Communication method and corresponding apparatus
Patent Information
- Application Number
- PCT/CN2025/127229
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2025-02-25
- Filing Date
- 2025-10-13
- Publication Date
- 2026-09-03
Smart Images
Figure CN2025127229_03092026_PF_FP_ABST
Abstract
Description
A communication method and corresponding device
[0001] This application claims priority to Chinese Patent Application No. 202510218580.X, filed on February 25, 2025, entitled "A Communication Method and Corresponding Device", the entire contents of which are incorporated herein by reference. Technical Field
[0002] This application relates to the field of communication technology, specifically to a communication method and corresponding device. Background Technology
[0003] In a sensing scenario, the signal received by the receiver is often affected by the signals emitted by other transmitters in the vicinity, causing signal interference.
[0004] Currently, there are designs for resource patterns based on Channel State Information-Interference Measurement (CSI-IM) for interference measurement. The transmitter corresponding to the receiver does not use the CSI-IM resources to transmit signals, while other transmitters adjacent to the receiver can use these CSI-IM resources. In this way, the receiver can measure the strength of the interference signal and thus perform interference coordination.
[0005] Current interference measurement schemes have low accuracy in measuring interference, which still affects the sensing quality at the receiver. Summary of the Invention
[0006] This application provides a communication method for improving interference measurement accuracy, thereby improving sensing quality. This application also provides corresponding apparatus, computer-readable storage media, and computer program products.
[0007] The first aspect of this application provides a communication method applied to a first communication device. The first communication device can refer to the device itself, a component within the device responsible for communication and / or sensing functions (e.g., a processor, circuit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the first communication device. The circuit or chip responsible for communication and / or sensing functions can be a modem chip (also known as a baseband chip), a system-on-a-chip (SoC) chip containing a modem core, or a system-in-package (SIP) chip. The device can be a network device or a terminal device, and the network device can include access network equipment or core network equipment. The method includes: sending interference measurement configuration information to a second communication device; wherein the interference measurement configuration information is used to indicate at least one resource combination for interference measurement, wherein a plurality of resource elements in a first resource combination are uniformly distributed in the time domain direction and / or frequency domain direction of a first resource block, and the first resource combination is included in at least one resource combination; receiving an interference measurement report from the second communication device; wherein the interference measurement report is obtained based on interference measurement of at least one resource combination, and the interference measurement report is used for interference coordination.
[0008] In this application, the first communication device can be a central node, a sensing function (SF) network element, a sensing management function (SMF) network element, or a device corresponding to such a device. The central node can be a node that configures sensing parameters for the transmitting end or receiving end of the sensing signal, and / or a node that summarizes the sensing results. The central node can be a network device or a chip within a network device; of course, it can also be other types of devices. The SF network element / SMF network element can be a node used for sensing function management, or a node that performs all or part of the sensing function. The function and form of the SF network element / SMF network element can be the same as or similar to the central node. The transmitting end is also called a transmitting node, and the receiving end is also called a receiving node. A transmitting node refers to a node used to transmit sensing signals, and a receiving node refers to a node used to receive the echo signals of the sensing signals.
[0009] In this application, the second communication device can be a device corresponding to a receiving node or a sensing node; wherein, a sensing node refers to a node that integrates a transmitting end of sensing signals and a receiving end of echo signals.
[0010] In this application, the transmitting node, receiving node, or sensing node can all be access network equipment or chips in access network equipment, terminal equipment or chips in terminal equipment.
[0011] In this application, interference measurement configuration information refers to configuration information used for interference measurement. This configuration information may include one or more types of information, which can indicate different functions, such as information indicating resource elements (REs) used for interference measurement, information indicating resource blocks (RBs) used for interference measurement, or information indicating the timing of interference measurement. An RE is typically the smallest resource unit, consisting of a time-domain symbol (e.g., an orthogonal frequency division multiplexing (OFDM) symbol) and a subcarrier in the frequency domain. The number of REs in an RB is related to the number of time-domain symbols and the number of subcarriers. For example, the number of REs in an RB can be the product of the number of time-domain symbols and the number of subcarriers. For instance, if an RB includes 7 time-domain symbols and 12 subcarriers, then an RB includes 7 * 12 = 84 REs; if an RB includes 14 time-domain symbols and 12 subcarriers, then an RB includes 14 * 12 = 168 REs. Of course, the structure of an RB can also vary, and this application does not limit this.
[0012] In this application, at least one resource combination includes a first resource combination, which can be used to indicate a resource pattern for interference measurement. The first resource combination includes a plurality of resource elements, which are uniformly distributed in the time domain and / or frequency domain directions of a first resource block. The first resource block can be any resource block used for interference measurement.
[0013] In this application, if there are multiple resource combinations, the multiple resource units in other resource combinations can be uniformly distributed in the time domain and / or frequency domain of the first resource block, or they can be non-uniformly distributed. Even if the multiple resource units in each resource combination are uniformly distributed in the time domain and / or frequency domain of the first resource block, the total number of resource units corresponding to the multiple resource combinations can still be non-uniformly distributed on the first resource block. That is, a non-uniformly distributed resource pattern for interference measurement can be obtained through uniformly distributed resource combinations.
[0014] In this application, the time-domain direction refers to the direction of multiple time-domain symbols corresponding to any subcarrier of the first resource block; the frequency-domain direction refers to the direction of multiple subcarriers corresponding to any time-domain symbol of the first resource block. Uniform distribution means that the multiple time-domain symbols corresponding to a certain subcarrier are evenly distributed, or that the multiple subcarriers corresponding to a certain time-domain symbol are evenly distributed.
[0015] In this application, the interference measurement report may include multiple pieces of information obtained through interference measurement, such as: channel state information reference signal received power (CSI-RSRP), channel state information received signal strength indication (CSI-RSSI), channel state information signal to interference plus noise ratio (CSI-SINR), sensing reference signal reference signal received power (sensing RS-RSRP), and cross link interference received signal strength indication (CLI-RSSI), etc.
[0016] In this application, interference coordination refers to the first communication device coordinating with other interference sources that interfere with the sensing process of the second communication device to adjust at least one of the following: signal transmission power, signal transmission time, carrier frequency, or beam angle, or other operations that may reduce interference.
[0017] In the first aspect mentioned above, because the multiple resource units in the first resource combination are uniformly distributed in the time domain and / or frequency domain of the first resource block, the second communication device can measure interference from multiple locations or angles during interference measurement, thus improving the accuracy of interference measurement. Especially in scenarios involving moving targets, where the interference sources change with the movement of the target, the uniform distribution of multiple resource units for interference measurement is more conducive to flexibly measuring interference from different sources as the target moves, thereby improving the accuracy of interference measurement and enhancing the quality of perception.
[0018] In one possible implementation, interference measurement configuration information is used to indicate a pattern index for at least one combination of resources.
[0019] In this possible implementation, at least one resource combination is fixed using a pattern index, and the second communication device can determine the resource pattern of the corresponding at least one resource combination based on the pattern index. This can reduce the air interface transmission overhead between the first and second communication devices.
[0020] In one possible implementation, interference measurement configuration information is used to indicate at least one frequency domain resource density, wherein the first frequency domain resource density is used to indicate the number of resource units in a first resource combination uniformly distributed in the frequency domain direction corresponding to the first time domain symbol; wherein the first time domain symbol is any time domain symbol in the first resource block, and the first frequency domain resource density is included in at least one frequency domain resource density.
[0021] In this application, at least one frequency domain resource density includes a first frequency domain resource density. The value of the frequency domain resource density is related to the number of subcarriers in the resource block. Taking a resource block containing 12 subcarriers as an example, the value of the frequency domain resource density can be 1, 2, 3, 4, 6, or 12. If F-Density is used to represent the frequency domain resource density, then F-Density = {1, 2, 3, 4, 6, 12}.
[0022] In this possible implementation, one frequency domain resource density can correspond to one resource combination, or in other words, at least one frequency domain resource density can be one-to-one with at least one resource combination. Thus, by indicating at least one resource combination using at least one frequency domain resource density, the second communication device can flexibly determine the resource pattern used for interference measurement based on at least one frequency domain resource density. Therefore, indicating at least one resource combination using at least one frequency domain resource density can improve the flexibility of resource combination configuration.
[0023] In one possible implementation, the interference measurement configuration information is further used to indicate a first starting position, which is the starting position of multiple resource elements in the first resource combination on the first time domain symbol. The value corresponding to the first starting position is less than or equal to a first interval value, which is the ratio of the number of subcarriers corresponding to the first resource block to the first frequency domain resource density.
[0024] In this application, the first starting position can be the starting position of multiple resource elements on multiple subcarriers corresponding to the first time domain symbol, such as: multiple resource elements are evenly distributed starting from the first subcarrier, or multiple resource elements are evenly distributed starting from the second subcarrier, etc.
[0025] In this application, the unit of the first interval value is the sub-carrier space (SCS), and the first interval value = 3, which means 3*SCS.
[0026] In this application, taking the number of subcarriers corresponding to the first resource block as 12 as an example, if the first frequency domain resource density is equal to 3, then the first interval value = 12 / 3 = 4. Therefore, the first starting position includes 1, 2, 3, or 4, meaning that 3 resource units are evenly distributed starting from the 1st, 2nd, 3rd, or 4th subcarrier. If the first frequency domain resource density is equal to 4, then the first interval value = 12 / 4 = 3. Therefore, the first starting position includes 1, 2, or 3, meaning that 4 resource units are evenly distributed starting from the 1st, 2nd, or 3rd subcarrier.
[0027] In this possible implementation, the interference measurement configuration information is also used to indicate the first starting position, which can facilitate the second communication device to quickly determine the resource pattern for interference measurement and improve the speed of interference measurement.
[0028] In one possible implementation, the interference measurement configuration information is also used to indicate the index of the first time-domain symbol.
[0029] In this possible implementation, the interference measurement configuration information is also used to indicate the index of the first time-domain symbol, which can facilitate the second communication device to quickly determine the resource pattern used for interference measurement and improve the speed of interference measurement.
[0030] In one possible implementation, interference measurement configuration information is used to indicate at least one time-domain resource density, wherein the first time-domain resource density is used to indicate the number of resource units in a first resource combination uniformly distributed in the time-domain direction corresponding to the first subcarrier; wherein the first subcarrier is any subcarrier in the first resource block, and the first time-domain resource density is included in at least one time-domain resource density.
[0031] In this application, at least one time-domain resource density includes a first time-domain resource density. The value of the time-domain resource density is related to the number of time-domain symbols in the resource block. Taking a resource block containing 14 time-domain symbols as an example, the value of the time-domain resource density can be 1, 2, 7 or 14. If T-Density is used to represent the frequency-domain resource density, then T-Density = {1, 2, 7, 14}.
[0032] In this possible implementation, one time-domain resource density can correspond to one resource combination, or in other words, at least one time-domain resource density can be one-to-one with at least one resource combination. Thus, by indicating at least one resource combination using at least one time-domain resource density, the second communication device can flexibly determine the resource pattern used for interference measurement based on at least one time-domain resource density. Therefore, indicating at least one resource combination using at least one time-domain resource density can improve the flexibility of resource combination configuration.
[0033] In one possible implementation, the interference measurement configuration information is further used to indicate a second starting position, which is the starting position of multiple resource elements in the first resource combination on the first subcarrier. The value corresponding to the second starting position is less than or equal to a second interval value, which is the ratio of the number of time-domain symbols corresponding to the first resource block to the first time-domain resource density.
[0034] In this application, the second starting position can be the starting position of multiple resource units on multiple time-domain symbols corresponding to the first subcarrier, such as: multiple resource units are evenly distributed starting from the first time-domain symbol, or multiple resource units are evenly distributed starting from the second time-domain symbol, etc.
[0035] In this application, the second interval value -1 represents the number of time-domain symbols between two resource units, or the second interval value represents the number of time-domain symbols from any position of a resource unit (e.g., start position, center position, or end position) to the corresponding position of the next adjacent resource unit. The unit of the second interval value can be a symbol.
[0036] In this application, taking the number of time-domain symbols corresponding to the first resource block as an example, if the first time-domain resource density is equal to 2, then the second interval value = 14 / 2 = 7. Therefore, the second starting position includes 1, 2, 3, 4, 5, 6, or 7, meaning that two resource units are evenly distributed starting from any one of the first to the seventh time-domain symbols. If the first time-domain resource density is equal to 7, then the second interval value = 12 / 7 = 2. Therefore, the second starting position includes 1 or 2, meaning that seven resource units are evenly distributed starting from either the first or second subcarrier.
[0037] In this possible implementation, the interference measurement configuration information is also used to indicate the second starting position, which can facilitate the second communication device to quickly determine the resource pattern for interference measurement and improve the speed of interference measurement.
[0038] In one possible implementation, the interference measurement configuration information is also used to indicate the index of the first subcarrier.
[0039] In this possible implementation, the interference measurement configuration information is also used to indicate the index of the first subcarrier, which can facilitate the second communication device to quickly determine the resource pattern for interference measurement and improve the speed of interference measurement.
[0040] In one possible implementation, interference measurement configuration information is used to indicate at least one time-frequency resource density, wherein the first time-frequency resource density is used to indicate the number of resource units in a first resource combination uniformly distributed on each of N second time-domain symbols, the N second time-domain symbols being uniformly distributed in a first resource block, and the first time-frequency resource density being included in at least one time-frequency resource density.
[0041] In this application, at least one time-frequency resource density includes a first time-frequency resource density. The first time-frequency resource density refers to an array composed of frequency-domain resource densities and time-domain resource densities, such as (3,2) which represents a frequency-domain resource density of 3 and a time-domain resource density of 2. Of course, this application does not limit the order of the frequency-domain and time-domain resource densities in the array, where N is an integer greater than 1. Combining the above-mentioned range of values for frequency-domain resource densities, the range of values for time-frequency resource densities can be TF-Density = T-Density × F-Density = {1,2,7,14} × {1,2,3,4,6,12} or FT-Density = F-Density × T-Density = {1,2,3,4,6,12} × {1,2,7,14}.
[0042] In this application, the first time-frequency resource density can represent the number of resource units in the first resource combination uniformly distributed on each second time-domain symbol, and the number of second time-domain symbols. Alternatively, the first time-frequency resource density can also represent the number of resource units in the first resource combination uniformly distributed on each second subcarrier, and the number of second subcarriers. Multiple second time-domain symbols or multiple subcarriers are uniformly distributed in the first resource block. For example, (3,2) can represent two second time-domain symbols, where each second time-domain symbol uniformly distributes three resource units from the first resource combination, with the two second time-domain symbols being uniformly distributed; or it can represent three second subcarriers, where each second subcarrier uniformly distributes two resource units from the first resource combination, with the three second subcarriers being uniformly distributed.
[0043] In this possible implementation, one time-frequency resource density can correspond to one resource combination, or in other words, at least one time-frequency resource density can be one-to-one with at least one resource combination. Thus, by indicating at least one resource combination using at least one time-frequency resource density, the second communication device can flexibly determine the resource pattern used for interference measurement based on at least one time-frequency resource density. Therefore, indicating at least one resource combination using at least one time-frequency resource density can improve the flexibility of resource combination configuration.
[0044] In one possible implementation, the interference measurement configuration information is further used to indicate the index of each subcarrier corresponding to the first resource combination, or the interference measurement configuration information is further used to indicate a third starting position; wherein the third starting position is the starting position of multiple resource elements in the first resource combination on a second time domain symbol, the value corresponding to the third starting position is less than or equal to a third interval value, and the third interval value is the ratio of the number of subcarriers corresponding to the first resource block to the number of resource elements in the first resource combination on a second time domain symbol.
[0045] In this application, the index of each subcarrier corresponding to the first resource combination refers to the index of the subcarriers in which resource units in the first resource combination are distributed.
[0046] In this application, the third starting position refers to the starting position of multiple resource elements on multiple subcarriers corresponding to the second time domain symbol. The third starting position can be understood by referring to the first starting position. The third interval value can be understood by referring to the first interval value.
[0047] In this possible implementation, the interference measurement configuration information is also used to indicate the index or third starting position of each subcarrier corresponding to the first resource combination, which can facilitate the second communication device to quickly determine the resource pattern for interference measurement and improve the speed of interference measurement.
[0048] In one possible implementation, the interference measurement configuration information is further used to indicate the index of N second time-domain symbols; or, the interference measurement configuration information is further used to indicate a fourth starting position; wherein the fourth starting position is the starting position of N second time-domain symbols, the value corresponding to the fourth starting position is less than or equal to the fourth interval value, and the fourth interval value is the ratio of the number of time-domain symbols corresponding to the first resource block to N.
[0049] In this application, the fourth starting position can be understood by referring to the second starting position. The fourth interval value can be understood by referring to the second interval value.
[0050] In this possible implementation, the interference measurement configuration information is also used to indicate the index of N second time-domain symbols or the fourth starting position, which can facilitate the second communication device to quickly determine the resource pattern for interference measurement and improve the speed of interference measurement.
[0051] In one possible implementation, the interference measurement configuration information includes at least one of the following: information on resource patterns, table information, or formula information for indicating at least one combination of resources.
[0052] This possible implementation provides multiple possible forms of information for indicating at least one combination of resources, increasing the flexibility of the method of indicating at least one combination of resources.
[0053] In one possible implementation, the method further includes: sending a first indication message to a third communication device; wherein the first indication message is used to instruct the third communication device to perform interference adjustment.
[0054] In this application, the third communication device can be an interference source that interferes with the sensing process of the second communication device, and can be an access network device or a terminal device.
[0055] In this possible implementation, the first communication device can coordinate interference through the first instruction information, thereby reducing the interference of the third communication device on the sensing process and improving the sensing quality.
[0056] A second aspect of this application provides a communication method applied to a second communication device. The second communication device can refer to the device itself, a component within the device responsible for communication and / or sensing functions (e.g., a processor, circuit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the second communication device. The circuit or chip responsible for communication and / or sensing functions can be a modem chip (also known as a baseband chip), a system-on-a-chip (SoC) chip containing a modem core, or a system-in-package (SIP) chip. The device can be an access network device or a terminal device. The method includes: receiving interference measurement configuration information from a first communication device; wherein the interference measurement configuration information indicates at least one resource combination for interference measurement, wherein multiple resource elements in the first resource combination are uniformly distributed in the time domain and / or frequency domain direction of a first resource block, and the first resource combination is included in at least one resource combination; and sending an interference measurement report to the first communication device; wherein the interference measurement report is obtained based on interference measurement using at least one resource combination, and the interference measurement report is used for interference coordination.
[0057] In the second aspect mentioned above, because the multiple resource units in the first resource combination are uniformly distributed in the time domain and / or frequency domain of the first resource block, the second communication device can measure interference from multiple locations or angles during interference measurement, thus improving the accuracy of interference measurement. Especially in scenarios involving moving targets, where the interference sources change with the movement of the target, the uniform distribution of multiple resource units for interference measurement is more conducive to flexibly measuring interference from different sources as the target moves, thereby improving the accuracy of interference measurement and enhancing the quality of perception.
[0058] In one possible implementation, interference measurement configuration information is used to indicate a pattern index for at least one combination of resources.
[0059] In one possible implementation, interference measurement configuration information is used to indicate at least one frequency domain resource density, wherein the first frequency domain resource density is used to indicate the number of resource units in a first resource combination uniformly distributed in the frequency domain direction corresponding to the first time domain symbol; wherein the first time domain symbol is any time domain symbol in the first resource block, and the first frequency domain resource density is included in at least one frequency domain resource density.
