be used interchangeably.

[0067] In some embodiments, “get,” “obtain,” “get,” “receive,” and “transmit (send and / or receive)” can be used interchangeably and can be interpreted as receiving from other entities, obtaining from protocols, obtaining through self-processing, or autonomously implementing, among other meanings.

[0068] In some embodiments, “send”, “report”, “distribute”, and “transmit (send and / or receive)” can be used interchangeably.

[0069] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0070] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0071] In some embodiments, the terms terminal, terminal device, user equipment (UE), user terminal, mobile station (MS), mobile terminal (MT), subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, and client can be used interchangeably.

[0072] In some embodiments, the terms base station, network device, access network device, gNB, etc., can be used interchangeably.

[0073] Although operations are described in a specific order in the accompanying drawings in this disclosure, it should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous. Furthermore, sending multiple messages via the same message is also advantageous.

[0074] Figure 1 This is a schematic diagram of the architecture of a sensing network according to embodiments of this disclosure. Figure 1 As shown, the sensing network includes a sensing transmitter 1101 and a sensing receiver 1102. The sensing transmitter 1101 transmits a sensing reference signal, and the sensing receiver 1102 receives and measures the sensing reference signal. It should be noted that... Figure 1 The number of sensing transmitters 1101 and sensing receivers 1102 shown are merely examples and do not constitute a limitation on the embodiments of this disclosure. In practice, there may be one or more sensing transmitters 1101 and one or more sensing receivers 1102.

[0075] In some embodiments, both the sensing transmitter 1101 and the sensing receiver 1102 can be base stations.

[0076] In some embodiments, the sensing transmitter 1101 can be a base station, and the sensing receiver 1102 can be a terminal.

[0077] In some embodiments, the sensing transmitter 1101 can be a terminal, and the sensing receiver 1102 can be a base station.

[0078] In some embodiments, both the sensing transmitter 1101 and the sensing receiver 1102 can be terminals.

[0079] In some embodiments, a base station may include an evolved NodeB (eNB), a next-generation NodeB (gNB) in a new radio (NR) system, a base station in other future communication systems, etc., but is not limited thereto.

[0080] In some embodiments, the terminal may include at least one of, but is not limited to, a mobile phone, a wearable device, an Internet of Things device, a car with communication capabilities, a smart car, a tablet computer, a computer with wireless transceiver capabilities, 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, and a wireless terminal device in a smart home.

[0081] In wireless sensing, it is typically necessary to estimate the distance, orientation (e.g., horizontal and vertical angles), and velocity of the target. To improve distance estimation accuracy, wireless sensing networks require high temporal resolution, which depends on bandwidth. In other words, the reference signal used for wireless sensing, i.e., the sensing reference signal, needs to have a large bandwidth.

[0082] In related technologies, sensing reference signals typically employ a uniform comb pattern in the frequency domain. For example, in one sensing application, positioning reference signals are uniformly spaced in the frequency domain. However, within a given bandwidth, comb patterns suffer from drawbacks such as reference signal overhead, power limitations, and ambiguity in the channel impulse response (CIR).

[0083] If the frequency domain spacing of the sensing reference signal is set too small, i.e. the frequency domain density is too high, it will lead to excessive overhead of the sensing reference signal, wasting a lot of valuable spectrum resources and ultimately causing a decrease in spectrum efficiency. On the other hand, with a fixed total transmission power, a too small frequency domain spacing of the sensing reference signal will result in too low power per resource element (RE), i.e., energy per resource element (EPRE), which will inevitably reduce sensing accuracy and performance.

[0084] If the frequency domain spacing of the sensing reference signal is set too large, i.e. the frequency domain density is too low, undersampling will cause the sensing receiver to observe multiple mirror images of the channel impulse response, resulting in timing ambiguity and sensing error.

[0085] Figure 2A This is a schematic flowchart illustrating a method for transmitting a sensing reference signal according to an embodiment of this disclosure. Figure 2A As shown, this disclosure relates to a method for transmitting a sensing reference signal. In some embodiments, the sensing reference signal transmission method can be used as a sensing transmitter in a sensing network. The sensing reference signal transmission method includes:

[0086] Step S2101: Determine the first position set and the second position set based on the parameters used to determine the subcarrier positions.

[0087] In some embodiments, the first location set and the second location set are used to indicate the subcarrier location.

[0088] In some embodiments, the first location set includes one or more elements, each element indicating a corresponding subcarrier location. Optionally, each element may be a number.

[0089] In some embodiments, the second location set includes one or more elements, each element indicating a corresponding subcarrier location. Optionally, each element may be a number.

[0090] Step S2102: Obtain the subcarrier position set based on the first position set and the second position set.

[0091] In some embodiments, the subcarrier positions in the first position set and the second position set can be combined to obtain the subcarrier position set.

[0092] Step S2103: Send a sensing reference signal according to the subcarrier position indicated by the subcarrier position set.

[0093] According to the above technical solution, the sensing transmitter in the sensing network can first determine a first set of positions and a second set of positions to indicate the positions of the subcarriers based on the parameters used to determine the subcarrier positions. Then, it can obtain the final set of subcarrier positions based on the first set of positions and the second set of positions, and then send a sensing reference signal based on the subcarrier positions indicated in the final set of subcarrier positions, thereby realizing the transmission of the sensing reference signal.

[0094] In some embodiments, the last subcarrier position in the first position set may be the same as the first subcarrier position in the second position set.

[0095] In some embodiments, all subcarrier positions in the first location set may be different from all subcarrier positions in the second location set.

[0096] In some embodiments, the subcarrier positions indicated by the first location set are uniformly distributed, the subcarrier positions indicated by the second location set are uniformly distributed, and the subcarrier frequency domain spacing in the first location set is different from that in the second location set.

[0097] In some embodiments, the subcarrier position set indicates that the subcarrier positions are not uniformly distributed.

[0098] According to the above technical solution, the sensing transmitter first determines a first set of subcarrier positions and a second set of subcarrier positions that are uniformly distributed, and the frequency domain spacing of the subcarriers in the first set and the second set of subcarrier positions is different. This allows for the acquisition of a set of subcarrier positions with a non-uniform distribution, enabling the sensing transmitter to transmit a sensing reference signal based on the non-uniformly distributed subcarrier positions. Compared to conventional uniform comb patterns, the frequency domain pattern of the sensing reference signal with a non-uniformly distributed frequency domain provided by the subcarrier position set in this embodiment of the present disclosure can achieve a larger uniform degree of freedom in the Khatri-Rao subspace and avoids the sensing receiver observing multiple mirror images of the channel impulse response.

[0099] In some embodiments, the subcarrier frequency domain spacing in the first location set is equal to the minimum frequency domain spacing K of the sensing reference signal resource particles. min Related. Among them, K min It is a positive integer.

[0100] In some embodiments, the subcarrier frequency domain spacing in the second location set is equal to the minimum frequency domain spacing K of the sensing reference signal resource particles. min It is related to the first parameter N. Where, K min is a positive integer, and N is a positive integer greater than 1.

[0101] In some embodiments, the parameters used to determine the subcarrier position include:

[0102] Minimum frequency domain spacing K of the sensing reference signal resource particles min K min It is a positive integer;

[0103] The first parameter N is a positive integer greater than 1.

[0104] In some embodiments, the minimum frequency domain spacing K of the sensing reference signal resource particles min It can be predefined by the protocol.

[0105] In some embodiments, K min ∈{2,4,6,12}.

[0106] Based on the above parameters, some optional implementations of determining the first and second position sets according to the parameters used to determine the subcarrier positions in step S2101 will be described below. For example, the first and second position sets can be determined according to any one of the following implementations 1.1, 1.2, and 1.3. Of course, this embodiment does not exclude the possibility that the first and second position sets can be determined through other implementations.

[0107] Implementation method 1.1:

[0108] In this implementation, based on formula nK min For the variable n, take values ​​from 0 to... The integers are used to obtain the first set of positions; based on the formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions.

[0109] in, Indicates to Perform rounding down. Indicates to Round up.

[0110] It can be understood that each number in the first and second position sets indicates a subcarrier position in the OFDM (Orthogonal Frequency Division Multiplexing) system.

[0111] In this implementation, the subcarrier positions indicated by the first position set are uniformly distributed, and the number of subcarrier positions is... The subcarrier frequency domain spacing is K min .

[0112] In this implementation, the subcarrier positions indicated by the second position set are uniformly distributed, and the number of subcarrier positions is... Subcarrier frequency spacing is

[0113] In this implementation, the first position set can be represented as:

[0114]

[0115] In this implementation, the second position set can be represented as:

[0116]

[0117] Alternatively, the set of subcarrier locations can be represented as:

[0118]

[0119] For example, suppose K min If N = 3 and N = 5, then S1 = {0, 3, 6} and S2 = {6, 15, 24}. Therefore, after taking the union of the first and second position sets, we obtain the subcarrier position set as S = {0, 3, 6, 15, 24}.

[0120] For another example, suppose K min If N = 4 and N = 6, then we have: S1 = {0, 4, 8, 12}, S2 = {12, 28, 44}. Therefore, after taking the union of the first and second position sets, we obtain the subcarrier position set as: S = {0, 4, 8, 12, 28, 44}.

[0121] In this implementation, the last subcarrier position in the first position set is the same as the first subcarrier position in the second position set.

[0122] Implementation method 1.2:

[0123] In this implementation, based on formula nK min For the variable n, take values ​​from 0 to... The integers are used to obtain the first set of positions; based on the formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions.

[0124] In this implementation, the subcarrier positions indicated by the first position set are uniformly distributed, and the number of subcarrier positions is... The subcarrier frequency domain spacing is K min .

