Communication method, device and system

Abstract

The invention provides a communication method, device and system. The method comprises the steps that first information is received, the first information is used for indicating a first isolation degree and / or a first threshold value, the first isolation degree is the isolation degree between a first port and a second port, and the first threshold value is related to a start control value of analog automatic gain control (AAGC); sending second information, wherein the second information is used for indicating attenuation of a second signal; receiving the attenuated second signal; and performing sensing processing according to the attenuated second signal. In the technical scheme, the REC indicates the RE to attenuate the signals received in the time period when the antenna transmitting and receiving array planes work at the same time, so that the influence of same-frequency interference generated by leakage of the transmitted signals on a receiving end can be reduced, and the quality of perception and subsequent communication is improved.

Description

Technical Field

[0001] This application relates to the field of communications, and more specifically, to a communication method, apparatus, and system. Background Technology

[0002] With the evolution of communication systems, communication and sensing functions can complement each other within a single system, achieving Integrated Sensing and Communication (ISAC). However, in time-division multiplexing scenarios for communication and sensing, there are situations where sensing transceiver arrays operate simultaneously. This can lead to leakage of sensing transmission signals into the receiving channel, causing interference to the receiver and reducing the quality of sensing and subsequent communication.

[0003] Therefore, how to reduce the impact of interference on sensing and communication is an urgent problem to be solved. Summary of the Invention

[0004] This application provides a communication method that can attenuate received signals in real time, thereby reducing the impact of interference on sensing and communication.

[0005] In a first aspect, a communication method is provided. This method can be executed by the radio equipment (RE) of a first device (which, as a sensing device, may be a network device), or by components of the RE (e.g., chips or circuits). This application does not limit the scope of the method.

[0006] The method includes: sending first information, the first information indicating a first isolation degree and / or a first threshold value, the first isolation degree being the isolation degree between a first port and a second port, the first threshold value being related to the start-up value of analog automatic gain control (AAGC); sending a first signal on a first symbol through the first port; receiving a second signal on the first symbol through a second port, the second signal including an echo signal of the first signal and / or an interference signal corresponding to the first signal; receiving second information, the second information being determined by the first information, the second information indicating attenuation of the second signal; attenuating the second signal according to the second information; and sending the attenuated second signal.

[0007] Optionally, the first port and the second port are located in the same sector of the first device. That is, the interference of the transmitted signal received by the second port is interference from different arrays within a single sector, or it can also be called intra-sector interference.

[0008] Optionally, the first port and the second port are located in different sectors of the first device. That is, the interference of the transmitted signal received by the second port is inter-sector interference.

[0009] Based on the above scheme, RE can attenuate the signal received when the antenna transceiver array is working simultaneously, which can reduce the impact of co-channel interference caused by transmission signal leakage on the receiver and improve the quality of sensing and subsequent communication.

[0010] In conjunction with the first aspect, in some implementations of the first aspect, the second information includes an attenuation value, which is greater than or equal to the difference between the first power and the first threshold value; or, the attenuation value is zero; wherein the first power is determined by the first isolation and / or the transmit power of the first signal.

[0011] It should be understood that the attenuation value is determined based on the first information (first isolation degree and / or first threshold value), but this does not mean that the attenuation value can only be directly related to the first information. The attenuation value can also be related to other intermediate variables determined based on the first information. That is, the attenuation value can also be indirectly related to the first isolation degree and / or the first threshold value, which is not limited in this application.

[0012] Optionally, the second signal may further include the echo signal of the third signal and an interference signal corresponding to the third signal, wherein the third signal is transmitted through the third port. Thus, the first power may also be determined by the transmission power of the third signal and / or the second isolation, where the second isolation is the isolation between the second port and the third port.

[0013] Optionally, the third port belongs to the first device, thus the second port is also subject to inter-sectoral interference; or, the third port belongs to another device different from the first device (as a sensing device, it could be a network device), thus the second port is also subject to inter-site interference.

[0014] In conjunction with the first aspect, in some implementations of the first aspect, when the first power is greater than the first threshold value, the attenuation value is greater than or equal to the difference between the first power and the first threshold value; when the first power is less than or equal to the first threshold value, the attenuation value is zero.

[0015] Based on the above scheme, the signal attenuation magnitude can be determined relatively accurately. If the first power is greater than the first threshold, it indicates that the interference at the second port is sufficient to trigger AAGC. At this point, attenuating the interference to below the first threshold can prevent the interference from directly triggering AAGC, thereby reducing the impact of interference on the second port and improving sensing and subsequent communication quality. If the first power is less than or equal to the first threshold, it indicates that the interference at the second port is insufficient to trigger AAGC, therefore no attenuation processing of the received signal is necessary.

[0016] In conjunction with the first aspect, in some implementations of the first aspect, the second information further includes a decay period, which is related to the first symbol.

[0017] Optionally, the decay period can be the first symbol.

[0018] Based on the above scheme, attenuating the received signal on the first symbol can avoid interference still existing when the attenuation ends due to an excessively short attenuation time, causing AAGC to be initiated, which in turn reduces the sensitivity of the receiver and affects the quality of sensing and subsequent communication; it can also avoid the received signal still attenuating after the sensing period ends due to an excessively long attenuation time, which in turn affects communication.

[0019] In conjunction with the first aspect, in some implementations of the first aspect, the method further includes attenuating the second signal during the attenuation period.

[0020] Secondly, a communication method is provided. This method can be executed by the radio equipment control (REC) inside the wireless base station of the first device (which, as a sensing device, can be a network device), or by components of the REC (such as chips or circuits). This application does not limit the scope of the method.

[0021] The method includes: receiving first information, the first information indicating a first isolation degree and / or a first threshold value, the first isolation degree being the isolation degree between a first port and a second port, the first threshold value being related to the start-up value of analog automatic gain control (AAGC); sending second information, the second information being determined by the first information, the second information indicating attenuation of a second signal; receiving the attenuated second signal; and performing sensing processing based on the attenuated second signal.

[0022] Based on the above scheme, REC instructs radio equipment (RE) to attenuate the signals received during the period when the antenna transceiver arrays are working simultaneously. This can reduce the impact of co-channel interference caused by transmission signal leakage on the receiver and improve the quality of sensing and subsequent communication.

[0023] In conjunction with the second aspect, in some implementations of the second aspect, the second information includes an attenuation value, which is greater than or equal to the difference between the first power and the first threshold value; or, the attenuation value is zero; wherein the first power is determined by the first isolation and / or the transmit power of the first signal, which is transmitted through the first port.

[0024] It should be understood that the attenuation value is determined based on the first information (first isolation degree and / or first threshold value), but this does not mean that the attenuation value can only be directly related to the first information. The attenuation value can also be related to other intermediate variables determined based on the first information. That is, the attenuation value can also be indirectly related to the first isolation degree and / or the first threshold value, which is not limited in this application.

[0025] Optionally, the second signal may further include the echo signal of the third signal and an interference signal corresponding to the third signal, wherein the third signal is transmitted through the third port. Thus, the first power may also be determined by the transmission power of the third signal and / or the second isolation, where the second isolation is the isolation between the second port and the third port.

[0026] In conjunction with the second aspect, in some implementations of the second aspect, when the first power is greater than the first threshold value, the attenuation value is greater than or equal to the difference between the first power and the first threshold value; when the first power is less than or equal to the first threshold value, the attenuation value is zero.

[0027] Based on the above scheme, the signal attenuation magnitude can be determined relatively accurately. If the first power is greater than the first threshold, it indicates that the interference at the second port is sufficient to trigger AAGC. At this point, attenuating the interference to below the first threshold can prevent the interference from directly triggering AAGC, thereby reducing the impact of interference on the second port and improving sensing and subsequent communication quality. If the first power is less than or equal to the first threshold, it indicates that the interference at the second port is insufficient to trigger AAGC, therefore no attenuation processing of the received signal is necessary.

[0028] In conjunction with the second aspect, in some implementations of the second aspect, the second information further includes a decay period, which is related to the first symbol.

[0029] Optionally, the decay period can be the first symbol.

[0030] Based on the above scheme, attenuating the received signal on the first symbol can avoid interference still existing when the attenuation ends due to an excessively short attenuation time, causing AAGC to be initiated, which in turn reduces the sensitivity of the receiver and affects the quality of sensing and subsequent communication; it can also avoid the received signal still attenuating after the sensing period ends due to an excessively long attenuation time, which in turn affects communication.

[0031] Optionally, the attenuation period can also be a sub-period within the first symbol; or, the first symbol can also be a sub-period of the attenuation period. That is, as long as there is an intersection between the attenuation period and the first symbol, the impact of co-channel interference caused by the simultaneous operation of the transceiver array on the receiver can be reduced to a certain extent, thereby improving the quality of sensing and subsequent communication.