[0060] In one possible implementation, the interference measurement configuration information is further used to indicate a first starting position, which is the starting position of multiple resource elements in the first resource combination on the first time domain symbol. The value corresponding to the first starting position is less than or equal to a first interval value, which is the ratio of the number of subcarriers corresponding to the first resource block to the first frequency domain resource density.
[0061] In one possible implementation, the interference measurement configuration information is also used to indicate the index of the first time-domain symbol.
[0062] In one possible implementation, interference measurement configuration information is used to indicate at least one time-domain resource density, wherein the first time-domain resource density is used to indicate the number of resource units in a first resource combination uniformly distributed in the time-domain direction corresponding to the first subcarrier; wherein the first subcarrier is any subcarrier in the first resource block, and the first time-domain resource density is included in at least one time-domain resource density.
[0063] In one possible implementation, the interference measurement configuration information is further used to indicate a second starting position, which is the starting position of multiple resource elements in the first resource combination on the first subcarrier. The value corresponding to the second starting position is less than or equal to a second interval value, which is the ratio of the number of time-domain symbols corresponding to the first resource block to the first time-domain resource density.
[0064] In one possible implementation, the interference measurement configuration information is also used to indicate the index of the first subcarrier.
[0065] In one possible implementation, interference measurement configuration information is used to indicate at least one time-frequency resource density, wherein the first time-frequency resource density is used to indicate the number of resource units in a first resource combination uniformly distributed on each of N second time-domain symbols, the N second time-domain symbols being uniformly distributed in a first resource block, and the first time-frequency resource density being included in at least one time-frequency resource density.
[0066] In one possible implementation, the interference measurement configuration information is further used to indicate the index of each subcarrier corresponding to the first resource combination, or the interference measurement configuration information is further used to indicate a third starting position; wherein the third starting position is the starting position of multiple resource elements in the first resource combination on a second time domain symbol, the value corresponding to the third starting position is less than or equal to a third interval value, and the third interval value is the ratio of the number of subcarriers corresponding to the first resource block to the number of resource elements in the first resource combination on a second time domain symbol.
[0067] In one possible implementation, the interference measurement configuration information is further used to indicate the index of N second time-domain symbols; or, the interference measurement configuration information is further used to indicate a fourth starting position; wherein the fourth starting position is the starting position of N second time-domain symbols, the value corresponding to the fourth starting position is less than or equal to the fourth interval value, and the fourth interval value is the ratio of the number of time-domain symbols corresponding to the first resource block to N.
[0068] In one possible implementation, the interference measurement configuration information includes at least one of the following: information on resource patterns, table information, or formula information for indicating at least one combination of resources.
[0069] A third aspect of this application provides a communication method applied to a first communication device. The first communication device can refer to the device itself, a component within the device responsible for communication and / or sensing functions (e.g., a processor, circuit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the first communication device. The circuit or chip responsible for communication and / or sensing functions can be a modem chip (also known as a baseband chip), a system-on-a-chip (SoC) chip containing a modem core, or a system-in-package (SIP) chip. The device can be a network device or a terminal device, and the network device can include access network equipment or core network equipment. The method includes: sending interference measurement configuration information to a second communication device; wherein the interference measurement configuration information is used to indicate the correlation between a first resource combination and a resource combination of a reference signal, the first resource combination is used by the second communication device to determine interference measurement information, and the interference measurement information is used for interference cancellation.
[0070] In this application, the first communication device can be a central node, a sensing function (SF) network element, a sensing management function (SMF) network element, or a device corresponding to such a device. The central node can be a node that configures sensing parameters for the transmitting end or receiving end of the sensing signal, and / or a node that summarizes the sensing results. The central node can be a network device or a chip within a network device; of course, it can also be other types of devices. The SF network element / SMF network element can be a node used for sensing function management, or a node that performs all or part of the sensing function. The function and form of the SF network element / SMF network element can be the same as or similar to the central node. The transmitting end is also called a transmitting node, and the receiving end is also called a receiving node. A transmitting node refers to a node used to transmit sensing signals, and a receiving node refers to a node used to receive the echo signals of the sensing signals.
[0071] In this application, the second communication device can be a device corresponding to a receiving node or a sensing node; wherein, a sensing node refers to a node that integrates a transmitting end of sensing signals and a receiving end of echo signals.
[0072] In this application, the transmitting node, receiving node, or sensing node can all be access network equipment or chips in access network equipment, terminal equipment or chips in terminal equipment.
[0073] In this application, interference measurement configuration information refers to configuration information used for interference measurement.
[0074] In this application, the first resource combination being related to the resource combination of the reference signal means that the first resource combination can be obtained by relying on the resource combination of the reference signal, such as obtaining the first resource combination by performing sparsification processing on the resource combination of the reference signal.
[0075] In this application, the reference signal may include at least one of a positioning reference signal (PRS), a sounding reference signal (SRS), a sensing reference signal (sensing RS), a channel state information reference signal (CSI-RS), a synchronization signaling block (SSB), or a demodulation reference signal (DMRS). The sensing reference signal is used for sensing.
[0076] In this application, since the first resource combination used for interference measurement is related to the resource combination of the reference signal, the second communication device can obtain, in addition to channel state information-reference signal received power (CSI-RSRP), channel state information-received signal strength indication (CSI-RSSI), channel state information-signal to interference plus noise ratio (CSI-SINR), sensing reference signal-reference signal received power (sensing RS-RSRP), and cross link interference-received signal strength indication (CLI-RSSI), at least one of the following: channel impulse response (CIR), range angle velocity (RAV) spectrum, power delay profile (PDP), or multi-path channel (MPC) information when performing interference measurement.
[0077] In the third aspect described above, since the first resource combination used for interference measurement is related to the resource combination of the reference signal, the second communication device can obtain more detailed interference measurement information as described above when measuring interference. This interference measurement information can estimate the interference in the sensing process, and then eliminate the interference in the sensing process, thereby improving the sensing quality.
[0078] In one possible implementation, interference measurement configuration information is used to indicate sparsity, which in turn indicates the degree of sparsity of the first resource combination relative to the resource combination of the reference signal.
[0079] In this application, the sparsity value can be any value within (0,1]. For example, the sparsity value can be 1 / 2n, where n is a natural number, such as: sparsity = {1, 1 / 2, 1 / 4, 1 / 8, ...}. The sparsity of the first resource combination relative to the resource combination of the reference signal refers to how the first resource is determined according to the sparsity and the resource combination of the reference signal. For example, if the sparsity = 1 / 2, it means that half of the resources in the resource combination of the reference signal are used for interference measurement; if the sparsity = 1, it means that the same resources in the resource combination of the reference signal are used for interference measurement.
[0080] In this possible implementation, sparsity is used to indicate the sparsity of the first resource combination relative to the resource combination of the reference signal, which can reduce the indication overhead of the first resource combination. Simultaneously, the sparsity processing is usually uniform sparsity processing, meaning that the resulting first resource combination has a similar shape to the resource combination of the reference signal. One possible implementation is uniform sparse sampling within the resource combination of the reference signal. For example, when the reference signal is a single-symbol DMRS, it occupies 12 subcarriers in one time-domain symbol, with a subcarrier spacing of 12 / 12 = 1 SCS. When the sparsity is 1 / 2, the first resource group corresponding to its uniform sparse sampling is located in the same time-domain symbol as the DMRS, occupying 6 subcarriers in that time-domain symbol, with a subcarrier spacing of 12 / 6 = 2 SCS.
[0081] In one possible implementation, the method further includes: receiving interference measurement information from a second communication device, the interference measurement information being obtained based on interference measurement performed by the second communication device based on a first resource combination.
[0082] In this application, interference measurement information can be carried in the interference measurement report received.
[0083] In one possible implementation, the method further includes: receiving sensing measurement information from a second communication device, the sensing measurement information including first interference information; and performing interference cancellation on the sensing measurement information based on the interference measurement information.
[0084] In this application, the sensing measurement information may be included in the interference measurement report or may be separate from the interference measurement report.
[0085] In this possible implementation, the first communication device can eliminate interference in the sensing measurement information based on the interference measurement information, thereby improving the sensing quality.
[0086] In one possible implementation, the above steps, namely: canceling interference on the sensed measurement information based on the interference measurement information, include: estimating first interference information based on the interference measurement information; and canceling the first interference information based on the estimation result of the first interference information.
[0087] In this possible implementation, the first communication device can estimate the first interference information in the sensing measurement information based on the interference measurement information, and then perform interference cancellation on the sensing measurement information to improve the sensing quality.
[0088] In one possible implementation, the method further includes: sending first configuration information of a reference signal to a third communication device, the first configuration information of the reference signal being used by the third communication device to perform interference measurement and / or interference cancellation.
[0089] In this application, the third communication device can be a device near the transmitting node, and the process of the transmitting node transmitting signals may interfere with the third communication device. The third communication device can be an access network device or a terminal device.
[0090] In this application, the first configuration information may include a resource combination of reference signals, and of course, it may also be used to indicate sparsity. In this way, the third communication device can use the sparsity and the resource combination of reference signals to determine the first resource combination for interference measurement.
[0091] In this possible implementation, the first communication device can instruct the third communication device to perform interference measurement and / or interference cancellation by sending first configuration information of a reference signal to the third communication device, thereby reducing the impact of sensing on the third communication device.
[0092] In one possible implementation, the method further includes: receiving a first response from a third communication device; and determining, based on the first response, second configuration information for whether to transmit a reference signal, wherein the first response is determined by interference measurement performed by the third communication device based on the first configuration information.
[0093] In this application, the second configuration information may be the same as or different from the first configuration information.
[0094] In this possible implementation, the first response can indicate the level of interference of the sensing process on the third communication device, such as: minor interference or major interference. If the first response indicates minor interference, the first communication device does not need to send the second configuration information to the third communication device, thereby reducing communication overhead. If the first response indicates major interference, the first communication device can send the second configuration information to the third communication device, so that the third communication device can use the second configuration information to continue interference cancellation, thereby reducing the interference of the sensing process on the third communication device.
[0095] A fourth aspect of this application provides a communication method applied to a second communication device. The second communication device can refer to the device itself, a component within the device responsible for communication and / or sensing functions (e.g., a processor, circuit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the second communication device. The circuit or chip responsible for communication and / or sensing functions may be a modem chip (also known as a baseband chip), a system-on-a-chip (SoC) chip containing a modem core, or a system-in-package (SIP) chip. The device can be an access network device or a terminal device. The method includes: receiving interference measurement configuration information from a first communication device; wherein the interference measurement configuration information is used to indicate the correlation between a first resource combination and a resource combination of a reference signal; determining interference measurement information based on the first resource combination, the interference measurement information being used for interference cancellation.
[0096] In the fourth aspect above, because the first resource combination used for interference measurement is related to the resource combination of the reference signal, the second communication device can obtain more refined interference measurement information as described above when measuring interference. This interference measurement information can estimate the interference in the sensing process, and then eliminate the interference in the sensing process, thereby improving the sensing quality.
[0097] In one possible implementation, interference measurement configuration information is used to indicate sparsity, which in turn indicates the degree of sparsity of the first resource combination relative to the resource combination of the reference signal.
[0098] In one possible implementation, the reference signal includes a positioning reference signal, a detection reference signal, a sensing reference signal, a channel state information reference signal, a synchronization signal, or a demodulation reference signal.
[0099] In one possible implementation, the method further includes: estimating first interference information in the perceived measurement information based on interference measurement information; and eliminating the first interference information in the perceived measurement information based on the estimation result of the first interference information.
[0100] In one possible implementation, the method further includes: sending interference measurement information and sensing measurement information to a first communication device, wherein the sensing measurement information includes first interference information, and the interference measurement information is used by the first communication device to cancel interference in the first interference information in the sensing measurement information.
[0101] In one possible implementation, the interference measurement information includes at least one of the following: channel impulse response, range-angle velocity spectrum, power delay spectrum, or multipath information.
[0102] A fifth aspect of this application provides a communication device, comprising: a transceiver unit and a processing unit; wherein,
[0103] A transceiver unit is configured to send interference measurement configuration information to a second communication device; wherein the interference measurement configuration information is used to indicate at least one resource combination for interference measurement, wherein a plurality of resource elements in a first resource combination are uniformly distributed in the time domain direction and / or frequency domain direction of a first resource block, and the first resource combination is included in at least one resource combination.
[0104] The transceiver unit is also configured to receive an interference measurement report from a second communication device; wherein the interference measurement report is obtained by interference measurement based on at least one combination of resources, and the interference measurement report is used for interference coordination.
[0105] The processing unit can be used to determine interference measurement configuration information.
[0106] In one possible implementation, interference measurement configuration information is used to indicate a pattern index for at least one combination of resources.
[0107] In one possible implementation, interference measurement configuration information is used to indicate at least one frequency domain resource density, wherein the first frequency domain resource density is used to indicate the number of resource units in a first resource combination uniformly distributed in the frequency domain direction corresponding to the first time domain symbol; wherein the first time domain symbol is any time domain symbol in the first resource block, and the first frequency domain resource density is included in at least one frequency domain resource density.
[0108] In one possible implementation, the interference measurement configuration information is further used to indicate a first starting position, which is the starting position of multiple resource elements in the first resource combination on the first time domain symbol. The value corresponding to the first starting position is less than or equal to a first interval value, which is the ratio of the number of subcarriers corresponding to the first resource block to the first frequency domain resource density.
[0109] In one possible implementation, the interference measurement configuration information is also used to indicate the index of the first time-domain symbol.
[0110] In one possible implementation, the interference measurement configuration information is further used to indicate a second starting position, which is the starting position of multiple resource elements in the first resource combination on the first subcarrier. The value corresponding to the second starting position is less than or equal to a second interval value, which is the ratio of the number of time-domain symbols corresponding to the first resource block to the first time-domain resource density.
[0111] In one possible implementation, the interference measurement configuration information is also used to indicate the index of the first subcarrier.
[0112] In one possible implementation, interference measurement configuration information is used to indicate at least one time-frequency resource density, wherein the first time-frequency resource density is used to indicate the number of resource units in a first resource combination uniformly distributed on each of N second time-domain symbols, the N second time-domain symbols being uniformly distributed in a first resource block, and the first time-frequency resource density being included in at least one time-frequency resource density.
[0113] In one possible implementation, the interference measurement configuration information is further used to indicate the index of each subcarrier corresponding to the first resource combination, or the interference measurement configuration information is further used to indicate a third starting position; wherein the third starting position is the starting position of multiple resource elements in the first resource combination on a second time domain symbol, the value corresponding to the third starting position is less than or equal to a third interval value, and the third interval value is the ratio of the number of subcarriers corresponding to the first resource block to the number of resource elements in the first resource combination on a second time domain symbol.
[0114] In one possible implementation, the interference measurement configuration information is further used to indicate the index of N second time-domain symbols; or, the interference measurement configuration information is further used to indicate a fourth starting position; wherein the fourth starting position is the starting position of N second time-domain symbols, the value corresponding to the fourth starting position is less than or equal to the fourth interval value, and the fourth interval value is the ratio of the number of time-domain symbols corresponding to the first resource block to N.
[0115] In one possible implementation, the interference measurement configuration information includes at least one of the following: information on resource patterns, table information, or formula information for indicating at least one combination of resources.
[0116] In one possible implementation, the transceiver unit is further configured to send a first indication message to a third communication device; wherein the first indication message is used to instruct the third communication device to perform interference adjustment.
[0117] A sixth aspect of this application provides a communication device, comprising: a transceiver unit and a processing unit; wherein,
[0118] A transceiver unit is configured to receive interference measurement configuration information from a first communication device; wherein the interference measurement configuration information is used to indicate at least one resource combination for interference measurement, wherein a plurality of resource elements in the first resource combination are uniformly distributed in the time domain direction and / or frequency domain direction of a first resource block, and the first resource combination is included in at least one resource combination.
[0119] The transceiver unit is also used to send an interference measurement report to the first communication device; wherein the interference measurement report is obtained by interference measurement based on at least one combination of resources, and the interference measurement report is used for interference coordination.
[0120] The processing unit can be used to perform interference measurement based on the interference measurement configuration information.
[0121] In one possible implementation, interference measurement configuration information is used to indicate a pattern index for at least one combination of resources.
[0122] In one possible implementation, interference measurement configuration information is used to indicate at least one frequency domain resource density, wherein the first frequency domain resource density is used to indicate the number of resource units in a first resource combination uniformly distributed in the frequency domain direction corresponding to the first time domain symbol; wherein the first time domain symbol is any time domain symbol in the first resource block, and the first frequency domain resource density is included in at least one frequency domain resource density.
[0123] In one possible implementation, the interference measurement configuration information is further used to indicate a first starting position, which is the starting position of multiple resource elements in the first resource combination on the first time domain symbol. The value corresponding to the first starting position is less than or equal to a first interval value, which is the ratio of the number of subcarriers corresponding to the first resource block to the first frequency domain resource density.
[0124] In one possible implementation, the interference measurement configuration information is also used to indicate the index of the first time-domain symbol.
[0125] In one possible implementation, interference measurement configuration information is used to indicate at least one time-domain resource density, wherein the first time-domain resource density is used to indicate the number of resource units in a first resource combination uniformly distributed in the time-domain direction corresponding to the first subcarrier; wherein the first subcarrier is any subcarrier in the first resource block, and the first time-domain resource density is included in at least one time-domain resource density.
[0126] In one possible implementation, the interference measurement configuration information is further used to indicate a second starting position, which is the starting position of multiple resource elements in the first resource combination on the first subcarrier. The value corresponding to the second starting position is less than or equal to a second interval value, which is the ratio of the number of time-domain symbols corresponding to the first resource block to the first time-domain resource density.
[0127] In one possible implementation, the interference measurement configuration information is also used to indicate the index of the first subcarrier.
[0128] In one possible implementation, interference measurement configuration information is used to indicate at least one time-frequency resource density, wherein the first time-frequency resource density is used to indicate the number of resource units in a first resource combination uniformly distributed on each of N second time-domain symbols, the N second time-domain symbols being uniformly distributed in a first resource block, and the first time-frequency resource density being included in at least one time-frequency resource density.
[0129] In one possible implementation, the interference measurement configuration information is further used to indicate the index of each subcarrier corresponding to the first resource combination, or the interference measurement configuration information is further used to indicate a third starting position; wherein the third starting position is the starting position of multiple resource elements in the first resource combination on a second time domain symbol, the value corresponding to the third starting position is less than or equal to a third interval value, and the third interval value is the ratio of the number of subcarriers corresponding to the first resource block to the number of resource elements in the first resource combination on a second time domain symbol.
[0130] In one possible implementation, the interference measurement configuration information is further used to indicate the index of N second time-domain symbols; or, the interference measurement configuration information is further used to indicate a fourth starting position; wherein the fourth starting position is the starting position of N second time-domain symbols, the value corresponding to the fourth starting position is less than or equal to the fourth interval value, and the fourth interval value is the ratio of the number of time-domain symbols corresponding to the first resource block to N.
[0131] In one possible implementation, the interference measurement configuration information includes at least one of the following: information on resource patterns, table information, or formula information for indicating at least one combination of resources.
[0132] A seventh aspect of this application provides a communication device, comprising: a transceiver unit and a processing unit; wherein,
[0133] The transceiver unit is used to send interference measurement configuration information to the second communication device; wherein the interference measurement configuration information is used to indicate that the first resource combination is related to the resource combination of the reference signal, the first resource combination is used by the second communication device to determine the interference measurement information, and the interference measurement information is used for interference cancellation.