[0125] In this implementation, the subcarrier positions indicated by the second position set are uniformly distributed, and the number of subcarrier positions is... Subcarrier frequency spacing is

[0126] In this implementation, the first position set can be represented as:

[0127]

[0128] In this implementation, the second position set can be represented as:

[0129]

[0130] Alternatively, the set of subcarrier locations can be represented as:

[0131]

[0132] For example, suppose Kmin If N = 4 and N = 6, then S1 = {0, 4, 8} and S2 = {12, 28, 44}. Therefore, after taking the union of the first and second position sets, the subcarrier position set is obtained as S = {0, 4, 8, 12, 28, 44}.

[0133] In this implementation, all subcarrier positions in the first position set are different from all subcarrier positions in the second position set.

[0134] Implementation method 1.3:

[0135] In this implementation, based on formula nK min For the variable n, take values ​​from 0 to... The integers are used to obtain the first set of positions; based on the formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions.

[0136] In this implementation, the subcarrier positions indicated by the first position set are uniformly distributed, and the number of subcarrier positions is... The subcarrier frequency domain spacing is K min .

[0137] In this implementation, the subcarrier positions indicated by the second position set are uniformly distributed, and the number of subcarrier positions is... Subcarrier frequency spacing is

[0138] In this implementation, the first position set can be represented as:

[0139]

[0140] In this implementation, the second position set can be represented as:

[0141]

[0142] Alternatively, the set of subcarrier locations can be represented as:

[0143]

[0144] For example, suppose K min If N = 4 and N = 6, then we have: S1 = {0, 4, 8, 12}, S2 = {28, 44}. Therefore, after taking the union of the first and second position sets, we obtain the subcarrier position set as: S = {0, 4, 8, 12, 28, 44}.

[0145] In this implementation, all subcarrier positions in the first position set are different from all subcarrier positions in the second position set.

[0146] According to the above optional implementation methods 1.1, 1.2 and 1.3, the frequency domain pattern of the sensing reference signal provided by the subcarrier position set in the embodiments of this disclosure can reduce the resource overhead and total transmission power of the sensing reference signal, and can achieve higher time domain resolution and higher sensing accuracy.

[0147] Specifically, while achieving the same time-domain resolution (depending on frequency-domain bandwidth) and sensing accuracy, the embodiments of this disclosure can significantly reduce the resource overhead of the sensing reference signal and the total transmission power.

[0148] Continuing with the example above, at the minimum frequency domain spacing K min When the value of is 4, the subcarrier position set is S = {0, 4, 8, 12, 28, 44}. That is, the sensing reference signal bandwidth includes 45 subcarriers, and within this bandwidth, 6 subcarriers are used to transmit the sensing reference signal. For the uniform comb pattern scheme, assuming the same frequency domain spacing of 4, 12 subcarriers are needed within the same 45-subcarrier bandwidth. Therefore, under the same bandwidth, the embodiments of this disclosure can use fewer subcarriers to transmit the sensing reference signal, thereby reducing the resource overhead and total transmission power of the sensing reference signal.

[0149] With the same total transmission power, embodiments of this disclosure enable higher signal power (EPRE) and signal-to-interference-plus-noise ratio (SINR) on the resource particle (RE) where the sensing reference signal is located, thereby achieving more accurate sensing performance.

[0150] Continuing with the previous example, assuming a total transmit power of 10W, the total transmit power will be allocated across 6 subcarriers, with each subcarrier receiving 10 / 6W of power. For a uniform comb pattern scheme, the total transmit power will be allocated across 12 subcarriers, with each subcarrier receiving 10 / 12W of power. Therefore, with the same total transmit power, the embodiments of this disclosure enable higher signal power (EPRE) on each sensing reference resource particle (RE).

[0151] With the same sensing reference signal resource overhead, embodiments of this disclosure can achieve a wider bandwidth, thereby achieving higher temporal resolution and more accurate sensing performance.

[0152] Continuing with the above example, the six subcarriers in this embodiment can achieve a bandwidth of 45 subcarriers, while for the uniform comb pattern scheme, the same six subcarriers can only achieve a bandwidth of 21 subcarriers. Therefore, the embodiments of this disclosure can achieve a wider bandwidth.

[0153] Furthermore, integrated sensing and communication (ISAC) can combine wireless communication and wireless sensing, allowing some frequency domain resources to be used for both wireless sensing and wireless communication. Since the embodiments of this disclosure can reduce the subcarrier resources required for wireless sensing, more subcarrier resources can be used for wireless communication, which is beneficial for wireless communication.

[0154] Furthermore, in some embodiments, step S2101 may also be based on the minimum frequency domain spacing K of the sensing reference signal resource particles. min The first and second position sets are calculated using a pair of coprime positive integers. Compared to this embodiment, the embodiments provided above in this disclosure require at least the minimum frequency domain spacing K of the sensing reference signal resource particles. min With just two parameters, the first position set and the second position set, the calculation can be performed using only these two parameters, requiring fewer parameters in total.

[0155] In some embodiments, the parameters used to determine the subcarrier position include:

[0156] Minimum frequency domain spacing K of the sensing reference signal resource particles min K min It is a positive integer;

[0157] The first parameter N is a positive integer greater than 1;

[0158] Offset, where Offset is a non-negative integer.

[0159] Based on the above parameters, some optional implementations of determining the first and second position sets according to the parameters used to determine the subcarrier positions in step S2101 will be described below. For example, the first and second position sets can be determined according to any one of the following implementations 2.1, 2.2, and 2.3. Of course, this embodiment does not exclude the possibility that the first and second position sets can be determined through other implementations.

[0160] Implementation method 2.1:

[0161] In this implementation, based on formula nK min +Offset, taking values ​​from 0 to 1 for variable n. The integers are used to obtain the first set of positions; based on the formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions.

[0162] In this implementation, the subcarrier positions indicated by the first position set are uniformly distributed, and the number of subcarrier positions is... The subcarrier frequency domain spacing is K min .

[0163] In this implementation, the subcarrier positions indicated by the second position set are uniformly distributed, and the number of subcarrier positions is... Subcarrier frequency spacing is

[0164] In this implementation, the first position set can be represented as:

[0165]

[0166] In this implementation, the second position set can be represented as:

[0167]

[0168] Alternatively, the set of subcarrier locations can be represented as:

[0169]

[0170] For example, suppose K min Given that N = 4, N = 6, and Offset = 1, we have: S1 = {1, 5, 9, 13}, S2 = {13, 29, 45}. Therefore, after taking the union of the first and second position sets, we obtain the subcarrier position set as: S = {1, 5, 9, 13, 29, 45}.

[0171] In this implementation, the last subcarrier position in the first position set is the same as the first subcarrier position in the second position set.

[0172] Implementation method 2.2:

[0173] In this implementation, based on formula nK min +Offset, taking values ​​from 0 to 1 for variable n. The integers are used to obtain the first set of positions; based on the formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions.

[0174] In this implementation, the subcarrier positions indicated by the first position set are uniformly distributed, and the number of subcarrier positions is... The subcarrier frequency domain spacing is K min .

[0175] In this implementation, the subcarrier positions indicated by the second position set are uniformly distributed, and the number of subcarrier positions is... Subcarrier frequency spacing is

[0176] In this implementation, the first position set can be represented as:

[0177]

[0178] In this implementation, the second position set can be represented as:

[0179]

[0180] Alternatively, the set of subcarrier locations can be represented as:

[0181]

[0182] For example, suppose K min Given that N = 4, N = 6, and Offset = 1, we have: S1 = {1, 5, 9}, S2 = {13, 29, 45}. Therefore, after taking the union of the first and second position sets, we obtain the subcarrier position set as: S = {1, 5, 9, 13, 29, 45}.

[0183] In this implementation, all subcarrier positions in the first position set are different from all subcarrier positions in the second position set.

[0184] Implementation method 2.3:

[0185] In this implementation, based on formula nK min +Offset, taking values ​​from 0 to 1 for variable n. The integers are used to obtain the first set of positions; based on the formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions.

[0186] In this implementation, the subcarrier positions indicated by the first position set are uniformly distributed, and the number of subcarrier positions is... The subcarrier frequency domain spacing is K min .

[0187] In this implementation, the subcarrier positions indicated by the second position set are uniformly distributed, and the number of subcarrier positions is... Subcarrier frequency spacing is

[0188] In this implementation, the first position set can be represented as:

[0189]

[0190] In this implementation, the second position set can be represented as:

[0191]

[0192] Alternatively, the set of subcarrier locations can be represented as:

[0193]

[0194] For example, suppose K min Given that N = 4, N = 6, and Offset = 1, we have: S1 = {1, 5, 9, 13}, S2 = {29, 45}. Therefore, after taking the union of the first and second position sets, we obtain the subcarrier position set: S = {1, 5, 9, 13, 29, 45}.

[0195] In this implementation, all subcarrier positions in the first position set are different from all subcarrier positions in the second position set.

[0196] According to the above-mentioned optional implementations 2.1, 2.2, and 2.3, the frequency domain pattern of the non-uniformly distributed sensing reference signal provided by the subcarrier position set in this embodiment can reduce the resource overhead and total transmission power of the sensing reference signal, and achieve higher time domain resolution and higher sensing accuracy. Furthermore, by using the offset, subcarrier conflicts between different sensing links or sensing networks can be avoided.

[0197] In some embodiments, the offset may include at least one of the following:

[0198] The first offset is k, where k is less than K. min non-negative integers;

[0199] Second offset K offset K is used to indicate the offset of the starting Physical Resource Block (PRB) of the sensing reference signal relative to common resource block 0. offset It is a non-negative integer multiple of the number of subcarriers contained in a Physical Resource Block (PRB). For example, a Physical Resource Block (PRB) contains 12 subcarriers.

[0200] Where k∈{0,1,…,K} min -1}.

[0201] According to the above embodiments, subcarrier conflicts between different sensing links or sensing networks can be avoided by using the first offset k.

[0202] According to the above embodiment, through the second offset K offsetThis allows all subcarrier positions of the sensing reference signal to be offset as a whole relative to common resource block 0.

[0203] In some embodiments, the parameters used to determine the subcarrier position include:

[0204] Minimum frequency domain spacing K of the sensing reference signal resource particles min ;

[0205] The first parameter N;

[0206] First offset k.

