Signal processing method and device, related equipment, storage medium and computer program product

Abstract

The invention discloses a signal processing method and device, first access network equipment, second access network equipment, a storage medium and a computer program product. The method comprises the steps that a first access network device selects one or more first sets, each first set comprises one or more second access network devices, the second access network devices have a communication function, and the first access network device has a communication function and a sensing function; receiving a reference signal sent by a second access network device associated with the one or more first sets, and determining first information, the reference signal being used by the second access network device for cross slot interference measurement of the first access network device, the first information representing a measurement result of the reference signal; and determining second information by using the first information, the second information representing a second access network device associated with the cross time slot interference and / or a beam direction corresponding to the second access network device.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, and in particular to a signal processing method, apparatus, related equipment, storage medium, and computer program product. Background Technology

[0002] Synchrotron technology refers to the time-division transmission of communication and sensing resources in a communication system. Specifically, in a communication system, when a specific time slot of the communication signal is used for sensing, that specific time slot is used to send or receive sensing signals, while the communication signal remains silent.

[0003] However, in the above process, there may be a problem of cross-time slot interference caused by the transmission of communication signals to the reception of sensing signals, which may lead to a significant decrease in performance indicators such as sensing accuracy. Summary of the Invention

[0004] To address the related technical problems, embodiments of this application provide a signal processing method, apparatus, related devices, storage medium, and computer program product.

[0005] The technical solution of this application embodiment is implemented as follows:

[0006] This application provides a signal processing method applied to a first access network device, including:

[0007] Select one or more first sets, each first set containing one or more second access network devices, the second access network devices having communication functions, and the first access network devices having both communication and sensing functions;

[0008] Receive a reference signal sent by a second access network device associated with one or more first sets, and determine first information, wherein the reference signal is used for cross-slot interference measurement of the first access network device by the second access network device, and the first information characterizes the measurement result of the reference signal;

[0009] Using the first information, second information is determined, wherein the second information characterizes the beam direction of the second access network device and / or the second access network device associated with cross-time slot interference.

[0010] In the above scheme, the reference signal includes a Remote Interference Management-Reference Signal (RIM-RS). Different RIM-RS associated with the same cell correspond to different directions of the first beam, and the first beam is used to transmit the RIM-RS.

[0011] In the above scheme, the RIM-RS includes a first RIM-RS corresponding to a first cell and a second RIM-RS corresponding to a second cell;

[0012] If, during a RIM-RS transmission cycle, a transmission time window other than the transmission time window of the first RIM-RS is used to transmit the second RIM-RS, then a RIM-RS transmission cycle includes a transmission time window of the first RIM-RS.

[0013] If, within a RIM-RS transmission cycle, other than the transmission time window of the first RIM-RS, can be used to transmit the first RIM-RS, then a RIM-RS transmission cycle contains multiple transmission time windows of the first RIM-RS.

[0014] In the above scheme, receiving the reference signal sent by the second access network device associated with the one or more first sets includes:

[0015] Obtain third information, which characterizes the transmission time window and / or transmission period of the RIM-RS in the first time slot;

[0016] Using the third information, fourth information is determined, which characterizes the reception time window and / or reception period of the RIM-RS in the second time slot;

[0017] Using the fourth information, receive RIM-RS sent by a second access network device associated with one or more first sets.

[0018] In the above scheme, the reference signal includes Channel State Information-Reference Signal (CSI-RS), and different CSI-RS correspond to different directions of the second beam, which is used to transmit the CSI-RS.

[0019] In the above scheme, receiving the reference signal sent by the second access network device associated with the one or more first sets includes:

[0020] The fifth piece of information is obtained, which characterizes the transmission time window and / or transmission period of CSI-RS in the third time slot;

[0021] Using the fifth information, the sixth information is determined, which characterizes the reception time window and / or reception period of CSI-RS in the fourth time slot, which is capable of receiving sensing signals;

[0022] Using the sixth information, receive CSI-RS sent by a second access network device associated with one or more first sets.

[0023] The method in the above scheme further includes:

[0024] The transmission mode of the fourth time slot is adjusted from the first mode to the second mode. The first mode is used to send and receive sensing signals, and the second mode is used to receive sensing signals.

[0025] In the above scheme, selecting one or more first sets includes:

[0026] Receive communication signals sent by second access network devices associated with one or more second sets, and determine seventh information, the seventh information characterizing the measurement result of the communication signals, each second set containing one or more second access network devices;

[0027] Using the seventh information, select one or more of the first sets from the one or second set.

[0028] The method in the above scheme further includes:

[0029] The network device sends an eighth message, which is used to request the generation of the one or more second sets. The one or more second sets are generated based on a ninth message, which contains state-related information of the first access network device and the one or more second access network devices. The network device is at least used to configure transmission resources for communication signals for the one or more second sets.

[0030] This application also provides a signal processing method applied to a second access network device, including:

[0031] A reference signal is sent to a first access network device. The reference signal is used by the second access network device to measure cross-slot interference of the first access network device. The second access network device is associated with one or more first sets. Each first set contains one or more second access network devices. The second access network device has communication functions. The first access network device has both communication functions and sensing functions.

[0032] In the above scheme, the reference signal includes RIM-RS, and different RIM-RS associated with the same cell correspond to different directions of the first beam, which is used to transmit the RIM-RS.

[0033] In the above scheme, the RIM-RS includes a first RIM-RS corresponding to a first cell and a second RIM-RS corresponding to a second cell;

[0034] If, during a RIM-RS transmission cycle, a transmission time window other than the transmission time window of the first RIM-RS is used to transmit the second RIM-RS, then a RIM-RS transmission cycle includes a transmission time window of the first RIM-RS.

[0035] If, within a RIM-RS transmission cycle, other than the transmission time window of the first RIM-RS, can be used to transmit the first RIM-RS, then a RIM-RS transmission cycle contains multiple transmission time windows of the first RIM-RS.

[0036] In the above scheme, the reference signal includes CSI-RS, and different CSI-RS correspond to different directions of the second beam, which is used to transmit the CSI-RS.

[0037] The method in the above scheme further includes:

[0038] A communication signal is sent to the first access network device, the second access network device being associated with one or more second sets, each second set containing one or more second access network devices, the communication signal being used to determine seventh information, the seventh information being characterized as a measurement result of the communication signal, the seventh information being used to select the one or more first sets from the one or more second sets.

[0039] This application embodiment also provides a signal processing apparatus, disposed in a first access network device, including:

[0040] The selection unit is used to select one or more first sets, each first set containing one or more second access network devices, the second access network devices having communication functions, and the first access network devices having both communication and sensing functions.

[0041] A first receiving unit is configured to receive a reference signal sent by a second access network device associated with one or more first sets, and determine first information, wherein the reference signal is used for cross-slot interference measurement of the first access network device by the second access network device, and the first information characterizes the measurement result of the reference signal;

[0042] The determining unit is used to determine second information using the first information, wherein the second information characterizes the beam direction of the second access network device and / or the second access network device associated with cross-time slot interference.

[0043] This application embodiment also provides a signal processing apparatus, disposed in a second access network device, including:

[0044] The first transmitting unit is configured to transmit a reference signal to a first access network device. The reference signal is used for cross-slot interference measurement of the first access network device by the second access network device. The second access network device is associated with one or more first sets, and each first set contains one or more second access network devices. The second access network device has communication functions, and the first access network device has both communication and sensing functions.