[0134] The processing unit can be used to determine the interference measurement configuration information.
[0135] In one possible implementation, interference measurement configuration information is used to indicate sparsity, which in turn indicates the degree of sparsity of the first resource combination relative to the resource combination of the reference signal.
[0136] In one possible implementation, the transceiver unit is further configured to receive interference measurement information from the second communication device, the interference measurement information being obtained based on interference measurement performed by the second communication device based on the first resource combination.
[0137] In one possible implementation, the transceiver unit is further configured to receive sensing measurement information from the second communication device, the sensing measurement information including first interference information;
[0138] The processing unit is used to eliminate interference in the sensed measurement information based on the interference measurement information.
[0139] In one possible implementation, the processing unit is configured to estimate first interference information based on interference measurement information and to eliminate the first interference information based on the estimation result of the first interference information.
[0140] In one possible implementation, the transceiver unit is further configured to send first configuration information of a reference signal to a third communication device, the first configuration information of the reference signal being used by the third communication device to perform interference measurement and / or interference cancellation.
[0141] In one possible implementation, the transceiver unit is further configured to receive a first response from a third communication device; and determine second configuration information, based on the first response, whether to transmit a reference signal, wherein the first response is determined by interference measurement performed by the third communication device based on the first configuration information.
[0142] An eighth aspect of this application provides a communication device, comprising: a transceiver unit and a processing unit; wherein,
[0143] The transceiver unit is configured to receive interference measurement configuration information from the first communication device; wherein the interference measurement configuration information is used to indicate the relationship between the first resource combination and the resource combination of the reference signal.
[0144] The processing unit is used to determine interference measurement information based on the first resource combination, and the interference measurement information is used for interference cancellation.
[0145] In one possible implementation, interference measurement configuration information is used to indicate sparsity, which in turn indicates the degree of sparsity of the first resource combination relative to the resource combination of the reference signal.
[0146] In one possible implementation, the reference signal includes a positioning reference signal, a detection reference signal, a sensing reference signal, a channel state information reference signal, a synchronization signal, or a demodulation reference signal.
[0147] In one possible implementation, the processing unit is further configured to estimate first interference information in the perceived measurement information based on interference measurement information; and to eliminate the first interference information in the perceived measurement information based on the estimation result of the first interference information.
[0148] In one possible implementation, the transceiver unit is further configured to send interference measurement information and sensing measurement information to the first communication device. The sensing measurement information includes first interference information, and the interference measurement information is used by the first communication device to cancel interference in the first interference information in the sensing measurement information.
[0149] In one possible implementation, the interference measurement information includes at least one of the following: channel impulse response, range-angle velocity spectrum, power delay spectrum, or multipath information.
[0150] A ninth aspect of this application provides a communication device including a processor. The processor is configured to call and run a computer program stored in a memory, causing the processor to implement as described in the first aspect or any one of the first aspects, or to implement as described in the second aspect or any one of the second aspects.
[0151] Optionally, the communication device also includes a transceiver; the processor is also used to control the transceiver to send and receive signals.
[0152] Optionally, the communication device includes a memory in which a computer program is stored.
[0153] The communication device described in the ninth aspect above can be a device or a chip (system) within a device.
[0154] The tenth aspect of this application provides a communication device including a processor. The processor is configured to call and run a computer program stored in a memory, causing the processor to implement as described in the third aspect or any one of the third aspects, or to implement as described in the fourth aspect or any one of the fourth aspects.
[0155] Optionally, the communication device also includes a transceiver; the processor is also used to control the transceiver to send and receive signals.
[0156] Optionally, the communication device includes a memory in which a computer program is stored.
[0157] The communication device described in the tenth aspect above can be a device or a chip (system) in a device.
[0158] The eleventh aspect of this application provides a communication device, which can be a first communication device or a module or unit (e.g., a chip, a chip system, or a circuit) within the first communication device that performs one-to-one the methods / operations / steps / actions described in the first aspect or any implementation thereof. Alternatively, the communication device can be a second communication device or a module or unit (e.g., a chip, a chip system, or a circuit) within the second communication device that performs one-to-one the methods / operations / steps / actions described in the second aspect or any implementation thereof.
[0159] The twelfth aspect of this application provides a communication device, which can be a first communication device or a module or unit (e.g., a chip, a chip system, or a circuit) within the first communication device that performs one-to-one the methods / operations / steps / actions described in the third aspect or any implementation thereof. The communication device can also be a second communication device or a module or unit (e.g., a chip, a chip system, or a circuit) within the second communication device that performs one-to-one the methods / operations / steps / actions described in the fourth aspect or any implementation thereof.
[0160] The thirteenth aspect of this application provides a computer-readable storage medium including computer instructions that, when executed on a computer, cause the computer to perform as described in the first aspect or any implementation thereof, or cause the computer to perform as described in the second aspect or any implementation thereof.
[0161] The fourteenth aspect of this application provides a computer-readable storage medium including computer instructions that, when executed on a computer, cause the computer to perform as described in the third aspect or any implementation thereof, or cause the computer to perform as described in the fourth aspect or any implementation thereof.
[0162] The fifteenth aspect of this application provides a computer program product including instructions that, when run on a computer, cause the computer to perform as described in the first aspect or any implementation thereof, or cause the computer to perform as described in the second aspect or any implementation thereof.
[0163] The sixteenth aspect of this application provides a computer program product including instructions that, when run on a computer, cause the computer to perform as described in the third aspect or any implementation thereof, or cause the computer to perform as described in the fourth aspect or any implementation thereof.
[0164] The seventeenth aspect of this application provides a chip device, including a processor, configured to invoke a program stored in a memory, such that the processor executes the first aspect or any implementation thereof, or executes the second aspect or any implementation thereof.
[0165] Optionally, the memory may be located inside or outside the chip device.
[0166] The eighteenth aspect of this application provides a chip device, including a processor for calling a program stored in a memory to cause the processor to execute the third aspect or any implementation thereof, or to cause the processor to execute the fourth aspect or any implementation thereof.
[0167] Optionally, the memory may be located inside or outside the chip device.
[0168] The nineteenth aspect of this application provides a communication system, which includes a first communication device and a second communication device. The first communication device is used to execute the first aspect or any one of the implementations of the first aspect, and the second communication device is used to execute the second aspect or any one of the implementations of the second aspect.
[0169] The twentieth aspect of this application provides a communication system, which includes a first communication device and a second communication device. The first communication device is used to execute the third aspect or any one of the third aspects described above, and the second communication device is used to execute the fourth aspect or any one of the fourth aspects described above.
[0170] The technical effects of the second, fifth, or sixth aspects, or any possible implementation of the second, fifth, or sixth aspects, as well as the ninth, eleventh, thirteenth, fifteenth, or seventeenth aspects, can be found in the first aspect or the technical effects of different possible implementations of the first aspect, and will not be repeated here.
[0171] The technical effects of the fourth, seventh, or eighth aspects, or any possible implementation of the fourth, seventh, or eighth aspects, as well as the tenth, twelfth, fourteenth, sixteenth, or eighteenth aspects, can be found in the third aspect or the technical effects of different possible implementations of the third aspect, and will not be repeated here. Attached Figure Description
[0172] Figure 1A is a schematic diagram of an example of a perception scenario provided in an embodiment of this application;
[0173] Figure 1B is another example schematic diagram of the perception scenario provided in the embodiments of this application;
[0174] Figures 2A and 2B are example diagrams of two resource patterns for interference measurement provided in the embodiments of this application;
[0175] Figure 3 is a schematic diagram of an embodiment of the communication method provided in this application;
[0176] Figures 4A to 4H are example diagrams of various resource patterns for interference measurement provided in the embodiments of this application;
[0177] Figures 5A and 5B are schematic diagrams of configuration information for interference measurement provided in the embodiments of this application;
[0178] Figure 6 is a schematic diagram of another embodiment of the communication method provided in this application;
[0179] Figure 7 is a schematic diagram of another embodiment of the communication method provided in this application;
[0180] Figure 8 is a schematic diagram of another embodiment of the communication method provided in this application;
[0181] Figures 9A to 9D are example diagrams of various resource patterns for interference measurement provided in the embodiments of this application;
[0182] Figures 10A to 13 are schematic diagrams of multiple embodiments of the communication method provided in this application;
[0183] Figures 14 to 18 are schematic diagrams of the communication device provided in the embodiments of this application. Detailed Implementation
[0184] The embodiments of this application are described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. As those skilled in the art will understand, with the development of technology and the emergence of new scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.
[0185] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0186] This application provides a communication method to improve interference measurement accuracy, thereby improving sensing quality. This application also provides corresponding apparatus, computer-readable storage media, and computer program products, etc., which will be described in detail below.
[0187] The technical solutions of this application can be applied to various communication systems, such as: satellite communication, 5th generation (5G) systems or new radio (NR), long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, universal mobile telecommunication systems (UMTS), vehicle to everything (V2X) communication systems, and future communication networks or systems after 5G networks, etc.
[0188] In addition to having stronger communication capabilities, the aforementioned communication system can also have sensing capabilities. It can be a communication system with integrated sensing and communication (ISAC). An integrated sensing and communication system means that the communication system can communicate through communication signals (which can also be described as communication channels) and perform sensing and measurement through sensing signals (which can also be described as sensing channels).
[0189] In this application, "perception" refers to using the transmission, reflection, and scattering of radio waves (radio frequency signals) to sense the surrounding environment and detect targets, or using non-radio frequency signals to detect targets; wherein, non-radio frequency signals can be optical sensing signals emitted by lidar or acoustic signals emitted by sonar, etc. For example, in vehicle-to-everything (V2X) systems, sensing signals are used to sense other vehicles or objects around vehicles; in imaging systems, sensing signals are used to image target points (tangible objects such as buildings and vehicles) in the environment. Of course, the communication system of this application can also be an industrial automation system or other communication systems that require sensing.
[0190] The communication system described in this application can be a communication system based on orthogonal frequency division multiplexing (OFDM) and / or time division multiplexing (TDM), or a communication system or communication and sensing system based on frequency modulated continuous waveform (FMCW).
[0191] For ease of understanding, the technical terms involved in the embodiments of this application are briefly introduced below:
[0192] 1. Sensing Node: A communication device used for sensing, which may include a transmitter (Tx), a receiver (Rx), or a transceiver integrated communication device.
[0193] 2. Transmitter: A communication device that transmits communication signals and / or sensing signals (SS), also known as a transmitting node or transmitting device.
[0194] 3. Receiver: A communication device that receives the echo signal of communication signals and / or sensing signals; it may also be called a receiving node or receiving device.
[0195] 4. Sensing Signal: This refers to radio frequency (RF) or non-RF signals used to sense the environment or target. SS can be a sensing reference signal (sensing RS), a positioning reference signal (PRS), a sounding reference signal (SRS), a channel state information reference signal (CSI-RS), a synchronization signaling block (SSB), or a demodulation reference signal (DMRS), etc. Sensing signals can be transmitted via beamforming.
[0196] 5. Echo signal (ES): refers to the signal after the sensing signal has been transmitted, reflected or scattered. The sensing result can be determined by measuring the echo signal, which can be received by beamforming.
[0197] 6. Beam: A beam is a communication resource. A beam can be wide, narrow, or other types of beams. The technology used to form a beam can be beamforming technology or other techniques. Beamforming technology can specifically be digital beamforming technology, analog beamforming technology, and hybrid digital or analog beamforming technology. Different beams can be considered different resources. The beam used to transmit signals can be called the transmission beam (Tx beam), and the beam used to receive signals can be called the reception beam (Rx beam). The transmission beam refers to the distribution of signal strength in different directions in space after the signal is transmitted through the antenna, and the reception beam refers to the distribution of signal strength in different directions in space of the wireless signal received from the antenna.
[0198] 7. Central node: refers to the communication device that configures sensing parameters for the transmitting end or receiving end of the sensing signal, and / or the communication device that summarizes the sensing results.
[0199] 8. The terms "system" and "network" in the embodiments of this application can be used interchangeably. "Multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, "at least one of A, B, and C" includes A, B, C, AB, AC, BC, or ABC. And, unless otherwise specified, the ordinal numbers such as "first" and "second" mentioned in the embodiments of this application are used to distinguish multiple objects and are not used to limit the order, sequence, priority, or importance of multiple objects.
[0200] 9. In the embodiments of this application, "send" and "receive" indicate the direction of signal transmission. For example, "send information to XX" can be understood as the destination of the information being XX, which may include sending directly via the air interface or sending indirectly via the air interface from other units or modules. "Receive information from YY" can be understood as the source of the information being YY, which may include receiving directly from YY via the air interface or receiving indirectly from YY via the air interface from other units or modules. "Send" can also be understood as the "output" of the chip interface, and "receive" can also be understood as the "input" of the chip interface.
[0201] In other words, sending and receiving can occur between devices, such as between network devices and terminal devices, or within a device, such as between components, modules, chips, software modules, or hardware modules within the device via buses, wiring, or interfaces.
[0202] It is understandable that information may undergo necessary processing, such as encoding and modulation, between the source and destination, but the destination can understand the valid information from the source. Similar statements in this application can be interpreted in a similar way and will not be elaborated further.
[0203] 10. In the embodiments of this application, "instruction" may include direct instruction and indirect instruction, as well as explicit instruction and implicit instruction. The information indicated by a certain piece of information (hereinafter referred to as instruction information) is called the information to be instructed. In the specific implementation process, there are many ways to indicate the information to be instructed, such as, but not limited to, directly indicating the information to be instructed, such as the information to be instructed itself or its index. It can also indirectly indicate the information to be instructed by indicating other information, where there is an association between the other information and the information to be instructed; or it can only indicate a part of the information to be instructed, while the other parts of the information to be instructed are known or pre-agreed upon. For example, the instruction of specific information can be achieved by using a pre-agreed (e.g., protocol predefined) arrangement order of various information, thereby reducing the instruction overhead to a certain extent. This application does not limit the specific method of instruction. It is understood that for the sender of the instruction information, the instruction information can be used to indicate the information to be instructed; for the receiver of the instruction information, the instruction information can be used to determine the information to be instructed.
[0204] In this application, unless otherwise specified, the same or similar parts between the various embodiments can be referred to each other. In the various embodiments of this application, and the various methods / designs / implementations within each embodiment, unless otherwise specified or logically conflicting, the terminology and / or descriptions between different embodiments and between the various methods / designs / implementations within each embodiment are consistent and can be mutually referenced. The technical features in different embodiments and the various methods / designs / implementations within each embodiment can be combined to form new embodiments, methods, or implementations based on their inherent logical relationships. The following descriptions of the embodiments of this application do not constitute a limitation on the scope of protection of this application.
[0205] The sensing method provided in this application can be applied to either a single sensing scenario or a joint sensing scenario. A single sensing scenario refers to a scenario where a single sensing node obtains the required sensing result after sensing. A joint sensing scenario refers to a scenario where multiple sensing nodes sense the same sensing area, and then each sensing node sends its own determined sensing result to a central node, which then fuses the multiple sensing results to reduce sensing uncertainty and improve sensing performance.
[0206] The individual or joint sensing scenarios involved in the embodiments of this application can be single-base sensing scenarios, dual-base sensing scenarios, or hybrid single-base and dual-base sensing scenarios. A dual-base sensing scenario refers to a sensing scenario where the transmitter of the sensing signal and the receiver of the echo signal are not the same communication device. A single-base sensing scenario refers to a sensing scenario where the transmitter of the sensing signal and the receiver of the echo signal belong to the same communication device; a single-base sensing scenario can also be called a self-sensing scenario. A hybrid dual-base and single-base sensing scenario refers to a sensing scenario in which the participating communication devices include both integrated transceiver communication devices and separate transceiver communication devices.
[0207] The dual-base sensing scenario can be understood by referring to Figure 1A. As shown in Figure 1A, this dual-base sensing scenario includes two transmitters, four receivers, and multiple target objects. The two transmitters are transmitter Tx101 and transmitter Tx102; the four receivers are receivers Rx103, receiver Rx104, receiver Rx105, and receiver Rx106. This dual-base sensing scenario also includes a central node 107; the target objects can be various types of buildings or other objects. The central node 107 can configure transmission parameters for one or more transmitters, and it can also configure reception parameters for one or more receivers. The central node 107 can also aggregate the sensing results from multiple receivers. The scenario shown in Figure 1A may also include an interference device, which can interfere with the sensing process of receivers Rx105 and Rx106. The central node 107 can also send interference measurement configuration information to receivers Rx105 or Rx106 to facilitate interference measurement. The central node 107 can also coordinate interference with the interference device or perform interference cancellation on the interference information in the sensing results.
[0208] The transmitter Tx101 transmits a sensing signal SS1, and the echo signal ES1 generated by SS1 after passing through the building is received by the receiver Rx103.
[0209] Transmitter Tx102 transmits SS2, and ES2 generated by SS2 passing through a building is received by receiver Rx103; Transmitter Tx102 transmits SS3, and ES3 generated by SS3 passing through a building is received by receiver Rx104; Transmitter Tx102 transmits SS4, and ES4 generated by SS4 passing through a building is received by receiver Rx105; ES5 generated by SS4 passing through a building is received by receiver Rx106.
[0210] It should be noted that SS2, SS3, and SS4 can be sensing signals emitted from the same transmitting beam. However, sensing signals within the range of this transmitting beam will produce echo signals in different directions when encountering buildings at different locations, such as ES2, ES3, ES4, and ES5. Echo signals in different directions can be received by different receiving terminals. Of course, SS2, SS3, and SS4 can also be sensing signals in different beams of the transmitting terminal Tx102.
[0211] In a dual-base sensing scenario, echo signals generated by sensing signals transmitted from the same transmitter can be received by different receivers. For example, ES2 is received by receiver Rx103, ES3 by receiver Rx104, ES4 by receiver Rx105, and ES5 by receiver Rx106. Echo signals generated by sensing signals transmitted from different transmitters can also be received by the same receiver, such as ES1 and ES2 being received by receiver Rx103. Of course, echo signals generated by sensing signals transmitted from the same transmitter can also be received by the same receiver. This application does not limit the correspondence between transmitters and receivers; it is related to the number of transmitters or receivers within a certain area. In either case, the receiver can determine the sensing result based on its received echo signals. Alternatively, the receiver can transmit relevant data from the received echo signals to other communication devices for them to determine the sensing result.
[0212] The single-base sensing scenario can be understood by referring to Figure 1B. As shown in Figure 1B, this single-base sensing scenario may include a central node 107, sensing nodes 108, and multiple target objects. Sensing node 108 includes a transmitter of sensing signals and a receiver of echo signals. The central node 107 can configure the transmission and reception parameters for sensing node 108. The scenario shown in Figure 1B may also include an interference device, which can interfere with the sensing process of sensing node 108. The central node 107 can also send interference measurement configuration information to sensing node 108 to facilitate interference measurement. The central node 107 can also coordinate interference with the interference device or perform interference cancellation on the interference information in the sensing results.
[0213] It should be noted that the single-base sensing scenario can include multiple sensing nodes, not limited to the one shown in Figure 1B. When there are multiple sensing nodes, the central node 107 can also summarize the sensing results of multiple sensing nodes.
[0214] When sensing node 108 measures targets in the environment, it can emit one or more beams. The sensing signals SS on the one or more beams can detect targets at different locations. The sensing node then receives the corresponding echo signals ES, and can determine the sensing result based on the ES. Of course, sensing node 108 can also send relevant data from the received echo signals to other communication devices, which can then determine the sensing result.