[0207] In some embodiments, the parameters used to determine the subcarrier position include:

[0208] Minimum frequency domain spacing K of the sensing reference signal resource particles min ;

[0209] The first parameter N;

[0210] Second offset K offset .

[0211] In some embodiments, the parameters used to determine the subcarrier position include:

[0212] Minimum frequency domain spacing K of the sensing reference signal resource particles min ;

[0213] The first parameter N;

[0214] First offset k;

[0215] Second offset K offset .

[0216] Based on the above embodiment of offset, the following describes some optional implementations of determining the first position set and the second position set according to the parameters used to determine the subcarrier position in step S2101. For example, the first position set and the second position set can be determined according to any one of the following implementations: 2.1.1, 2.1.2, 2.1.3, 2.2.1, 2.2.2, 2.2.3, 2.3.1, 2.3.2, and 2.3.3. Of course, this disclosure does not exclude the possibility that the first position set and the second position set can be determined by other implementations.

[0217] Optionally, implementation methods 2.1.1, 2.1.2, and 2.1.3 can refer to the relevant content of implementation method 2.1 above; implementation methods 2.2.1, 2.2.2, and 2.2.3 can refer to the relevant content of implementation method 2.2 above; and implementation methods 2.3.1, 2.3.2, and 2.3.3 can refer to the relevant content of implementation method 2.3 above.

[0218] Implementation method 2.1.1:

[0219] In this implementation, based on formula nK min +k, taking values ​​from 0 to... The integers are used to obtain the first set of positions; based on the formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions.

[0220] In this implementation, the first position set can be represented as:

[0221]

[0222] In this implementation, the second position set can be represented as:

[0223]

[0224] Alternatively, the set of subcarrier locations can be represented as:

[0225]

[0226] Implementation method 2.1.2:

[0227] In this implementation, based on formula nK min +K offset For the variable n, take values ​​from 0 to... The integers are used to obtain the first set of positions; based on the formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions.

[0228] In this implementation, the first position set can be represented as:

[0229]

[0230] In this implementation, the second position set can be represented as:

[0231]

[0232] Alternatively, the set of subcarrier locations can be represented as:

[0233]

[0234] Implementation method 2.1.3:

[0235] In this implementation, based on formula nK min +k+K offset For the variable n, take values ​​from 0 to... The integers are used to obtain the first set of positions; based on the formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions.

[0236] In this implementation, the first position set can be represented as:

[0237]

[0238] In this implementation, the second position set can be represented as:

[0239]

[0240] Alternatively, the set of subcarrier locations can be represented as:

[0241]

[0242] Implementation method 2.2.1:

[0243] In this implementation, based on formula nK min +k, taking values ​​from 0 to... The integers are used to obtain the first set of positions; based on the formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions.

[0244] In this implementation, the first position set can be represented as:

[0245]

[0246] In this implementation, the second position set can be represented as:

[0247]

[0248] Alternatively, the set of subcarrier locations can be represented as:

[0249]

[0250] Implementation method 2.2.2:

[0251] In this implementation, based on formula nK min +K offsetFor the variable n, take values ​​from 0 to... The integers are used to obtain the first set of positions; based on the formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions.

[0252] In this implementation, the first position set can be represented as:

[0253]

[0254] In this implementation, the second position set can be represented as:

[0255]

[0256] Alternatively, the set of subcarrier locations can be represented as:

[0257]

[0258] Implementation method 2.2.3:

[0259] In this implementation, based on formula nK min +k+K offset For the variable n, take values ​​from 0 to... The integers are used to obtain the first set of positions; based on the formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions.

[0260] In this implementation, the first position set can be represented as:

[0261]

[0262] In this implementation, the second position set can be represented as:

[0263]

[0264] Alternatively, the set of subcarrier locations can be represented as:

[0265]

[0266] Implementation method 2.3.1:

[0267] In this implementation, based on formula nK min +k, taking values ​​from 0 to... The integers are used to obtain the first set of positions; based on the formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions.

[0268] In this implementation, the first position set can be represented as:

[0269]

[0270] In this implementation, the second position set can be represented as:

[0271]

[0272] Alternatively, the set of subcarrier locations can be represented as:

[0273]

[0274] Implementation method 2.3.2:

[0275] In this implementation, based on formula nK min +K offset For the variable n, take values ​​from 0 to... The integers are used to obtain the first set of positions; based on the formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions.

[0276] In this implementation, the first position set can be represented as:

[0277]

[0278] In this implementation, the second position set can be represented as:

[0279]

[0280] Alternatively, the set of subcarrier locations can be represented as:

[0281]

[0282] Implementation method 2.3.3:

[0283] In this implementation, based on formula nK min +k+K offset For the variable n, take values ​​from 0 to... The integers are used to obtain the first set of positions; based on the formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions.

[0284] In this implementation, the first position set can be represented as:

[0285]

[0286] In this implementation, the second position set can be represented as:

[0287]

[0288] Alternatively, the set of subcarrier locations can be represented as:

[0289]

[0290] Figure 2B This is a schematic flowchart illustrating a method for transmitting a sensing reference signal according to an embodiment of this disclosure. Figure 2B As shown, this disclosure relates to a method for transmitting a sensing reference signal. In some embodiments, the sensing reference signal transmission method can be used as a sensing transmitter in a sensing network. The sensing reference signal transmission method includes:

[0291] Step S2201: At least one parameter used to determine the subcarrier position is sent to the sensing receiver.

[0292] In some embodiments, the parameters used to determine the subcarrier position include:

[0293] Minimum frequency domain spacing K of the sensing reference signal resource particles min ;

[0294] The first parameter is N.

[0295] In some embodiments, the parameters used to determine the subcarrier position include:

[0296] Minimum frequency domain spacing K of the sensing reference signal resource particles min ;

[0297] The first parameter N;

[0298] First offset k.

[0299] In some embodiments, the parameters used to determine the subcarrier position include:

[0300] Minimum frequency domain spacing K of the sensing reference signal resource particles min ;

[0301] The first parameter N;

[0302] Second offset K offset .

[0303] In some embodiments, the parameters used to determine the subcarrier position include:

[0304] Minimum frequency domain spacing K of the sensing reference signal resource particles min ;

[0305] The first parameter N;

[0306] First offset k;

[0307] Second offset K offset .

[0308] In some embodiments, the minimum frequency domain spacing K of the sensing reference signal resource particles is... min At least one of the parameters in the first parameter N is sent to the sensing receiver.

[0309] In some embodiments, the minimum frequency domain spacing K of the sensing reference signal resource particles is... min At least one of the parameters N and the first offset k is sent to the sensing receiver.

[0310] In some embodiments, the minimum frequency domain spacing K of the sensing reference signal resource particles is... min The first parameter N and the second offset K offset At least one parameter is sent to the sensing receiver.

[0311] In some embodiments, the minimum frequency domain spacing K of the sensing reference signal resource particles is... min First parameter N, first offset k, and second offset K offset At least one parameter is sent to the sensing receiver.

[0312] In some embodiments, the sensing transmitter can generate all the parameters used to determine the subcarrier position itself.

[0313] In some embodiments, the sensing transmitter sends at least one parameter used to determine the subcarrier position to the sensing receiver via signaling. For example, the sensing transmitter sends the minimum frequency domain spacing K of the sensing reference signal resource particles. min First parameter N, first offset k, and second offset K offset At least one parameter is sent to the sensing receiver via signaling.

[0314] In some embodiments, both the sensing transmitter and the sensing receiver in the sensing network are base stations, and the sensing network adopts a distributed control mechanism.

[0315] In some embodiments, both the sensing transmitter and the sensing receiver are gNBs.

[0316] In some embodiments, the signaling described above is signaling for the Xn interface or the X2 interface.

[0317] In some embodiments, one of the sensing transmitter and sensing receiver in the sensing network is a base station, and the other is a terminal. For example, the sensing transmitter is a base station, and the sensing receiver is a terminal. Another example is that the sensing transmitter is a terminal, and the sensing receiver is a base station.

[0318] In some embodiments, the above signaling is RRC (Radio Resource Control) signaling, and the signaling interface is the Uu interface.

[0319] In some embodiments, both the sensing transmitter and the sensing receiver in the sensing network are terminals.

[0320] In some embodiments, the above signaling is RRC signaling, and the signaling interface is a PC5 interface.

[0321] Step S2202: Determine the first position set and the second position set based on the parameters used to determine the subcarrier positions.

[0322] For optional implementations of step S2202, please refer to [link / reference]. Figure 2A The optional implementations of step S2101 can be found in, for example, optional implementations 1.1, 1.2, 1.3, 2.1, 2.2, 2.3, 2.1.1, 2.1.2, 2.1.3, 2.2.1, 2.2.2, 2.2.3, 2.3.1, 2.3.2, and 2.3.3, which will not be elaborated here.

[0323] Step S2203: Obtain the subcarrier position set based on the first position set and the second position set.

[0324] For optional implementations of step S2203, please refer to [link / reference]. Figure 2A The optional implementation methods of step S2102, and Figure 2A Other related parts in the embodiments involved will not be repeated here. For example, please refer to the relevant descriptions of the subcarrier position set in the optional implementations of step S2101: Implementation 1.1, Implementation 1.2, Implementation 1.3, Implementation 2.1, Implementation 2.2, Implementation 2.3, Implementation 2.1.1, Implementation 2.1.2, Implementation 2.1.3, Implementation 2.2.1, Implementation 2.2.2, Implementation 2.2.3, Implementation 2.3.1, Implementation 2.3.2, and Implementation 2.3.3.

[0325] Step S2204: Send a sensing reference signal according to the subcarrier position indicated by the subcarrier position set.

[0326] According to the above technical solution, the sensing transmitter can send at least one parameter for determining the subcarrier position to the sensing receiver, so that the sensing receiver can determine the subcarrier position for receiving the sensing reference signal based on the parameter sent by the sensing transmitter.