[0045] This application embodiment also provides a first access network device, including: a first processor and a first communication interface; wherein,

[0046] The first processor is configured to select one or more first sets, each first set containing one or more second access network devices, the second access network devices having communication functions, and the first access network devices having both communication and sensing functions; receive reference signals transmitted by the second access network devices associated with the one or more first sets through the first communication interface, and determine first information, the reference signals being used by the second access network devices to measure cross-slot interference of the first access network devices, the first information representing the measurement result of the reference signals; and use the first information to determine second information, the second information representing the second access network devices associated with cross-slot interference and / or the beam direction corresponding to the second access network devices.

[0047] This application embodiment also provides a second access network device, including: a second processor and a second communication interface; wherein,

[0048] The second communication interface is used to send a reference signal to the first access network device. The reference signal is used for the second access network device to measure the cross-time slot interference of the first access network device. The second access network device is associated with one or more first sets, and each first set contains one or more second access network devices. The second access network device has communication functions, and the first access network device has both communication and sensing functions.

[0049] This application also provides a first access network device, including: a first processor and a first memory for storing a computer program capable of running on the processor.

[0050] Wherein, when the first processor is used to run the computer program, it executes the steps of any of the methods described above on the first access network device side.

[0051] This application also provides a second access network device, including: a second processor and a second memory for storing computer programs capable of running on the processor.

[0052] Wherein, when the second processor is used to run the computer program, it executes the steps of any of the methods described above on the second access network device side.

[0053] This application embodiment also provides a storage medium storing a computer program thereon, which, when executed by a processor, implements the steps of any of the methods described above for the first access network device side, or implements the steps of any of the methods described above for the second access network device side.

[0054] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of any of the methods described above for the first access network device side, or implements the steps of any of the methods described above for the second access network device side.

[0055] The signal processing method, apparatus, related devices, storage medium, and computer program products provided in this application embodiment include: a first access network device selecting one or more first sets, each first set containing one or more second access network devices, the second access network devices having communication functions, and the first access network device having both communication and sensing functions; receiving reference signals sent by the second access network devices associated with the one or more first sets, and determining first information, the reference signals being used by the second access network devices to measure cross-time slot interference of the first access network devices, the first information representing the measurement result of the reference signals; using the first information, determining second information, the second information representing the second access network devices associated with cross-time slot interference and / or the beam direction corresponding to the second access network devices. The technical solution provided in this application embodiment involves a sensing base station (i.e., the first access network device) screening communication base stations (i.e., the second access network devices), receiving and measuring reference signals sent by the screened communication base stations to determine the main communication base stations and beam transmission directions causing cross-time slot interference, thereby providing a basis for subsequent interference avoidance measures. This avoids cross-time slot interference between communication base stations and sensing base stations, ensuring the sensing performance indicators of the sensing base station. Attached Figure Description

[0056] Figure 1 This is a schematic diagram of a cross-slot interference structure;

[0057] Figure 2 This is a schematic diagram of a structure for avoiding cross-time slot interference in related technologies;

[0058] Figure 3 This is a schematic flowchart of a first signal processing method according to an embodiment of this application;

[0059] Figure 4 This is a schematic diagram of a second set according to an embodiment of this application;

[0060] Figure 5This is a schematic diagram of a RIM-RS structure in related technologies;

[0061] Figure 6 This is a schematic diagram of the first method for transmitting RIM-RS according to an embodiment of this application;

[0062] Figure 7 This is a schematic diagram of the second method for transmitting RIM-RS according to an embodiment of this application;

[0063] Figure 8 This is a schematic diagram of a structure for transmitting RIM-RS according to an embodiment of this application;

[0064] Figure 9 This is a schematic flowchart of the second signal processing method according to an embodiment of this application;

[0065] Figure 10 This is a flowchart illustrating the cross-slot interference detection process, an application example of this application.

[0066] Figure 11 This is a schematic diagram of the structure of a first signal processing device according to an embodiment of this application;

[0067] Figure 12 This is a schematic diagram of the structure of a second type of signal processing device according to an embodiment of this application;

[0068] Figure 13 This is a schematic diagram of the structure of the first access network device according to an embodiment of this application;

[0069] Figure 14 This is a schematic diagram of the structure of the second access network device according to an embodiment of this application;

[0070] Figure 15 This is a schematic diagram of the signal processing system according to an embodiment of this application. Detailed Implementation

[0071] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0072] For cross-slot interference, such as Figure 1As shown, within the deployment area of ​​the sensing service, two time slots (time slot 0 and time slot 5, hereinafter referred to as sensing time slots (specifically Se)) under the air interface frame (also known as a radio frame) structure in the 5G system are used to transmit and receive sensing signals. Outside the coverage area of ​​the sensing service, the two time slots under the air interface frame structure are also used to transmit downlink communication signals. Since the sensing time slots may be used to transmit sensing signals and communication signals simultaneously, there will be cross-time slot interference caused by the downlink transmission of communication signals to the uplink reception of sensing signals. In other words, in the sensing time slots, the received sensing signals will be mixed with a large amount of downlink sensing signals, which will cause a sharp deterioration in the received signal-to-noise ratio of the sensing signals, thereby leading to a decrease in performance indicators such as sensing accuracy.

[0073] To address the aforementioned issues, a scheme to circumvent cross-time slot interference has been proposed in related technologies. For example... Figure 2 As shown, the method of abandoning the downlink resources of the corresponding time slots of the communication base station in a certain area is adopted to avoid cross-time slot interference. Specifically, within the perimeter of the deployment area of ​​the sensing base station (such as within 20km), the communication base station silences the downlink communication signal during the time slot used to transmit sensing signals, thereby avoiding the generation of cross-time slot interference.

[0074] However, the above scheme will significantly reduce the downlink transmission resources of the communication base station, thereby affecting the downlink service performance of the communication base station.

[0075] Based on this, in various embodiments of this application, after screening out potential interfering communication base stations, the affected sensing base station receives and measures the reference signal sent by the potential interfering communication base station to obtain the measurement result; based on the measurement result, the main communication base station and beam transmission direction causing cross-time slot interference among the potential interfering communication base stations are determined so that subsequent interference avoidance adjustments can be made to the communication base stations that are the main interference factors (such as beam direction adjustment or transmission power backoff, etc.), and downlink resources are reserved for communication base stations that are not the main interference factors. In this way, the sensing performance and capability requirements of the sensing base station can be guaranteed while ensuring the downlink service performance of the communication base station.

[0076] This application provides a signal processing method applied to a first access network device, such as... Figure 3 As shown, the method includes:

[0077] Step 301: Select one or more first sets, each first set containing one or more second access network devices, the second access network devices having communication functions, and the first access network devices having both communication and sensing functions;

[0078] Step 302: Receive a reference signal sent by a second access network device associated with the one or more first sets, and determine first information, wherein the reference signal is used for cross-slot interference measurement of the first access network device by the second access network device, and the first information characterizes the measurement result of the reference signal;

[0079] Step 303: Using the first information, determine the second information, wherein the second information characterizes the beam direction of the second access network device and / or the second access network device associated with cross-time slot interference.

[0080] In practical applications, the first access network device can be called a sensing base station, a sensing base station, or a sensing device, and the second access network device can be called a communication base station or a communication device. In this application embodiment, the names of the first access network device and the second access network device are not limited, as long as their functions are implemented.