[0215] In the scenarios described in Figures 1A and 1B above, the central node 107 can also be called a sensing function (SF) network element or a sensing management function (SMF) network element, etc.
[0216] In the scenarios described in Figures 1A and 1B above, the receiver, transmitter, and sensing node can all be terminal devices or network devices, and the central node can also be a terminal device or a network device. The receiver, transmitter, sensing node, and central node shown in Figures 1A and 1B are not limited to their specific forms.
[0217] In addition, the hybrid single-base and dual-base sensing scenario refers to a sensing scenario that includes both the sensing process of the transmitter and receiver as shown in Figure 1A, and the sensing node as shown in Figure 1B.
[0218] The terminal equipment and network equipment of this application are described below.
[0219] Terminal equipment: can be a wireless terminal device capable of receiving network device scheduling and instruction information. The wireless terminal device can be a device that provides voice and / or data connectivity to the user, or a handheld device with wireless connectivity, or other processing device connected to a wireless modem.
[0220] Terminal devices can communicate with one or more core networks or the Internet via a radio access network (RAN). Terminal devices can be mobile terminal devices, such as mobile phones (or "cellular" phones), computers, and data cards. For example, they can be portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile devices that exchange voice and / or data with the RAN. Examples include personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), tablets, and computers with wireless transceiver capabilities. Wireless terminal equipment can also be called subscriber unit, subscriber station, mobile station (MS), remote station, access point (AP), remote terminal, access terminal, user terminal, user agent, subscriber station (SS), customer premises equipment (CPE), terminal, user equipment (UE), mobile terminal (MT), etc.
[0221] By way of example and not limitation, in this embodiment, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices or smart wearable devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific application function and require the use of other devices such as smartphones, such as various smart bracelets, smart helmets, and smart jewelry for vital sign monitoring.
[0222] Terminal devices can also be drones, robots, terminals in device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in telemedicine or telehealth services, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, etc.
[0223] Furthermore, terminal devices can also be terminal devices in future communication systems beyond the fifth generation (5G) (such as 5G Advanced communication systems) or in future evolved public land mobile networks (PLMNs). For example, 5G Advanced networks can further expand the form and function of 5G communication terminals; 5G Advanced terminals include, but are not limited to, vehicles, cellular network terminals (integrating satellite terminal functions), drones, and Internet of Things (IoT) devices.
[0224] In this embodiment, the terminal device can also obtain artificial intelligence (AI) services provided by the network device. Optionally, the terminal device can also have AI processing capabilities.
[0225] Network equipment: This can be equipment within a wireless network. For example, network equipment can be a RAN node (or device) that connects terminal devices to the wireless network, and can also be called a base station. Currently, some examples of RAN equipment include: base stations, evolved NodeBs (eNodeBs), gNBs (gNodeBs) in 5G communication systems, transmission reception points (TRPs), evolved Node Bs (eNBs), radio network controllers (RNCs), Node Bs (NBs), home base stations (e.g., home evolved Node Bs, or home Node Bs (HNBs), base band units (BBUs) or wireless fidelity (Wi-Fi) access points (APs), satellites, drones, unmanned spacecraft, communication balloons, and other non-ground equipment. Additionally, in a network architecture, network equipment can include central unit (CU) nodes, distributed unit (DU) nodes, or RAN equipment that includes both CU and DU nodes.
[0226] Optionally, the RAN node can also be a macro base station, micro base station, indoor station, relay node, donor node, or a radio controller in a cloud radio access network (CRAN) scenario. The RAN node can also be a server, wearable device, vehicle, or in-vehicle equipment. For example, the access network equipment in vehicle-to-everything (V2X) technology can be a roadside unit (RSU).
[0227] In another possible scenario, multiple RAN nodes collaborate to assist the terminal in achieving wireless access, with different RAN nodes each implementing some of the base station's functions. For example, RAN nodes can be CUs, DUs, CUs (control plane, CP), CUs (user plane, UP), or radio units (RUs). CUs and DUs can be configured separately or included in the same network element, such as a baseband unit (BBU). RUs can be included in radio equipment or radio units, such as remote radio units (RRUs), active antenna units (AAUs), radio heads (RHs), or remote radio heads (RRHs).
[0228] In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an open access network (open RAN, O-RAN, or ORAN) system, CU can also be called O-CU (open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples. Any of the units among CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software modules and hardware modules.
[0229] Communication between access network devices and terminal devices follows a specific protocol layer structure. This protocol layer may include a control plane protocol layer and a user plane protocol layer. The control plane protocol layer may include at least one of the following: radio resource control (RRC) layer, packet data convergence protocol (PDCP) layer, radio link control (RLC) layer, media access control (MAC) layer, or physical (PHY) layer, etc. The user plane protocol layer may include at least one of the following: service data adaptation protocol (SDAP) layer, PDCP layer, RLC layer, MAC layer, or physical layer, etc.
[0230] The correspondence between network elements and their achievable protocol layer functions in the ORAN system can be found in Table 1 below.
[0231] Table 1
[0232] Network devices can be other devices that provide wireless communication functions for terminal devices. The embodiments of this application do not limit the specific technology or device form used in the network device. For ease of description, the embodiments of this application are not limited.
[0233] Network equipment may also include core network equipment, such as the Mobility Management Entity (MME), Home Subscriber Server (HSS), Serving Gateway (S-GW), Policy and Charging Rules Function (PCRF), and Public Data Network Gateway (PDN gateway or P-GW) in 4th generation (4G) networks; and access and mobility management function (AMF), user plane function (UPF), or session management function (SMF) in 5G networks. Furthermore, this core network equipment may also include other core network equipment in 5G networks and next-generation networks of 5G networks.
[0234] In this embodiment of the application, the network device may also have network nodes with AI capabilities, which can provide AI services to terminal devices or other network devices. For example, it may be an AI node, computing power node, RAN node with AI capabilities, core network element with AI capabilities, etc. on the network side (access network or core network).
[0235] In this embodiment of the application, the network device can also be a network node with sensing capabilities, which can provide sensing services for terminal devices or other network devices. The network node can sense the sensing target by transmitting sensing signals or receiving echo signals.
[0236] The scenarios described in Figures 1A and 1B involve interference measurement in the sensing scenario. Currently, new wireless technologies define a dedicated resource for sensing interference measurement, which is called Channel State Information Interference Measurement (CSI-IM). The transmitting node of the sensing signal does not transmit signals on this resource. Other devices that may interfere with the sensing process, such as the sensing node or the transmitting node of the sensing signal, can transmit signals on this resource. In this way, the receiving node of the sensing signal can obtain the received signal strength by measuring this resource, thereby determining the strength of these interference signals affecting the sensing process.
[0237] The resource patterns for CSI-IM can be understood by referring to Figures 2A and 2B. Figure 2A shows pattern 0, and Figure 2B shows pattern 1. As shown in Figure 2A or Figure 2B, one resource block (RB) includes 14 time-domain symbols and 12 subcarriers. Therefore, this RB includes 14 * 12 = 168 resource elements (REs). Among them, 4 REs are used for interference measurement, and these 4 REs are concentrated in the RB. In Figure 2A, these 4 REs are distributed in the form (f,t) = (2,2) at the positions of the REs formed by the 8th and 9th time-domain symbols, as well as the positions of the REs formed by the 8th and 9th subcarriers. In Figure 2B, these 4 REs are distributed in the form (f,t) = (4,1) at the positions of the REs formed by the 8th to 11th subcarriers.
[0238] The resource patterns shown in Figure 2A or Figure 2B use concentrated distribution of Receivers (REs) for interference measurement, facilitating the measurement of interference within the measurement range of these four REs. If the RE containing the interference is far from the four REs used for interference measurement, the interference cannot be accurately measured. Furthermore, in scenarios involving moving targets, the interference sources change with the movement of the target. The concentrated distribution of REs for interference measurement means that as the moving target moves, the interference generated by the source is no longer within the measurement range of the four concentrated REs shown in Figure 2A or Figure 2B. Therefore, the resource patterns shown in Figure 2A or Figure 2B cannot currently meet the requirements for measuring interference during the sensing process. Moreover, this interference measurement method requires the initial Receivers (RBs) to be an integer multiple of 4, the number of RBs used must also be an integer multiple of 4, and at least 24 RBs are needed to complete the interference measurement, resulting in a high RB usage.
[0239] Based on this, embodiments of this application provide a communication method that can improve interference measurement accuracy, thereby improving sensing quality. The communication method provided by embodiments of this application is described below from the perspective of a first communication device and a second communication device. The first communication device can refer to the device itself, or a component within the device responsible for communication and / or sensing functions (e.g., a processor, circuit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the first communication device. The circuit or chip responsible for communication and / or sensing functions can be a modem chip, also known as a baseband chip, or a system-on-a-chip (SoC) chip containing a modem core, or a system-in-package (SIP) chip. The device can be a network device or a terminal device, and the network device can include access network equipment or core network equipment. The second communication device can refer to the device itself, or a component within the device responsible for communication and / or sensing functions (e.g., a processor, circuit, chip, or chip system), or a logic module or software capable of implementing all or part of the functions of the second communication device. The circuits or chips responsible for communication and / or sensing functions may be modem chips (also known as baseband chips), or system-on-a-chip (SoC) or system-in-package (SoC) containing a modem core. This device can be an access network device or a terminal device.
[0240] As shown in Figure 3, the communication method provided in this application embodiment includes:
[0241] S301. The first communication device sends interference measurement configuration information to the second communication device. Correspondingly, the second communication device receives the interference measurement configuration information.
[0242] The interference measurement configuration information is used to indicate at least one resource combination for interference measurement, wherein multiple resource units in the first resource combination are uniformly distributed in the time domain direction and / or frequency domain direction of the first resource block, and the first resource combination is included in at least one resource combination.
[0243] In this application, interference measurement configuration information refers to configuration information used for interference measurement. This configuration information may include one or more types of information, and different information may indicate different functions, such as information indicating the REs used for interference measurement, information indicating the RBs used for interference measurement, or information indicating the timing of interference measurement, etc. An RE is typically the smallest unit of resources, representing a time-domain symbol, such as an orthogonal frequency division multiplexing (OFDM) symbol, or a subcarrier in the frequency domain. The number of REs included in an RB is related to the number of time-domain symbols and the number of subcarriers. For example, the number of REs in an RB can be the product of the number of time-domain symbols and the number of subcarriers. For instance, if an RB includes 7 time-domain symbols and 12 subcarriers, then an RB includes 7 * 12 = 84 REs; if an RB includes 14 time-domain symbols and 12 subcarriers, then an RB includes 14 * 12 = 168 REs. Of course, the structure of an RB can also have other variations, which this application does not limit.
[0244] In this application, at least one resource combination includes a first resource combination, which can be used to indicate a resource pattern for interference measurement. The first resource combination includes a plurality of resource elements, which are uniformly distributed in the time domain and / or frequency domain directions of a first resource block. The first resource block can be any resource block used for interference measurement.
[0245] In this application, if there are multiple resource combinations, the multiple resource units in other resource combinations can be uniformly distributed in the time domain and / or frequency domain of the first resource block, or they can be non-uniformly distributed. Even if the multiple resource units in each resource combination are uniformly distributed in the time domain and / or frequency domain of the first resource block, the total number of resource units corresponding to the multiple resource combinations can still be non-uniformly distributed on the first resource block. That is, a non-uniformly distributed resource pattern for interference measurement can be obtained through uniformly distributed resource combinations.
[0246] In this application, the time-domain direction refers to the direction of multiple time-domain symbols corresponding to any subcarrier of the first resource block; the frequency-domain direction refers to the direction of multiple subcarriers corresponding to any time-domain symbol of the first resource block. Uniform distribution means that the multiple time-domain symbols corresponding to a certain subcarrier are evenly distributed, or that the multiple subcarriers corresponding to a certain time-domain symbol are evenly distributed.
[0247] S302. The second communication device sends an interference measurement report to the first communication device. Correspondingly, the first communication device receives an interference measurement report from the second communication device.
[0248] The interference measurement report is obtained by measuring interference based on at least one combination of resources, and is used for interference coordination.
[0249] In this application, the interference measurement report may include multiple pieces of information obtained through interference measurement, such as: channel state information reference signal received power (CSI-RSRP), channel state information received signal strength indication (CSI-RSSI), channel state information signal to interference plus noise ratio (CSI-SINR), sensing reference signal reference signal received power (sensing RS-RSRP), and cross link interference received signal strength indication (CLI-RSSI), etc.
[0250] In this application, interference coordination refers to the first communication device coordinating with other interference sources that interfere with the sensing process of the second communication device to adjust at least one of the following: transmission power, signal transmission time, carrier frequency, or beam angle, or other operations that may reduce interference.
[0251] In the communication method provided in this application embodiment, because multiple resource units in the first resource combination are uniformly distributed in the time domain and / or frequency domain of the first resource block, the second communication device can measure interference from multiple positions or angles during interference measurement, thus improving the accuracy of interference measurement. Especially for sensing scenarios involving moving targets, where interference sources change with the movement of the moving target, the uniform distribution of multiple resource units for interference measurement is more conducive to flexibly measuring interference from different sources as the moving target moves, thereby improving the accuracy of interference measurement and enhancing the sensing quality.
[0252] Optionally, the above-mentioned S302 includes S303 before S302 and S304 after S302.
[0253] S303. The second communication device performs interference measurement based on the interference measurement configuration information and obtains an interference measurement report.
[0254] S304. The first communication device performs interference coordination based on the interference measurement report.
[0255] The interference coordination process may involve the first communication device sending a first instruction message to the third communication device; wherein the first instruction message is used to instruct the third communication device to perform interference adjustment.
[0256] In this application, the third communication device can be an interference source that interferes with the sensing process of the second communication device, and can be an access network device or a terminal device.
[0257] In this application, the REs used for interference measurement are uniformly distributed in the RB. There are several different ways to achieve uniform distribution, which are described below:
[0258] 1. Uniformly distributed in the frequency domain;
[0259] When uniformly distributed in the frequency domain, interference measurement configuration information is used to indicate at least one frequency domain resource density.
[0260] In this application, a frequency domain resource density can correspond to a resource combination, or in other words, at least one frequency domain resource density can correspond one-to-one with at least one resource combination.
[0261] Wherein, at least one frequency domain resource density includes a first frequency domain resource density, which is used to indicate the number of resource units in a first resource combination that is uniformly distributed in the frequency domain direction corresponding to the first time domain symbol; wherein, the first time domain symbol is any time domain symbol in the first resource block, and the first frequency domain resource density is included in at least one frequency domain resource density.
[0262] In this application, the value of frequency domain resource density is related to the number of subcarriers in the resource block. Taking a resource block containing 12 subcarriers as an example, the value of frequency domain resource density can be 1, 2, 3, 4, 6 or 12. If F-Density is used to represent frequency domain resource density, then F-Density={1,2,3,4,6,12}.
[0263] The first frequency domain resource density can be any value in F-Density. Taking a first frequency domain resource density of 3 as an example, it means that three RE401s for interference measurement are evenly distributed in the frequency domain direction corresponding to the first time domain symbol. The resource pattern corresponding to this first resource combination can be understood by referring to Figure 4A. In Figure 4A, time domain symbol 3 is used as an example for illustration. In fact, the first time domain symbol can be any time domain symbol from time domain symbol 0 to time domain symbol 14. In addition, the location of the three REs for interference measurement is not limited to the location of RE401, but can also be the location of three RE402s, three RE403s, or three RE404s.
[0264] In addition, the aforementioned interference measurement configuration information is also used to indicate a first starting position, which is the starting position of multiple resource elements in the first resource combination on the first time domain symbol. The value corresponding to the first starting position is less than or equal to a first interval value, which is the ratio of the number of subcarriers corresponding to the first resource block to the first frequency domain resource density.
[0265] In this application, the unit of the first interval value is the sub-carrier space (SCS). The first interval value = 3, which means an interval of 3 subcarriers. The first interval value can also be understood as 3 subcarrier spaces, that is, it can be expressed as 3*SCS.
[0266] In this application, the first starting position can be the starting position of multiple resource elements on multiple subcarriers corresponding to the first time domain symbol, such as: multiple resource elements are evenly distributed starting from the first subcarrier, or multiple resource elements are evenly distributed starting from the second subcarrier, etc.
[0267] In this application, taking the number of subcarriers corresponding to the first resource block as 12 as an example, if the first frequency domain resource density is equal to 3, then the first interval value = 12 / 3 = 4. Therefore, the first starting position includes 1, 2, 3, or 4, meaning that 3 resource units are evenly distributed starting from the 1st, 2nd, 3rd, or 4th subcarrier. If the first frequency domain resource density is equal to 4, then the first interval value = 12 / 4 = 3. Therefore, the first starting position includes 1, 2, or 3, meaning that 4 resource units are evenly distributed starting from the 1st, 2nd, or 3rd subcarrier.
[0268] If the first starting position is 1, the resource pattern in Figure 4A can be transformed into the resource pattern shown in Figure 4B. As shown in Figure 4B, the three REs used for interference measurement are evenly distributed at the positions of the three RE401s in Figure 4A.
[0269] In addition, in this application, the interference measurement configuration information is also used to indicate the index of the first time-domain symbol. For example, if the interference measurement configuration information is also used to indicate time-domain symbol 3, the resource pattern shown in Figure 4B can be obtained.
[0270] The aforementioned interference measurement configuration information may include multiple pieces of information, such as: a numerical value of frequency domain resource density indicating at least one frequency domain resource density, information indicating a first starting position, or an index of a first time domain symbol, which can indicate different content through different information.
[0271] In the aforementioned scheme with uniform distribution in the frequency domain, at least one frequency domain resource density indicates at least one resource combination, facilitating the second communication device to flexibly determine the resource pattern for interference measurement based on at least one frequency domain resource density. Therefore, indicating at least one resource combination using at least one frequency domain resource density improves the flexibility of resource combination configuration. Furthermore, the interference measurement configuration information is also used to indicate the first starting position or the index of the first time domain symbol, enabling the second communication device to quickly determine the resource pattern for interference measurement and improving the speed of interference measurement.
[0272] 2. Uniformly distributed in the time domain;
[0273] When uniformly distributed in the time domain, the interference measurement configuration information is used to indicate at least one time-domain resource density.
[0274] In this application, a time-domain resource density can correspond to a resource combination, or in other words, at least one time-domain resource density can correspond one-to-one with at least one resource combination.
[0275] In this application, at least one time-domain resource density includes a first time-domain resource density, which is used to indicate the number of resource units in a first resource combination that is uniformly distributed in the time-domain direction corresponding to the first subcarrier; wherein the first subcarrier is any subcarrier in the first resource block, and the first time-domain resource density is included in at least one time-domain resource density.
[0276] In this application, the value of the time-domain resource density is related to the number of time-domain symbols in the resource block. Taking a resource block containing 14 time-domain symbols as an example, the value of the time-domain resource density can be 1, 2, 7 or 14. If T-Density is used to represent the frequency-domain resource density, then T-Density = {1, 2, 7, 14}.