[0327] In some embodiments, the execution order of step S2201 is not limited. For example, step S2201 may be executed before or after step S2202, or simultaneously with step S2202; step S2201 may be executed before or after step S2203, or simultaneously with step S2203; step S2201 may be executed before or after step S2204, or simultaneously with step S2204.

[0328] Figure 2C This is a schematic flowchart illustrating a method for transmitting a sensing reference signal according to an embodiment of this disclosure. Figure 2C As shown, this disclosure relates to a method for transmitting a sensing reference signal. In some embodiments, the sensing reference signal transmission method can be used as a sensing transmitter in a sensing network. The sensing reference signal transmission method includes:

[0329] Step S2301: Receive at least one parameter sent by the core network for determining the subcarrier position.

[0330] In some embodiments, the parameters used to determine the subcarrier position include:

[0331] Minimum frequency domain spacing K of the sensing reference signal resource particles min ;

[0332] The first parameter is N.

[0333] In some embodiments, the parameters used to determine the subcarrier position include:

[0334] Minimum frequency domain spacing K of the sensing reference signal resource particles min ;

[0335] The first parameter N;

[0336] First offset k.

[0337] In some embodiments, the parameters used to determine the subcarrier position include:

[0338] Minimum frequency domain spacing K of the sensing reference signal resource particles min ;

[0339] The first parameter N;

[0340] Second offset K offset .

[0341] In some embodiments, the parameters used to determine the subcarrier position include:

[0342] Minimum frequency domain spacing K of the sensing reference signal resource particles min ;

[0343] The first parameter N;

[0344] First offset k;

[0345] Second offset K offset .

[0346] In some embodiments, the minimum frequency domain spacing K of the sensing reference signal resource particles sent by the core network is... min and at least one of the first parameters N.

[0347] In some embodiments, the minimum frequency domain spacing K of the sensing reference signal resource particles sent by the core network is... min At least one of the following parameters: first parameter N and first offset k.

[0348] In some embodiments, the minimum frequency domain spacing K of the sensing reference signal resource particles sent by the core network is... min The first parameter N and the second offset K offset At least one parameter in it.

[0349] In some embodiments, the minimum frequency domain spacing K of the sensing reference signal resource particles sent by the core network is... min First parameter N, first offset k, and second offset K offset At least one parameter in it.

[0350] In some embodiments, both the sensing transmitter and the sensing receiver in the sensing network are base stations, and the sensing network adopts a centralized control mechanism.

[0351] In some embodiments, both the sensing transmitter and the sensing receiver are gNBs.

[0352] In some embodiments, the sensing transmitter receives at least one parameter from a centralized control node in the core network for determining the position of a subcarrier.

[0353] In some embodiments, both the sensing transmitters and sensing receivers in the sensing network are connected to a centralized control node in the core network. The centralized control node generates at least one parameter for determining the subcarrier position for each sensing transmitter it is connected to, and sends the generated parameters to the corresponding sensing transmitter. For example, the centralized control node will determine the minimum frequency domain spacing K of the sensing reference signal resource particles. min First parameter N, first offset k, and second offset K offset At least one parameter is sent to the sensing transmitter via signaling.

[0354] In some embodiments, the interface for the signaling described above can be the interface between the centralized control node in the core network and the gNB, such as a wired connection interface.

[0355] According to the above embodiments, when both the sensing transmitter and the sensing receiver in the sensing network are base stations and the sensing network adopts a centralized control mechanism, all or part of the parameters for determining the subcarrier position can be generated by the centralized control node in the core network, and all or part of the generated parameters can be sent to the sensing transmitter in the sensing network.

[0356] In some embodiments, the centralized control node in the core network may also send at least one parameter for determining the subcarrier position corresponding to the sensing transmitter to the corresponding sensing receiver via signaling, so that the corresponding sensing receiver can determine the subcarrier position of the sensing reference signal based on the at least one parameter, and receive the sensing reference signal sent by the sensing transmitter.

[0357] In some embodiments, the centralized control node in the core network may also send at least one parameter for determining the subcarrier position corresponding to each sensing transmitter connected to it via signaling to all sensing receivers connected to the centralized control node, so that each sensing receiver can determine the subcarrier position of the sensing reference signal of each sensing transmitter.

[0358] In some embodiments, the sensing network includes multiple sensing transmitters, all of which are base stations, and the sensing receivers in the sensing network are terminals.

[0359] In some embodiments, multiple sensing transmitters are gNBs.

[0360] In some embodiments, the sensing transmitter receives at least one parameter sent by a core network element for determining the subcarrier position.

[0361] In some embodiments, the core network element generates at least one parameter for determining the subcarrier position for each sensing transmitter in the sensing network, and sends the generated parameters to the corresponding sensing transmitter. For example, the core network element determines the minimum frequency domain spacing K of the sensing reference signal resource particles. min First parameter N, first offset k, and second offset K offset At least one parameter is sent to the sensing transmitter via signaling.

[0362] According to the above embodiments, in the case where the sensing network includes multiple sensing transmitters, and all of the multiple sensing transmitters in the sensing network are base stations, and the sensing receivers in the sensing network are terminals, all or part of the parameters used to determine the subcarrier position can be generated by the core network element, so as to avoid the conflict caused by the parameters generated by multiple sensing transmitters, and all or part of the generated parameters can be sent to the sensing transmitters in the sensing network.

[0363] In some embodiments, the core network element can be an LMF (location management functionality) network element, or a network element specifically used for sensing, such as an SMF (sensing management functionality) network element.

[0364] In some embodiments, the core network element may also send at least one parameter for determining the subcarrier position corresponding to multiple sensing transmitters in the sensing network to a sensing receiver in the sensing network, so that the sensing receiver can know the parameters for determining the subcarrier position corresponding to all sensing transmitters involved in the sensing network.

[0365] Step S2302: Determine the first position set and the second position set based on the parameters used to determine the subcarrier positions.

[0366] For optional implementations of step S2302, please refer to [link / reference]. Figure 2A The optional implementations of step S2101 can be found in, for example, optional implementations 1.1, 1.2, 1.3, 2.1, 2.2, 2.3, 2.1.1, 2.1.2, 2.1.3, 2.2.1, 2.2.2, 2.2.3, 2.3.1, 2.3.2, and 2.3.3, which will not be elaborated here.

[0367] In some embodiments, if the centralized control node in the core network does not send all the parameters used to determine the subcarrier positions, then when the sensing transmitter determines the first and second position sets, default values ​​can be used for the parameters that the centralized control node did not send.

[0368] In some embodiments, if the centralized control node in the core network does not send all the parameters used to determine the subcarrier position this time, but the centralized control node has sent the value of the parameter previously for the parameter not sent this time, then when the sensing transmitter determines the first position set and the second position set, the value of the parameter previously sent by the centralized control node can be used for the parameter not sent by the centralized control node this time.

[0369] In some embodiments, if the core network element does not send all the parameters used to determine the subcarrier position, then when the sensing transmitter determines the first position set and the second position set, the default value can be used for the parameters that the core network element did not send.

[0370] In some embodiments, if a core network element does not send all the parameters used to determine the subcarrier position this time, but the core network element has previously sent the value of the parameter for the parameter that was not sent this time, then when the sensing transmitter determines the first location set and the second location set, the value of the parameter that the core network element sent last time can be used for the parameter that was not sent by the core network element.

[0371] Step S2303: Obtain the subcarrier position set based on the first position set and the second position set.

[0372] For optional implementations of step S2303, please refer to [link / reference]. Figure 2A The optional implementation methods of step S2102, and Figure 2A Other related parts in the embodiments involved will not be repeated here. For example, please refer to the relevant descriptions of the subcarrier position set in the optional implementations of step S2101: Implementation 1.1, Implementation 1.2, Implementation 1.3, Implementation 2.1, Implementation 2.2, Implementation 2.3, Implementation 2.1.1, Implementation 2.1.2, Implementation 2.1.3, Implementation 2.2.1, Implementation 2.2.2, Implementation 2.2.3, Implementation 2.3.1, Implementation 2.3.2, and Implementation 2.3.3.

[0373] Step S2304: Send a sensing reference signal according to the subcarrier position indicated by the subcarrier position set.

[0374] According to the above technical solution, the sensing transmitter can determine the subcarrier position of the sensing reference signal based on at least one parameter sent by the core network for determining the subcarrier position, and send the sensing reference signal based on the subcarrier position.

[0375] Figure 3A This is a schematic flowchart illustrating a sensing reference signal receiving method according to embodiments of the present disclosure. Figure 3A As shown, embodiments of this disclosure relate to a method for receiving a sensing reference signal. In some embodiments, the sensing reference signal receiving method can be used in a sensing receiver in a sensing network. The sensing reference signal receiving method includes:

[0376] Step S3101: Determine the first position set and the second position set based on the parameters used to determine the subcarrier positions.

[0377] In some embodiments, the first location set and the second location set are used to indicate the subcarrier location.

[0378] In some embodiments, the first location set includes one or more elements, each element indicating a corresponding subcarrier location. Optionally, each element may be a number.

[0379] In some embodiments, the second location set includes one or more elements, each element indicating a corresponding subcarrier location. Optionally, each element may be a number.

[0380] For optional implementations of step S3101, please refer to [link / reference]. Figure 2A The optional implementations of step S2101 can be found in, for example, optional implementations 1.1, 1.2, 1.3, 2.1, 2.2, 2.3, 2.1.1, 2.1.2, 2.1.3, 2.2.1, 2.2.2, 2.2.3, 2.3.1, 2.3.2, and 2.3.3, which will not be elaborated here.

[0381] Step S3102: Obtain the subcarrier position set based on the first position set and the second position set.