[0081] In practical applications, in step 301, since the deployment range of the second access network devices in the network is large (which can also be understood as the second access network devices forming a continuous network coverage), if the cross-time slot interference is measured for all the second access network devices in the network, it will occupy a lot of communication resources and the implementation complexity is high. Therefore, the first access network device can screen the second access network devices in the network to screen out the second access network devices that participate in the cross-time slot interference.

[0082] Specifically, in one embodiment, selecting one or more first sets includes:

[0083] Receive communication signals sent by second access network devices associated with one or more second sets, and determine seventh information, the seventh information characterizing the measurement result of the communication signals, each second set containing one or more second access network devices;

[0084] Using the seventh information, select one or more of the first sets from the one or second set.

[0085] The one or more first sets can be understood as the set of second access network devices that actually participate in cross-time slot interference detection, or as the transmission range of the second access network devices for cross-time slot interference detection. That is, the second access network devices in the one or more first sets will cause cross-time slot interference to the first access network device. In this case, the second access network devices in the one or more first sets can also be called interfering access network devices or interfering base stations, and the first access network device can also be called the interfering access network device or the interfering base station.

[0086] Here, before selecting the one or more first sets, the first access network device needs to determine the one or more second sets from the network so as to select the first set from the one or more second sets according to the set rules; wherein, the one or more second sets can be understood as a set of second access network devices in the network that may participate in cross-time slot interference detection, that is, the second access network devices in the one or more second sets may cause cross-time slot interference to the first access network device.

[0087] In practical applications, the first access network device can trigger the filtering process of the second set through network devices.

[0088] Based on this, in one embodiment, the method may further include:

[0089] The network device sends an eighth message, which is used to request the generation of the one or more second sets. The one or more second sets are generated based on a ninth message, which contains state-related information of the first access network device and the one or more second access network devices. The network device is at least used to configure transmission resources for communication signals for the one or more second sets.

[0090] In practical applications, the network device can manage the first access network device and / or the second access network device in the network. The network device may include Operation Administration and Maintenance (OAM). This application embodiment does not limit the specific type of network device, as long as its functions are implemented. In addition, the ninth information can be understood as information stored locally by the network device. The status-related information may include one or more of network topology, deployment location, and sector orientation (or at least one of them).

[0091] In practical applications, considering factors such as network topology, deployment distance, or sector orientation, the degree of interference caused by different second access network devices in the network may vary. Therefore, the network device can divide the second access network devices in the network into one or more second sets (which can be expressed as "set" in English).

[0092] Here, after receiving the eighth information (which can also be understood as a management plane message), the network device can use the locally stored ninth information to determine the second access network devices around the deployment area of ​​the first access network device, and divide the determined second access network devices to obtain the one or more second sets; wherein, the second access network devices in a second set may have similar network topology, deployment distance or sector orientation and other characteristics.

[0093] For example, such as Figure 4 As shown, using the ninth information, the network device can be divided into four second sets, namely second set 1 (which can be represented as set1), second set 2 (which can be represented as set2), second set 3 (which can be represented as set3) and second set 4 (which can be represented as set4).

[0094] It should be noted that before sending the eighth information, the first access network device needs to determine whether to initiate the cross-slot interference detection procedure. If it is determined that the cross-slot interference detection procedure should be initiated, the first access network can send the eighth information to the network device; if it is determined that the cross-slot interference detection procedure should not be initiated, the first access network can stop sending the eighth information to the network device.

[0095] For example, in determining whether to initiate the cross-time slot interference detection process, when deploying the first access network device, second access network devices within a certain radius (e.g., 1 km) can be configured to silence communication signals in specific time slots (e.g., time slots 0 and 5). In this way, the first access network device can determine not to initiate the cross-time slot interference detection process for second access network devices within a certain radius. Alternatively, after deploying the first access network device, noise floor and interference level thresholds can be configured for it. This allows the first access network device to filter the reflected sensing echoes, determine the level of interference from the communication signal, and, if the interference level meets the noise floor and interference level thresholds, determine to initiate the cross-time slot interference detection process.

[0096] In practical applications, after determining the one or more second sets, the network device can send tenth information to the second access network devices in the one or more second sets. The tenth information indicates the transmission resources (e.g., time window or period) of the second set and / or the communication signal (which can also be understood as a scrambling signal). The tenth information may include identification-related information of the second set (e.g., an index). In this way, the second access network devices in the one or more second sets can know which second set they belong to, and also the resources available for sending the communication signal, so as to subsequently send the communication signal.

[0097] In addition, the network device can also synchronize the tenth information to the first access network device, so that the first access network device can know how to receive the communication signal.

[0098] In practical applications, when the tenth information indicates the transmission resources of the communication signal, the second access network devices in one or more second sets can use the indicated transmission resources to send the communication signal to the first access network device. The time window can be located in the downlink time slot (which can be represented as D) corresponding to the sensing time slot. Among them, a second access network device in a second set can exclusively occupy a pre-configured time window and / or period to send the communication signal individually. Of course, multiple second access network devices in a second set can also use the same pre-configured time window and / or period to send the communication signal in combination. This application embodiment does not limit this.

[0099] Accordingly, the first access network device may, based on the tenth information, switch the transmission mode of the sensing signal in the time window of the communication signal to the reception mode of the communication signal, so as to receive and measure the communication signal and obtain the seventh information. The seventh information may include the received signal strength of the second access network device corresponding to the one or more second sets.

[0100] In practical applications, the first access network device can use the seventh information to select one or more first sets. For example, after sorting the received signal strength of different second sets from largest to smallest, the device can select the top M% (the value of M can be set as needed, such as 20%, 50%, etc., which is not limited in this embodiment) of the second sets as the one or more first sets. Alternatively, the device can compare the received signal strength of different second sets with a preset first threshold (the value can be set as needed, which is not limited in this embodiment), and select the second sets with received signal strength higher than the first threshold as the one or more first sets. This embodiment does not limit the method of selecting the first sets.

[0101] In practical applications, in step 302, the second access network device in one or more of the first sets can transmit the reference signal (also called a pilot or pilot signal) so that the first access network device can measure cross-time slot interference; wherein, the reference signal may include RIM-RS or CSI-RS.

[0102] In related technologies, such as Figure 5As shown, the second access network device transmits reference signals using time-domain, frequency-domain, or code-domain resources based on the cell ID mapping method in the RIM-RS resource mapping rules. Specifically, it can periodically use time-domain resources to transmit reference signals, with the transmission location of the time-domain resources located in the last two Orthogonal Frequency Division Multiplexing (OFDM) symbols of the S-subframe within a specific radio frame. However, the above transmission method cannot simulate the interference characteristics and intensity of communication signals.

[0103] In practical applications, in order to solve the above problems, this application embodiment introduces a beam scanning mechanism to transmit RIM-RS.

[0104] Specifically, in one embodiment, the reference signal includes RIM-RS, and different RIM-RS associated with the same cell correspond to different directions of a first beam, the first beam being used to transmit the RIM-RS.

[0105] In practical applications, during the transmission of the RIM-RS, the second access network devices in one or more of the first sets can transmit different RIM-RS through the first beam in different directions.

[0106] Specifically, in one embodiment, the RIM-RS includes a first RIM-RS corresponding to a first cell and a second RIM-RS corresponding to a second cell;

[0107] If, during a RIM-RS transmission cycle, a transmission time window other than the transmission time window of the first RIM-RS is used to transmit the second RIM-RS, then a RIM-RS transmission cycle includes a transmission time window of the first RIM-RS.