[0032] Thirdly, a communication device is provided, which has the functions of implementing the first or second aspect described above. For example, the communication device includes modules, units, or means corresponding to the operations involved in the first or second aspect. These modules, units, or means can be implemented in software, hardware, or a combination of software and hardware. Examples include processing units and transceiver units.

[0033] In one implementation, the transceiver unit can be a transceiver or an input / output interface; the processing unit can be at least one processor. Optionally, the transceiver can be a transceiver circuit. Optionally, the input / output interface can be an input / output circuit.

[0034] In another implementation, the transceiver unit can be an input / output interface, interface circuit, output circuit, input circuit, pin, or related circuit on the chip, chip system, or circuit; the processing unit can be at least one processor, processing circuit, or logic circuit.

[0035] For example, if the communication device is the aforementioned REC or a component of REC (e.g., a chip or circuit), then the communication device includes:

[0036] The processing unit is used to generate second information and perform sensing processing based on the attenuated second signal.

[0037] The transceiver unit is configured to receive first information, which indicates a first isolation degree and / or a first threshold value, wherein the first isolation degree is the isolation degree between a first port and a second port, and the first threshold value is related to the start-up value of analog automatic gain control (AAGC); transmit second information, which indicates attenuation of a second signal; and receive the attenuated second signal.

[0038] For example, if the communication device is the aforementioned RE or a component of RE (e.g., a chip or circuit), then the communication device includes:

[0039] The transceiver unit is configured to transmit first information, which indicates a first isolation degree and / or a first threshold value, wherein the first isolation degree is the isolation degree between a first port and a second port, and the first threshold value is related to the start-up value of analog automatic gain control (AAGC); transmit a first signal on a first symbol through the first port; receive a second signal on the first symbol through the second port, wherein the second signal includes the echo signal of the first signal and / or the interference signal corresponding to the first signal; receive second information, which indicates attenuation of the second signal; and transmit the attenuated second signal.

[0040] The processing unit is used to attenuate the second signal according to the second information.

[0041] Fourthly, a communication device is provided, including a processor coupled to a memory for storing a computer program, the processor for running the computer program, such that the communication device performs a method as described in any possible implementation of the first or second aspect above.

[0042] Fifthly, a computer-readable storage medium is provided that stores program code for execution by a device, the program code including methods for performing any of the implementations of the first or second aspect described above.

[0043] In a sixth aspect, a chip is provided, the chip including a processor and a communication interface, the processor reading instructions stored in a memory through the communication interface and executing the method provided by any implementation of the first or second aspect above.

[0044] Optionally, as one implementation, the chip also includes a memory storing computer programs or instructions, and a processor for executing the computer programs or instructions stored in the memory. When the computer programs or instructions are executed, the processor is used to perform the method provided by any of the implementations of the first or second aspect described above.

[0045] In a seventh aspect, a communication system is provided, including a REC for performing the method provided in the first aspect and an RE for performing the method provided in the second aspect.

[0046] Eighthly, a computer program product containing instructions is provided, which, when run on a computer, causes the computer to perform the method provided by any implementation of the first and second aspects described above. Attached Figure Description

[0047] Figure 1 This is a schematic diagram of the network architecture applicable to embodiments of this application.

[0048] Figure 2 This is a schematic diagram of the resource configuration for communication and sensing services.

[0049] Figure 3 This is a schematic diagram of the working principle of AAGC applicable to the embodiments of this application.

[0050] Figure 4 This is a schematic diagram of a receiver circuit with AAGC function applicable to embodiments of this application.

[0051] Figure 5This is a schematic diagram of a co-channel interference scenario applicable to embodiments of this application.

[0052] Figure 6 This is a schematic diagram of a communication method 600 applicable to an embodiment of this application.

[0053] Figure 7 This is a schematic diagram of an isolation degree determination method 700 applicable to embodiments of this application.

[0054] Figure 8 This is a schematic diagram of the operation of the sensing device applicable to the embodiments of this application.

[0055] Figure 9 This is a schematic diagram of a communication device 900 applicable to an embodiment of this application.

[0056] Figure 10 This is a schematic diagram of the structure of a communication device 1000 applicable to an embodiment of this application.

[0057] Figure 11 This is a schematic diagram of the structure of a chip system 1100 applicable to an embodiment of this application. Detailed Implementation

[0058] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0059] The technical solutions provided in this application can be applied to various communication systems, such as: 5th generation (5G) (or New Radio, NR) mobile communication systems, beyond 5G (B5G) mobile communication systems, Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, and LTE Time Division Duplex (TDD) systems. The technical solutions provided in this application can also be applied to future communication networks. Furthermore, the technical solutions provided in this application can be applied to device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), and Internet of Things (IoT) communication systems or other communication systems.

[0060] The terminal device in this application embodiment is a user-side device with wireless transceiver capabilities. It can be a fixed device, a mobile device, a handheld device (e.g., a mobile phone), a wearable device, an in-vehicle device, or a wireless device (e.g., a communication module, modem, or chip system, etc.) built into the above devices. The terminal device is used to connect people, things, machines, etc., and can be widely used in various scenarios, such as: cellular communication, device-to-device (D2D) communication, V2X communication, machine-to-machine / machine-type communications (M2M / MTC) communication, Internet of Things, virtual reality (VR), augmented reality (AR), industrial control, self-driving, remote medical, smart grid, smart furniture, smart office, smart wearables, smart transportation, smart city, drones, robots, etc. For example, a terminal device can be a handheld terminal in cellular communication, a communication device in D2D, an IoT device in MTC, a surveillance camera in intelligent transportation and smart cities, or a communication device on a drone, etc. Terminal devices are sometimes referred to as user equipment (UE), user terminal, user device, user unit, user station, terminal, access terminal, access station, UE station, remote station, mobile device, or wireless communication device, etc. In the embodiments of this application, the device used to implement the functions of the terminal device can be the terminal device itself, or it can be a device capable of supporting the terminal device in implementing that function, such as a chip system or a combination of devices or components capable of implementing the functions of the terminal device. This device can be installed in the terminal device.

[0061] The network device in this application embodiment can be any communication device with wireless transceiver capabilities used for communicating with terminal devices. The network device can be a device in a radio access network (RAN) that provides wireless communication capabilities to terminal devices, referred to as RAN equipment. For example, the network device can be a base station, an evolved NodeB (eNodeB), a next-generation NodeB (gNB) in a 5G mobile communication system, a 3GPP subsequent evolution base station, a transmission reception point (TRP), an access node in a WiFi system, a wireless relay node, a wireless backhaul node, etc. In communication systems employing different radio access technologies (RATs), the name of the device with base station functionality may differ. For example, in an LTE system, it may be called an eNB or eNodeB, and in a 5G or NR system, it may be called a gNB. This application does not limit the specific name of the base station. The network device can include one or more co-located or non-co-located transmission and reception points. For example, a network device may include one or more central units (CUs), one or more distributed units (DUs), or one or more CUs and one or more DUs. Exemplarily, the functionality of a CU can be implemented by a single entity or different entities. For instance, the functionality of a CU can be further divided, separating the control plane and user plane and implementing them through different entities, namely a control plane CU entity (i.e., CU-CP entity) and a user plane CU entity (i.e., CU-UP entity). The CU-CP and CU-UP entities can be coupled with DUs to jointly complete the functions of the access network device. In this way, some functions of a radio access network device can be implemented through multiple network function entities. These network function entities can be network elements in hardware devices, software functions running on dedicated hardware, or virtualized functions instantiated on a platform (e.g., a cloud platform). As another example, in vehicle-to-everything (V2X) technology, the access network device can be a roadside unit (RSU). Multiple access network devices in a communication system can be base stations of the same type or different types. Base stations can communicate with terminal devices directly or through relay stations. In this embodiment of the application, the device for implementing the function of the network device can be the network device itself, or it can be a device that can support the network device to implement the function, such as a chip system or a combination device or component that can implement the function of the access network device. The device can be installed in the network device.In different systems, CU (or CU-CP and CU-UP), DU, or RU may have different names, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called O-CU (open CU), DU can also be called O-DU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, and RU can also be called O-RU. For ease of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples. In the embodiments of this application, the chip system can be composed of chips or may include chips and other discrete devices. In the embodiments of this application, a network device is used as an example to describe the technical solution.

[0062] The network device in this application embodiment is a device with sensing function, which can send sensing signals and receive and process the echo signals of the sensed target.

[0063] The sensed target can refer to various tangible objects on the ground that can be sensed, such as mountains, forests, or buildings, and can also include movable objects such as vehicles, drones, pedestrians, and terminal devices. The sensed target is a target that can be sensed by a network device with sensing capabilities, and this target can feed back electromagnetic waves to the network device. The sensed target can also be called a detected target, a sensed object, a sensed device, etc., and this application embodiment does not limit the terminology.