[0277] The first time-domain resource density can be any value in T-Density. Taking a first time-domain resource density of 2 as an example, it means that two REs 411 for interference measurement are uniformly distributed in the time-domain direction corresponding to the first subcarrier. The resource pattern corresponding to this first resource combination can be understood by referring to Figure 4C. In Figure 4C, subcarrier 3 is used as an example for illustration. In fact, the first subcarrier can be any time-domain symbol from subcarrier 0 to time-domain symbol 12. In addition, the location of the two REs for interference measurement is not limited to the location of RE411, but can also be the location of two REs 412, two REs 413, two REs 414, two REs 415, two REs 416, or two REs 417.
[0278] In addition, the aforementioned interference measurement configuration information is also used to indicate a second starting position, which is the starting position of multiple resource elements in the first resource combination on the first subcarrier. The value corresponding to the second starting position is less than or equal to a second interval value, which is the ratio of the number of time-domain symbols corresponding to the first resource block to the first time-domain resource density.
[0279] In this application, the second interval value -1 represents the number of time-domain symbols between two resource units, or the second interval value represents the number of time-domain symbols from any position of a resource unit (e.g., start position, center position, or end position) to the corresponding position of the next adjacent resource unit. The unit of the second interval value can be a symbol.
[0280] In this application, the second starting position can be the starting position of multiple resource units on multiple time-domain symbols corresponding to the first subcarrier, such as: multiple resource units are evenly distributed starting from the first time-domain symbol, or multiple resource units are evenly distributed starting from the second time-domain symbol, etc.
[0281] In this application, taking the number of time-domain symbols corresponding to the first resource block as an example, if the first time-domain resource density is equal to 2, then the second interval value = 14 / 2 = 7. Therefore, the second starting position includes 1, 2, 3, 4, 5, 6, or 7, meaning that two resource units are evenly distributed starting from any one of the first to the seventh time-domain symbols. If the first time-domain resource density is equal to 7, then the second interval value = 14 / 7 = 2. Therefore, the second starting position includes 1 or 2, meaning that seven resource units are evenly distributed starting from either the first or second subcarrier.
[0282] If the second starting position is 4, then the resource pattern in Figure 4C can be transformed into the resource pattern shown in Figure 4D. As shown in Figure 4D, the two REs used for interference measurement are evenly distributed at the positions of the two RE411 in Figure 4C.
[0283] In addition, in this application, the interference measurement configuration information is also used to indicate the index of the first subcarrier. For example, if the interference measurement configuration information is also used to indicate subcarrier 3, the resource pattern shown in Figure 4D can be obtained.
[0284] The aforementioned interference measurement configuration information may include multiple pieces of information, such as: a numerical value of frequency domain resource density indicating at least one time-domain resource density, information indicating a second starting position, or an index of the first subcarrier, which can indicate different content through different information.
[0285] In the aforementioned scheme with uniform distribution in the time domain, at least one time-domain resource density indicates at least one resource combination, facilitating the second communication device to flexibly determine the resource pattern for interference measurement based on at least one time-domain resource density. Therefore, indicating at least one resource combination using at least one time-domain resource density improves the flexibility of resource combination configuration. Furthermore, the interference measurement configuration information is also used to indicate the second starting position or the index of the first subcarrier, enabling the second communication device to quickly determine the resource pattern for interference measurement and improving the speed of interference measurement.
[0286] 3. Uniformly distributed in both the frequency and time domains;
[0287] When uniformly distributed in the frequency and time domains, the interference measurement configuration information is used to indicate at least one time-frequency resource density.
[0288] In this application, a time-frequency resource density can correspond to a resource combination, or in other words, at least one time-frequency resource density can correspond one-to-one with at least one resource combination.
[0289] In this application, at least one time-frequency resource density includes a first time-frequency resource density. The first time-frequency resource density is used to indicate the number of resource units in a first resource combination uniformly distributed on each of N second time-domain symbols, wherein the N second time-domain symbols are uniformly distributed in a first resource block, and the first time-frequency resource density is included in at least one time-frequency resource density.
[0290] In this application, the first time-frequency resource density refers to an array composed of frequency domain resource density and time domain resource density. For example, (3,2) can represent a frequency domain resource density of 3 and a time domain resource density of 2. Of course, this application does not limit the order of frequency domain resource density and time domain resource density in the array, and N is an integer greater than 1. Combining the above-mentioned range of values for frequency domain resource density, the range of values for time-frequency resource density can be TF-Density = T-Density × F-Density = {1,2,7,14} × {1,2,3,4,6,12} or FT-Density = F-Density × T-Density = {1,2,3,4,6,12} × {1,2,7,14}.
[0291] Taking FT-Density = F-Density × T-Density = {1,2,3,4,6,12} × {1,2,7,14} as an example, the range of values for time-frequency resource density can be FT-Density = {(1,1), (1,2), (1,7), (1,14), (2,1), (2,2), (2,7), (2,14), (3,1), (3,2), (3,7), (3,14), (4,1), (4,2), (4,7), (4,14), (6,1), (6,2), (6,7), (6,14), (12,1), (12,2), (12,7), (12,14)}. Here, the first value in each array represents the frequency domain resource density, and the second value represents the time domain resource density. Of course, if expressed in the form of TF-Density, TF-Density = T-Density × F-Density = {1,2,7,14} × {1,2,3,4,6,12}, the range of time-frequency resource density can be TF-Density = {(1,1), (1,2), (1,3), (1,4), (1,6), (1,12), (2,1), (2,2), (2,3), (2,4), (2,6), (2,12), (7,1), (7,2), (7,3), (7,4), (7,6), (7,12), (14,1), (14,2), (14,3), (14,4), (14,6), (14,12)}. Here, the first value in each array represents the time-domain resource density, and the second value represents the frequency-domain resource density.
[0292] In this application, the first time-frequency resource density can represent the number of resource units in the first resource combination uniformly distributed on each second time-domain symbol, and the number of second time-domain symbols. Alternatively, the first time-frequency resource density can also represent the number of resource units in the first resource combination uniformly distributed on each second subcarrier, and the number of second subcarriers. Multiple second time-domain symbols or multiple subcarriers are uniformly distributed in the first resource block. For example, (3,2) can represent two second time-domain symbols, where each second time-domain symbol uniformly distributes three resource units from the first resource combination, with the two second time-domain symbols being uniformly distributed; or it can represent three second subcarriers, where each second subcarrier uniformly distributes two resource units from the first resource combination, with the three second subcarriers being uniformly distributed.
[0293] Taking a first time-frequency resource density of (3,2) as an example, as shown in Figure 4E, multiple resource units used for interference measurement are located on two second time-domain symbols. The two second time-domain symbols shown in Figure 4E are time-domain symbol 3 and time-domain symbol 10. Of course, these two second time-domain symbols can also be other time-domain symbols, such as time-domain symbols 0 and 7, time-domain symbols 1 and 8, time-domain symbols 2 and 9, time-domain symbols 4 and 11, time-domain symbols 5 and 12, time-domain symbols 5 and 13, or time-domain symbols 6 and 14 in Figure 4C. Among them, three resource units used for interference measurement are evenly distributed on each second time-domain symbol. For example, three REs for interference measurement are distributed on subcarriers 0, 4, and 8 corresponding to time-domain symbol 3 in Figure 4E; and three REs for interference measurement are distributed on subcarriers 0, 4, and 8 corresponding to time-domain symbol 10. It should be noted that the three REs for interference measurement distributed on time domain symbols 3 and 10 are not limited to subcarriers 0, 4, and 8. They can also be distributed as shown in Figure 4A, with three REs for interference measurement distributed on subcarriers 1, 5, and 9, and three REs for interference measurement distributed on subcarriers 2, 6, and 10, or three REs for interference measurement distributed on subcarriers 3, 7, and 11.
[0294] In addition, the aforementioned interference measurement configuration information is also used to indicate the index of each subcarrier corresponding to the first resource combination, or the interference measurement configuration information is also used to indicate a third starting position; wherein, the third starting position is the starting position of multiple resource elements in the first resource combination on the second time domain symbol, the value corresponding to the third starting position is less than or equal to the third interval value, and the third interval value is the ratio of the number of subcarriers corresponding to the first resource block to the number of resource elements in the first resource combination on a second time domain symbol.
[0295] In this application, the index of each subcarrier corresponding to the first resource combination refers to the index of the subcarriers that contain resource units in the first resource combination. For example: subcarriers 0, 4, and 8.
[0296] In this application, the third starting position refers to the starting position of multiple resource elements on multiple subcarriers corresponding to the second time domain symbol. The third starting position can be understood by referring to the first starting position. The third interval value can be understood by referring to the first interval value.
[0297] In another possible implementation, the interference measurement configuration information is also used to indicate the index of N second time-domain symbols; or, the interference measurement configuration information is also used to indicate a fourth starting position; wherein the fourth starting position is the starting position of N second time-domain symbols, the value corresponding to the fourth starting position is less than or equal to the fourth interval value, and the fourth interval value is the ratio of the number of time-domain symbols corresponding to the first resource block to N.
[0298] In this application, the indices of the N second time-domain symbols, as shown in Figure 4E, can be time-domain symbols 3 and 10.
[0299] In this application, the fourth starting position can be understood by referring to the second starting position. The fourth interval value can be understood by referring to the second interval value.
[0300] The aforementioned interference measurement configuration information may include multiple pieces of information, such as: a numerical value of frequency domain resource density indicating at least one time-frequency resource density, information indicating a third starting position, or an index of a second subcarrier; an index of a second time-domain symbol or a fourth starting position, which can indicate different content through different information.
[0301] In the aforementioned scheme with uniform distribution in the frequency and time domains, at least one time-frequency resource density indicates at least one resource combination, facilitating the second communication device to flexibly determine the resource pattern for interference measurement based on at least one time-frequency resource density. Therefore, indicating at least one resource combination using at least one time-frequency resource density improves the flexibility of resource combination configuration. Furthermore, the interference measurement configuration information is also used to indicate the index or third starting position of each subcarrier corresponding to the first resource combination, enabling the second communication device to quickly determine the resource pattern for interference measurement and improving the speed of interference measurement. Alternatively, the interference measurement configuration information can also be used to indicate the index or fourth starting position of N second time-domain symbols, facilitating the second communication device to quickly determine the resource pattern for interference measurement and improving the speed of interference measurement.
[0302] Figures 4A to 4E above show the resource pattern used for interference measurement in a resource block. If multiple resource blocks are used for interference measurement, the resource pattern of each resource block can be understood by referring to Figures 4A to 4E above. The REs used for interference measurement are not only uniformly distributed in the time domain and / or frequency domain within a single resource block, but can also maintain a uniform distribution across resource blocks.
[0303] The schemes described in Figures 4A to 4E above are all illustrated using the example of a resource combination in the first resource block. In fact, the first resource block can include multiple resource combinations. Taking two resource combinations as an example, the following explanation will be provided.
[0304] If the interference measurement configuration information includes two frequency domain resource densities, for example, F-Density = 2 and F-Density = 3 respectively, based on the principle of uniform distribution in the frequency domain described above, one possible form of the resource pattern used for interference measurement can be understood by referring to Figure 4F. As shown in Figure 4F, the three REs in the resource combination corresponding to F-Density = 3 are uniformly distributed at the positions corresponding to time domain symbol 3 and subcarriers 0, 4, and 8; the two REs in the resource combination corresponding to F-Density = 2 are uniformly distributed at the positions corresponding to time domain symbol 3 and subcarriers 1 and 7. Of course, the REs corresponding to F-Density = 2 and F-Density = 3 may not be distributed on the REs corresponding to the same time domain symbol. The distribution position of the REs corresponding to each frequency domain resource density can be determined based on the first starting position corresponding to each frequency domain resource density in the interference measurement configuration information, and the index of the first time domain symbol.
[0305] Similarly, if the interference measurement configuration information includes two time-domain resource densities, for example, T-Density = 2 and T-Density = 7 respectively, based on the principle of uniform distribution in the time domain described above, one possible form of the resource pattern used for interference measurement can be understood by referring to Figure 4G. As shown in Figure 4G, the two REs in the resource combination corresponding to T-Density = 2 are uniformly distributed at the positions corresponding to subcarrier 3 and time-domain symbols 3 and 10; the seven REs in the resource combination corresponding to T-Density = 7 are uniformly distributed at the positions corresponding to subcarrier 8 and time-domain symbols 1, 3, 5, 7, 9, 11, and 13. Of course, the REs corresponding to T-Density = 2 and T-Density = 7 can also be distributed on REs corresponding to other subcarriers. The distribution position of the REs corresponding to each time-domain resource density can be determined based on the second starting position corresponding to each time-domain resource density in the interference measurement configuration information, and the index of the first subcarrier.
[0306] Similarly, if the interference measurement configuration information includes two time-frequency resource densities, for example, FT-Density = (3,2) and FT-Density = (2,2), based on the principle of uniform distribution in the frequency and time domains, one possible form of the resource pattern used for interference measurement can be understood by referring to Figure 4H. As shown in Figure 4H, the 6 REs in the resource combination corresponding to FT-Density = (3,2) are uniformly distributed at the positions corresponding to time domain symbols 3 and 10 and subcarriers 0, 4, and 8; the 4 REs in the resource combination corresponding to FT-Density = (2,2) are uniformly distributed at the positions corresponding to time domain symbols 3 and 10 and subcarriers 1 and 7.
[0307] Optionally, the interference measurement configuration information is used to indicate the pattern index of at least one resource combination. For example, if the resource pattern shown in Figure 4B is marked with P2, then including P2 in the interference measurement configuration information can indicate the resource pattern shown in Figure 4B. Similarly, other forms of resource patterns can also use different index labels, as shown in Figures 4D, 4E to 4H, etc., which can all use different index labels.
[0308] In this application, at least one resource combination is fixed using a pattern index, and the second communication device can determine the resource pattern of the corresponding at least one resource combination based on the pattern index. This can reduce the air interface transmission overhead between the first and second communication devices.
[0309] In this application, the interference measurement configuration information may include at least one of the following: information on resource maps, tables, or formulas used to indicate at least one resource combination. This provides multiple possible forms of information for indicating at least one resource combination, increasing the flexibility of the method of indicating at least one resource combination.
[0310] The above describes the use of interference measurement configuration information to indicate at least one resource combination. In this application, interference measurement configuration information can also be used to indicate the RB used for interference measurement, as well as information such as the period of interference measurement. In summary, interference measurement configuration information can include three types of information: Channel State Information - Interference Measurement Resource (CSI-IM-Resource) information, Channel State Information - Interference Measurement Resource Set (CSI-IM-ResourceSet), and Channel State Information - Interference Measurement Resource Configuration (CSI ResourceConfig). CSI-IM-Resource is used to configure the physical location of the interference measurement-related reference signal within a single resource, i.e., for example, the resource pattern shown in Figures 4A to 4H. CSI-IM-ResourceSet is used to define a resource group, combining one or more CSI-IM-Resources together and configuring them in the RRC; CSI ResourceConfig is used to specify the reference signal to be transmitted, the transmission type (periodic, aperiodic, semi-persistent), and it is also used to trigger the transmission of the resource.
[0311] In this embodiment, an extended scheme for CSI-IM-Resource is provided, offering more new types of patterns to choose from. One possible implementation is to fix the combinations of various patterns generated based on various density parameters in Scheme 1 to form new patterns. For example, the various uniformly distributed patterns in Figures 4A to 4H are named pattern2 to patternX. Taking pattern2 as an example, the CSI-IM-Resource format of pattern2 can be written as:
[0312] pattern2 SEQUENCE{
[0313] subcarrierLocation-p2 ENUMERATED{s0,s1,s2,s3}
[0314] symbolLocation-p2 INTEGER(0..13).
[0315] For the formats of other patterns, please refer to the format of pattern2 for understanding. For the format of CSI-IM-ResourceSet, please refer to Figure 5A for understanding. For the format of CSI ResourceConfig, please refer to Figure 5B for understanding.
[0316] The communication method provided in this application embodiment can be applied to the dual-base sensing scenario shown in Figure 1A, and can also be applied to the single-base sensing scenario shown in Figure 1B, which will be described below.
[0317] As shown in Figure 6, in a dual-base sensing scenario, the first communication device is the central node, SF or SMF network element, the second communication device is the receiving node of the sensing signal, and the third communication device is the base station or UE. The transmitting node of the sensing signal may or may not overlap with the central node, SF or SMF network element (Figure 6 illustrates this with overlap as an example). The sensing target is a moving target (UAV). The communication method provided in this application embodiment is introduced using this example.
[0318] As shown in Figure 6, the communication method provided in this application embodiment includes:
[0319] S601. The central node / SF network element / SMF network element sends the first interference measurement configuration information to the receiving node. Correspondingly, the receiving node receives the first interference measurement configuration information.
[0320] In this application, if the central node / SF network element / SMF network element is a core network side network element, then the central node / SF network element / SMF network element can send the first interference measurement configuration information to the receiving node through the access network equipment.
[0321] Furthermore, in this application, prior to S601, the transmitting node of the sensing signal has already transmitted the sensing signal and sensed the sensing target, and the receiving node has also received the echo signal reflected or scattered by the sensing target. The echo signal received by the receiving node contains interference information, which can originate from at least one of the base station or the UE. The base station or UE can also be understood as an interference source for the receiving node.
[0322] The first interference measurement configuration information can be understood by referring to the interference measurement configuration information introduced earlier, and will not be repeated here.
[0323] S602. The central node / SF network element / SMF network element sends the second interference measurement configuration information to the base station or UE. Correspondingly, the base station or UE receives the second interference measurement configuration information.
[0324] S602 can be an optional step. The second interference measurement configuration information can be understood by referring to the interference measurement configuration information introduced earlier, and will not be repeated here.
[0325] S603. The base station or UE transmits sensing signals or communication signals based on at least one combination of resources.
[0326] The sensing signal or communication signal can be a signal that interferes with the sensing process of the transmitting node and the receiving node.
[0327] S604. The receiving node performs interference measurement based on at least one resource combination to obtain an interference measurement report.
[0328] This interference measurement report can be understood by referring to the preceding introduction.
[0329] S605. The receiving node sends an interference measurement report to the central node / SF network element / SMF network element. Correspondingly, the central node / SF network element / SMF network element receives the interference measurement report.
[0330] S606. The central node / SF network element / SMF network element sends a first indication message to the base station or UE based on the interference measurement report. Correspondingly, the base station or UE receives the first indication message.
[0331] The first indication information is used to instruct the base station or UE to perform interference adjustment.
[0332] S607. The base station or UE performs interference adjustment based on the first indication information.
[0333] The adjustment process may involve the base station or UE reducing signal transmission power, adjusting signal transmission time, carrier frequency, or beam angle, or other operations that may reduce interference.
[0334] In the interference measurement scheme for dual-base sensing scenarios provided in this application, the receiving node can obtain more accurate interference measurement results based on uniformly distributed RE measurements in at least one resource combination. This allows the central node / SF network element / SMF network element to perform more precise interference coordination, which is beneficial for improving the sensing quality in subsequent sensing processes. Furthermore, in some scenarios (such as speed measurement), the interference measurement process does not require at least 24 RBs; 1-2 RBs may suffice, significantly reducing the number of RBs used for interference measurement and thus improving resource utilization.
[0335] As shown in Figure 7, taking a single-base sensing scenario, with the first communication device as the central node, SF or SMF network element, the second communication device as the sensing node, the third communication device as the access network device or terminal device, and the sensing target as a moving target (UAV), the communication method provided in this application embodiment will be introduced.
[0336] As shown in Figure 7, the communication method provided in this application embodiment includes:
[0337] S701. The central node / SF network element / SMF network element sends the first interference measurement configuration information to the sensing node. Correspondingly, the sensing node receives the first interference measurement configuration information.