[0108] If, within a RIM-RS transmission cycle, other than the transmission time window of the first RIM-RS, can be used to transmit the first RIM-RS, then a RIM-RS transmission cycle contains multiple transmission time windows of the first RIM-RS.

[0109] In practical applications, the transmission time window of the first RIM-RS and the transmission time window of the second RIM-RS can be located in the time slot of the radio frame (e.g., time slot 7).

[0110] In practical applications, to reduce the occupation of time-domain transmission resources, if, within a RIM-RS transmission cycle, consecutive transmission time windows following the first RIM-RS transmission time window are used to transmit the second RIM-RS (which can also be understood as RIM-RS from other cells), then the second access network devices in one or more of the first sets can utilize the first RIM-RS transmission time window within the current transmission cycle to transmit a first RIM-RS via a first beam in one direction. Then, they can utilize the first RIM-RS transmission time window in the next RIM-RS transmission cycle to transmit another RIM-RS via a first beam in another direction. In this case, a RIM-RS transmission cycle contains one first RIM-RS transmission time window.

[0111] For example, such as Figure 6 As shown, assuming there are three first beams in three directions, namely first beam 1, first beam 2, and first beam 3, and a transmission cycle of one RIM-RS includes one transmission time window of the first RIM-RS, then the second access network device can use the transmission time window of the first RIM-RS in the first transmission cycle to transmit the first first RIM-RS through first beam 1, and simultaneously use the transmission time window of the second RIM-RS to transmit a second RIM-RS through first beam 1; use the transmission time window of the first RIM-RS in the second transmission cycle to transmit the second first RIM-RS through first beam 2; and use the transmission time window of the first RIM-RS in the third transmission cycle to transmit the third first RIM-RS through first beam 3.

[0112] Here, within a RIM-RS transmission cycle, if other consecutive transmission time windows following the first RIM-RS transmission time window can be used to transmit the first RIM-RS, i.e., other transmission time windows are idle, then the second access network devices in the one or more first sets can distribute the transmission time windows of the first RIM-RS across the original first RIM-RS transmission time window and other consecutive transmission time windows. In this case, a RIM-RS transmission cycle contains multiple first RIM-RS transmission time windows. This application embodiment does not limit the number of transmission time windows.

[0113] For example, such as Figure 7As shown, assuming there are three first beams in three directions, namely first beam 1, first beam 2, and first beam 3, and a RIM-RS transmission cycle contains three transmission time windows for the first RIM-RS, then within one RIM-RS transmission cycle, the second access network device can sequentially transmit the three first RIM-RSs of the first cell (which can be represented as cell ID-1) through first beam 1, first beam 2, and first beam 3, utilizing the transmission time windows of the first RIM-RS. That is, within one RIM-RS transmission cycle, the second access network device can transmit the first RIM-RS in different beam directions within the transmission time windows of the first RIM-RS. After completing the transmission of the first RIM-RS, the second access network device can continue to transmit the second RIM-RS of the second cell (which can be represented as cell ID-2) through first beam 1, utilizing the transmission time window of the second RIM-RS.

[0114] For example, suppose there are five first beams in five directions, namely first beam 1, first beam 2, first beam 3, first beam 4 and first beam 5, and a RIM-RS transmission cycle contains four transmission time windows of the first RIM-RS. Then, within a RIM-RS transmission cycle, the second access network device can use first beam 1, first beam 2, first beam 3 and first beam 4 to sequentially transmit four first RIM-RS of the first cell (which can be represented as cell ID-1) using the transmission time windows of the first RIM-RS. In the next RIM-RS transmission cycle, the device can use first beam 5 to transmit the fifth first RIM-RS of the first cell.

[0115] In practical applications, when using a beam scanning mechanism to transmit RIM-RS, the first access network device needs to know the second access network device's transmission time window for RIM-RS to ensure that the RIM-RS can be received at all potential transmission locations.

[0116] Specifically, in one embodiment, receiving a reference signal sent by a second access network device associated with the one or more first sets includes:

[0117] Obtain third information, which characterizes the transmission time window and / or transmission period of the RIM-RS in the first time slot;

[0118] Using the third information, fourth information is determined, which characterizes the reception time window and / or reception period of the RIM-RS in the second time slot;

[0119] Using the fourth information, receive RIM-RS sent by a second access network device associated with one or more first sets.

[0120] The first time slot can be understood as the time slot in which the RIM-RS transmission time window is located, and the second time slot can be understood as the time slot in which the RIM-RS reception time window is located.

[0121] In practical applications, since the distance between the first access network device and the second access network device is usually close (e.g., no more than 1-2 OFDM symbols), the first access network device can align the receiving time window of the RIM-RS with the transmitting time window of the RIM-RS (also known as alignment), and receive the RIM-RS through the receiving time window of the RIM-RS.

[0122] For example, such as Figure 8 As shown, assuming that the first time slot and the second time slot are both time slot 7 in the radio frame, the second access network device can transmit the first RIM-RS of the first cell in symbols 8 and 9 of time slot 7 (which can also be understood as S subframe), while the first access network device can receive the first RIM-RS in symbols 9, 10 and 11 of time slot 7.

[0123] In practical applications, during the reception of the RIM-RS, the first access network device can perform matched filtering reception of the RIM-RS sequence. Since the RIM-RS occupies two OFDM symbol lengths and has a time-domain cyclic shift structure, the first access network device can ensure the reception of a time-domain component of the RIM-RS within a one-OFDM symbol length reception time window. This time-domain component possesses a complete and phase-continuous time-domain sequence. Then, the first access network device can deduce the cell identification information (e.g., cell ID) corresponding to the RIM-RS using resources such as the sequence, time domain, and frequency domain.

[0124] It should be noted that before receiving the RIM-RS, the first access network device can know the mapping relationship between the beam direction of the second access network device performing beam scanning and the time domain resource configuration of beam transmission. In this way, the first access network device can determine the direction of the first beam based on the receiving resources of the RIM-RS, so as to subsequently determine the beam direction associated with cross-time slot interference.

[0125] In practical applications, when the reference signal includes CSI-RS, the relevant transmission mechanism can be adjusted to enable CSI-RS transmission.

[0126] Specifically, in one embodiment, the reference signal includes CSI-RS, with different CSI-RS corresponding to different directions of the second beam, which is used to transmit the CSI-RS.

[0127] The CSI-RS has the function of interference measurement; when different CSI-RS are sent through the second beam in different directions (which can also be understood as beamforming), it can well simulate the cross-slot interference of the sensing time slot when the second access network device sends downlink services.

[0128] In practical applications, during the transmission of the CSI-RS, the second access network device can use the cell identification information (e.g., Cell ID) corresponding to the CSI-RS to initialize the first parameter (which can be represented as the Nid parameter) generated by the sequence associated with the CSI-RS (which can be understood as the CSI-RS being generated by the sequence), so that the first parameter is associated with the cell identification information (e.g., Cell ID = Nid), so that the first receiving device can subsequently parse and obtain the cell identification information corresponding to the CSI-RS.

[0129] Here, when the CSI-RS is transmitted using beamforming, the first access network device needs to know the transmission status of the CSI-RS by the second access network device in order to receive the CSI-RS and measure interference.