[0064] The sensing signal can refer to a signal used to sense or detect a target, or in other words, a signal used to sense or detect environmental information. For example, a sensing signal is an electromagnetic wave sent by a network device to sense environmental information. Sensing signals can also be called radar signals, radar sensing signals, detection signals, radar detection signals, environmental sensing signals, etc., and are not limited to these terms in this application.

[0065] Network devices and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can also be deployed in the air on airplanes, balloons, and satellites. This application does not limit the scenario in which the network devices and terminal devices are located.

[0066] Furthermore, various aspects or features of this application can be implemented as methods, apparatus, or articles of manufacture using standard programming and / or engineering techniques. The term "article of manufacture" as used herein encompasses a computer program accessible from any computer-readable device, carrier, or medium. For example, computer-readable media include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes), optical discs (e.g., compact discs (CDs), digital versatile discs (DVDs), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROMs), cards, sticks, or key drives, etc.). Additionally, the various storage media described herein can represent one or more devices and / or other machine-readable media for storing information. The term "machine-readable storage medium" can include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0067] Figure 1 This is a schematic diagram of the network architecture applicable to embodiments of this application.

[0068] Figure 1 The network architecture shown in (a) is applicable to a single-site sensing scenario. A single-site sensing scenario includes at least one sensing device (e.g., network device 110) and at least one sensed target (e.g., sensed target 120). The network device 110 can send sensing signals and detect the sensed target 120 by receiving sensing echo signals or reflected signals generated after the sensing signals encounter the sensed target.

[0069] Figure 1 The network architecture shown in (b) is suitable for multi-station sensing scenarios. A multi-station sensing scenario includes at least two sensing devices, where one sensing device can send sensing signals to enable other sensing devices to sense the target object. Specifically, as... Figure 1 As shown in (b), the communication system includes at least two sensing devices (e.g., network device 110 and network device 111) and at least one sensed target (e.g., sensed target 120). The network device 110 can send a sensing signal, and the network device 111 detects the sensed target 120 by receiving a sensing echo signal or a reflected signal generated when the sensing signal encounters the sensed target.

[0070] It should be understood that Figure 1 As an example only, the network architecture applicable to the embodiments of this application may also include more sensing devices, and each sensing device may also perform sensing communication with at least one sensed target.

[0071] In addition, the communication method provided in the embodiments of this application may also involve Figure 1 Network elements or devices not shown in the diagram, for example, Figure 1 It may also include terminal devices, network devices 110 and / or network devices 111, which can communicate with the terminal devices based on the results of sensing.

[0072] In addition, when the network device 110 sends the sensing signal, it can use a time-division multiplexing method with the communication signal, that is, the network device only sends the sensing signal; or it can use other multiplexing methods such as frequency division or space division with the communication signal to perform sensing and communication at the same time. This application embodiment does not limit this.

[0073] It should be understood that the network architecture and business scenarios described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0074] To facilitate understanding of the embodiments of this application, the terms involved in this application will be briefly explained below.

[0075] 1. Communication services and sensing services

[0076] Electromagnetic waves possess both communication and sensing (or detection) capabilities. Communication systems, such as NR or LTE systems, can utilize the communication capabilities of electromagnetic waves to transmit information between network nodes, i.e., provide communication services. Similarly, communication systems can utilize the sensing capabilities of electromagnetic waves to perform functions such as positioning, motion detection, and imaging, i.e., provide sensing services. For a long time, communication and sensing services have developed independently and in parallel. However, as wireless communication technology evolves towards higher operating frequencies, such as millimeter waves and terahertz, wider system bandwidths, such as hundreds of megahertz (MHz) and tens of gigahertz (GHz), and larger antenna apertures, these characteristics provide the technological foundation for integrating communication and sensing services into communication systems. Therefore, in next-generation communication systems, or future communication networks, technologies that integrate wireless communication and sensing services, or integrated communication and sensing technologies, will be one of the key enabling technologies.

[0077] 2. Sensing signals

[0078] A sensing signal refers to a signal used to sense or detect a target; in other words, a sensing signal is a signal used to sense or detect environmental information. For example, a sensing signal is an electromagnetic wave transmitted by a network device to sense environmental information. Sensing signals can also be called radar signals, radar sensing signals, detection signals, radar detection signals, environmental sensing signals, etc. This application does not limit the specific name of the sensing signal.

[0079] 3. Echo signal

[0080] The sensed signal is an electromagnetic feedback signal generated by transmission, scattering, and reflection from the sensed target. This echo signal is used to sense the target, corresponding to the sensed target. The sensed target can be one or more.

[0081] 4. Time Unit

[0082] A time unit is a time-domain unit used for data transmission, which may include a radio frame, subframe, slot, mini-slot, or at least one symbol. A slot consists of N symbols, where N is a positive integer. For example, for a normal cyclic prefix (NCP), N equals 14; for an extended cyclic prefix (ECP), N equals 12. When the scheme of this application is applied to other systems, N can also be other values. The length of a slot can vary for different subcarrier intervals, and this application does not limit this.

[0083] 5. Resource allocation for communication and sensing services

[0084] Because communication services and sensing services differ in their business requirements and operating modes, the industry typically adopts a time-division duplex (TDD) approach to allocate corresponding resources for communication services and sensing services separately, for the sake of system design and resource management convenience. For example, a communication system can independently configure fixed resources for communication services and sensing services, or a communication system can configure corresponding resources for sensing services based on communication services. These will be described in detail below.

[0085] Method 1: The communication system can independently configure fixed resources, such as time slots, for communication services and sensing services. These two types of resources do not interfere with each other, thus meeting the system's communication and sensing requirements. The resource configured for communication services can be called a communication resource, such as a communication slot, or simply, the resource is used to perform communication functions or provide communication services. The resource configured for sensing services can be called a sensing resource, such as a sensing slot, or simply, the resource is used to perform sensing functions or provide sensing services. A certain length of protection resources, such as a guard period (GP), also known as blank slots, can be reserved between communication and sensing resources to provide necessary slot overhead when the system switches between communication and sensing services.

[0086] For example, Figure 2 This is a schematic diagram of the resource configuration for communication and sensing services.

[0087] In such Figure 2 The 2.5ms dual-cycle frame structure shown contains 5 full downlink time slots (D), 3 full uplink time slots (U), and 2 special time slots (S) every 5ms. Among them, time slots 0, 1, 5, and 6 of the full downlink time slots are inductive downlink time slots, and time slot 2 is a communication downlink time slot; time slots 3 and 7 are special time slots; and time slots 4, 8, and 9 are full uplink time slots, with the overall configuration being DDDSUDSUU.

[0088] Specifically, each time slot includes 14 symbols. Within each 10ms period, communication can occur on every symbol of the downlink communication time slot. For example, communication signals can be transmitted on symbols 0 to 13 of time slots 2 and 12. Communication can occur on some symbols of the downlink sensing time slot, while sensing can occur on other symbols. For example, communication signals can be transmitted on symbols 0 to 8 of time slots 0, 1, 5, 6, 10, 11, 15, and 6, while sensing signals can be transmitted on symbol 11.

[0089] Method 2: The communication system can configure corresponding resources for the sensing service based on the communication service. For example, the communication system can prioritize configuring communication resources and use the communication signals carried by the communication resources to perform preliminary sensing of the target to be sensed, obtaining prior information about the target, such as the target's location, approximate speed of movement, and number of targets. Based on this, the communication system can further determine the subsequent sensing resources required based on the prior information, and then configure sensing resources of the corresponding length to achieve on-demand configuration of sensing resources, which is beneficial to improving the system's communication capacity.

[0090] In the resource configuration of communication services and sensing services, there are situations where sensing transceiver arrays operate simultaneously; for example, network devices can... Figure 2 Symbol 11 indicates that both the transmission and reception channels are simultaneously activated for sensing. In this scenario, the transmitted signal may leak into the reception channel, causing co-channel interference.

[0091] 6. Analog Automatic Gain Control (AAGC)

[0092] AAGC uses a detector circuit to obtain the DC component related to the peak voltage from the output terminal and feeds it into an error amplifier. This controls the junction field-effect transistor to operate in the variable resistance region, thereby changing the amplifier gain to achieve automatic gain control and meet the corresponding sensitivity and maximum in-band blocking protocol requirements.

[0093] Figure 3 This is a schematic diagram of the working principle of AAGC applicable to the embodiments of this application.

[0094] like Figure 3 As shown, the AAGC circuit generally has three processes: First, when the input signal power is less than P1, the AAGC operates in the linear region, amplifying the input signal. Second, when the input signal power is greater than P1 but less than P2, the AAGC operates in the constant operating region, balancing the input signal and keeping it within a fixed range. That is, as the input signal increases, the output signal remains essentially unchanged; this process can be called AAGC initiation, with P1 as the initiation point. Third, when the input signal power exceeds P2, it exceeds the dynamic balancing range of the AAGC, and the AAGC enters the saturation region, causing the output signal to continue increasing; P2 is the saturation point.