[0382] Optional implementations of step S3102 can be found in [reference]. Figure 2A The optional implementation methods of step S2102, and Figure 2A Other related parts in the embodiments involved will not be repeated here. For example, please refer to the relevant descriptions of the subcarrier position set in the optional implementations of step S2101: Implementation 1.1, Implementation 1.2, Implementation 1.3, Implementation 2.1, Implementation 2.2, Implementation 2.3, Implementation 2.1.1, Implementation 2.1.2, Implementation 2.1.3, Implementation 2.2.1, Implementation 2.2.2, Implementation 2.2.3, Implementation 2.3.1, Implementation 2.3.2, and Implementation 2.3.3.

[0383] Step S3103: Receive the sensing reference signal according to the subcarrier position indicated by the subcarrier position set.

[0384] According to the above technical solution, the sensing receiver in the sensing network can first determine a first set of positions and a second set of positions to indicate the subcarrier positions based on the parameters used to determine the subcarrier positions. Then, it can obtain the final set of subcarrier positions based on the first set of positions and the second set of positions, and then receive the sensing reference signal based on the subcarrier positions indicated in the final set of subcarrier positions, thereby realizing the reception of the sensing reference signal.

[0385] In some embodiments, the last subcarrier position in the first position set may be the same as the first subcarrier position in the second position set.

[0386] In some embodiments, all subcarrier positions in the first location set may be different from all subcarrier positions in the second location set.

[0387] In some embodiments, the subcarrier positions indicated by the first location set are uniformly distributed, the subcarrier positions indicated by the second location set are uniformly distributed, and the subcarrier frequency domain spacing in the first location set is different from that in the second location set.

[0388] In some embodiments, the subcarrier position set indicates that the subcarrier positions are not uniformly distributed.

[0389] According to the above technical solution, the sensing receiver first determines a first set of positions and a second set of positions with uniformly distributed subcarrier positions, and the frequency domain spacing of the subcarriers in the first set and the second set of positions is different. This allows for the acquisition of a set of subcarrier positions with non-uniform distribution, enabling the sensing receiver to receive the sensing reference signal based on the non-uniformly distributed subcarrier positions. Compared to conventional uniform comb patterns, the frequency domain pattern of the sensing reference signal with non-uniformly distributed frequency domain provided by the subcarrier position set in this embodiment can achieve a larger uniform degree of freedom in the Khatri-Rao subspace and avoids the sensing receiver observing multiple mirror images of the channel impulse response.

[0390] In some embodiments, the subcarrier frequency domain spacing in the first location set is equal to the minimum frequency domain spacing K of the sensing reference signal resource particles. min Related. Among them, K min It is a positive integer.

[0391] In some embodiments, the subcarrier frequency domain spacing in the second location set is equal to the minimum frequency domain spacing K of the sensing reference signal resource particles. min It is related to the first parameter N. Where, K min is a positive integer, and N is a positive integer greater than 1.

[0392] In some embodiments, the parameters used to determine the subcarrier position include:

[0393] Minimum frequency domain spacing K of the sensing reference signal resource particles min K min It is a positive integer;

[0394] The first parameter N is a positive integer greater than 1.

[0395] In some embodiments, the parameters used to determine the subcarrier position include:

[0396] Minimum frequency domain spacing K of the sensing reference signal resource particles min K min It is a positive integer;

[0397] The first parameter N is a positive integer greater than 1;

[0398] Offset, where Offset is a non-negative integer.

[0399] In some embodiments, the offset may include at least one of the following:

[0400] The first offset is k, where k is less than K. min non-negative integers;

[0401] Second offset K offset K is used to indicate the offset of the starting PRB of the sensing reference signal relative to common resource block 0. offset It is a non-negative integer multiple of the number of subcarriers contained in the PRB. For example, the number of subcarriers contained in the PRB is 12.

[0402] Where k∈{0,1,…,K} min -1}.

[0403] In some embodiments, the parameters used to determine the subcarrier position can be found in [reference needed]. Figure 2A , Figure 2B and Figure 2C The relevant descriptions in the embodiments are as follows.

[0404] Figure 3B This is a schematic flowchart illustrating a sensing reference signal receiving method according to embodiments of the present disclosure. Figure 3B As shown, embodiments of this disclosure relate to a method for receiving a sensing reference signal. In some embodiments, the sensing reference signal receiving method can be used in a sensing receiver in a sensing network. The sensing reference signal receiving method includes:

[0405] Step S3201: Receive at least one parameter sent by the sensing transmitter for determining the subcarrier position.

[0406] For optional implementations of step S3201, please refer to [link / reference]. Figure 2B The optional implementation methods of step S2201 will not be elaborated here.

[0407] In some embodiments, the minimum frequency domain spacing K of the sensing reference signal resource particles received by the sensing transmitter is... min and at least one of the first parameters N.

[0408] In some embodiments, the minimum frequency domain spacing K of the sensing reference signal resource particles received by the sensing transmitter is... min At least one of the following parameters: first parameter N and first offset k.

[0409] In some embodiments, the minimum frequency domain spacing K of the sensing reference signal resource particles received by the sensing transmitter is...min The first parameter N and the second offset K offset At least one parameter in it.

[0410] In some embodiments, the minimum frequency domain spacing K of the sensing reference signal resource particles received by the sensing transmitter is... min First parameter N, first offset k, and second offset K offset At least one parameter in it.

[0411] Step S3202: Determine the first position set and the second position set based on the parameters used to determine the subcarrier positions.

[0412] For optional implementations of step S3202, please refer to [link / reference]. Figure 2A The optional implementations of step S2101 can be found in, for example, optional implementations 1.1, 1.2, 1.3, 2.1, 2.2, 2.3, 2.1.1, 2.1.2, 2.1.3, 2.2.1, 2.2.2, 2.2.3, 2.3.1, 2.3.2, and 2.3.3, which will not be elaborated here.

[0413] In some embodiments, if the sensing transmitter does not send all the parameters used to determine the subcarrier positions, then when the sensing receiver determines the first and second position sets, default values ​​can be used for the parameters that the sensing transmitter did not send.

[0414] In some embodiments, if the sensing transmitter does not send all the parameters used to determine the subcarrier position this time, but the sensing transmitter has previously sent the value of the parameter that was not sent this time, then when the sensing receiver determines the first position set and the second position set, the value of the parameter that the sensing transmitter sent last time can be used for the parameter that the sensing transmitter did not send this time.

[0415] Step S3203: Obtain the subcarrier position set based on the first position set and the second position set.

[0416] For optional implementations of step S3203, please refer to [link / reference]. Figure 2A The optional implementation methods of step S2102, and Figure 2AOther related parts in the embodiments involved will not be repeated here. For example, please refer to the relevant descriptions of the subcarrier position set in the optional implementations of step S2101: Implementation 1.1, Implementation 1.2, Implementation 1.3, Implementation 2.1, Implementation 2.2, Implementation 2.3, Implementation 2.1.1, Implementation 2.1.2, Implementation 2.1.3, Implementation 2.2.1, Implementation 2.2.2, Implementation 2.2.3, Implementation 2.3.1, Implementation 2.3.2, and Implementation 2.3.3.

[0417] Step S3204: Receive the sensing reference signal according to the subcarrier position indicated by the subcarrier position set.

[0418] According to the above technical solution, the sensing receiver can determine the subcarrier position for receiving the sensing reference signal based on at least one parameter sent by the sensing transmitter for determining the subcarrier position, thereby receiving the sensing reference signal from the sensing transmitter.

[0419] Figure 3C This is a schematic flowchart illustrating a sensing reference signal receiving method according to embodiments of the present disclosure. Figure 3C As shown, embodiments of this disclosure relate to a method for receiving a sensing reference signal. In some embodiments, the sensing reference signal receiving method can be used in a sensing receiver in a sensing network. The sensing reference signal receiving method includes:

[0420] Step S3301: Receive at least one parameter sent by the core network for determining the subcarrier position.

[0421] For optional implementations of step S3301, please refer to [link / reference]. Figure 2C The optional implementation methods of step S2301 will not be elaborated here.

[0422] In some embodiments, the minimum frequency domain spacing K of the sensing reference signal resource particles sent by the core network is... min and at least one of the first parameters N.

[0423] In some embodiments, the minimum frequency domain spacing K of the sensing reference signal resource particles sent by the core network is... min At least one of the following parameters: first parameter N and first offset k.

[0424] In some embodiments, the minimum frequency domain spacing K of the sensing reference signal resource particles sent by the core network is... min The first parameter N and the second offset K offset At least one parameter in it.

[0425] In some embodiments, the minimum frequency domain spacing K of the sensing reference signal resource particles sent by the core network is...min First parameter N, first offset k, and second offset K offset At least one parameter in it.

[0426] In some embodiments, both the sensing transmitter and the sensing receiver in the sensing network are base stations, and the sensing network adopts a centralized control mechanism.

[0427] In some embodiments, the sensing receiver receives at least one parameter sent by a centralized control node in the core network for determining the position of a subcarrier.

[0428] In some embodiments, the sensing network includes multiple sensing transmitters, all of which are base stations, and the sensing receivers in the sensing network are terminals.

[0429] In some embodiments, the sensing receiver receives at least one parameter sent by a core network element for determining the position of a subcarrier.

[0430] In some embodiments, the core network element may be an LMF network element or a network element specifically designed for sensing, such as an SMF network element.

[0431] In some embodiments, core network elements can transparently transmit at least one parameter for determining the subcarrier position corresponding to one or more sensing transmitters to a sensing receiver via a base station.

[0432] In some embodiments, core network elements can transparently transmit the above parameters to the sensing receiver via NAS (non-access stratum) signaling.

[0433] Step S3302: Determine the first position set and the second position set based on the parameters used to determine the subcarrier positions.

[0434] For optional implementations of step S3302, please refer to [link / reference]. Figure 2A The optional implementation methods of step S2101, and Figure 2C The optional implementations of step S2302 can be found in, for example, the optional implementations of step S2101: 1.1, 1.2, 1.3, 2.1, 2.2, 2.3, 2.1.1, 2.1.2, 2.1.3, 2.2.1, 2.2.2, 2.2.3, 2.3.1, 2.3.2, and 2.3.3. These will not be elaborated upon here.