[0130] Specifically, in one embodiment, receiving a reference signal sent by a second access network device associated with the one or more first sets includes:

[0131] The fifth piece of information is obtained, which characterizes the transmission time window and / or transmission period of CSI-RS in the third time slot;

[0132] Using the fifth information, the sixth information is determined, which characterizes the reception time window and / or reception period of CSI-RS in the fourth time slot, which is capable of receiving sensing signals;

[0133] Using the sixth information, receive CSI-RS sent by a second access network device associated with one or more first sets.

[0134] The third time slot can be understood as the time slot where the CSI-RS transmission time window is located, and the fourth time slot can be understood as the time slot where the CSI-RS reception time window is located. The fourth time slot can be called the sensing time slot, which can at least receive sensing signals, such as time slot 0 or time slot 5.

[0135] In practical applications, the first access network device can obtain the fifth information from the network device; that is, the second access network device can report the fifth information to the network device, and the network device can provide the fifth information to the first access network device; wherein, the fifth information may also include one or more of the following (at least one): cell identification information associated with the second access network device, the relationship between the cell identification information and the first parameter (which can also be understood as a rule), and the transmission order of the second access network device. This application embodiment does not limit this.

[0136] Here, based on the fifth information, the first access network device can determine the sixth information to know how to receive the CSI-RS; wherein, the CSI-RS can be received through the fourth time slot.

[0137] In practical applications, the first access network device can adjust the transmission mode of the fourth time slot before receiving the CSI-RS.

[0138] Based on this, in one embodiment, the method may further include:

[0139] The transmission mode of the fourth time slot is adjusted from the first mode to the second mode. The first mode is used to send and receive sensing signals, and the second mode is used to receive sensing signals.

[0140] The first mode can be understood as the transmission and reception mode of the sensing signal, and the second mode can be understood as the reception mode of the sensing signal.

[0141] In practical applications, using the adjusted fourth time slot, the first access network device can receive the CSI-RS and determine the first parameter generated by the sequence associated with the received CSI-RS; when the fifth information includes the relationship between cell identification information and the first parameter, the first access network device can use the relationship between cell identification information and the first parameter to obtain the cell identification information corresponding to the received CSI-RS.

[0142] It should be noted that before receiving the CSI-RS, the first access network device can know the mapping relationship between the beam direction of the second access network device performing beam scanning and the time domain resource configuration of beam transmission. In this way, the first access network device can determine the direction of the second beam based on the receiving resources of the CSI-RS, so as to subsequently determine the beam direction associated with cross-time slot interference.

[0143] In practical applications, after receiving the reference signal, the first access network device can determine the first information, which may include the interference intensity of the reference signal.

[0144] Here, in step 303, the first access network device can use the first information to determine the correspondence between the second access network device that transmits the reference signal, the beam direction (such as the direction of the first beam or the direction of the second beam) corresponding to the second access network device, and the interference intensity; based on the determined correspondence, the second access network device that mainly causes cross-time slot interference and the corresponding beam direction are determined, thereby obtaining the second information. The second information can be used as the basis for subsequent interference avoidance adjustments. In this way, the second access network device and / or beam direction that need to be interfered with can be determined, and the expected interference intensity backoff can also be determined.

[0145] For example, the first access network device can sort the interference intensities of different beam directions corresponding to the second access network device transmitting the reference signal from large to small based on a determined correspondence, and obtain the sorted interference intensities; using a preset second threshold (which can be represented as N%, and the value can be set as needed, such as 40%, 70%, etc.), the first N% of the interference intensities are selected from the sorted interference intensities, and the beam direction and the second access network device corresponding to the selected interference intensities are determined, thereby obtaining the second information.

[0146] For example, the first access network device can use a preset third threshold (which can be understood as a level threshold, and the value can be set as needed) and a determined correspondence to select the interference intensity whose value meets the third threshold, and determine the beam direction and the second access network device corresponding to the selected interference intensity, thereby obtaining the second information.

[0147] Accordingly, embodiments of this application also provide a signal processing method applied to a second access network device, such as... Figure 9 As shown, it includes:

[0148] Step 901: Send a reference signal to the first access network device. The reference signal is used by the second access network device to measure the cross-slot interference of the first access network device. The second access network device is associated with one or more first sets. Each first set contains one or more second access network devices. The second access network device has communication functions. The first access network device has both communication functions and sensing functions.

[0149] In practical applications, before step 901, if the first access network device determines that the second access network device is involved in cross-time slot interference, the second access network device can receive the tenth information sent by the network device to know its own second set and the resources for sending communication signals, so as to send the communication signals subsequently.

[0150] Based on this, in one embodiment, the method may further include:

[0151] Step 900: Send a communication signal to the first access network device, the second access network device being associated with one or more second sets, each second set containing one or more second access network devices, the communication signal being used to determine seventh information, the seventh information being characterized by the measurement result of the communication signal, the seventh information being used to select the one or more first sets from the one or more second sets.

[0152] The signal processing method provided in this application embodiment involves a first access network device selecting one or more first sets, each first set containing one or more second access network devices. The second access network devices have communication functions, and the first access network device has both communication and sensing functions. The method receives reference signals sent by the second access network devices associated with the one or more first sets and determines first information. The reference signals are used by the second access network devices to measure cross-time slot interference with the first access network devices. The first information characterizes the measurement result of the reference signals. Using the first information, second information is determined. The second information characterizes the beam direction corresponding to the second access network device associated with the cross-time slot interference. The technical solution provided in this application embodiment involves a sensing base station (i.e., the first access network device) screening communication base stations (i.e., the second access network devices), receiving and measuring reference signals sent by the screened communication base stations to determine the main communication base stations and beam transmission directions causing cross-time slot interference. This provides a basis for subsequent interference avoidance measures, thus avoiding cross-time slot interference between communication base stations and sensing base stations and ensuring the sensing performance indicators of the sensing base station.

[0153] The following section provides a more detailed description of this application with reference to application examples.

[0154] In the application examples of this application, a detection scheme for cross-slot interference sources and interference intensity is proposed; specifically, in the face of cross-slot interference caused by communication signals affecting the sensing time slots in a sensor-integrated system, such as... Figure 10 As shown, firstly, the sensing base station (i.e., the first access network device mentioned above) in the 5G network architecture initiates cross-time slot interference detection; secondly, the sensing base station determines the range of communication base stations for cross-time slot interference detection; then, the sensing base station and the communication base stations (i.e., the second access network device mentioned above) within the range of the communication base stations conduct signal transmission and reception for cross-time slot interference detection; finally, the sensing base station detects and determines the strongest interference source and interference intensity.

[0155] Here, the detection process for cross-time slot interference sources and interference intensity includes the following steps:

[0156] Step 1: During the deployment phase, the sensing base station determines to initiate cross-time slot interference detection.

[0157] Step 2: The sensing base station uses the first OAM management plane message (i.e. the eighth information mentioned above) to divide the communication base station into multiple base station sets (i.e. the second set mentioned above) according to the distance of the communication base station from the sensing service deployment area, thereby determining the range of communication base stations for cross-time slot interference detection (i.e. the first set mentioned above).

[0158] Here, OAM divides the communication base stations within a 5km radius of the sensing service deployment area into set1, the communication base stations within a 10km radius into set2, and the communication base stations within a 20km radius into set3, thus obtaining three base station sets. Next, OAM sends second management plane messages to the communication base stations in the three base station sets, configuring the communication signal transmission settings (i.e., the time window and period for transmitting communication signals) and the indexes of the different base station sets for each base station. Simultaneously, OAM informs the sensing base stations of the communication signal transmission configuration.