[0095] For ease of understanding, combined with Figure 4 This is a brief introduction to a receiver circuit diagram that includes AAGC functionality.

[0096] like Figure 4 As shown, the receiver circuit includes an RF section 410, an IF section 420, and a baseband section 430.

[0097] After the antenna receives the radio frequency (RF) signal, the RF section 410 converts the RF signal into an intermediate frequency (IF) signal. Specifically, the filter 411 retains signals of specific frequencies while attenuating signals of other frequencies, thereby reducing interference to a certain extent; the RF variable gain amplifier (VGA) 412 adjusts the gain according to the strength of the received signal to enhance the signal strength and ensure that the signal has sufficient amplitude in subsequent processing; the multiplier 413 mixes the processed RF signal with the IF signal generated by the local oscillator to obtain the IF signal; since the IF signal generated by mixing may contain certain spurious components, the filter 414 filters out the spurious components to ensure the purity of the IF signal; the amplifiers 415 and 417 and the IF VGA 416 amplify the filtered IF signal to enhance the signal amplitude and make it more suitable for subsequent signal processing.

[0098] The intermediate frequency (IF) section 420 is used to convert the IF signal into a baseband signal. Specifically, the analog-to-digital converter (ADC) module 421 can convert the analog IF signal into a digital signal for digital domain processing; the direct digital control (DDC) module 422 can convert the IF signal to a lower frequency range and demodulate the IF signal after digital down-conversion to extract the baseband signal; furthermore, the baseband signal can be processed by filtering and amplification, such as filtering by the finite impulse response (FIR) module 423 to remove interference during signal processing, and the digital automatic gain control (DAGC) module 424 dynamically adjusting the gain of the filtered baseband signal to optimize signal quality.

[0099] Before down-converting the intermediate frequency (IF) signal, the AAGC module 425 can process the IF signal to ensure it has appropriate amplitude and gain before being converted to a baseband signal. The AAGC module 425 automatically detects the amplitude of the IF signal and adjusts its gain. If the signal amplitude is too large, the AAGC module 425 reduces the gain to prevent saturation or signal distortion in subsequent circuits; if the signal amplitude is too small, the AAGC module 425 increases the gain to improve the signal amplitude and signal-to-noise ratio. The output signal of the AAGC module 425 can be coupled with the output signal of the ADC module 421, serving as the input to the DDC module 422; it can also be used for gain adjustment of the RF variable gain amplifier 412 and the IF variable gain amplifier 416.

[0100] The baseband section 430 is used for data processing, transmission, and signaling control based on baseband signals. Specifically, a highly customized circuit solution for a specific application can be implemented by an application-specific integrated circuit (ASIC) module 431 (e.g., in communication equipment, the ASIC module 431 can provide faster and more reliable data transmission). The digital signal processing (DSP) module 432 is mainly used for processing digital signals (e.g., for channel encoding / decoding, encryption, modulation / demodulation, etc.), and can also be used for control and management (e.g., timing control or digital system control).

[0101] For example, in Figure 4 In the circuit structure shown, when the input signal power of the AAGC module 425 exceeds the control threshold (e.g., -52dBm), the AAGC is activated, controlling the RF VGA 412 and IF VGA 416 to attenuate. When the input signal power of the AAGC module 425 exceeds the saturation threshold (e.g., -25dBm), the input signal exceeds the maximum adjustment range of the AAGC, further causing the ADC module 421 to saturate.

[0102] It should be understood that the output signal Y of the ADC module 421 is:

[0103] Y = α·S + α·I + α·N + N ADC

[0104] Where S represents the average signal power in the channel, N represents the noise power in the channel, I represents the interference signal power, and N ADC The quantization noise of the ADC is represented by α, and the amplifier gain is represented by α (α<1 indicates a decrease in amplifier gain, and α>1 indicates an increase in amplifier gain).

[0105] Correspondingly, the system's signal-to-interference plus-noise ratio (SINR) is:

[0106]

[0107] When the AAGC module 425 is activated, the amplifier gain decreases (i.e., α < 1), therefore:

[0108]

[0109] That is, the AAGC start-up causes the system SINR to increase.

[0110] It should be noted that, Figure 4This is merely an example, intended to more clearly illustrate one circuit structure of a receiver with AAGC functionality, and does not constitute a limitation on the technical solutions provided in the embodiments of this application.

[0111] 7. Antenna isolation

[0112] Isolation refers to the ratio of the input power at one port to the output power at another port. Antenna isolation is used to quantitatively characterize the strength of coupling between antennas. In a system, to ensure that each antenna functions properly, the antenna isolation must meet certain requirements; otherwise, the interference between antennas will exceed the useful signal, causing the system to malfunction.

[0113] Antenna isolation can be determined using the following formula:

[0114]

[0115] Where S is the antenna isolation, P T P represents the transmit power of the transmit port. R This represents the received power at the receiving port. Isolation is generally expressed logarithmically, with the unit being decibels (dB). Higher isolation results in less interference between antennas.

[0116] It should be understood that the method for calculating antenna isolation in the embodiments of this application is not limited, and relevant descriptions in the prior art can be referred to.

[0117] 8. Radio equipment control (REC) and radio equipment (RE)

[0118] Network equipment can consist of two parts: a Radio Frequency Unit (REC) and a Radio Frequency Receiver (RE). These REC and RE subsystems are also referred to as nodes. A wireless base station system can include two or more nodes, specifically at least one REC and at least one RE. The REC and RE are connected via optical fiber. Both the REC and RE consist of hardware and software components. The REC can be a Baseband Unit (BBU), a Core Unit (CU), or a Digital Unit (DU). The RE can be a Remote Radio Unit (RRU). The REC performs baseband processing, including air interface protocol processing, and controls the RE; the RE performs radio frequency signal processing, including RF demodulation, filtering, amplification, and analog-to-digital conversion of uplink signals, and RF modulation, amplification, and digital-to-analog conversion of downlink signals.

[0119] based on Figure 1The communication system architecture shown may cause co-channel interference at the receiver when the sensing and transmitting arrays are working simultaneously. Specifically, this may include the following situations.

[0120] Figure 5 This is a schematic diagram of a co-channel interference scenario applicable to embodiments of this application.

[0121] The receiver (RX)1 of sector 1 of network device 510 can receive a sensed transmission signal leaked from the transmitter (TX)1 of the same sector (sector 1), thus being affected by co-channel interference from different arrays within a single sector. The RX1 of sector 1 of network device 510 can also receive a sensed transmission signal leaked from the transmitter (TX2) of a different sector (e.g., sector 2) of the same network device, thus being affected by inter-sectoral co-channel interference. The RX1 of sector 1 of network device 510 can also receive a sensed transmission signal leaked from the transmitter (TX3) of a sector (e.g., sector 3) of a different network device (e.g., network device 511), thus being affected by inter-site co-channel interference.

[0122] The aforementioned co-channel interference may cause the RX1 received signal power to exceed the AAGC trigger point, triggering AAGC and consequently degrading the receiver's sensitivity, thus affecting the sensing results. Furthermore, since AAGC triggering increases system noise and has a long recovery time (10ms–100ms), it may further degrade the receiver's sensitivity in subsequent communication sessions, impacting communication quality.

[0123] In view of this, embodiments of this application provide a communication method, apparatus and system that adds an attenuator at the receiving end, controls the attenuation value and attenuation duration through the attenuator, avoids AAGC control due to interference, and reduces the impact of co-channel interference on sensing and communication.

[0124] The technical solution provided in this application will be described in detail below with reference to the accompanying drawings.

[0125] Figure 6 This is a schematic diagram of a communication method 600 applicable to an embodiment of this application.

[0126] It should be understood that Figure 6 The steps or operations of this communication method are illustrated, but these steps or operations are merely examples, and other operations may be performed in the embodiments of this application. Figure 6 Variations of various operations within it.

[0127] The communication method of this application is applicable to network devices. The network device can be a network equipment, a component within a network equipment (e.g., a processor, chip, or chip system), or a logic module or software (e.g., REC and RE) capable of implementing all or part of the functions of the network equipment. The embodiments of this application are applicable to single-site sensing scenarios, i.e., as... Figure 1 The scenario shown in (a) can also be applied to multi-station sensing scenarios, i.e., as shown in (a). Figure 1 The scene shown in (b) is shown in the image.

[0128] Without loss of generality, the following describes in detail the communication method provided in the embodiments of this application, taking the interaction between REC and RE in the first device (which can be a network device as a sensing device) in a single-site scenario as an example.

[0129] S601: RE1 sends the first information to REC; correspondingly, REC receives the first information from RE1.

[0130] Specifically, the first information is used to indicate a first isolation degree and / or a first threshold value, wherein the first isolation degree is the isolation degree between the first port and the second port, and the first threshold value is related to the AAGC start control value.

[0131] The fields carried by the first information include, but are not limited to, at least one of the following:

[0132] (1) Sensing channel identifier: used to indicate the transmission channel of the sensing signal, or can be understood as used to indicate the transmission port of the sensing signal (e.g., the first port).