[0435] In some embodiments, if the centralized control node in the core network does not send all the parameters used to determine the subcarrier positions, then when the sensing receiver determines the first position set and the second position set, the default values ​​can be used for the parameters that the centralized control node did not send.

[0436] In some embodiments, if the centralized control node in the core network does not send all the parameters used to determine the subcarrier position this time, but the centralized control node has sent the value of the parameter previously for the parameter not sent this time, then when the sensing receiver determines the first position set and the second position set, the value of the parameter previously sent by the centralized control node can be used for the parameter not sent by the centralized control node this time.

[0437] In some embodiments, if the core network element does not send all the parameters used to determine the subcarrier position, then when the sensing receiver determines the first position set and the second position set, the default value can be used for the parameters that the core network element did not send.

[0438] In some embodiments, if a core network element does not send all the parameters used to determine the subcarrier position this time, but the core network element has previously sent the value of the parameter that was not sent this time, then when the sensing receiver determines the first location set and the second location set, the value of the parameter that the core network element sent last time can be used for the parameter that was not sent by the core network element.

[0439] Step S3303: Obtain the subcarrier position set based on the first position set and the second position set.

[0440] For optional implementations of step S3303, please refer to [link / reference]. Figure 2A The optional implementation methods of step S2102, and Figure 2A Other related parts in the embodiments involved will not be repeated here. For example, please refer to the relevant descriptions of the subcarrier position set in the optional implementations of step S2101: Implementation 1.1, Implementation 1.2, Implementation 1.3, Implementation 2.1, Implementation 2.2, Implementation 2.3, Implementation 2.1.1, Implementation 2.1.2, Implementation 2.1.3, Implementation 2.2.1, Implementation 2.2.2, Implementation 2.2.3, Implementation 2.3.1, Implementation 2.3.2, and Implementation 2.3.3.

[0441] Step S3304: Receive the sensing reference signal according to the subcarrier position indicated by the subcarrier position set.

[0442] According to the above technical solution, the sensing receiver can determine the subcarrier position for receiving the sensing reference signal based on at least one parameter sent by the core network for determining the subcarrier position, thereby receiving the sensing reference signal from the sensing transmitter.

[0443] This disclosure also proposes an apparatus for implementing the above methods. For example, an apparatus is proposed that includes units or modules for implementing each step of the above-described sensing reference signal transmission method; for example, the apparatus may be a sensing transmitter. Furthermore, another apparatus is proposed that includes units or modules for implementing each step of the above-described sensing reference signal reception method; for example, the apparatus may be a sensing receiver.

[0444] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0445] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, 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), or a Deep Learning Processing Unit (DPU).

[0446] Figure 4A This is a schematic diagram of the structure of a sensing transmitter in a sensing network proposed in an embodiment of this disclosure. Figure 4A As shown, the sensing transmitter may include at least one of a processing module 4101 and a transceiver module 4102.

[0447] In some embodiments, the processing module 4101 is configured to determine a first location set and a second location set based on parameters for determining subcarrier positions, and to obtain a subcarrier position set based on the first location set and the second location set, wherein the first location set and the second location set are used to indicate subcarrier positions.

[0448] In some embodiments, the transceiver module 4102 is used to transmit a sensing reference signal according to the subcarrier position indicated by the subcarrier position set.

[0449] In some embodiments, the parameters used to determine the subcarrier position include:

[0450] Minimum frequency domain spacing K of the sensing reference signal resource particles minK min It is a positive integer;

[0451] The first parameter N is a positive integer greater than 1.

[0452] In some embodiments, the processing module 4101 is configured to:

[0453] Based on formula nK min For the variable n, take values ​​from 0 to... The integers are used to obtain the first set of positions;

[0454] Based on formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions;

[0455] in, Indicates to Perform rounding down. Indicates to Round up.

[0456] In some embodiments, the processing module 4101 is configured to:

[0457] Based on formula nK min For the variable n, take values ​​from 0 to... The integers are used to obtain the first set of positions;

[0458] Based on formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions;

[0459] in, Indicates to Perform rounding down. Indicates to Round up.

[0460] In some embodiments, the processing module 4101 is configured to:

[0461] Based on formula nK min For the variable n, take values ​​from 0 to... The integers are used to obtain the first set of positions;

[0462] Based on formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions;

[0463] in, Indicates to Perform rounding down. Indicates to Round up.

[0464] In some embodiments, the parameters used to determine the subcarrier position further include:

[0465] Offset, where Offset is a non-negative integer.

[0466] In some embodiments, the processing module 4101 is configured to:

[0467] Based on formula nK min +Offset, taking values ​​from 0 to 1 for variable n. The integers are used to obtain the first set of positions;

[0468] Based on formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions;

[0469] in, Indicates to Perform rounding down. Indicates to Round up.

[0470] In some embodiments, the processing module 4101 is configured to:

[0471] Based on formula nK min +Offset, taking values ​​from 0 to 1 for variable n. The integers are used to obtain the first set of positions;

[0472] Based on formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions;

[0473] in, Indicates to Perform rounding down. Indicates to Round up.

[0474] In some embodiments, the processing module 4101 is configured to:

[0475] Based on formula nK min +Offset, taking values ​​from 0 to 1 for variable n. The integers are used to obtain the first set of positions;

[0476] Based on formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions;

[0477] in, Indicates to Perform rounding down. Indicates to Round up.

[0478] In some embodiments, the offset includes at least one of the following:

[0479] The first offset is k, where k is less than K. min non-negative integers;

[0480] Second offset K offset K is used to indicate the offset of the starting physical resource block of the sensing reference signal relative to common resource block 0. offset It is a non-negative integer multiple of the number of subcarriers contained in the physical resource block.

[0481] In some embodiments, the last subcarrier position in the first position set is the same as the first subcarrier position in the second position set; or, all subcarrier positions in the first position set are different from all subcarrier positions in the second position set.

[0482] In some embodiments, the subcarrier positions indicated by the first location set are uniformly distributed, the subcarrier positions indicated by the second location set are uniformly distributed, and the subcarrier frequency domain spacing in the first location set is different from the subcarrier frequency domain spacing in the second location set, and the subcarrier positions indicated by the subcarrier position set are non-uniformly distributed.

[0483] In some embodiments, the processing module 4101 is configured to take the union of the subcarrier positions in the first position set and the second position set to obtain the subcarrier position set.

[0484] In some embodiments, both the sensing transmitter and the sensing receiver in the sensing network are base stations, and the sensing network employs a distributed control mechanism.

[0485] In some embodiments, one of the sensing transmitter and sensing receiver in the sensing network is a base station, and the other is a terminal.

[0486] In some embodiments, both the sensing transmitter and the sensing receiver in the sensing network are terminals.

[0487] According to the above embodiment, the transceiver module 4102 is used to send at least one parameter for determining the subcarrier position to the sensing receiver.

[0488] In some embodiments, both the sensing transmitter and the sensing receiver in the sensing network are base stations, and the sensing network adopts a centralized control mechanism.

[0489] In some embodiments, the sensing network includes multiple sensing transmitters, all of which are base stations, and the sensing receivers in the sensing network are terminals.

[0490] According to the above embodiments, the transceiver module 4102 is used to receive at least one parameter sent by the core network for determining the subcarrier position.

[0491] Optionally, the transceiver module 4102 is used to receive at least one parameter sent by the centralized control node in the core network for determining the subcarrier position.

[0492] Optionally, the transceiver module 4102 is used to receive at least one parameter sent by a core network element for determining the position of a subcarrier.

[0493] Optionally, the processing module 4101 is used to execute the steps in the above-described sensing reference signal transmission method, such as at least one of steps S2101, S2102, S2202, S2203, S2302, and S2303, but not limited thereto.

[0494] Optionally, the transceiver module 4102 is used to perform communication steps such as transmitting and / or receiving in the above-described sensing reference signal transmission method, such as at least one of steps S2103, S2201, S2204, S2301, and S2304, but not limited thereto.

[0495] In some embodiments, the processing module 4101 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 4101. Optionally, the processing module 4101 may be interchangeable with a processor.

[0496] In some embodiments, the transceiver module 4102 may include a transmitting module and / or a receiving module, which may be separate or integrated together. Optionally, the transceiver module 4102 may be interchangeable with a transceiver.

[0497] Figure 4B This is a schematic diagram of the structure of a sensing receiver in a sensing network proposed in an embodiment of this disclosure. Figure 4B As shown, the sensing receiver may include at least one of a processing module 4201 and a transceiver module 4202.

[0498] In some embodiments, the processing module 4201 is configured to determine a first location set and a second location set based on parameters for determining subcarrier positions, and to obtain a subcarrier position set based on the first location set and the second location set, wherein the first location set and the second location set are used to indicate subcarrier positions.

[0499] In some embodiments, the transceiver module 4202 is configured to receive a sensing reference signal according to the subcarrier position indicated by the subcarrier position set.

[0500] In some embodiments, the parameters used to determine the subcarrier position include:

[0501] Minimum frequency domain spacing K of the sensing reference signal resource particles min K min It is a positive integer;

[0502] The first parameter N is a positive integer greater than 1.

[0503] In some embodiments, the processing module 4201 is configured to:

[0504] Based on formula nK min For the variable n, take values ​​from 0 to... The integers are used to obtain the first set of positions;

[0505] Based on formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions;

[0506] in, Indicates to Perform rounding down. Indicates to Round up.

[0507] In some embodiments, the processing module 4201 is configured to:

[0508] Based on formula nK min For the variable n, take values ​​from 0 to... The integers are used to obtain the first set of positions;

[0509] Based on formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions;

[0510] in, Indicates to Perform rounding down. Indicates to Round up.

[0511] In some embodiments, the processing module 4201 is configured to:

[0512] Based on formula nK min For the variable n, take values ​​from 0 to... The integers are used to obtain the first set of positions;

[0513] Based on formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions;

[0514] in, Indicates to Perform rounding down. Indicates to Round up.