[0159] Then, based on the transmission configuration of the communication signal, the communication base station transmits the communication signal sequentially in the downlink time slot corresponding to the sensing time slot; among them, communication base stations within the same base station set transmit communication signals simultaneously. The sensing base station converts the transmission mode of the sensing signal in the sensing time slot to the receiving mode, continuously receiving and detecting the received signal strength in the corresponding time slot (P1 for set1, P2 for set2, and P3 for set3, respectively) (i.e., the seventh information mentioned above); since the pre-set threshold P (i.e., the first threshold mentioned above) satisfies P1>P>P2>P3, the sensing base station selects set1 as the range of communication base stations for cross-time slot interference detection.

[0160] Step 3: During the cross-slot interference measurement process, the communication base stations in set1 transmit RIM-RS on the corresponding resources according to the beam scanning method and the corresponding time domain, frequency domain, and code domain mapping relationship. Correspondingly, the inductive base station adjusts time slot 7 to the receiving time slot (i.e., the second time slot mentioned above) and performs matched filtering reception on the RIM-RS, thereby obtaining the interference intensity (i.e., the first information mentioned above) of different beam directions under each communication base station in set1; wherein, the interference intensity corresponding to set1 is shown in Table 1.

[0161] Cell ID Beam direction Interference intensity AAAA Beam2 -50dBm BBBB Beam1 -70dBm AAAA Beam1 -100dBm … … …

[0162] Table 1

[0163] Step 4: Based on the set absolute threshold of interference intensity -75dBm (i.e. the third threshold mentioned above), the sensing base station selects the beam direction of beam2 of Cell ID AAAA and the beam direction of beam1 of BBBB as the target base station and the beam for interference avoidance adjustment (i.e. the second information mentioned above) for subsequent interference avoidance adjustment, and considers power backoff of 25dB and 5dB for beam2 of AAAA base station and beam1 of BBBB base station respectively.

[0164] In the application example of this application, the sensing base station detects the sources and intensity of cross-time slot interference. This helps operators pinpoint the primary communication base station causing cross-time slot interference and the beam transmission direction causing the interference. This allows operators to maintain normal downlink data transmission for communication base stations that are not the main interference factors, while implementing subsequent interference avoidance adjustments for the main interference factors, such as beam direction adjustment and transmission power backoff, provided that the sensing accuracy is tolerable. Therefore, the above solution forms the technical foundation for achieving sensing performance and capability requirements while minimizing communication system performance loss.

[0165] To implement the method of the embodiments of this application, the embodiments of this application also provide a signal processing device, disposed on a first access network device, such as... Figure 11 As shown, the device includes:

[0166] Selection unit 1101 is used to select one or more first sets, each first set containing one or more second access network devices, the second access network devices having communication functions, and the first access network devices having both communication and sensing functions.

[0167] The first receiving unit 1102 is configured to receive a reference signal sent by a second access network device associated with the one or more first sets, and determine first information, wherein the reference signal is used for cross-slot interference measurement of the second access network device to the first access network device, and the first information characterizes the measurement result of the reference signal;

[0168] The determining unit 1103 is used to determine second information using the first information, wherein the second information characterizes the beam direction of the second access network device and / or the second access network device associated with cross-time slot interference.

[0169] In one embodiment, the determining unit 1103 is configured to acquire third information, the third information representing the transmission time window and / or transmission period of the RIM-RS in the first time slot; and use the third information to determine fourth information, the fourth information representing the reception time window and / or reception period of the RIM-RS in the second time slot.

[0170] The first receiving unit 1102 is used to acquire third information, which represents the transmission time window and / or transmission period of the RIM-RS in the first time slot;

[0171] In one embodiment, the determining unit 1103 is configured to acquire fifth information, which characterizes the transmission time window and / or transmission period of CSI-RS in the third time slot; and use the fifth information to determine sixth information, which characterizes the reception time window and / or reception period of CSI-RS in the fourth time slot, wherein the fourth time slot is capable of receiving sensing signals.

[0172] The first receiving unit 1102 is used to receive CSI-RS sent by a second access network device associated with one or more first sets using the sixth information.

[0173] In one embodiment, the determining unit 1103 is further configured to adjust the transmission mode of the fourth time slot from a first mode to a second mode, wherein the first mode is used to send and receive sensing signals, and the second mode is used to receive sensing signals.

[0174] In one embodiment, the first receiving unit 1102 is configured to receive communication signals sent by second access network devices associated with one or more second sets, and determine seventh information, the seventh information representing the measurement result of the communication signals, each second set containing one or more second access network devices;

[0175] The selection unit 1101 is used to select one or more first sets from the one or second set using the seventh information.

[0176] In one embodiment, the determining unit 1103 is further configured to send eighth information to the network device, the eighth information being used to request the generation of the one or more second sets, the one or more second sets being generated based on ninth information, the ninth information including state-related information of the first access network device and one or more second access network devices, the network device being at least configured to configure transmission resources for communication signals for the one or more second sets.

[0177] In practical applications, the selection unit 1101 can be implemented by a processor in the signal processing device; the first receiving unit 1102 can be implemented by a communication interface in the signal processing device; and the determination unit 1103 can be implemented by a processor in the signal processing device combined with a communication interface.

[0178] To implement the method of the embodiments of this application, the embodiments of this application also provide a signal processing device, disposed on a second access network device, such as... Figure 12 As shown, the device includes:

[0179] The first transmitting unit 1201 is used to transmit a reference signal to a first access network device. The reference signal is used for cross-slot interference measurement of the first access network device by the second access network device. The second access network device is associated with one or more first sets, and each first set contains one or more second access network devices. The second access network device has communication functions, and the first access network device has both communication functions and sensing functions.

[0180] In one embodiment, the device may further include: a second transmitting unit 1202; wherein,

[0181] The second transmitting unit 1202 is used to transmit a communication signal to the first access network device, the second access network device being associated with one or more second sets, each second set containing one or more second access network devices, the communication signal being used to determine seventh information, the seventh information being characterized by the measurement result of the communication signal, the seventh information being used to select the one or more first sets from the one or more second sets.

[0182] In practical applications, the first transmitting unit 1201 and the second transmitting unit 1202 can be implemented by the communication interface in the signal processing device.

[0183] It should be noted that the signal processing device provided in the above embodiments is only illustrated by the division of the above program modules. In practical applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device can be divided into different program modules to complete all or part of the processing described above. In addition, the signal processing device and the signal processing method embodiments provided in the above embodiments belong to the same concept, and the specific implementation process can be found in the method embodiments, which will not be repeated here.

[0184] Based on the hardware implementation of the above program modules, and in order to implement the method on the first access network device side of the embodiments of this application, the embodiments of this application also provide a first access network device, such as... Figure 13 As shown, the first access network device 1300 includes:

[0185] The first communication interface 1301 is capable of exchanging information with the second access network device;

[0186] The first processor 1302 is connected to the first communication interface 1301 to enable information interaction with the second access network device, and when running a computer program, executes the methods provided by one or more technical solutions on the first access network device side.

[0187] The computer program is stored in the first memory 1303.