[0133] (2) Sensing channel identifier: used to indicate the receiving channel of the sensing signal, or can be understood as used to indicate the receiving port of the sensing signal (e.g., the second port).

[0134] (3) Isolation: Used to indicate the degree of isolation between the sending port and the receiving port (e.g., first isolation).

[0135] (4) First threshold value: The first threshold value is related to the AAGC's control threshold, that is, the first threshold value can be the AAGC's control threshold; or it can be determined based on the AAGC's control threshold. For example, the difference between the first threshold value and the AAGC's control threshold is a constant, or the first threshold value is a function of the AAGC's control threshold. This application does not limit the specific correspondence between the first threshold value and the AAGC's control threshold.

[0136] It should be understood that the names of the above fields are only used to indicate the corresponding functions, and the specific names of the above fields are not limited in the embodiments of this application.

[0137] It should be noted that RE1 may send the first information to REC before each execution of steps S602 to S606; or, RE1 may send the first information to REC only once, thus applying it to each execution of subsequent steps S602 to S606; or, RE1 may send the first information to REC once within a first time period, thus applying it to each execution of subsequent steps S602 to S606 within the first time period. The first time period may be a specific time period during which the first device is in operation, or it may be a periodic time period during which the first device is in operation. This application embodiment does not limit the specific timing of RE1 sending the first information.

[0138] Correspondingly, REC can receive the first information from RE1 before each execution of steps S604 to S607; or, REC can receive the first information from RE1 only once, and apply it to each execution of subsequent steps S604 to S607; or, REC can receive the first information from RE1 once within a first time period, and apply it to each execution of subsequent steps S604 to S607 within the first time period, wherein the first time period can be a specific time period during which the first device is in the working state, or it can be a periodic time period during which the first device is in the working state. This application embodiment does not limit the specific timing of REC receiving the first information.

[0139] S602: RE1 sends the first signal on the first symbol through the first port.

[0140] Among them, the first signal is the sensing signal, and the first port is the sensing signal transmission port (transmitter).

[0141] It should be noted that the first symbol can be understood as a symbol for the first device to perform target perception; or it can be understood as a time window or time period in which the first device sends perception signals, and the first device can send perception signals within this time period. This application does not limit this.

[0142] S603: Receive the second signal on the first symbol via the second port.

[0143] Specifically, the second signal includes the echo signal of the first signal and / or the interference signal corresponding to the first signal, and the second port is a sensing signal receiving port (receiving end).

[0144] It should be understood that on the first symbol, both the transmitting end (first port) and the receiving end (second port) of RE1 are in the on state. The receiving end may be interfered with by the transmitted signal (first signal), which may cause AAGC to start, reduce the sensitivity of the receiving end, and thus affect sensing and communication.

[0145] In one possible implementation, the first port and the second port are located in the same sector of the first device. That is, the interference of the transmitted signal received by the second port is interference from different arrays within a single sector, or it can also be called intra-sector interference.

[0146] For example, as described above Figure 5 As shown, the RX1 of sector 1 of network device 510 can receive the sense transmission signal leaked from the transmitter TX1 of the same sector (sector 1), thus being affected by co-frequency interference from different arrays of a single sector.

[0147] In one possible implementation, the first port and the second port are located in different sectors of the first device. That is, the interference of the transmitted signal experienced by the second port is inter-sector interference.

[0148] For example, as described above Figure 5 As shown, the RX1 of sector 1 of network device 510 can also receive the sense transmission signal leaked by the transmitter TX2 from a different sector (e.g., sector 2) of the same network device, thus being affected by co-channel interference between sectors.

[0149] S604: REC sends the second information to RE1; correspondingly, RE1 receives the second information from REC.

[0150] The second information is used to indicate the attenuation of the second signal.

[0151] In one possible implementation, the second information may include an attenuation value that is related to the first information.

[0152] Optionally, the attenuation value is greater than or equal to the difference between the first power and the first threshold value; or, the attenuation value is zero.

[0153] The first power is the interference power of the second port (i.e., the power of the interference signal corresponding to the first signal), which is determined by the first isolation and / or the transmission power of the first signal.

[0154] Optionally, the first power satisfies:

[0155] P1 = P T1 -S1

[0156] Where P1 represents the first power, P T1 S1 represents the transmission power of the first signal and S2 represents the first isolation level.

[0157] Optionally, the transmission power of the first signal and / or the first isolation degree can be predefined or determined by the first device through testing, and this application does not limit this.

[0158] For example, the transmission power of the first signal can be preset to a constant, and the attenuation value is determined according to the first isolation degree; or, the first isolation degree can be preset to a constant, and the attenuation value is determined according to the transmission power of the first signal.

[0159] Optionally, when the first power is greater than the first threshold, the attenuation value is greater than or equal to the difference between the first power and the first threshold; when the first power is less than or equal to the first threshold, the attenuation value is zero.

[0160] This method can accurately determine the magnitude of signal attenuation. If the first power is greater than the first threshold, it indicates that the interference at the second port is sufficient to trigger AAGC. At this point, attenuating the interference to below the first threshold can prevent the interference from directly triggering AAGC, thereby reducing the impact of interference on the second port and improving the quality of sensing and subsequent communication. If the first power is less than or equal to the first threshold, it indicates that the interference at the second port is insufficient to trigger AAGC, therefore no attenuation processing of the received signal is necessary.

[0161] It should be noted that the attenuation value is related to the first information, but this does not mean that the attenuation value can only be directly related to the first information (the first isolation degree and / or the first threshold value). The attenuation value can also be related to other intermediate variables determined based on the first information. That is, the attenuation value can also be indirectly related to the first isolation degree and / or the first threshold value, which is not limited in this application.

[0162] It should be understood that the specific method for determining the attenuation value in the embodiments of this application is not limited to the contents listed above. For example, the attenuation value is the sum of the difference between the first power and the first threshold value and the first parameter; or, the attenuation value is the first parameter. Wherein, the first parameter is a real number.

[0163] For example, when the difference between the first power and the first threshold value is greater than the second parameter, the attenuation value is the sum of the difference between the first power and the first threshold value and the first parameter; when the difference between the first power and the first threshold value is less than or equal to the third parameter, the attenuation value is the fourth parameter. Here, the second, third, and fourth parameters are all real numbers.

[0164] In one possible implementation, the second information may further include a decay period, which is associated with the first symbol.

[0165] Optionally, the decay period can be the first symbol.

[0166] For example, in such Figure 2 In the sensory resource configuration shown, both the attenuation period and the first symbol can be symbol 11. That is, the first device can sense at symbol 11 and attenuate the sensed received signal at symbol 11.

[0167] In this case, attenuating the received signal on the first symbol can prevent interference from still existing at the end of the attenuation due to an excessively short attenuation time, which would cause AAGC to be initiated, thereby reducing the sensitivity of the receiver and affecting the quality of sensing and subsequent communication. It can also prevent the received signal from still attenuating after the sensing period ends due to an excessively long attenuation time, which would affect communication.

[0168] Optionally, the attenuation period can also be a sub-period within the first symbol; or, the first symbol can also be a sub-period of the attenuation period. That is, as long as there is an intersection between the attenuation period and the first symbol, the impact of co-channel interference caused by the simultaneous operation of the transceiver array on the receiver can be reduced to a certain extent, thereby improving the quality of sensing and subsequent communication.

[0169] S605: RE1 attenuates the second signal according to the second information.

[0170] Optionally, RE1 can determine the degree of attenuation of the second signal based on the attenuation value in the second information.

[0171] Optionally, RE1 can also attenuate the second signal according to the attenuation period in the second information. Specifically, RE1 determines when to attenuate the second signal based on the attenuation period.

[0172] In this scenario, RE1 attenuates the signal received during the period when the antenna transceiver arrays are operating simultaneously, which can reduce the impact of co-channel interference caused by transmission signal leakage on the receiver and improve the quality of sensing and subsequent communication.

[0173] S606: RE1 sends the attenuated second signal to REC; correspondingly, REC receives the attenuated second signal from RE1.

[0174] S607: REC performs sensing processing based on the attenuated second signal.

[0175] In one possible implementation, method 600 may further include RE2, so that the second signal may further include the echo signal of the third signal and the interference signal corresponding to the third signal, the third signal being transmitted through the third port of RE2.

[0176] Optionally, RE2 belongs to the first device.

[0177] For example, the third port may be located in a different sector than the second port. In this case, the second port is also subject to inter-sector interference.

[0178] Optionally, RE2 belongs to a different device than the first device (as a sensing device, it can be a network device).

[0179] In this situation, inter-station interference also exists at the second port.

[0180] For example, as described above Figure 5 As shown, the RX1 of sector 1 of network device 510 can also receive the sense transmission signal leaked from the transmitter TX3 of sector (e.g., sector 3) of different network devices (e.g., network device 511), thus being affected by inter-station co-channel interference.