[0338] In this application, if the central node / SF network element / SMF network element is a core network side network element, then the central node / SF network element / SMF network element can send the first interference measurement configuration information to the sensing node through the access network equipment.
[0339] Furthermore, in this application, prior to S701, the sensing node has already transmitted a sensing signal to sense the target, and the sensing node has also received the echo signal reflected or scattered by the target. The echo signal received by the sensing node contains interference information, which can originate from at least one of the base station or the UE. The base station or UE can also be understood as an interference source for the sensing node.
[0340] The first interference measurement configuration information can be understood by referring to the interference measurement configuration information introduced earlier, and will not be repeated here.
[0341] S702. The central node / SF network element / SMF network element sends the second interference measurement configuration information to the base station or UE. Correspondingly, the base station or UE receives the second interference measurement configuration information.
[0342] S702 can be an optional step. The second interference measurement configuration information can be understood by referring to the interference measurement configuration information introduced earlier, and will not be repeated here.
[0343] S703. The base station or UE transmits sensing signals or communication signals based on at least one combination of resources.
[0344] The sensing signal or communication signal can be a signal that interferes with the sensing process of the sensing node.
[0345] S704. The sensing node performs interference measurement based on at least one resource combination to obtain an interference measurement report.
[0346] This interference measurement report can be understood by referring to the preceding introduction.
[0347] S705. The sensing node sends an interference measurement report to the central node / SF network element / SMF network element. Correspondingly, the central node / SF network element / SMF network element receives the interference measurement report.
[0348] S706. The central node / SF network element / SMF network element sends a first indication message to the base station or UE based on the interference measurement report. Correspondingly, the base station or UE receives the first indication message.
[0349] The first indication information is used to instruct the base station or UE to perform interference adjustment.
[0350] S707. The base station or UE performs interference adjustment based on the first indication information.
[0351] The adjustment process may involve the base station or UE reducing signal transmission power, adjusting at least one of the following: signal transmission time, carrier frequency, beam angle, or other operations that may reduce interference.
[0352] In the interference measurement scheme for single-base sensing scenarios provided in this application, sensing nodes can obtain more accurate interference measurement results based on uniformly distributed RE measurements in at least one resource combination. This allows for more precise interference coordination between the central node / SF network element / SMF network element, which is beneficial for improving the sensing quality in subsequent sensing processes. Furthermore, in some scenarios (such as speed measurement), the interference measurement process does not require at least 24 RBs; 1-2 RBs may suffice, significantly reducing the number of RBs used for interference measurement and thus improving resource utilization.
[0353] The above describes interference coordination schemes. The communication process provided in this application is not limited to interference coordination; it can also perform interference cancellation. The following describes a communication scheme for interference cancellation.
[0354] As shown in Figure 8, the communication method provided in this application embodiment includes:
[0355] S801. The first communication device sends interference measurement configuration information to the second communication device. Correspondingly, the second communication device receives the interference measurement configuration information.
[0356] The interference measurement configuration information is used to indicate the relationship between the first resource combination and the resource combination of the reference signal.
[0357] In this application, interference measurement configuration information refers to configuration information used for interference measurement.
[0358] In this application, the first resource combination being related to the resource combination of the reference signal means that the first resource combination can be obtained by relying on the resource combination of the reference signal, such as obtaining the first resource combination by performing sparsification processing on the resource combination of the reference signal.
[0359] In this application, the reference signal may include at least one of a positioning reference signal (PRS), a sounding reference signal (SRS), a sensing reference signal (sensing RS), a channel state information reference signal (CSI-RS), a synchronization signaling block (SSB), or a demodulation reference signal (DMRS). The sensing reference signal is used for sensing.
[0360] S802. The second communication device determines interference measurement information based on the first resource combination, and the interference measurement information is used for interference cancellation.
[0361] The interference cancellation process can be performed by either the second communication device or the first communication device.
[0362] In this application, since the first resource combination used for interference measurement is related to the resource combination of the reference signal, the second communication device can obtain, in addition to channel state information-reference signal received power (CSI-RSRP), channel state information-received signal strength indication (CSI-RSSI), channel state information-signal to interference plus noise ratio (CSI-SINR), sensing reference signal-reference signal received power (sensing RS-RSRP), and cross link interference-received signal strength indication (CLI-RSSI), at least one of the following: channel impulse response (CIR), range angle velocity (RAV) spectrum, power delay profile (PDP), or multipath information, when performing interference measurement.
[0363] In the communication scheme provided in this application embodiment, because the first resource combination used for interference measurement is related to the resource combination of the reference signal, the second communication device can obtain more refined interference measurement information as described above during interference measurement. This interference measurement information can estimate the interference in the sensing process, and thus eliminate the interference in the sensing process, thereby improving the sensing quality. Moreover, using the sparsely processed first resource combination for interference measurement can also reduce resource consumption.
[0364] In this application, interference measurement configuration information is used to indicate sparsity, which in turn indicates the degree of sparsity of the first resource combination relative to the resource combination of the reference signal.
[0365] In this application, the sparsity value can be any value within (0,1], for example, the sparsity value can be 1 / 2. nWhere n is a natural number, such as: sparsity = {1, 1 / 2, 1 / 4, 1 / 8, ...}. The sparsity of the first resource combination relative to the resource combination of the reference signal refers to how the first resource is determined according to the sparsity and the resource combination of the reference signal. For example, if the sparsity = 1 / 2, it means that half of the resources in the resource combination of the reference signal are used for interference measurement.
[0366] In this application, the sparsity of the first resource combination relative to the resource combination of the reference signal is indicated by the sparsity, which can reduce the indication overhead of the first resource combination.
[0367] The relationship between the first resource combination and the resource combination of the reference signal can be understood through several diagrams.
[0368] Figure 9A shows the resource map of PRS / SRS and the resource map of the first resource combination obtained after coefficient processing with a sparsity of 1 / 2. As can be seen from Figure 9A, the resource map of the first resource combination can be obtained by performing a uniform sparsity processing of 1 / 2 on the resource map of PRS / SRS.
[0369] Figure 9B shows the resource map of CSI-RS and the resource map of the first resource combination obtained after coefficient processing with a sparsity of 1 / 4. As can be seen from Figure 9B, the resource map of the first resource combination can be obtained by performing uniform sparsity processing of 1 / 4 on the resource map of CSI-RS and selecting one RE from every 4 REs for interference measurement.
[0370] Figure 9C shows the resource pattern of a single DMRS symbol and the resource pattern of the first resource combination obtained after coefficient processing with a sparsity of 1 / 2. As can be seen from Figure 9C, the resource pattern of the first resource combination can be obtained by performing a uniform sparsity processing of 1 / 2 on the resource pattern of the single DMRS symbol.
[0371] Figure 9D shows the resource map of the DMRS double symbol and the resource map of the first resource combination obtained after coefficient processing with a sparsity of 1 / 2. As can be seen from Figure 9D, the resource map of the first resource combination can be obtained by performing a uniform sparsity processing of 1 / 2 on the DMRS double symbol resource map.
[0372] In the interference cancellation communication scheme provided in this application embodiment, the interference cancellation process can be performed by the first communication device or the second communication device. In addition, the third communication device can also perform interference measurement to determine whether the first communication device needs to continuously send configuration information to the third communication device. These will be described in detail below.
[0373] 1. The first communication device performs interference cancellation;
[0374] As shown in Figure 10A, in the communication scheme for interference cancellation provided in this application embodiment, taking a dual-base sensing scenario, the first communication device is the central node, SF or SMF network element, the second communication device is the receiving node of the sensing signal, and the third communication device is the base station or UE. The transmitting node of the sensing signal may or may not overlap with the central node, SF or SMF network element (Figure 10A illustrates this with overlap as an example). The sensing target is a moving target (UAV) as an example to introduce the communication method provided in this application embodiment.
[0375] S1001. The central node / SF network element / SMF network element sends interference measurement configuration information to the receiving node. Correspondingly, the receiving node receives the interference measurement configuration information.
[0376] In this application, if the central node / SF network element / SMF network element is a core network side network element, then the central node / SF network element / SMF network element can send the first interference measurement configuration information to the receiving node through the access network equipment.
[0377] Furthermore, in this application, prior to S1001, the transmitting node of the sensing signal has already transmitted the sensing signal and sensed the sensing target. The receiving node has also received the echo signal reflected or scattered by the sensing target and determined the sensing measurement information through the echo signal. The sensing measurement information determined by the receiving node includes first interference information, which may come from at least one of a base station or a UE. The base station or UE can also be understood as an interference source for the receiving node.
[0378] The interference measurement configuration information can be understood by referring to the interference measurement configuration information described in the embodiment corresponding to Figure 8, and will not be repeated here.
[0379] S1002. The receiving node performs interference measurement based on the interference measurement configuration information to determine the interference measurement information.
[0380] S1003. The receiving node sends interference measurement information and sensing measurement information to the central node / SF network element / SMF network element. Correspondingly, the central node / SF network element / SMF network element receives the interference measurement information and sensing measurement information.
[0381] In this application, interference measurement information can be sent through an interference measurement report, and sensing measurement information can be carried in the interference measurement report or can be independent of the interference measurement report.
[0382] S1004. The central node / SF network element / SMF network element performs interference cancellation on the sensing measurement information based on the interference measurement information.
[0383] S1004 may include S10041 and S10042.
[0384] S10041. The central node / SF network element / SMF network element estimates the first interference information based on the interference measurement information.
[0385] S10042. The central node / SF network element / SMF network element eliminates the first interference information based on the estimation result of the first interference information.
[0386] In addition, base stations or UEs may interfere with the sensing process of receiving nodes and transmitting nodes, and this sensing process may also interfere with the sensing or communication process of base stations or UEs. Therefore, base stations or UEs can also perform interference measurement or interference cancellation. The embodiments of this application may also include the following steps:
[0387] S1005. The central node / SF network element / SMF network element sends the first configuration information of the reference signal to the base station or UE. Correspondingly, the base station or UE receives the first configuration information of the reference signal.
[0388] In this application, the first configuration information of the reference signal is used by the base station or UE to perform interference measurement and / or interference cancellation.
[0389] In this application, the first configuration information may include a resource combination of reference signals, and of course, it may also be used to indicate sparsity. In this way, the third communication device can use the sparsity and the resource combination of reference signals to determine the first resource combination for interference measurement.
[0390] S1006. The base station or UE performs interference measurement based on the first configuration information to determine the first response.
[0391] The first response can indicate the level of interference the sensing process causes to the base station or UE, such as: minor interference or major interference.
[0392] S1007. The base station or UE sends a first response to the central node / SF network element / SMF network element. Correspondingly, the central node / SF network element / SMF network element receives the first response.
[0393] S1008. The central node / SF network element / SMF network element determines whether to send the second configuration information of the reference signal to the base station or UE based on the first response.
[0394] In this application, the second configuration information may be the same as or different from the first configuration information.
[0395] It should be noted that if the first response determines that it is necessary to send second configuration information to the base station or UE, then the above-described processes S1005 to S1008 are repeated, except that the configuration information is replaced by the second configuration information instead of the first configuration information. If the first response determines that it is not necessary to send second configuration information to the base station or UE, then the process ends.
[0396] If the first response indicates that the interference is small, the central node / SF network element / SMF network element does not need to send the second configuration information to the base station or UE, which can reduce communication overhead. If the first response indicates that the interference is large, the central node / SF network element / SMF network element can send the second configuration information to the base station or UE. In this way, the base station or UE can use the second configuration information to continue to perform interference cancellation, thereby reducing the interference of the sensing process to the base station or UE.
[0397] In the communication scheme provided in this application embodiment, the central node / SF network element / SMF network element can perform interference cancellation on the sensing measurement information based on the interference measurement information, thereby improving the sensing quality. Furthermore, by sending first configuration information or second configuration information to the base station or UE, the base station or UE can also perform interference cancellation, reducing interference to other surrounding communication devices during the sensing process.
[0398] It should be noted that S1005 to S1008 can also be executed independently, that is, the process of S1005 to S1008 can be completed without executing S1001 to S1004. The communication process in this case can be understood with reference to Figure 10B. As shown in Figure 10B, the communication method includes:
[0399] S1011. The central node / SF network element / SMF network element sends the first configuration information of the reference signal to the base station or UE. Correspondingly, the base station or UE receives the first configuration information of the reference signal.
[0400] In this application, the first configuration information of the reference signal is used by the base station or UE to perform interference measurement and / or interference cancellation.
[0401] In this application, the first configuration information may include a resource combination of reference signals, and of course, it may also be used to indicate sparsity. In this way, the third communication device can use the sparsity and the resource combination of reference signals to determine the first resource combination for interference measurement.
[0402] S1012. The base station or UE performs interference measurement based on the first configuration information to determine the first response.
[0403] The first response can indicate the level of interference the sensing process causes to the base station or UE, such as: minor interference or major interference.
[0404] S1013. The base station or UE sends a first response to the central node / SF network element / SMF network element. Correspondingly, the central node / SF network element / SMF network element receives the first response.
[0405] S1014. The central node / SF network element / SMF network element determines whether to send the second configuration information of the reference signal to the base station or UE based on the first response.
[0406] In this application, the second configuration information may be the same as or different from the first configuration information.
[0407] It should be noted that if the first response determines that it is necessary to send second configuration information to the base station or UE, then the above processes S1011 to S1014 are repeated, except that the configuration information is replaced by the second configuration information instead of the first configuration information. If the first response determines that it is not necessary to send second configuration information to the base station or UE, then the process ends.
[0408] If the first response indicates that the interference is small, the central node / SF network element / SMF network element does not need to send the second configuration information to the base station or UE, which can reduce communication overhead. If the first response indicates that the interference is large, the central node / SF network element / SMF network element can send the second configuration information to the base station or UE. In this way, the base station or UE can use the second configuration information to continue to perform interference cancellation, thereby reducing the interference of the sensing process to the base station or UE.
[0409] In this case, the central node / SF network element / SMF network element can send the first configuration information or the second configuration information to the base station or UE, so that the base station or UE can also perform interference cancellation, which can reduce the interference of the sensing process to other surrounding communication devices.
[0410] 2. The second communication device performs interference cancellation;
[0411] As shown in Figure 11, in the communication scheme for interference cancellation provided in this application embodiment, taking a dual-base sensing scenario, the first communication device is the central node, SF or SMF network element, the second communication device is the receiving node of the sensing signal, and the third communication device is the base station or UE. The transmitting node of the sensing signal may or may not overlap with the central node, SF or SMF network element (Figure 11 illustrates this with overlap as an example). The sensing target is a moving target (UAV) as an example to introduce the communication method provided in this application embodiment.
[0412] S1101. The central node / SF network element / SMF network element sends interference measurement configuration information to the receiving node. Correspondingly, the receiving node receives the interference measurement configuration information.
[0413] In this application, if the central node / SF network element / SMF network element is a core network side network element, then the central node / SF network element / SMF network element can send the first interference measurement configuration information to the receiving node through the access network equipment.
[0414] Furthermore, in this application, prior to S1101, the transmitting node of the sensing signal has already transmitted the sensing signal and sensed the sensing target. The receiving node has also received the echo signal reflected or scattered by the sensing target and determined the sensing measurement information through the echo signal. The sensing measurement information determined by the receiving node includes first interference information, which may come from at least one of a base station or a UE. The base station or UE can also be understood as an interference source for the receiving node.
[0415] The interference measurement configuration information can be understood by referring to the interference measurement configuration information described in the embodiment corresponding to Figure 8, and will not be repeated here.
[0416] S1102. The receiving node performs interference measurement based on the interference measurement configuration information to determine the interference measurement information.
[0417] S1103. The receiving node performs interference cancellation on the sensed measurement information based on the interference measurement information.
[0418] S1103 may include S11031 and S11032.
[0419] S11031. The receiving node estimates the first interference information based on the interference measurement information.
[0420] S11032. The receiving node eliminates the first interference information based on the estimation result of the first interference information.
[0421] In addition, base stations or UEs may interfere with the sensing process of receiving nodes and transmitting nodes, and this sensing process may also interfere with the sensing or communication process of base stations or UEs. Therefore, base stations or UEs can also perform interference measurement or interference cancellation. The embodiments of this application may also include the following steps:
[0422] S1104. The central node / SF network element / SMF network element sends the first configuration information of the reference signal to the base station or UE. Correspondingly, the base station or UE receives the first configuration information of the reference signal.
[0423] In this application, the first configuration information of the reference signal is used by the base station or UE to perform interference measurement and / or interference cancellation.
[0424] In this application, the first configuration information may include a resource combination of reference signals, and of course, it may also be used to indicate sparsity. In this way, the third communication device can use the sparsity and the resource combination of reference signals to determine the first resource combination for interference measurement.
[0425] S1105. The base station or UE performs interference measurement based on the first configuration information to determine the first response.
[0426] The first response can indicate the level of interference the sensing process causes to the base station or UE, such as: minor interference or major interference.
[0427] S1106. The base station or UE sends a first response to the central node / SF network element / SMF network element. Correspondingly, the central node / SF network element / SMF network element receives the first response.
[0428] S1107. The central node / SF network element / SMF network element determines whether to send the second configuration information of the reference signal to the base station or UE based on the first response.
[0429] In this application, the second configuration information may be the same as or different from the first configuration information.
[0430] It should be noted that if the first response determines that it is necessary to send second configuration information to the base station or UE, then the above-described processes S1005 to S1008 are repeated, except that the configuration information is replaced by the second configuration information instead of the first configuration information. If the first response determines that it is not necessary to send second configuration information to the base station or UE, then the process ends.
[0431] If the first response indicates that the interference is small, the central node / SF network element / SMF network element does not need to send the second configuration information to the base station or UE, which can reduce communication overhead. If the first response indicates that the interference is large, the central node / SF network element / SMF network element can send the second configuration information to the base station or UE. In this way, the base station or UE can use the second configuration information to continue to perform interference cancellation, thereby reducing the interference of the sensing process to the base station or UE.
[0432] In the communication scheme provided in this application embodiment, the receiving node can perform interference cancellation on the sensing measurement information based on the interference measurement information, thereby improving the sensing quality. Furthermore, the central node / SF network element / SMF network element can also enable the base station or UE to perform interference cancellation by sending first configuration information or second configuration information to the base station or UE, thus reducing interference to other surrounding communication devices during the sensing process.
[0433] It should be noted that S1104 to S1107 can also be executed independently, that is, the process of S1104 to S1107 can be completed without executing S1101 to S1103. This process can be understood by referring to Figure 10B, and will not be described in detail here.
[0434] Figures 10A and 11 above illustrate the interference cancellation process in a two-base sensing scenario. The interference cancellation process in a single-base sensing scenario is described below with reference to Figure 12.
[0435] As shown in Figure 12, in the communication scheme for interference cancellation provided in this application embodiment, in the single-base sensing scenario where interference cancellation is performed by the first communication device, the first communication device is the central node, SF or SMF network element, the second communication device is the sensing node, the third communication device is the base station or UE, and the sensing target is a moving target (UAV), the communication method provided in this application embodiment will be introduced using this example.
[0436] S1201. The central node / SF network element / SMF network element sends interference measurement configuration information to the sensing node. Correspondingly, the sensing node receives the interference measurement configuration information.
[0437] In this application, if the central node / SF network element / SMF network element is a core network side network element, then the central node / SF network element / SMF network element can send the first interference measurement configuration information to the sensing node through the access network equipment.