[0188] Specifically, the first processor 1302 is configured to select one or more first sets, each first set containing one or more second access network devices, the second access network devices having communication functions, and the first access network devices having both communication and sensing functions; receive reference signals sent by the second access network devices associated with the one or more first sets through the first communication interface 1301, and determine first information, the reference signals being used by the second access network devices to measure cross-slot interference of the first access network devices, the first information representing the measurement result of the reference signals; and use the first information to determine second information, the second information representing the second access network devices associated with cross-slot interference and / or the beam direction corresponding to the second access network devices.

[0189] In one embodiment, the first processor 1302 is configured to acquire third information through the first communication interface 1301, the third information representing the transmission time window and / or transmission period of the RIM-RS in the first time slot; use the third information to determine fourth information, the fourth information representing the reception time window and / or reception period of the RIM-RS in the second time slot; and use the fourth information to receive RIM-RS transmitted by a second access network device associated with the one or more first sets through the first communication interface 1301.

[0190] In one embodiment, the first processor 1302 is configured to acquire fifth information through the first communication interface 1301, the fifth information representing the transmission time window and / or transmission period of CSI-RS in a third time slot; use the fifth information to determine sixth information, the sixth information representing the reception time window and / or reception period of CSI-RS in a fourth time slot, the fourth time slot being capable of receiving sensing signals; and use the sixth information to receive CSI-RS transmitted by a second access network device associated with the one or more first sets through the first communication interface 1301.

[0191] In one embodiment, the first processor 1302 is further configured to adjust the transmission mode of the fourth time slot from a first mode to a second mode, wherein the first mode is used to send and receive sensing signals, and the second mode is used to receive sensing signals.

[0192] In one embodiment, the first processor 1302 is configured to receive communication signals sent by second access network devices associated with one or more second sets via the first communication interface 1301, and determine seventh information, the seventh information representing the measurement result of the communication signals, each second set containing one or more second access network devices; and use the seventh information to select the one or more first sets from the one or second sets.

[0193] In one embodiment, the first communication interface 1301 is further configured to send eighth information to the network device, the eighth information being used to request the generation of the one or more second sets, the one or more second sets being generated based on ninth information, the ninth information including state-related information of the first access network device and the one or more second access network devices, the network device being at least configured to configure transmission resources for communication signals for the one or more second sets.

[0194] It should be noted that the specific processing procedures of the first communication interface 1301 and the first processor 1302 can be understood by referring to the above method.

[0195] Of course, in practical applications, the various components in the first access network device 1300 are coupled together through the bus system 1304. It can be understood that the bus system 1304 is used to implement communication between these components. In addition to a data bus, the bus system 1304 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in... Figure 13 The general designated all buses as Bus System 1304.

[0196] The first memory 1303 in this embodiment is used to store various types of data to support the operation of the first access network device 1300. Examples of such data include any computer program used to operate on the first access network device 1300.

[0197] The methods disclosed in the above embodiments of this application can be applied to the first processor 1302, or implemented by the first processor 1302. The first processor 1302 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware or by instructions in the form of software in the first processor 1302. The first processor 1302 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The first processor 1302 can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this application can be directly reflected as being executed by a hardware decoding processor, or being executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium, which is located in the first memory 1303. The first processor 1302 reads the information in the first memory 1303 and completes the steps of the aforementioned method in combination with its hardware.

[0198] In an exemplary embodiment, the first access network device 1300 may be implemented by one or more application-specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers (MCUs), microprocessors, or other electronic components to perform the aforementioned method.

[0199] Based on the hardware implementation of the above program modules, and in order to implement the method on the second access network device side of the embodiments of this application, the embodiments of this application also provide a second access network device, such as... Figure 14 As shown, the second access network device 1400 includes:

[0200] The second communication interface 1401 is capable of exchanging information with the first access network device;

[0201] The second processor 1402 is connected to the second communication interface 1401 to enable information interaction with the first access network device and to execute the methods provided by one or more technical solutions on the second access network device side when running a computer program.

[0202] The computer program is stored in the second memory 1403.

[0203] Specifically, the second communication interface 1401 is used to send a reference signal to the first access network device. The reference signal is used for the second access network device to measure the cross-time slot interference of the first access network device. The second access network device is associated with one or more first sets, and each first set contains one or more second access network devices. The second access network device has communication functions, and the first access network device has both communication functions and sensing functions.

[0204] In one embodiment, the second communication interface 1401 is further configured to send a communication signal to the first access network device, the second access network device being associated with one or more second sets, each second set containing one or more second access network devices, the communication signal being used to determine seventh information, the seventh information characterizing the measurement result of the communication signal, the seventh information being used to select the one or more first sets from the one or more second sets.

[0205] It should be noted that the specific processing procedure of the second communication interface 1401 can be understood by referring to the above method.

[0206] Of course, in practical applications, the various components in the second access network device 1400 are coupled together through the bus system 1404. It can be understood that the bus system 1404 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 1404 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, in... Figure 14 The general designated all buses as Bus System 1404.

[0207] The second memory 1403 in this embodiment is used to store various types of data to support the operation of the second access network device 1400. Examples of such data include any computer program used to operate on the second access network device 1400.

[0208] The methods disclosed in the embodiments of this application can be applied to, or implemented by, the second processor 1402. The second processor 1402 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by the integrated logic circuitry of the hardware or by instructions in the form of software within the second processor 1402. The second processor 1402 may be a general-purpose processor, a DSP, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The second processor 1402 can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this application can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium, specifically a second memory 1403. The second processor 1402 reads information from the second memory 1403 and, in conjunction with its hardware, completes the steps of the aforementioned method.

[0209] In an exemplary embodiment, the second access network device 1400 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, microprocessors, or other electronic components to perform the aforementioned method.

[0210] It is understood that the memories (first memory 1303, second memory 1403) in the embodiments of this application can be volatile memory or non-volatile memory, or both. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), magnetic random access memory (FRAM), flash memory, magnetic surface memory, optical disc, or compact disc read-only memory (CD-ROM); magnetic surface memory can be disk storage or magnetic tape storage. Volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), SyncLink Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM).The memories described in the embodiments of this application are intended to include, but are not limited to, these and any other suitable types of memories.

[0211] To implement the method provided in the embodiments of this application, the embodiments of this application also provide a signal processing system, such as... Figure 15 As shown, the system includes: a first access network device 1501 and a second access network device 1502.

[0212] It should be noted that the specific processing procedures of the first access network device 1501 and the second access network device 1502 have been detailed above and will not be repeated here.

[0213] In an exemplary embodiment, this application also provides a storage medium, namely a computer storage medium, specifically a computer-readable storage medium. For example, it may include a first memory 1303 storing a computer program, which can be executed by a first processor 1302 of a first access network device 1300 to complete the steps described in the aforementioned first access network device-side method. Another example is a second memory 1403 storing a computer program, which can be executed by a second processor 1402 of a second access network device 1400 to complete the steps described in the aforementioned second access network device-side method. The computer-readable storage medium may be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disc, or CD-ROM.

[0214] In an exemplary embodiment, this application also provides a computer program product, including a computer program that can be executed by a first processor 1302 of a first access network device 1300 to complete the steps of the aforementioned first access network device-side method, or the computer program can be executed by a second processor 1402 of a second access network device 1400 to complete the steps of the aforementioned second access network device-side method.

[0215] It should be noted that terms such as "first" and "second" are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0216] Furthermore, the technical solutions described in the embodiments of this application can be combined arbitrarily without conflict.

[0217] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of protection of this application.