[0515] In some embodiments, the parameters used to determine the subcarrier position further include:

[0516] Offset, where Offset is a non-negative integer.

[0517] In some embodiments, the processing module 4201 is configured to:

[0518] Based on formula nK min +Offset, taking values ​​from 0 to 1 for variable n. The integers are used to obtain the first set of positions;

[0519] Based on formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions;

[0520] in, Indicates to Perform rounding down. Indicates to Round up.

[0521] In some embodiments, the processing module 4201 is configured to:

[0522] Based on formula nK min +Offset, taking values ​​from 0 to 1 for variable n. The integers are used to obtain the first set of positions;

[0523] Based on formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions;

[0524] in, Indicates to Perform rounding down. Indicates to Round up.

[0525] In some embodiments, the processing module 4201 is configured to:

[0526] Based on formula nK min +Offset, taking values ​​from 0 to 1 for variable n. The integers are used to obtain the first set of positions;

[0527] Based on formula For variable n, take values ​​from 1 to The integers are used to obtain the second set of positions;

[0528] in, Indicates to Perform rounding down. Indicates to Round up.

[0529] In some embodiments, the offset includes at least one of the following:

[0530] The first offset is k, where k is less than K. min non-negative integers;

[0531] Second offset K offset K is used to indicate the offset of the starting physical resource block of the sensing reference signal relative to common resource block 0. offset It is a non-negative integer multiple of the number of subcarriers contained in the physical resource block.

[0532] In some embodiments, the last subcarrier position in the first position set is the same as the first subcarrier position in the second position set; or, all subcarrier positions in the first position set are different from all subcarrier positions in the second position set.

[0533] In some embodiments, the subcarrier positions indicated by the first location set are uniformly distributed, the subcarrier positions indicated by the second location set are uniformly distributed, and the subcarrier frequency domain spacing in the first location set is different from the subcarrier frequency domain spacing in the second location set, and the subcarrier positions indicated by the subcarrier position set are non-uniformly distributed.

[0534] In some embodiments, the processing module 4201 is used to take the union of the subcarrier positions in the first position set and the second position set to obtain the subcarrier position set.

[0535] In some embodiments, both the sensing transmitter and the sensing receiver in the sensing network are base stations, and the sensing network employs a distributed control mechanism.

[0536] In some embodiments, one of the sensing transmitter and sensing receiver in the sensing network is a base station, and the other is a terminal.

[0537] In some embodiments, both the sensing transmitter and the sensing receiver in the sensing network are terminals.

[0538] According to the above embodiment, the transceiver module 4202 is used to receive at least one parameter sent by the sensing transmitter for determining the position of the subcarrier.

[0539] In some embodiments, both the sensing transmitter and the sensing receiver in the sensing network are base stations, and the sensing network adopts a centralized control mechanism.

[0540] In some embodiments, the sensing network includes multiple sensing transmitters, all of which are base stations, and the sensing receivers in the sensing network are terminals.

[0541] According to the above embodiments, the transceiver module 4202 is used to receive at least one parameter sent by the core network for determining the subcarrier position.

[0542] Optionally, the transceiver module 4202 is used to receive at least one parameter sent by the centralized control node in the core network for determining the subcarrier position.

[0543] Optionally, the transceiver module 4202 is used to receive at least one parameter sent by a core network element for determining the position of a subcarrier.

[0544] Optionally, the processing module 4201 is used to execute the steps in the above-described sensing reference signal receiving method, such as at least one of steps S3101, S3102, S3202, S3203, S3302, and S3303, but is not limited thereto.

[0545] Optionally, the transceiver module 4202 is used to perform communication steps such as sending and / or receiving in the above-described sensing reference signal receiving method, such as at least one of steps S3103, S3201, S3204, S3301, and S3304, but not limited thereto.

[0546] In some embodiments, the processing module 4201 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 4201. Optionally, the processing module 4201 may be interchangeable with a processor.

[0547] In some embodiments, the transceiver module 4202 may include a transmitting module and / or a receiving module, which may be separate or integrated together. Optionally, the transceiver module 4202 may be interchangeable with a transceiver.

[0548] Figure 5This is a schematic diagram of the structure of an electronic device proposed in an embodiment of this disclosure. The electronic device 5100 can be a sensing transmitter for transmitting sensing reference signals or a sensing receiver for receiving sensing reference signals. Specifically, the electronic device 5100 can be a network device (e.g., a base station) or a terminal. The electronic device 5100 can be used to implement the sensing reference signal transmission method or sensing reference signal reception method described in the above method embodiments, as detailed in the descriptions in the above method embodiments.

[0549] like Figure 5 As shown, the electronic device 5100 includes one or more processors 5101. The processor 5101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit. The electronic device 5100 is used to execute any of the methods described above in the sensing reference signal transmission method and the sensing reference signal reception method.

[0550] In some embodiments, the electronic device 5100 further includes one or more memories 5102 for storing instructions. Optionally, all or part of the memories 5102 may also be located outside the electronic device 5100.

[0551] In some embodiments, the electronic device 5100 further includes one or more transceivers 5103. When the electronic device 5100 includes one or more transceivers 5103, the transceivers 5103 perform at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2103, S2201, S2204, S2301, S2304, S3103, S3201, S3204, S3301, S3304, but not limited thereto), and the processor 5101 performs at least one of other steps (e.g., steps S2101, S2102, S2202, S2203, S2302, S2303, S3101, S3102, S3202, S3203, S3302, S3303).

[0552] In some embodiments, a transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc., may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably.

[0553] In some embodiments, the electronic device 5100 may include one or more interface circuits 5104. Optionally, the interface circuit 5104 is connected to the memory 5102, and the interface circuit 5104 can be used to receive signals from the memory 5102 or other devices, and can be used to send signals to the memory 5102 or other devices. For example, the interface circuit 5104 can read instructions stored in the memory 5102 and send the instructions to the processor 5101.

[0554] The electronic device 5100 described in the above embodiments may be a network device (e.g., a base station) or a terminal, but the scope of the electronic device 5100 described in this disclosure is not limited thereto, and the structure of the electronic device 5100 may vary. Figure 5 The limitations. Electronic devices can be standalone devices or part of a larger device. For example, the electronic devices can be: (1) standalone integrated circuits (ICs), or chips, or chip systems or subsystems; (2) a collection of one or more ICs, optionally including storage components for storing data or programs; (3) ASICs, such as modems; (4) modules that can be embedded in other devices; (5) receivers, terminal devices, smart terminal devices, cellular phones, wireless devices, handheld devices, mobile units, vehicle-mounted devices, network devices, cloud devices, artificial intelligence devices, etc.; (6) others, etc.

[0555] This disclosure also proposes a storage medium storing instructions that, when executed on an electronic device 5100, cause the electronic device 5100 to perform any of the aforementioned sensing reference signal transmission method and sensing reference signal reception method. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0556] This disclosure also proposes a program product that, when executed by an electronic device, causes the electronic device to perform any one of the aforementioned sensing reference signal transmission method and sensing reference signal reception method. Optionally, the aforementioned program product is a computer program product.

[0557] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above-described methods for transmitting and receiving sensing reference signals.

Claims

1. A method for transmitting a sensing reference signal, characterized in that, Performed by a sensing transmitter in a sensing network, the method includes: A first set of positions and a second set of positions are determined based on parameters used to determine the subcarrier positions, the first set of positions and the second set of positions being used to indicate the subcarrier positions; A subcarrier position set is obtained based on the first position set and the second position set, wherein the subcarrier position set is the union of the first position set and the second position set; A sensing reference signal is transmitted based on the subcarrier positions indicated by the subcarrier position set; The parameters used to determine the subcarrier position include: Minimum frequency domain spacing of sensing reference signal resource particles K min , K min It is a positive integer; First parameter N , N It is a positive integer greater than 1.

2. The method according to claim 1, characterized in that, The step of determining the first location set and the second location set based on parameters used to determine the subcarrier positions includes: Based on formula , for variables n Take from 0 to The integers are used to obtain the first set of positions; Based on formula , for variables n Take from 1 to The integers are used to obtain the second set of positions; in, Indicates to Perform rounding down. Indicates to Round up.

3. The method according to claim 1, characterized in that, The step of determining the first location set and the second location set based on parameters used to determine the subcarrier positions includes: Based on formula , for variables n Take from 0 to The integers are used to obtain the first set of positions; Based on formula , for variables n Take from 1 to The integers are used to obtain the second set of positions; in, Indicates to Perform rounding down. Indicates to Round up.

4. The method according to claim 1, characterized in that, The step of determining the first location set and the second location set based on parameters used to determine the subcarrier positions includes: Based on formula , for variables n Take from 0 to The integers are used to obtain the first set of positions; Based on formula , for variables n Take from 1 to The integers are used to obtain the second set of positions; in, Indicates to Perform rounding down. Indicates to Round up.

5. The method according to claim 1, characterized in that, The parameters used to determine the subcarrier position also include: Offset Offset , Offset It is a non-negative integer.

6. The method according to claim 5, characterized in that, The step of determining the first location set and the second location set based on parameters used to determine the subcarrier positions includes: Based on formula , for variables n Take from 0 to The integers are used to obtain the first set of positions; Based on formula , for variables n Take from 1 to The integers are used to obtain the second set of positions; in, Indicates to Perform rounding down. Indicates to Round up.

7. The method according to claim 5, characterized in that, The step of determining the first location set and the second location set based on parameters used to determine the subcarrier positions includes: Based on formula , for variables n Take from 0 to The integers are used to obtain the first set of positions; Based on formula , for variables n Take from 1 to The integers are used to obtain the second set of positions; in, Indicates to Perform rounding down. Indicates to Round up.