[0438] Furthermore, in this application, prior to S1201, the sensing node has already transmitted a sensing signal to sense the target and received the echo signal reflected or scattered by the target. The sensing node then determines the sensing measurement information based on the echo signal. The sensing measurement information determined by the sensing node includes first interference information, which can originate from at least one of a base station or a UE. The base station or UE can also be understood as an interference source for the sensing node.
[0439] The interference measurement configuration information can be understood by referring to the interference measurement configuration information described in the embodiment corresponding to Figure 8, and will not be repeated here.
[0440] S1202. The sensing node performs interference measurement based on the interference measurement configuration information to determine the interference measurement information.
[0441] S1203. The sensing node sends interference measurement information and sensing measurement information to the central node / SF network element / SMF network element. Correspondingly, the central node / SF network element / SMF network element receives the interference measurement information and sensing measurement information.
[0442] In this application, interference measurement information can be sent through an interference measurement report, and sensing measurement information can be carried in the interference measurement report or can be independent of the interference measurement report.
[0443] S1204. The central node / SF network element / SMF network element performs interference cancellation on the sensing measurement information based on the interference measurement information.
[0444] S1204 may include S12041 and S12042.
[0445] S12041. The central node / SF network element / SMF network element estimates the first interference information based on the interference measurement information.
[0446] S12042. The central node / SF network element / SMF network element eliminates the first interference information based on the estimation result of the first interference information.
[0447] In addition, base stations or UEs may interfere with the sensing process of sensing nodes, and this sensing process may also interfere with the sensing or communication process of base stations or UEs. Therefore, base stations or UEs can also perform interference measurement or interference cancellation. The embodiments of this application may also include the following steps:
[0448] S1205. The central node / SF network element / SMF network element sends the first configuration information of the reference signal to the base station or UE. Correspondingly, the base station or UE receives the first configuration information of the reference signal.
[0449] In this application, the first configuration information of the reference signal is used by the base station or UE to perform interference measurement and / or interference cancellation.
[0450] In this application, the first configuration information may include a resource combination of reference signals, and of course, it may also be used to indicate sparsity. In this way, the third communication device can use the sparsity and the resource combination of reference signals to determine the first resource combination for interference measurement.
[0451] S1206. The base station or UE performs interference measurement based on the first configuration information to determine the first response.
[0452] The first response can indicate the level of interference the sensing process causes to the base station or UE, such as: minor interference or major interference.
[0453] S1207. The base station or UE sends a first response to the central node / SF network element / SMF network element. Correspondingly, the central node / SF network element / SMF network element receives the first response.
[0454] S1208. The central node / SF network element / SMF network element determines whether to send the second configuration information of the reference signal to the base station or UE based on the first response.
[0455] In this application, the second configuration information may be the same as or different from the first configuration information.
[0456] It should be noted that if the first response determines that it is necessary to send second configuration information to the base station or UE, then the above-described processes S1205 to S1208 are repeated, except that the configuration information is replaced by the second configuration information instead of the first configuration information. If the first response determines that it is not necessary to send second configuration information to the base station or UE, then the process ends.
[0457] If the first response indicates that the interference is small, the central node / SF network element / SMF network element does not need to send the second configuration information to the base station or UE, which can reduce communication overhead. If the first response indicates that the interference is large, the central node / SF network element / SMF network element can send the second configuration information to the base station or UE. In this way, the base station or UE can use the second configuration information to continue to perform interference cancellation, thereby reducing the interference of the sensing process to the base station or UE.
[0458] In the communication scheme provided in this application embodiment, the central node / SF network element / SMF network element can perform interference cancellation on the sensing measurement information based on the interference measurement information, thereby improving the sensing quality. Furthermore, by sending first configuration information or second configuration information to the base station or UE, the base station or UE can also perform interference cancellation, reducing interference to other surrounding communication devices during the sensing process.
[0459] It should be noted that S1205 to S1208 can also be executed independently, that is, the process of S1205 to S1208 can be completed without executing S1201 to S1204. This process can be understood by referring to Figure 10B, and will not be described in detail here.
[0460] As shown in Figure 13, in the communication scheme for interference cancellation provided in this application embodiment, in a single-base sensing scenario where interference cancellation is performed using a second communication device, the first communication device is a central node, SF or SMF network element, the second communication device is a sensing node, the third communication device is a base station or UE, and the sensing target is a moving target (UAV). The communication method provided in this application embodiment is introduced using this example.
[0461] S1301. The central node / SF network element / SMF network element sends interference measurement configuration information to the sensing node. Correspondingly, the sensing node receives the interference measurement configuration information.
[0462] In this application, if the central node / SF network element / SMF network element is a core network side network element, then the central node / SF network element / SMF network element can send the first interference measurement configuration information to the receiving node through the access network equipment.
[0463] Furthermore, in this application, prior to S1301, the transmitting node of the sensing signal has already transmitted the sensing signal and sensed the sensing target. The sensing node has also received the echo signal reflected or scattered by the sensing target and determined the sensing measurement information through the echo signal. The sensing measurement information determined by the sensing node includes first interference information, which may come from at least one of a base station or a UE. The base station or UE can also be understood as an interference source for the sensing node.
[0464] The interference measurement configuration information can be understood by referring to the interference measurement configuration information described in the embodiment corresponding to Figure 8, and will not be repeated here.
[0465] S1302. The sensing node performs interference measurement based on the interference measurement configuration information to determine the interference measurement information.
[0466] S1303. The sensing node performs interference cancellation on the sensing measurement information based on the interference measurement information.
[0467] The S1303 may include S13031 and S13032.
[0468] S13031. The sensing node estimates the first interference information based on the interference measurement information.
[0469] S13032. The sensing node eliminates the first interference information based on the estimation result of the first interference information.
[0470] In addition, base stations or UEs may interfere with the sensing process of sensing nodes, and this sensing process may also interfere with the sensing or communication process of base stations or UEs. Therefore, base stations or UEs can also perform interference measurement or interference cancellation. The embodiments of this application may also include the following steps:
[0471] S1304. The central node / SF network element / SMF network element sends the first configuration information of the reference signal to the base station or UE. Correspondingly, the base station or UE receives the first configuration information of the reference signal.
[0472] In this application, the first configuration information of the reference signal is used by the base station or UE to perform interference measurement and / or interference cancellation.
[0473] In this application, the first configuration information may include a resource combination of reference signals, and of course, it may also be used to indicate sparsity. In this way, the third communication device can use the sparsity and the resource combination of reference signals to determine the first resource combination for interference measurement.
[0474] S1305. The base station or UE performs interference measurement based on the first configuration information to determine the first response.
[0475] The first response can indicate the level of interference the sensing process causes to the base station or UE, such as: minor interference or major interference.
[0476] S1306. The base station or UE sends a first response to the central node / SF network element / SMF network element. Correspondingly, the central node / SF network element / SMF network element receives the first response.
[0477] S1307. The central node / SF network element / SMF network element determines whether to send the second configuration information of the reference signal to the base station or UE based on the first response.
[0478] In this application, the second configuration information may be the same as or different from the first configuration information.
[0479] It should be noted that if the first response determines that it is necessary to send second configuration information to the base station or UE, then the above-described processes S1005 to S1008 are repeated, except that the configuration information is replaced by the second configuration information instead of the first configuration information. If the first response determines that it is not necessary to send second configuration information to the base station or UE, then the process ends.
[0480] If the first response indicates that the interference is small, the central node / SF network element / SMF network element does not need to send the second configuration information to the base station or UE, which can reduce communication overhead. If the first response indicates that the interference is large, the central node / SF network element / SMF network element can send the second configuration information to the base station or UE. In this way, the base station or UE can use the second configuration information to continue to perform interference cancellation, thereby reducing the interference of the sensing process to the base station or UE.
[0481] In the communication scheme provided in this application embodiment, the sensing node can perform interference cancellation on the sensing measurement information based on the interference measurement information, thereby improving the sensing quality. Furthermore, the central node / SF network element / SMF network element can also enable the base station or UE to perform interference cancellation by sending first configuration information or second configuration information to the base station or UE, thus reducing interference to other surrounding communication devices during the sensing process.
[0482] It should be noted that S1304 to S1307 can also be executed independently, that is, the process of S1304 to S1307 can be completed without executing S1301 to S1303. This process can be understood by referring to Figure 10B, and will not be described in detail here.
[0483] Figures 6 to 7 and Figures 10A to 13 above illustrate several examples of dual-base sensing scenarios and single-base sensing scenarios. In fact, there can be many types of sensing situations. The sensing in different scenarios can be understood by referring to the previous communication process. They will not be described in detail in this application.
[0484] The communication system and communication method in the embodiments of this application have been described above. The communication device provided in the embodiments of this application will be described below.
[0485] Please refer to Figure 14. This application embodiment provides a communication device 1400, which can realize the functions of the first or second communication device in the above method embodiments, and therefore can also achieve the beneficial effects of the above method embodiments. In this application embodiment, the communication device 1400 can be the first or second communication device, or it can be an integrated circuit or component inside the first or second communication device, such as a chip, baseband chip, modem chip, SoC chip (e.g., an SoC chip containing a modem core), SIP chip, communication module, chip system, processor, etc.
[0486] It should be noted that the transceiver unit 1402 may include a transmitting unit and a receiving unit, which are used to perform transmitting and receiving respectively.
[0487] In one possible implementation, when the device 1400 is used to execute the method performed by the first communication device in FIG3 and related embodiments, the device 1400 includes a processing unit 1401 and a transceiver unit 1402; the processing unit 1401 is used to determine interference measurement configuration information; the transceiver unit 1402 is used to send the interference measurement configuration information to the second communication device; wherein the interference measurement configuration information is used to indicate at least one resource combination for interference measurement, wherein a plurality of resource units in the first resource combination are uniformly distributed in the time domain direction and / or frequency domain direction of the first resource block, and the first resource combination is included in at least one resource combination; and receiving an interference measurement report from the second communication device; wherein the interference measurement report is obtained based on interference measurement of at least one resource combination, and the interference measurement report is used for interference coordination.
[0488] In one possible implementation, when the device 1400 is used to execute the method performed by the second communication device in FIG3 and related embodiments, the device 1400 includes a processing unit 1401 and a transceiver unit 1402; the transceiver unit 1402 is used to receive interference measurement configuration information from the first communication device; wherein the interference measurement configuration information is used to indicate at least one resource combination for interference measurement, wherein a plurality of resource elements in the first resource combination are uniformly distributed in the time domain direction and / or frequency domain direction of the first resource block, and the first resource combination is included in at least one resource combination; and to send an interference measurement report to the first communication device; wherein the interference measurement report is obtained based on interference measurement of at least one resource combination, and the interference measurement report is used for interference coordination. The processing unit 1401 is used to perform interference measurement according to the interference measurement configuration information.
[0489] In one possible implementation, when the device 1400 is used to execute the method performed by the first communication device in FIG8 and related embodiments, the device 1400 includes a processing unit 1401 and a transceiver unit 1402; the processing unit 1401 is used to determine interference measurement configuration information; the transceiver unit 1402 is used to send the interference measurement configuration information to the second communication device; wherein, the interference measurement configuration information is used to indicate that a first resource combination is related to a resource combination of a reference signal, the first resource combination is used by the second communication device to determine the interference measurement information, and the interference measurement information is used for interference cancellation.
[0490] In one possible implementation, when the device 1400 is used to execute the method performed by the second communication device in FIG8 and related embodiments, the device 1400 includes a processing unit 1401 and a transceiver unit 1402; the transceiver unit 1402 is used to receive interference measurement configuration information from the first communication device; wherein the interference measurement configuration information is used to indicate that a first resource combination is related to a resource combination of a reference signal. The processing unit 1401 is used to determine interference measurement information based on the first resource combination, and the interference measurement information is used for interference cancellation.
[0491] In one possible design, when the communication device 1400 is a terminal device or a communication module within a terminal, the function of the processing unit 1401 can be implemented by one or more processors. Specifically, the processor may include a modem chip, a SoC chip (such as a SoC chip containing a modem core), or a SIP chip. The function of the transceiver unit 1402 can be implemented by transceiver circuitry.
[0492] In one possible design, when the communication device 1400 is a circuit or chip responsible for communication functions in a terminal device, such as a modem chip, a SoC chip, or a SoC chip or SIP chip containing a modem core, the function of the processing unit 1401 can be implemented by a circuit system in the aforementioned chip that includes one or more processors or processor cores. The function of the transceiver unit 1402 can be implemented by the interface circuitry or data transceiver circuitry on the aforementioned chip.
[0493] It should be noted that the information execution process of the unit of the above-mentioned communication device 1400 can be specifically described in the method embodiment shown above in this application, and will not be repeated here.
[0494] Please refer to Figure 15, which is another schematic structural diagram of the communication device 1500 provided in this application. The communication device 1500 includes a logic circuit 1501 and an input / output interface 1502. The communication device 1500 can be a chip or an integrated circuit.
[0495] In Figure 14, the transceiver unit 1402 can be a communication interface, which can be the input / output interface 1502 in Figure 15. The input / output interface 1502 can include an input interface and an output interface. Alternatively, the communication interface can also be a transceiver circuit, which can include an input interface circuit and an output interface circuit.
[0496] In one possible implementation, when the device 1500 is used to execute the method performed by the first communication device in FIG3 and related embodiments, the logic circuit 1501 is used to determine interference measurement configuration information; the input / output interface 1502 is used to send the interference measurement configuration information to the second communication device; wherein the interference measurement configuration information is used to indicate at least one resource combination for interference measurement, wherein a plurality of resource units in the first resource combination are uniformly distributed in the time domain direction and / or frequency domain direction of the first resource block, and the first resource combination is included in at least one resource combination; and receiving an interference measurement report from the second communication device; wherein the interference measurement report is obtained based on interference measurement of at least one resource combination, and the interference measurement report is used for interference coordination.
[0497] In one possible implementation, when the device 1500 is used to execute the method performed by the second communication device in FIG3 and related embodiments, the input / output interface 1502 is used to receive interference measurement configuration information from the first communication device; wherein the interference measurement configuration information is used to indicate at least one resource combination for interference measurement, wherein a plurality of resource units in the first resource combination are uniformly distributed in the time domain direction and / or frequency domain direction of the first resource block, and the first resource combination is included in at least one resource combination; an interference measurement report is sent to the first communication device; wherein the interference measurement report is obtained based on interference measurement of at least one resource combination, and the interference measurement report is used for interference coordination; and the logic circuit 1501 is used to perform interference measurement according to the interference measurement configuration information.
[0498] In one possible implementation, when the device 1500 is used to execute the method performed by the first communication device in FIG8 and related embodiments, the logic circuit 1501 is used to determine interference measurement configuration information; the input / output interface 1502 is used to send the interference measurement configuration information to the second communication device; wherein, the interference measurement configuration information is used to indicate that a first resource combination is related to a resource combination of a reference signal, the first resource combination is used by the second communication device to determine the interference measurement information, and the interference measurement information is used for interference cancellation.
[0499] In one possible implementation, when the device 1500 is used to execute the method performed by the second communication device in FIG8 and related embodiments, the input / output interface 1502 is used to receive interference measurement configuration information from the first communication device; wherein, the interference measurement configuration information is used to indicate that a first resource combination is related to a resource combination of a reference signal; the logic circuit 1501 is used to determine the interference measurement information according to the first resource combination, and the interference measurement information is used for interference cancellation.
[0500] The logic circuit 1501 and the input / output interface 1502 can also perform other steps performed by the first or second communication device in any embodiment and achieve corresponding beneficial effects, which will not be elaborated here.
[0501] In one possible implementation, the processing unit 1401 shown in FIG14 can be the logic circuit 1501 in FIG15.
[0502] Optionally, the logic circuit 1501 can be a processing device, the functions of which can be partially or entirely implemented in software.
[0503] Optionally, the processing apparatus may include a memory and a processor, wherein the memory is used to store a computer program, and the processor reads and executes the computer program stored in the memory to perform the corresponding processing and / or steps in any of the method embodiments.
[0504] Optionally, the processing device may consist of only a processor. A memory for storing computer programs is located outside the processing device, and the processor is connected to the memory via circuitry / wires to read and execute the computer programs stored in the memory. The memory and processor may be integrated together or physically independent of each other.
[0505] Optionally, the processing device may be one or more chips, or one or more integrated circuits. For example, the processing device may be one or more field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), system-on-chips (SoCs), central processing units (CPUs), network processors (NPs), digital signal processors (DSPs), microcontroller units (MCUs), programmable logic controllers (PLDs), or other integrated chips, or any combination of the above chips or processors.
[0506] Please refer to Figure 16, which shows the communication device 1600 involved in the above embodiments provided in the embodiments of this application. Specifically, the communication device 1600 can be the communication device as a terminal device in the above embodiments. The example shown in Figure 16 is that the terminal device is implemented through the terminal device (or the components in the terminal device).
[0507] The present invention provides a possible logical structure diagram of the communication device 1600, which may include, but is not limited to, at least one processor 1601 and a communication port 1602.
[0508] In Figure 14, the transceiver unit 1402 can be a communication interface, which can be the communication port 1602 in Figure 16. The communication port 1602 can include an input interface and an output interface. Alternatively, the communication port 1602 can also be a transceiver circuit, which can include an input interface circuit and an output interface circuit.
[0509] Further optionally, the device may also include at least one of a memory 1603 and a bus 1604. In embodiments of this application, the at least one processor 1601 is used to control the operation of the communication device 1600.
[0510] Furthermore, the processor 1601 can be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, etc. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.
[0511] It should be noted that the communication device 1600 shown in Figure 16 can be used to implement the steps implemented by the terminal device in the aforementioned method embodiment and achieve the corresponding technical effects of the terminal device. The specific implementation of the terminal device shown in Figure 16 can be referred to the description of the first communication device or the second communication device in the aforementioned method embodiment, and will not be repeated here.
[0512] Please refer to Figure 17, which is a schematic diagram of the structure of the communication device 1700 involved in the above embodiments provided in the embodiments of this application. The communication device 1700 can specifically be a communication device as a network device in the above embodiments. The example shown in Figure 17 is that the network device is implemented through a network device (or a component in the network device). The structure of the communication device can refer to the structure shown in Figure 17.
[0513] The communication device 1700 includes at least one processor 1711 and at least one network interface 1714. Optionally, the communication device further includes at least one memory 1712, at least one transceiver 1713, and one or more antennas 1715. The processor 1711, memory 1712, transceiver 1713, and network interface 1714 are connected, for example, via a bus. In this embodiment, the connection may include various interfaces, transmission lines, or buses, etc., and this embodiment is not limited thereto. The antenna 1715 is connected to the transceiver 1713. The network interface 1714 enables the communication device to communicate with other communication devices through a communication link. For example, the network interface 1714 may include a network interface between the communication device and core network equipment, such as an S1 interface; the network interface may also include a network interface between the communication device and other communication devices (e.g., other network devices or core network equipment), such as an X2 or Xn interface.
[0514] In Figure 14, the transceiver unit 1402 can be a communication interface, which can be the network interface 1714 in Figure 17. The network interface 1714 can include an input interface and an output interface. Alternatively, the network interface 1714 can also be a transceiver circuit, which can include an input interface circuit and an output interface circuit.