Claims

1. A signal processing method, characterized in that, Applied to first access network equipment, including: Select one or more first sets, each first set containing one or more second access network devices, the second access network devices having communication functions, and the first access network devices having both communication and sensing functions; Receive a reference signal sent by a second access network device associated with one or more first sets, and determine first information, wherein the reference signal is used for cross-slot interference measurement of the first access network device by the second access network device, and the first information characterizes the measurement result of the reference signal; Using the first information, second information is determined, wherein the second information characterizes the beam direction of the second access network device and / or the second access network device associated with cross-time slot interference.

2. The method according to claim 1, characterized in that, The reference signal includes a remote interference management reference signal (RIM-RS), and different RIM-RS associated with the same cell correspond to different directions of a first beam, which is used to transmit the RIM-RS.

3. The method according to claim 2, characterized in that, The RIM-RS includes a first RIM-RS corresponding to a first cell and a second RIM-RS corresponding to a second cell; If, during a RIM-RS transmission cycle, a transmission time window other than the transmission time window of the first RIM-RS is used to transmit the second RIM-RS, then a RIM-RS transmission cycle includes a transmission time window of the first RIM-RS. If, within a RIM-RS transmission cycle, other than the transmission time window of the first RIM-RS, can be used to transmit the first RIM-RS, then a RIM-RS transmission cycle contains multiple transmission time windows of the first RIM-RS.

4. The method according to claim 2, characterized in that, The receiving of reference signals sent by second access network devices associated with the one or more first sets includes: Obtain third information, which characterizes the transmission time window and / or transmission period of the RIM-RS in the first time slot; Using the third information, fourth information is determined, which characterizes the reception time window and / or reception period of the RIM-RS in the second time slot; Using the fourth information, receive RIM-RS sent by a second access network device associated with one or more first sets.

5. The method according to claim 1, characterized in that, The reference signal includes channel state information - reference signal CSI-RS. Different CSI-RS correspond to different directions of the second beam, which is used to transmit the CSI-RS.

6. The method according to claim 5, characterized in that, The receiving of reference signals sent by second access network devices associated with the one or more first sets includes: The fifth piece of information is obtained, which characterizes the transmission time window and / or transmission period of CSI-RS in the third time slot; Using the fifth information, the sixth information is determined, which characterizes the reception time window and / or reception period of CSI-RS in the fourth time slot, which is capable of receiving sensing signals; Using the sixth information, receive CSI-RS sent by a second access network device associated with one or more first sets.

7. The method according to claim 6, characterized in that, The method further includes: The transmission mode of the fourth time slot is adjusted from the first mode to the second mode. The first mode is used to send and receive sensing signals, and the second mode is used to receive sensing signals.

8. The method according to any one of claims 1 to 7, characterized in that, The selection of one or more first sets includes: Receive communication signals sent by second access network devices associated with one or more second sets, and determine seventh information, the seventh information characterizing the measurement result of the communication signals, each second set containing one or more second access network devices; Using the seventh information, select one or more of the first sets from the one or second set.

9. The method according to claim 8, characterized in that, The method further includes: The network device sends an eighth message, which is used to request the generation of the one or more second sets. The one or more second sets are generated based on a ninth message, which contains state-related information of the first access network device and the one or more second access network devices. The network device is at least used to configure transmission resources for communication signals for the one or more second sets.

10. A signal processing method, characterized in that, Applied to second access network equipment, including: A reference signal is sent to a first access network device. The reference signal is used by the second access network device to measure cross-slot interference of the first access network device. The second access network device is associated with one or more first sets. Each first set contains one or more second access network devices. The second access network device has communication functions. The first access network device has both communication functions and sensing functions.

11. The method according to claim 10, characterized in that, The reference signal includes RIM-RS, and different RIM-RS associated with the same cell correspond to different directions of the first beam, which is used to transmit the RIM-RS.

12. The method according to claim 11, characterized in that, The RIM-RS includes a first RIM-RS corresponding to a first cell and a second RIM-RS corresponding to a second cell; If, during a RIM-RS transmission cycle, a transmission time window other than the transmission time window of the first RIM-RS is used to transmit the second RIM-RS, then a RIM-RS transmission cycle includes a transmission time window of the first RIM-RS. If, within a RIM-RS transmission cycle, other than the transmission time window of the first RIM-RS, can be used to transmit the first RIM-RS, then a RIM-RS transmission cycle contains multiple transmission time windows of the first RIM-RS.

13. The method according to claim 10, characterized in that, The reference signal includes CSI-RS, and different CSI-RS correspond to different directions of the second beam, which is used to transmit the CSI-RS.

14. The method according to claim 10, characterized in that, The method further includes: A communication signal is sent to the first access network device, the second access network device being associated with one or more second sets, each second set containing one or more second access network devices, the communication signal being used to determine seventh information, the seventh information being characterized as a measurement result of the communication signal, the seventh information being used to select the one or more first sets from the one or more second sets.

15. A signal processing apparatus, characterized in that, The first access network device includes: The selection unit is used to select one or more first sets, each first set containing one or more second access network devices, the second access network devices having communication functions, and the first access network devices having both communication and sensing functions. A first receiving unit is configured to receive a reference signal sent by a second access network device associated with one or more first sets, and determine first information, wherein the reference signal is used for cross-slot interference measurement of the first access network device by the second access network device, and the first information characterizes the measurement result of the reference signal; The determining unit is used to determine second information using the first information, wherein the second information characterizes the beam direction of the second access network device and / or the second access network device associated with cross-time slot interference.

16. A signal processing apparatus, characterized in that, The second access network device includes: The first transmitting unit is configured to transmit a reference signal to a first access network device. The reference signal is used for cross-slot interference measurement of the first access network device by the second access network device. The second access network device is associated with one or more first sets, and each first set contains one or more second access network devices. The second access network device has communication functions, and the first access network device has both communication and sensing functions.

17. A first access network device, characterized in that, include: A first processor and a first communication interface; wherein... The first processor is configured to select one or more first sets, each first set containing one or more second access network devices, the second access network devices having communication functions, and the first access network devices having both communication and sensing functions. The system receives reference signals sent by second access network devices associated with one or more first sets through the first communication interface and determines first information, wherein the reference signals are used by the second access network devices to measure cross-slot interference of the first access network devices, and the first information characterizes the measurement result of the reference signals; using the first information, the system determines second information, wherein the second information characterizes the beam direction of the second access network devices associated with cross-slot interference and / or the beam direction corresponding to the second access network devices.

18. A second access network device, characterized in that, include: A second processor and a second communication interface; wherein... The second communication interface is used to send a reference signal to the first access network device. The reference signal is used for the second access network device to measure the cross-time slot interference of the first access network device. The second access network device is associated with one or more first sets, and each first set contains one or more second access network devices. The second access network device has communication functions, and the first access network device has both communication and sensing functions.

19. A first access network device, characterized in that, include: A first processor and a first memory for storing computer programs capable of running on the processor. Wherein, when the first processor is used to run the computer program, it performs the steps of the method according to any one of claims 1 to 9.

20. A second access network device, characterized in that, include: A second processor and a second memory for storing computer programs that can run on the processor. Wherein, when the second processor is used to run the computer program, it performs the steps of the method according to any one of claims 10 to 14.

21. A storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 9, or the steps of the method according to any one of claims 10 to 14.

22. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 9, or the steps of the method according to any one of claims 10 to 14.

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