[0181] In this implementation, the second port is subject to various interferences, and the first power can also be determined by the transmission power of the third signal and / or the second isolation, which is the isolation between the second port and the third port.

[0182] Optionally, the first power satisfies:

[0183] P1 = P T1 -S1+P T3 -S2

[0184] Where P1 represents the first power, P T1 S1 represents the first signal transmission power, S1 represents the first isolation, and P represents the first signal isolation. T3 S1 represents the transmission power of the third signal, and S2 represents the second isolation level.

[0185] Optionally, the second port may also contain further interference, which is not limited in this application. For example, the second signal may also include the echo signal of the fourth signal and the interference signal corresponding to the fourth signal, the fourth signal being transmitted through the fourth port.

[0186] Figure 7 This is a schematic diagram of an isolation degree determination method 700 applicable to embodiments of this application.

[0187] It should be understood that Figure 7 As an example only, other operations may also be performed in the embodiments of this application. Figure 7 Variations of various operations within it.

[0188] Optionally, Figure 7 The method shown can be executed internally by the first device (which, as a sensing device, may be a network device), for example, determining intra-sector isolation and / or inter-sector isolation; or it can also be applied between the first device and the second device (which, as a sensing device, may be a network device), for example, determining inter-station isolation. Alternatively, it can be executed by modules and / or devices (e.g., chips or integrated circuits) with corresponding functions installed in the first device and / or the second device.

[0189] in other words, Figure 7When the method shown is used to determine intra-sector isolation and / or inter-sector isolation, the REC and RE of the first device can interact. Figure 7 When the method shown is used to determine inter-station isolation, the REC and RE1 of the first device can interact with the RE2 of the second device. That is, the REC of the first device can interact with at least one RE.

[0190] Without loss of generality, the following detailed explanation will focus on the interaction between REC and at least one RE.

[0191] S701: REC sends message A to RE; correspondingly, RE receives message A from REC.

[0192] Specifically, message A is used to instruct at least one RE to perform an isolation test.

[0193] It should be noted that the isolation test is used to determine the isolation between antennas (or ports), and this application does not limit its name.

[0194] The fields carried by message A include, but are not limited to, at least one of the following:

[0195] (1) Sensing channel identifier: used to indicate the transmission channel of the sensing signal, or can be understood as used to indicate the transmission port of the sensing signal.

[0196] (2) Sensing channel identifier: used to indicate the receiving channel of the sensing signal, or can be understood as used to indicate the receiving port of the sensing signal.

[0197] (3) Detection frequency range: also known as detection bandwidth, is used to indicate the frequency range for isolation testing. For example, the detection frequency range can be determined based on the operating frequency range of the RE for transmitting and / or receiving sensing signals.

[0198] (4) Detection step size: also known as detection step value, is used to indicate the detection frequency interval for isolation testing within the frequency range.

[0199] It should be understood that the names of the above fields are only used to indicate the corresponding functions, and the specific names of the above fields are not limited in the embodiments of this application.

[0200] S702: RE performs an isolation test based on message A.

[0201] Specifically, the RE tests the antenna isolation between the transmitting and receiving ports of the sensed signal based on the detection frequency range and detection step size.

[0202] For example, if the detection frequency range is [100, 200] MHz and the detection step size is 50 MHz, then the transmitting end RE and the receiving end RE will perform isolation tests in the frequency ranges of [100, 150] MHz and [150, 200] MHz respectively.

[0203] It should be noted that, since the detection step size is less than or equal to the detection frequency range, after the isolation test, at least one isolation test result is generated between the transmitting end RE and the receiving end RE. The isolation test result is used to indicate the isolation between the transmitting port and the receiving port within a specific detection frequency range.

[0204] In addition, the isolation between the sending port and the receiving port is related to the result of at least one isolation test.

[0205] Optionally, the isolation between the sending port and the receiving port is the minimum value of the at least one isolation test result.

[0206] It should be understood that since smaller isolation results in greater interference, using the minimum value from at least one isolation test result to characterize the isolation between two ports allows us to determine the maximum interference between them, thus enabling the determination of the interference mentioned earlier. Figure 6 The method shown attenuates interference signals at the receiving end to the greatest extent possible, reducing the impact of interference on sensing and communication.

[0207] Optionally, the isolation between the sending port and the receiving port is the average of the results of the at least one isolation test.

[0208] It should be understood that using the average of at least one isolation test result to characterize the isolation between two ports can more accurately measure the overall interference between the two ports, thus enabling the understanding of the aforementioned... Figure 6 The method shown effectively attenuates interference signals at the receiving end, reducing the impact of interference on sensing and communication.

[0209] It should be understood that the process of performing the isolation test can refer to the relevant descriptions in the preceding term 7 and the prior art, and this application does not limit it.

[0210] S703: RE sends message B to REC (an example from the first message); correspondingly, REC receives message B sent by RE.

[0211] Specifically, message B is used to indicate the isolation degree between the sending port and the receiving port. For details regarding the content of message B, please refer to the relevant description of the first information in step S601 of method 600 above; it will not be repeated here.

[0212] It should be noted that method 600 can be combined with method 700, that is, the first isolation degree and / or the second isolation degree can be determined according to method 700 and applied to method 600; or, method 600 can also be combined with other methods for determining isolation degree, which is not limited in this application.

[0213] Optionally, the first device can perform such actions each time. Figure 6 The method shown before 600 is based on, as follows Figure 7 The method 700 shown determines the first isolation degree and / or the second isolation degree.

[0214] Alternatively, the first device may execute method 700 only once to determine the first isolation degree and / or the second isolation degree, and then apply it to each execution of method 600.

[0215] Optionally, the first device may also execute method 700 only once during the second time period, and apply the determined first isolation degree and / or second isolation degree to each execution of method 600 during the second time period. The second time period may be a specific time period during which the first device is in operation, or it may be a periodic time period during which the first device is in operation; this application does not limit this.

[0216] For ease of understanding, the following text will combine... Figure 8 This section provides a brief overview of the workflow of the sensing device applicable to Method 600.

[0217] Figure 8 This is a schematic diagram of the operation of the sensing device applicable to the embodiments of this application.

[0218] Figure 8 Section (a) describes the workflow of the sensing device when intra-sector interference or inter-sector interference is present. Specifically, before the first device performs sensing, the baseband unit (e.g., REC) instructs the transmit and receive ports to perform an isolation test to determine the isolation between the transmit and receive ports. When the first device performs sensing, the sensing signal is processed by the transmitter (e.g., converted from a digital signal to an analog signal via a DAC) and then transmitted through the transmit port. The receive port receives the sensing echo signal generated when the sensing signal encounters the sensed target, thus detecting the sensed target.

[0219] When the transmitting and receiving ports belong to the same sector, the sensing signal transmitted by the transmitting port may leak to the receiving port, causing intra-sector co-channel interference at the receiving end. This results in excessive received signal power, affecting sensing and communication quality. In this case, the baseband unit determines the attenuation value based on the isolation between the transmitting and receiving ports, the transmission power of the sensing signal, and the AAGC trigger value. An attenuator is used to attenuate the received signal at the receiving port (the received signal can be pre-processed at the receiving end, for example, by converting the analog signal to a digital signal using an ADC, or by filtering the received signal using a filter). This prevents intra-sector co-channel interference from directly triggering AAGC at the receiving end, improving sensing and subsequent communication quality. The baseband unit then performs sensing processing on the attenuated signal to obtain the sensing results.

[0220] Similarly, when the transmitting and receiving ports belong to different sectors, the sensing signal transmitted by the transmitting port may leak to the receiving port, causing inter-sectoral co-channel interference at the receiving end. This results in excessive received signal power, affecting sensing and communication quality. In this case, the baseband unit determines the attenuation value based on the isolation between the transmitting and receiving ports, the transmission power of the sensing signal, and the AAGC trigger value. An attenuator is used to attenuate the received signal at the receiving port (the received signal can be processed at the receiving end first, for example, by converting the analog signal to a digital signal using an ADC, or by filtering the received signal using a filter). This prevents inter-sectoral co-channel interference from directly triggering AAGC at the receiving end, improving sensing and subsequent communication quality. The baseband unit then performs sensing processing based on the attenuated signal to obtain the sensing results.