8. The method according to claim 5, characterized in that, The step of determining the first location set and the second location set based on parameters used to determine the subcarrier positions includes: Based on formula , for variables n Take from 0 to The integers are used to obtain the first set of positions; Based on formula , for variables n Take from 1 to The integers are used to obtain the second set of positions; in, Indicates to Perform rounding down. Indicates to Round up.

9. The method according to any one of claims 5 to 8, characterized in that, The offset Offset Includes at least one of the following: First offset k , k Less than K min non-negative integers; Second offset K offset This is used to indicate the offset of the starting physical resource block of the sensing reference signal relative to common resource block 0. K offset It is a non-negative integer multiple of the number of subcarriers contained in the physical resource block.

10. The method according to claim 1, characterized in that, The last subcarrier position in the first position set is the same as the first subcarrier position in the second position set; or, All subcarrier positions in the first position set are different from all subcarrier positions in the second position set.

11. The method according to claim 1, characterized in that, The subcarrier positions indicated by the first location set are uniformly distributed, the subcarrier positions indicated by the second location set are uniformly distributed, and the subcarrier frequency domain spacing in the first location set is different from that in the second location set, while the subcarrier positions indicated by the subcarrier position set are non-uniformly distributed.

12. The method according to claim 1, characterized in that, The step of obtaining the subcarrier position set based on the first position set and the second position set includes: The subcarrier position set is obtained by taking the union of the subcarrier positions in the first position set and the second position set.

13. The method according to any one of claims 1-8 and 10-12, characterized in that, The sensing transmitter and sensing receiver in the sensing network are both base stations, and the sensing network adopts a distributed control mechanism; the method further includes: At least one parameter used to determine the subcarrier position is sent to the sensing receiver.

14. The method according to any one of claims 1-8 and 10-12, characterized in that, The sensing transmitter and sensing receiver in the sensing network are both base stations, and the sensing network adopts a centralized control mechanism; the method further includes: Receive at least one parameter sent by the core network for determining the subcarrier position.

15. The method according to any one of claims 1-8 and 10-12, characterized in that, In the sensing network, one of the sensing transmitter and the sensing receiver is a base station, and the other is a terminal; the method further includes: At least one parameter used to determine the subcarrier position is sent to the sensing receiver.

16. The method according to any one of claims 1-8 and 10-12, characterized in that, The sensing network includes multiple sensing transmitters, all of which are base stations, and the sensing receivers in the sensing network are terminals; the method further includes: Receive at least one parameter sent by the core network for determining the subcarrier position.

17. The method according to any one of claims 1-8 and 10-12, characterized in that, Both the sensing transmitter and the sensing receiver in the sensing network are terminals; the method further includes: At least one parameter used to determine the subcarrier position is sent to the sensing receiver.

18. A method for receiving a sensing reference signal, characterized in that, Performed by a sensing receiver in a sensing network, the method includes: A first set of positions and a second set of positions are determined based on parameters used to determine the subcarrier positions, the first set of positions and the second set of positions being used to indicate the subcarrier positions; A subcarrier position set is obtained based on the first position set and the second position set, wherein the subcarrier position set is the union of the first position set and the second position set; Receive sensing reference signals based on the subcarrier positions indicated by the subcarrier position set; The parameters used to determine the subcarrier position include: Minimum frequency domain spacing of sensing reference signal resource particles K min , K min It is a positive integer; First parameter N , N It is a positive integer greater than 1.

19. The method according to claim 18, characterized in that, The step of determining the first location set and the second location set based on parameters used to determine the subcarrier positions includes: Based on formula , for variables n Take from 0 to The integers are used to obtain the first set of positions; Based on formula , for variables n Take from 1 to The integers are used to obtain the second set of positions; in, Indicates to Perform rounding down. Indicates to Round up.

20. The method according to claim 18, characterized in that, The step of determining the first location set and the second location set based on parameters used to determine the subcarrier positions includes: Based on formula , for variables n Take from 0 to The integers are used to obtain the first set of positions; Based on formula , for variables n Take from 1 to The integers are used to obtain the second set of positions; in, Indicates to Perform rounding down. Indicates to Round up.

21. The method according to claim 18, characterized in that, The step of determining the first location set and the second location set based on parameters used to determine the subcarrier positions includes: Based on formula , for variables n Take from 0 to The integers are used to obtain the first set of positions; Based on formula , for variables n Take from 1 to The integers are used to obtain the second set of positions; in, Indicates to Perform rounding down. Indicates to Round up.

22. The method according to claim 18, characterized in that, The parameters used to determine the subcarrier position also include: Offset Offset , Offset It is a non-negative integer.

23. The method according to claim 22, characterized in that, The step of determining the first location set and the second location set based on parameters used to determine the subcarrier positions includes: Based on formula , for variables n Take from 0 to The integers are used to obtain the first set of positions; Based on formula , for variables n Take from 1 to The integers are used to obtain the second set of positions; in, Indicates to Perform rounding down. Indicates to Round up.

24. The method according to claim 22, characterized in that, The step of determining the first location set and the second location set based on parameters used to determine the subcarrier positions includes: Based on formula , for variables n Take from 0 to The integers are used to obtain the first set of positions; Based on formula , for variables n Take from 1 to The integers are used to obtain the second set of positions; in, Indicates to Perform rounding down. Indicates to Round up.

25. The method according to claim 22, characterized in that, The step of determining the first location set and the second location set based on parameters used to determine the subcarrier positions includes: Based on formula , for variables n Take from 0 to The integers are used to obtain the first set of positions; Based on formula , for variables n Take from 1 to The integers are used to obtain the second set of positions; in, Indicates to Perform rounding down. Indicates to Round up.

26. The method according to any one of claims 22 to 25, characterized in that, The offset Offset Includes at least one of the following: First offset k , k Less than K min non-negative integers; Second offset K offset This is used to indicate the offset of the starting physical resource block of the sensing reference signal relative to common resource block 0. K offset It is a non-negative integer multiple of the number of subcarriers contained in the physical resource block.

27. The method according to claim 18, characterized in that, The last subcarrier position in the first position set is the same as the first subcarrier position in the second position set; or, All subcarrier positions in the first position set are different from all subcarrier positions in the second position set.

28. The method according to claim 18, characterized in that, The subcarrier positions indicated by the first location set are uniformly distributed, the subcarrier positions indicated by the second location set are uniformly distributed, and the subcarrier frequency domain spacing in the first location set is different from that in the second location set, while the subcarrier positions indicated by the subcarrier position set are non-uniformly distributed.

29. The method according to claim 18, characterized in that, The step of obtaining the subcarrier position set based on the first position set and the second position set includes: The subcarrier position set is obtained by taking the union of the subcarrier positions in the first position set and the second position set.

30. The method according to any one of claims 18-25 and 27-29, characterized in that, The sensing transmitter and sensing receiver in the sensing network are both base stations, and the sensing network adopts a distributed control mechanism; the method further includes: Receive at least one parameter sent by the sensing transmitter for determining the subcarrier position.

31. The method according to any one of claims 18-25 and 27-29, characterized in that, The sensing transmitter and sensing receiver in the sensing network are both base stations, and the sensing network adopts a centralized control mechanism; the method further includes: Receive at least one parameter sent by the core network for determining the subcarrier position.

32. The method according to any one of claims 18-25 and 27-29, characterized in that, In the sensing network, one of the sensing transmitter and the sensing receiver is a base station, and the other is a terminal; the method further includes: Receive at least one parameter sent by the sensing transmitter for determining the subcarrier position.

33. The method according to any one of claims 18-25 and 27-29, characterized in that, The sensing network includes multiple sensing transmitters, all of which are base stations, and the sensing receivers in the sensing network are terminals; the method further includes: Receive at least one parameter sent by the core network for determining the subcarrier position.

34. The method according to any one of claims 18-25 and 27-29, characterized in that, Both the sensing transmitter and the sensing receiver in the sensing network are terminals; the method further includes: Receive at least one parameter sent by the sensing transmitter for determining the subcarrier position.

35. A sensing transmitter, characterized in that, include: The processing module is configured to determine a first set of positions and a second set of positions based on parameters used to determine the subcarrier positions, and to obtain a subcarrier position set based on the first set of positions and the second set of positions, wherein the first set of positions and the second set of positions are used to indicate the subcarrier positions, and the subcarrier position set is the union of the first set of positions and the second set of positions; The transceiver module is configured to transmit a sensing reference signal based on the subcarrier positions indicated by the subcarrier position set; The parameters used to determine the subcarrier position include: Minimum frequency domain spacing of sensing reference signal resource particles K min , K min It is a positive integer; First parameter N , N It is a positive integer greater than 1.

36. A sensing receiver, characterized in that, include: The processing module is configured to determine a first set of positions and a second set of positions based on parameters used to determine the subcarrier positions, and to obtain a subcarrier position set based on the first set of positions and the second set of positions, wherein the first set of positions and the second set of positions are used to indicate the subcarrier positions, and the subcarrier position set is the union of the first set of positions and the second set of positions; The transceiver module is configured to receive a sensing reference signal based on the subcarrier position indicated by the subcarrier position set; The parameters used to determine the subcarrier position include: Minimum frequency domain spacing of sensing reference signal resource particles K min , K min It is a positive integer; First parameter N , N It is a positive integer greater than 1.

37. An electronic device, characterized in that, include: One or more processors; The electronic device is used to perform the sensing reference signal transmission method according to any one of claims 1 to 17.

38. An electronic device, characterized in that, include: One or more processors; The electronic device is used to perform the sensing reference signal receiving method according to any one of claims 18 to 34.

39. A sensing network, characterized in that, include: A sensing transmitter for performing the sensing reference signal transmission method according to any one of claims 1 to 17; A sensing receiver for performing the sensing reference signal receiving method according to any one of claims 18 to 34.

40. A computer-readable storage medium storing instructions, characterized in that, When the instructions are executed on an electronic device, the electronic device performs the sensing reference signal transmission method as described in any one of claims 1 to 17, or performs the sensing reference signal reception method as described in any one of claims 18 to 34.

Images