[0515] Processor 1711 is primarily used for processing communication protocols and communication data, controlling the entire communication device, executing software programs, and processing data from the software programs, for example, to support the actions described in the embodiments of the communication device. The communication device may include a baseband processor and a central processing unit (CPU). The baseband processor is primarily used for processing communication protocols and communication data, while the CPU is primarily used for controlling the entire terminal device, executing software programs, and processing data from the software programs. Processor 1711 in Figure 17 can integrate the functions of both a baseband processor and a CPU. Those skilled in the art will understand that the baseband processor and CPU can also be independent processors interconnected via technologies such as buses. Those skilled in the art will understand that a terminal device may include multiple baseband processors to adapt to different network standards, and multiple CPUs to enhance its processing capabilities. Various components of the terminal device can be connected via various buses. The baseband processor can also be described as a baseband processing circuit or a baseband processing chip. The CPU can also be described as a central processing circuit or a central processing chip. The function of processing communication protocols and communication data can be built into the processor or stored in memory as a software program, which is then executed by the processor to implement the baseband processing function.
[0516] The memory is primarily used to store software programs and data. The memory 1712 can exist independently or be connected to the processor 1711. Optionally, the memory 1712 can be integrated with the processor 1711, for example, integrated within a single chip. The memory 1712 can store program code that executes the technical solutions of the embodiments of this application, and its execution is controlled by the processor 1711. The various types of computer program code being executed can also be considered as drivers for the processor 1711.
[0517] Figure 17 shows only one memory and one processor. In actual terminal devices, there may be multiple processors and multiple memories. Memory can also be called storage medium or storage device, etc. Memory can be a storage element on the same chip as the processor, i.e., an on-chip storage element, or it can be a separate storage element; this application does not limit this.
[0518] Transceiver 1713 can be used to support the reception or transmission of radio frequency (RF) signals between a communication device and a terminal. Transceiver 1713 can be connected to antenna 1715. Transceiver 1713 includes a transmitter Tx and a receiver Rx. Specifically, one or more antennas 1715 can receive RF signals. The receiver Rx of transceiver 1713 is used to receive the RF signals from the antennas, convert the RF signals into digital baseband signals or digital intermediate frequency (IF) signals, and provide the digital baseband signals or IF signals to processor 1711 so that processor 1711 can perform further processing on the digital baseband signals or IF signals, such as demodulation and decoding. In addition, the transmitter Tx in transceiver 1713 is also used to receive modulated digital baseband signals or IF signals from processor 1711, convert the modulated digital baseband signals or IF signals into RF signals, and transmit the RF signals through one or more antennas 1715. Specifically, the receiver Rx can selectively perform one or more stages of downmixing and analog-to-digital conversion on the radio frequency signal to obtain a digital baseband signal or a digital intermediate frequency (IF) signal. The order of these downmixing and IF conversion processes is adjustable. The transmitter Tx can selectively perform one or more stages of upmixing and digital-to-analog conversion on the modulated digital baseband signal or digital IF signal to obtain a radio frequency signal. The order of these upmixing and IF conversion processes is also adjustable. The digital baseband signal and the digital IF signal can be collectively referred to as digital signals.
[0519] The transceiver 1713 can also be called a transceiver unit, transceiver, transceiver device, etc. Optionally, the device in the transceiver unit that performs the receiving function can be regarded as the receiving unit, and the device in the transceiver unit that performs the transmitting function can be regarded as the transmitting unit. That is, the transceiver unit includes a receiving unit and a transmitting unit. The receiving unit can also be called a receiver, input port, receiving circuit, etc., and the transmitting unit can be called a transmitter, transmitter, or transmitting circuit, etc.
[0520] It should be noted that the communication device 1700 shown in Figure 17 can be used to implement the steps implemented by the network device in the aforementioned method embodiment and to achieve the corresponding technical effects of the network device. The specific implementation of the communication device 1700 shown in Figure 17 can be referred to the description of the first communication device or the second communication device in the aforementioned method embodiment, and will not be repeated here.
[0521] Please refer to Figure 18, which is a schematic diagram of the structure of the communication device involved in the above embodiments provided in the embodiments of this application.
[0522] It is understood that the communication device 1800 includes, for example, modules, units, elements, circuits, or interfaces, etc., appropriately configured together to execute the technical solutions provided in this application. The communication device 1800 may be the terminal device or network device described above, or a component (e.g., a chip) within these devices, used to implement the methods described in the following method embodiments. The communication device 1800 includes one or more processors 1801. The processor 1801 may be a general-purpose processor or a dedicated processor, etc. For example, it may be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (e.g., RAN node, terminal, or chip, etc.), execute software programs, and process data from the software programs.
[0523] Optionally, in one design, processor 1801 may include program 1803 (sometimes also referred to as code or instructions), which may be executed on processor 1801 to cause communication device 1800 to perform the methods described in the embodiments below. In yet another possible design, communication device 1800 includes circuitry (not shown in FIG18).
[0524] Optionally, the communication device 1800 may include one or more memories 1802 storing a program 1804 (sometimes referred to as code or instructions), which can be run on the processor 1801 to cause the communication device 1800 to perform the methods described in the above method embodiments.
[0525] Optionally, the processor 1801 and / or memory 1802 may include AI modules 1807 and 1808, which are used to implement AI-related functions. The AI modules can be implemented through software, hardware, or a combination of both. For example, the AI module may include a radio intelligence control (RIC) module. For example, the AI module may be a near real-time RIC or a non-real-time RIC.
[0526] Optionally, the processor 1801 and / or memory 1802 may include sensing modules 1809 and 1810, which are used to implement communication or sensing-related functions. The sensing modules may be implemented through software, hardware, or a combination of both.
[0527] Optionally, the AI module and the synesthesia module mentioned above can be separate modules or composite modules, and this application does not limit them in this regard.
[0528] Optionally, the processor 1801 and / or memory 1802 may also store data. The processor and memory may be configured separately or integrated together.
[0529] Optionally, the communication device 1800 may further include a transceiver 1805 and / or an antenna 1806. The processor 1801, sometimes referred to as a processing unit, controls the communication device (e.g., a RAN node or terminal). The transceiver 1805, sometimes referred to as a transceiver unit, transceiver, transceiver circuit, or transceiver, is used to realize the transmission and reception functions of the communication device through the antenna 1806.
[0530] In Figure 14, the processing unit 1401 can be a processor 1801. The transceiver unit 1402 shown in Figure 14 can be a communication interface, which can be the transceiver 1805 in Figure 18. The transceiver 1805 can include an input interface and an output interface. Alternatively, the transceiver 1805 can also be a transceiver circuit, which can include an input interface circuit and an output interface circuit.
[0531] This application also provides a computer-readable storage medium for storing one or more computer-executable instructions. When the computer-executable instructions are executed by a processor, the processor performs the method described in the possible implementations of the first or second communication device in the foregoing embodiments.
[0532] This application also provides a computer program product (or computer program) that, when executed by a processor, executes the method described above for the possible implementation of the first or second communication device.
[0533] This application also provides a chip system including at least one processor for supporting a communication device in implementing the functions involved in the possible implementations of the communication device described above. Optionally, the chip system further includes an interface circuit that provides program instructions and / or data to the at least one processor. In one possible design, the chip system may also include a memory for storing the program instructions and data necessary for the communication device. The chip system may be composed of chips or may include chips and other discrete devices, wherein the communication device may specifically be the first communication device or the second communication device in the aforementioned method embodiments.
[0534] This application also provides a communication system, which includes the first communication device in any of the above embodiments.
[0535] Optionally, the communication system may also include a second communication device.
[0536] In the embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, indirect coupling or communication connection between devices or units, and may be electrical, mechanical, or other forms. Whether a function is implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.
[0537] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0538] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.
Claims
1. A communication method, characterized in that, The method is applied to a first communication device, and the method includes: Send interference measurement configuration information to a second communication device; wherein the interference measurement configuration information is used to indicate at least one resource combination for interference measurement, wherein a plurality of resource units in a first resource combination are uniformly distributed in the time domain direction and / or frequency domain direction of a first resource block, and the first resource combination is included in the at least one resource combination; Receive an interference measurement report from the second communication device; wherein the interference measurement report is obtained based on interference measurement of the at least one resource combination, and the interference measurement report is used for interference coordination.
2. The method according to claim 1, characterized in that, The interference measurement configuration information is used to indicate at least one frequency domain resource density, wherein the first frequency domain resource density is used to indicate the number of resource units in the first resource combination that are uniformly distributed in the frequency domain direction corresponding to the first time domain symbol; wherein the first time domain symbol is any time domain symbol in the first resource block, and the first frequency domain resource density is included in the at least one frequency domain resource density.
3. The method according to claim 2, characterized in that, The interference measurement configuration information is also used to indicate a first starting position, which is the starting position of multiple resource units in the first resource combination on the first time domain symbol. The value corresponding to the first starting position is less than or equal to a first interval value, which is the ratio of the number of subcarriers corresponding to the first resource block to the first frequency domain resource density.
4. The method according to claim 2 or 3, characterized in that, The interference measurement configuration information is also used to indicate the index of the first time-domain symbol.
5. The method according to claim 1, characterized in that, The interference measurement configuration information is used to indicate at least one time-domain resource density, wherein the first time-domain resource density is used to indicate the number of resource units in the first resource combination that are uniformly distributed in the time-domain direction corresponding to the first subcarrier; wherein the first subcarrier is any subcarrier in the first resource block, and the first time-domain resource density is included in the at least one time-domain resource density.
6. The method according to claim 5, characterized in that, The interference measurement configuration information is also used to indicate a second starting position, which is the starting position of the plurality of resource units in the first resource combination on the first subcarrier. The value corresponding to the second starting position is less than or equal to a second interval value, which is the ratio of the number of time-domain symbols corresponding to the first resource block to the first time-domain resource density.
7. The method according to claim 5 or 6, characterized in that, The interference measurement configuration information is also used to indicate the index of the first subcarrier.
8. The method according to claim 1, characterized in that, The interference measurement configuration information is used to indicate at least one time-frequency resource density, wherein the first time-frequency resource density is used to indicate the number of resource units in the first resource combination uniformly distributed on each of the N second time-domain symbols, the N second time-domain symbols being uniformly distributed in the first resource block, the first time-frequency resource density being included in the at least one time-frequency resource density, and N being an integer greater than 1.
9. The method according to claim 8, characterized in that, The interference measurement configuration information is further used to indicate the index of each subcarrier corresponding to the first resource combination, or the interference measurement configuration information is further used to indicate a third starting position; wherein the third starting position is the starting position of the plurality of resource elements in the first resource combination on the second time domain symbol, the value corresponding to the third starting position is less than or equal to a third interval value, and the third interval value is the ratio of the number of subcarriers corresponding to the first resource block to the number of resource elements in the first resource combination on a second time domain symbol.
10. The method according to claim 8 or 9, characterized in that, The interference measurement configuration information is further used to indicate the index of the N second time-domain symbols; or, the interference measurement configuration information is further used to indicate a fourth starting position; wherein, the fourth starting position is the starting position of the N second time-domain symbols, the value corresponding to the fourth starting position is less than or equal to the fourth interval value, and the fourth interval value is the ratio of the number of time-domain symbols corresponding to the first resource block to N.
11. The method according to any one of claims 1-10, characterized in that, The interference measurement configuration information includes at least one of the following: information on resource patterns, table information, or formula information used to indicate the at least one combination of resources.
12. The method according to any one of claims 1-11, characterized in that, The method further includes: Send a first instruction message to a third communication device; wherein the first instruction message is used to instruct the third communication device to perform interference adjustment.
13. A communication method, characterized in that, The method is applied to a second communication device, and the method includes: Receive interference measurement configuration information from a first communication device; wherein the interference measurement configuration information is used to indicate at least one resource combination for interference measurement, wherein a plurality of resource elements in the first resource combination are uniformly distributed in the time domain direction and / or frequency domain direction of a first resource block, and the first resource combination is included in the at least one resource combination; An interference measurement report is sent to the first communication device; wherein the interference measurement report is obtained based on interference measurement of the at least one resource combination, and the interference measurement report is used for interference coordination.
14. The method according to claim 13, characterized in that, The interference measurement configuration information is used to indicate at least one frequency domain resource density, wherein the first frequency domain resource density is used to indicate the number of resource units in the first resource combination that are uniformly distributed in the frequency domain direction corresponding to the first time domain symbol; wherein the first time domain symbol is any time domain symbol in the first resource block, and the first frequency domain resource density is included in the at least one frequency domain resource density.
15. The method according to claim 14, characterized in that, The interference measurement configuration information is also used to indicate a first starting position, which is the starting position of multiple resource units in the first resource combination on the first time domain symbol. The value corresponding to the first starting position is less than or equal to a first interval value, which is the ratio of the number of subcarriers corresponding to the first resource block to the first frequency domain resource density.
16. The method according to claim 14 or 15, characterized in that, The interference measurement configuration information is also used to indicate the index of the first time-domain symbol.
17. The method according to claim 13, characterized in that, The interference measurement configuration information is used to indicate at least one time-domain resource density, wherein the first time-domain resource density is used to indicate the number of resource units in the first resource combination that are uniformly distributed in the time-domain direction corresponding to the first subcarrier; wherein the first subcarrier is any subcarrier in the first resource block, and the first time-domain resource density is included in the at least one time-domain resource density.
18. The method according to claim 17, characterized in that, The interference measurement configuration information is also used to indicate a second starting position, which is the starting position of the plurality of resource units in the first resource combination on the first subcarrier. The value corresponding to the second starting position is less than or equal to a second interval value, which is the ratio of the number of time-domain symbols corresponding to the first resource block to the first time-domain resource density.
19. The method according to claim 17 or 18, characterized in that, The interference measurement configuration information is also used to indicate the index of the first subcarrier.
20. The method according to claim 13, characterized in that, The interference measurement configuration information is used to indicate at least one time-frequency resource density, wherein the first time-frequency resource density is used to indicate the number of resource units in the first resource combination uniformly distributed on each of the N second time-domain symbols, the N second time-domain symbols being uniformly distributed in the first resource block, the first time-frequency resource density being included in the at least one time-frequency resource density, and N being an integer greater than 1.
21. The method according to claim 20, characterized in that, The interference measurement configuration information is further used to indicate the index of each subcarrier corresponding to the first resource combination, or the interference measurement configuration information is further used to indicate a third starting position; wherein the third starting position is the starting position of the plurality of resource elements in the first resource combination on the second time domain symbol, the value corresponding to the third starting position is less than or equal to a third interval value, and the third interval value is the ratio of the number of subcarriers corresponding to the first resource block to the number of resource elements in the first resource combination on a second time domain symbol.
22. The method according to claim 20 or 21, characterized in that, The interference measurement configuration information is further used to indicate the index of the N second time-domain symbols; or, the interference measurement configuration information is further used to indicate a fourth starting position; wherein, the fourth starting position is the starting position of the N second time-domain symbols, the value corresponding to the fourth starting position is less than or equal to the fourth interval value, and the fourth interval value is the ratio of the number of time-domain symbols corresponding to the first resource block to N.
23. The method according to any one of claims 13-22, characterized in that, The interference measurement configuration information includes at least one of the following: information on resource patterns, table information, or formula information used to indicate the at least one combination of resources.
24. A communication method, characterized in that, The method is applied to a first communication device, and the method includes: The interference measurement configuration information is sent to the second communication device; wherein the interference measurement configuration information is used to indicate that a first resource combination is related to a resource combination of a reference signal, the first resource combination is used by the second communication device to determine the interference measurement information, and the interference measurement information is used for interference cancellation.
25. The method according to claim 24, characterized in that, The interference measurement configuration information is used to indicate sparsity, which indicates the degree of sparsity of the first resource combination relative to the resource combination of the reference signal.
26. The method according to claim 24 or 25, characterized in that, The reference signal includes at least one of the following: positioning reference signal, detection reference signal, sensing reference signal, channel state information reference signal, synchronization signal, or demodulation reference signal.
27. The method according to any one of claims 24-26, characterized in that, The method further includes: The system receives interference measurement information from the second communication device, the interference measurement information being obtained based on interference measurements performed by the second communication device based on the first resource combination.
28. The method according to claim 27, characterized in that, The method further includes: Receive sensing measurement information from the second communication device, the sensing measurement information including first interference information; Based on the interference measurement information, interference cancellation is performed on the sensing measurement information.
29. The method according to claim 28, characterized in that, The step of eliminating interference in the sensed measurement information based on the interference measurement information includes: Estimate the first interference information based on the interference measurement information; The first interference information is eliminated based on the estimation result of the first interference information.
30. The method according to any one of claims 24-29, characterized in that, The interference measurement information includes at least one of the following: channel impulse response, range-angle velocity spectrum, power delay spectrum, or multipath information.
31. The method according to any one of claims 24-30, characterized in that, The method further includes: The first configuration information of the reference signal is sent to the third communication device, and the first configuration information of the reference signal is used by the third communication device to perform interference measurement and / or interference cancellation.
32. The method according to claim 31, characterized in that, The method further includes: Receive a first response from the third communication device; The second configuration information for determining whether to send the reference signal is based on the first response, wherein the first response is determined by the third communication device based on interference measurement performed by the first configuration information.
33. A communication method, characterized in that, The method is applied to a second communication device, and the method includes: Receive interference measurement configuration information from a first communication device; wherein the interference measurement configuration information is used to indicate that a first resource combination is related to a resource combination of a reference signal; Interference measurement information is determined based on the first resource combination, and the interference measurement information is used for interference cancellation.
34. The method according to claim 33, characterized in that, The interference measurement configuration information is used to indicate sparsity, which indicates the degree of sparsity of the first resource combination relative to the resource combination of the reference signal.
35. The method according to claim 33 or 34, characterized in that, The reference signals include positioning reference signals, detection reference signals, sensing reference signals, channel state information reference signals, synchronization signals, or demodulation reference signals.
36. The method according to any one of claims 33-35, characterized in that, The method further includes: Estimate the first interference information in the sensing measurement information based on the interference measurement information; The first interference information in the sensing measurement information is eliminated based on the estimation result of the first interference information.
37. The method according to any one of claims 33-35, characterized in that, The method further includes: The interference measurement information and the sensing measurement information are sent to the first communication device. The sensing measurement information includes first interference information. The interference measurement information is used by the first communication device to cancel the interference of the first interference information in the sensing measurement information.
38. The method according to any one of claims 33-37, characterized in that, The interference measurement information includes at least one of the following: channel impulse response, range-angle velocity spectrum, power delay spectrum, or multipath information.
39. A communication device, characterized in that, It includes a module for performing the method as described in any one of claims 1 to 12, or includes a module for performing the method as described in any one of claims 13 to 23; or includes a module for performing the method as described in any one of claims 24 to 32, or includes a module for performing the method as described in any one of claims 33 to 38.
40. A communication device, characterized in that, It includes at least one processor, the at least one processor being configured to perform the method as claimed in any one of claims 1 to 12, or the at least one processor being configured to perform the method as claimed in any one of claims 13 to 23; or the at least one processor being configured to perform the method as claimed in any one of claims 24 to 32, or the at least one processor being configured to perform the method as claimed in any one of claims 33 to 38.
41. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program or instructions that, when executed by a communication device, implement the method as described in any one of claims 1 to 12, or the method as described in any one of claims 13 to 23; or the method as described in any one of claims 24 to 32, or the method as described in any one of claims 33 to 38.
42. A computer program product, characterized in that, It includes a computer program or instructions that, when executed by a computer, implement the method as described in any one of claims 1 to 12, or the method as described in any one of claims 13 to 23; or the method as described in any one of claims 24 to 32, or the method as described in any one of claims 33 to 38.