[0221] Figure 8Section (b) describes the workflow of the sensing device in the presence of inter-site interference. Specifically, the sensing signal is transmitted from the transmitting port of the second device and received from the receiving port of the first device. Before the first and second devices perform sensing, the baseband unit (e.g., REC) of the first device instructs the transmitting port of the second device and the receiving port of the first device to perform an isolation test to determine the isolation between them. When the first and second devices perform sensing, the sensing signal is processed by the transmitting end of the second device (e.g., converted from digital to analog signal by a DAC) and then transmitted through the transmitting port of the second device. The receiving port of the first device receives the sensing echo signal generated when the sensing signal encounters the sensed target, thus detecting the sensed target. In this case, the sensing signal transmitted by the transmitting port of the second device may leak to the receiving port of the first device, causing inter-site co-channel interference to the receiving end of the first device, resulting in excessive received signal power and affecting the sensing and communication quality. In this scenario, the baseband unit of the first device determines the attenuation value based on the isolation between the transmitting port of the second device and the receiving port of the first device, the transmitting power of the sensing signal of the second device, and the AAGC activation value of the first device. It then uses an attenuator to attenuate the received signal at the receiving port of the first device (the received signal may have undergone pre-processing at the receiving end, such as converting analog signals to digital signals using an ADC, or filtering the received signal using a filter). This prevents inter-station co-channel interference from directly triggering AAGC activation at the receiving end, thus improving the quality of sensing and subsequent communication. The baseband unit of the first device then performs sensing processing based on the attenuated signal to obtain the sensing results.

[0222] To facilitate understanding of the above embodiments provided in this application, the following points are made.

[0223] (1) In the embodiments of this application, "instruction" may include direct instruction, indirect instruction, explicit instruction, and implicit instruction. When describing a certain instruction information for the purpose of indicating A, it can be understood that the instruction information carries A, directly indicates A, or indirectly indicates A.

[0224] In this application, the information indicated by the instruction information is called the information to be instructed. In specific implementations, there are many ways to indicate the information to be instructed, such as, but not limited to, directly indicating the information to be instructed, such as the information to be instructed itself or its index. It can also indirectly indicate the information to be instructed by indicating other information, where there is a relationship between the other information and the information to be instructed. It can also indicate only a part of the information to be instructed, while the other parts are known or pre-agreed upon. For example, the instruction of specific information can be achieved by using a pre-agreed (e.g., protocol-defined) arrangement of various pieces of information, thereby reducing instruction overhead to some extent. Furthermore, the information to be instructed can be sent as a whole or divided into multiple sub-information pieces, and the sending period and / or timing of these sub-information pieces can be the same or different.

[0225] (2) In this application, "send" and "receive" indicate the direction of signal transmission. For example, "send information to XX" can be understood as the destination of the information being XX, which may include direct transmission via the air interface or indirect transmission via the air interface by other units or modules. "Receive information from YY" can be understood as the source of the information being YY, which may include direct reception from YY via the air interface or indirect reception from YY via the air interface by other units or modules. "Send" can also be understood as the "output" of the chip interface, and "receive" can also be understood as the "input" of the chip interface. In other words, sending and receiving can occur between devices, such as between network devices and terminal devices, or within a device, such as between components, modules, chips, software modules, or hardware modules within the device via a bus, wiring, or interface.

[0226] (3) In the various embodiments of this application, unless otherwise specified or logically conflicting, the terms and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0227] (4) In this application, "first" and "second" are used for descriptive convenience only to distinguish objects and are not intended to limit the scope of the embodiments of this application. They are not used to describe the order or sequence of features. It should be understood that the objects described in this way can be interchanged where appropriate so as to describe solutions other than those in the embodiments of this application.

[0228] (5) In this application, “predefined” can be achieved by pre-storing the corresponding code, table or other means that can be used to indicate relevant information in the device. This application does not limit the specific implementation method.

[0229] (6) In this application, the “protocol” may refer to standard protocols in the field of communications, such as the Long Term Evolution (LTE) protocol, the New Radio (NR) protocol, and related protocols applied to future communication systems. This application does not limit the scope of the term.

[0230] (7) In this application, the words “exemplary,” “for example,” “exemplary,” “as another example,” etc., are used to indicate that they are examples, illustrations, or descriptions. Any embodiment or design that is described as an “exemplary” in this application should not be construed as being more preferred or advantageous than other embodiments or designs.

[0231] (8) In this application, “comprising,” “including,” “having,” and variations thereof mean “including but not limited to,” unless otherwise specifically emphasized. “At least one” means one or more, and “more” means two or more.

[0232] (9) In this application, "and / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, or B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the related objects before and after are in an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, and c can mean: a, or, b, or, c, or, a and b, or, a and c, or, b and c, or, a, b, and c. Where a, b, and c can be single or multiple.

[0233] (10) In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terms and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0234] (11) Some optional features in the various embodiments of this application may not depend on other features in some scenarios, or may be combined with other features in some scenarios, without limitation.

[0235] (12) In this application, the system time domain range can be divided into multiple time units. By way of example and not limitation, in this application, the time unit may include a symbol, a slot, a mini-slot (or non-slot), a subframe, a transmission time interval, or a short transmission time interval, and this application is not limited thereto.

[0236] (13) In this application, the descriptions relating to network element A sending messages, information or data to network element B, and network element B receiving messages, information or data from network element A, are intended to indicate which network element the message, information or data is to be sent to, and do not limit whether they are sent directly or indirectly through other network elements. Descriptions such as “when…”, “under…”, “if” and “if” all indicate that the device will take corresponding actions under certain objective circumstances, and are not time-limited, nor do they require the device to have a judgment action when implementing it, nor do they imply any other limitations.

[0237] In the above text, combined with Figures 6 to 8 The methods of the embodiments of this application have been described in detail. In order to implement the functions of the methods provided in this application, both the transmitting device and the receiving device may include hardware structures and / or software modules, and the above functions may be implemented in the form of hardware structures, software modules, or hardware structures plus software modules. Whether a certain function is implemented in the form of hardware structures, software modules, or hardware structures plus software modules depends on the specific application and design constraints of the technical solution.

[0238] The following is combined with Figures 9 to 11 This application describes a communication device according to an embodiment of the present application.

[0239] Figure 9 This is a schematic diagram of a communication device 900 applicable to an embodiment of this application.

[0240] The device 900 includes a transceiver unit 910 and a processing unit 920. The transceiver unit 910 can communicate with the outside world, and the processing unit 920 is used for data processing. The transceiver unit 910 can also be referred to as a communication interface or a communication unit.

[0241] Optionally, the transceiver unit 910 may also be referred to as a communication interface or communication unit, including a transmitting unit and / or a receiving unit. The transceiver unit 910 may be a transceiver (including a transmitter and / or receiver), an input / output interface (including input and / or output interfaces), or pins or circuits, etc. The transceiver unit 910 can be used to perform the transmitting and / or receiving steps in the above method embodiments.

[0242] Optionally, the processing unit 920 may be a processor (which may include one or more) or a processing circuit with processor functions, and may be used to perform other steps in the above method embodiments besides sending and receiving.

[0243] Optionally, the device 900 further includes a storage unit, which may be a memory, an internal storage unit (e.g., a register or cache), or an external storage unit (e.g., a read-only memory or a random access memory). This storage unit stores instructions, and the processing unit 620 executes the instructions stored in the storage unit to cause the communication device to perform the aforementioned method.

[0244] In addition, the transceiver unit 910 can also be a transceiver circuit (for example, it may include a receiving circuit and a transmitting circuit), and the processing unit 920 can be a processing circuit.

[0245] It should be pointed out that, Figure 9 The device in the application can also be a chip or a system-on-a-chip (SoC). The transceiver unit can be an input / output circuit or a communication interface; the processing unit is a processor, microprocessor, or integrated circuit integrated on the chip. This application does not impose any limitations on this.

[0246] In one design, the device 900 can be used to perform the actions performed by the network device in the various method embodiments described above, such as the actions performed by the REC in method 600 described above. For example, the device 900 can be a component of the REC. The transceiver unit 910 is used to perform transceiver-related operations on the REC side in the method embodiments described above, and the processing unit 920 is used to perform processing-related operations on the REC side in the method embodiments described above.

[0247] For example, the processing unit 920 is used to generate second information and perform sensing processing based on the attenuated second signal.

[0248] The transceiver unit 910 is configured to receive first information, which indicates a first isolation degree and / or a first threshold value, wherein the first isolation degree is the isolation degree between a first port and a second port, and the first threshold value is related to the start-up value of analog automatic gain control (AAGC); transmit second information, which indicates attenuation of a second signal; and receive the attenuated second signal.

[0249] It should be understood that the transceiver unit 910 and the processing unit 920 can also perform other operations performed by REC in either method 600 or method 700, which will not be described in detail here.

[0250] For a more detailed description of the transceiver unit 910 and the processing unit 920 mentioned above, please refer to [link / reference needed]. Figure 6 and Figure 7 The relevant descriptions in the method embodiments shown are directly obtained and will not be repeated here.

[0251] In one design, the device 900 can be used to perform the actions performed by the RE in the various method embodiments described above, such as the actions performed by the RE in method 700 described above. In this case, the device 900 can be a component of the REC, with the transceiver unit 910 performing transceiver-related operations on the RE side in the method embodiments described above, and the processing unit 920 performing processing-related operations on the RE side in the method embodiments described above.

[0252] For example, processing unit 920 is used to attenuate the second signal according to the second information.

[0253] The transceiver unit 910 is configured to transmit first information, which indicates a first isolation degree and / or a first threshold value, wherein the first isolation degree is the isolation degree between a first port and a second port, and the first threshold value is related to the start-up value of analog automatic gain control (AAGC); transmit a first signal on a first symbol through the first port; receive a second signal on the first symbol through the second port, wherein the second signal includes the echo signal of the first signal and / or the interference signal corresponding to the first signal; receive second information, which indicates attenuation of the second signal; and transmit the attenuated second signal.

[0254] It should be understood that the transceiver unit 910 and the processing unit 920 can also perform other operations performed by the RE in any of the methods 600 or 700 described above, which will not be detailed here.

[0255] For a more detailed description of the transceiver unit 910 and the processing unit 920 mentioned above, please refer to [link / reference needed]. Figure 6 and Figure 7 The relevant descriptions in the method embodiments shown are directly obtained and will not be repeated here.

[0256] The aforementioned device 900 is embodied in the form of a functional unit. The term "unit" here may refer to an application-specific integrated circuit (ASIC), electronic circuitry, a processor (e.g., a shared processor, a proprietary processor, or a group processor) and memory for executing one or more software or firmware programs, combined logic circuitry, and / or other suitable components that support the described functions.

[0257] The apparatus 900 of each of the above-described schemes has the function of implementing the corresponding steps performed by the communication device (such as a terminal device or a network device) in the above-described methods. The function can be implemented in hardware or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions; for example, the transceiver unit can be replaced by a transceiver (e.g., the transmitting unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiver), and other units, such as processing units, can be replaced by a processor, respectively executing the transceiver operations and related processing operations in each method embodiment.

[0258] Figure 10 This is a schematic diagram of the structure of a communication device 1000 applicable to an embodiment of this application.

[0259] like Figure 10 As shown, the device 1000 includes a processor 1010 and a transceiver 1020. The processor 1010 and the transceiver 1020 communicate with each other through an internal connection path. The processor 1010 is used to execute instructions to control the transceiver 1020 to transmit and / or receive signals.

[0260] Optionally, the device 1000 may further include a memory 1030, which communicates with the processor 1010 and the transceiver 1020 via an internal connection path. The memory 1030 is used to store instructions, and the processor 1010 can execute the instructions stored in the memory 1030.

[0261] In one possible implementation, the device 1000 is used to implement the various processes and steps executed by the REC in the above method embodiments. The device 1000 can be the REC in the above embodiments; or it can be a chip or chip system configured in the REC. In this case, the transceiver 1020 can be the transceiver circuit of the chip, which is not limited here.

[0262] In one possible implementation, the device 1000 is used to implement the various processes and steps executed by the RE in the above method embodiments. The device 1000 may be specifically the RE in the above embodiments; or it may be a chip or chip system configured in the RE. In this case, the transceiver 1020 may be the transceiver circuit of the chip, which is not limited here.

[0263] Optionally, the memory 1030 may include read-only memory and random access memory, and provide instructions and data to the processor. A portion of the memory may also include non-volatile random access memory. The processor 1010 may be used to execute instructions stored in the memory, and when the processor 1010 executes instructions stored in the memory, the processor 1010 is used to perform the steps and / or processes performed by the network device or terminal device in the above method embodiments.

[0264] In implementation, each step of the above method can be completed by integrated logic circuits in the processor's hardware or by instructions in software. The steps of the method disclosed in the embodiments of this application can be directly implemented by a hardware processor, or by a combination of hardware and software modules in the processor. The software modules can reside in mature storage media in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, or registers. This storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method. To avoid repetition, detailed descriptions are omitted here.

[0265] It should be noted that the processor in the embodiments of this application can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method embodiments can be completed by the integrated logic circuits in the processor's hardware or by instructions in software form. The processor can be a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The processor in the embodiments of this application can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. This storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above methods.

[0266] It is understood that the memory in the embodiments of this application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory may be random access memory (RAM), which serves as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory, dynamic random access memory, synchronous dynamic random access memory, double data rate synchronous dynamic random access memory, enhanced synchronous dynamic random access memory, synchronous linked dynamic random access memory, and direct memory bus random access memory. It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0267] Figure 11 This is a schematic diagram of the structure of a chip system 1100 applicable to an embodiment of this application.

[0268] like Figure 11 As shown, the chip system 1100 (or processing system) includes logic circuitry 1110 and input / output interface 1120.

[0269] The logic circuit 1110 can be a processing circuit in the chip system 1100; the input / output interface 1120 can be an input / output circuit in the chip system 1100, outputting the information processed by the chip system 1100, or inputting data or signaling information to be processed into the chip system 1100 for processing, so that the chip system 1100 can realize the REC or RE functions in the embodiments of this application. Optionally, the logic circuit 1110 can be coupled to a memory unit to call the instructions in the memory unit.

[0270] This application also provides a computer-readable medium having a computer program stored thereon, which, when executed by a computer, performs the functions of the network device or terminal device in any of the above method embodiments.

[0271] This application also provides a computer program product that, when executed by a computer, implements the function of REC or RE in any of the above method embodiments.

[0272] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, or digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, or microwave) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, or magnetic tapes), optical media (e.g., high-density digital video discs (DVDs)), or semiconductor media (e.g., solid-state drives (SSDs)).

[0273] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0274] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0275] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0276] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0277] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0278] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0279] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A communication method, characterized in that, include: Send a first message, the first message being used to indicate a first isolation degree and / or a first threshold value, the first isolation degree being the isolation degree between a first port and a second port, and the first threshold value being related to the start-up control value of analog automatic gain control (AAGC); The first signal is sent on the first symbol via the first port; A second signal is received on the first symbol via a second port, the second signal including the echo signal of the first signal and / or the interference signal corresponding to the first signal; Receive second information, which is determined by the first information, and the second information is used to indicate attenuation of the second signal; The second signal is attenuated according to the second information; Send the second signal after the attenuation.

2. The method according to claim 1, characterized in that, The second information includes an attenuation value, which is greater than or equal to the difference between the first power and the first threshold value; Alternatively, the attenuation value may be zero; The first power is determined by the first isolation degree and / or the transmission power of the first signal.

3. The method according to claim 2, characterized in that: When the first power is greater than the first threshold value, the attenuation value is greater than or equal to the difference between the first power and the first threshold value; When the first power is less than or equal to the first threshold value, the attenuation value is zero.

4. The method according to any one of claims 1 to 3, characterized in that the second information further includes a decay period, the decay period being related to the first symbol.

5. The method according to any one of claims 1 to 4, characterized in that the method further comprises: The second signal is attenuated during the attenuation period.

6. The method according to any one of claims 1 to 5, characterized in that, The first signal also includes the echo signal of the third signal and the interference signal corresponding to the third signal, the third signal being transmitted through the third port.

7. A communication method, characterized in that, include: Receive first information, the first information being used to indicate a first isolation degree and / or a first threshold value, the first isolation degree being the isolation degree between a first port and a second port, and the first threshold value being related to the start-up control value of analog automatic gain control (AAGC); Send a second message, which is determined by the first message, and the second message is used to indicate attenuation of the second signal; Receive the second signal after the attenuation; Sensing processing is performed based on the attenuated second signal.

8. The method according to claim 7, characterized in that, The second information includes an attenuation value, which is greater than or equal to the difference between the first power and the first threshold value; Alternatively, the attenuation value may be zero; The first power is determined by the first isolation degree and / or the transmission power of the first signal, which is transmitted through the first port.

9. The method according to claim 8, characterized in that: When the first power is greater than the first threshold value, the attenuation value is greater than or equal to the difference between the first power and the first threshold value; When the first power is less than or equal to the first threshold value, the attenuation value is zero.

10. The method according to any one of claims 7 to 9, characterized in that the second information further includes a decay period, the decay period being related to the first symbol.

11. A communication device, characterized in that, The apparatus includes a unit for performing the method as described in any one of claims 1 to 6.

12. A communication device, characterized in that, The apparatus includes a unit for performing the method as described in any one of claims 7 to 10.

13. A communication system, characterized in that, Includes the communication device as described in claim 11 and / or the communication device as described in claim 12.

14. A communication device, characterized in that, The device includes a processor coupled to a memory for storing computer programs or instructions, the processor for executing the computer programs or instructions in the memory, causing the device to perform the method as described in any one of claims 1 to 10.

15. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program or instructions that, when executed on a computer, cause the computer to perform the method as described in any one of claims 1 to 10.

16. A chip or chip system, characterized in that, Includes: a processor for retrieving and running a computer program from memory, causing a communication device equipped with the chip system to perform the method of any one of claims 1 to 10.

17. A computer program product, characterized in that, When the computer program product is run on a computer, it causes the computer to perform the method as described in any one of claims 1 to 10.

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