Communication method and apparatus

Abstract

A communication method and apparatus. The method comprises: receiving first indication information, wherein the first indication information is used for indicating N feedback periods and N feedback conditions, the N feedback periods are in one-to-one correspondence to the N feedback conditions, and the N feedback conditions include a first feedback condition; when a first sensing target satisfies the first feedback condition, sending information of the first sensing target on the basis of a first feedback period, wherein the first sensing target is determined on the basis of a first signal, and the first feedback condition corresponds to the first feedback period. By means of the method, a terminal can select appropriate feedback periods for different sensing targets to report corresponding sensing results, thereby improving the feedback efficiency of the sensing results.

Description

Communication method and apparatus

[0001] Cross Reference to Related Applications

[0002] This application claims priority to the Chinese Patent Application No. 202411034900.8, filed on July 30, 2024, and entitled "A Communication Method and Apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the field of communication, in particular to a communication method and apparatus. BACKGROUND

[0004] With the development of network technology, a base station can utilize a communication signal to implement sensing functions such as detection, positioning, identification and imaging of a target object. A wireless communication system composed of a base station and a terminal, or a base station and a base station, can utilize the sensing functions to obtain surrounding environment information, intelligently and accurately allocate communication resources, tap potential communication capabilities, and enhance user experience.

[0005] Taking a communication system composed of a base station and a terminal as an example, one possible way is that the base station transmits a sensing signal, and the terminal receives a reflected echo signal of the sensing signal after being reflected by a sensing target. The terminal can obtain a sensing result of the sensing target according to the received echo signal.

[0006] In the current feedback mechanism, the terminal feeds back a sensing result according to a feedback period configured by the base station. For one feedback period, there can be both dynamic sensing targets and static sensing targets within the sensing range of the terminal. For example, there are two sensing targets within the sensing range of the terminal, a moving car and a building, wherein the moving car can be understood as a dynamic sensing target, and the building can be understood as a static sensing target. For the static building, there is no requirement for speed measurement, and therefore the terminal only needs to use fewer echo signals to complete the building sensing, and the feedback period required for the building sensing is shorter. For the moving car, speed measurement is required, and therefore more echo signals need to be used to complete the speed measurement. Therefore, the feedback period required for the moving car is longer. In order to successfully obtain the sensing results of the building and the moving car, the base station will configure a shorter feedback period to the terminal. For the moving car, this configuration mode requires the terminal to frequently report the sensing result of the moving car, and the shorter feedback period exists resource waste for the terminal to sense the moving car. SUMMARY

[0007] The embodiments of the present application provide a communication method and apparatus to realize the terminal feeding back the sensing results of different types of sensing targets to the base station.

[0008] In a first aspect, the present application provides a communication method, which can be performed by a terminal or a chip in the terminal, and the method comprises: receiving first indication information, wherein the first indication information is used to indicate N feedback periods and N feedback conditions, the N feedback periods correspond to the N feedback conditions one by one, the N feedback conditions comprise a first feedback condition, and N is a positive integer; receiving a first signal; and in a case where a first sensing target meets the first feedback condition, sending information of the first sensing target according to a first feedback period, wherein the first sensing target is determined according to the first signal, and the first feedback condition corresponds to the first feedback period.

[0009] By using the above method, the access network device can configure multiple feedback periods and feedback conditions corresponding to each feedback period for the terminal. After obtaining the information of the sensing target, the terminal can determine which feedback period to use to send the information of the sensing target. Then, for the sensing targets meeting different feedback conditions, the terminal can use different feedback periods for feedback, that is, the terminal can select appropriate feedback periods for different sensing targets to report the corresponding sensing results, thereby improving the utilization rate of feedback resources and the feedback efficiency of the sensing results.

[0010] In a possible design, the N feedback conditions indicate N regions; the first feedback condition indicates a first region in the N regions; and the first sensing target meeting the first feedback condition means that the first sensing target is located in the first region.

[0011] In a possible design, the N feedback conditions indicate N Doppler shift ranges; the first feedback condition indicates a first Doppler shift range in the N Doppler shift ranges; and the first sensing target meeting the first feedback condition means that the Doppler shift of the first sensing target belongs to the first Doppler shift range.

[0012] In a possible design, the information of the first sensing target further comprises a sensing duration of the first sensing target; and the sensing duration of the first sensing target is a total duration of the first signal received in the first feedback period.

[0013] In a possible design, the N feedback conditions comprise a second feedback condition; and in a case where a second sensing target meets the second feedback condition, information of the second sensing target is sent according to a second feedback period, wherein the second sensing target is determined according to a second signal, and the second feedback condition corresponds to the second feedback period.

[0014] In a possible design, second indication information is received, wherein the second indication information indicates an updated feedback period and feedback condition.

[0015] With the above design, the access network device can update the feedback period and / or the feedback condition.

[0016] In a possible design, the first indication information is carried through downlink control information or radio resource control signaling, and / or the second indication information is carried through downlink control information or radio resource control signaling.

[0017] In a second aspect, the present application provides a communication method, which can be performed by an access network device or a chip in the access network device, and the method comprises the following steps.

[0018] With the above method, the access network device can configure a terminal with multiple feedback periods and feedback conditions corresponding to each feedback period, and determine a feedback period used by the terminal according to received information of a sensing target.

[0019] In a possible design, when the feedback period corresponding to the first sensing target is determined according to the information of the first sensing target, the feedback condition satisfied by the first sensing target is determined according to the information of the first sensing target; the feedback condition satisfied by the first sensing target is one of the N feedback conditions; and the feedback period corresponding to the first sensing target is determined according to the feedback condition satisfied by the first sensing target, and the feedback period corresponding to the first sensing target is the feedback period corresponding to the feedback condition satisfied by the first sensing target.

[0020] In a possible design, the N feedback conditions indicate N regions, and the information of the first sensing target comprises location information of the first sensing target; when the feedback condition satisfied by the first sensing target is determined according to the information of the first sensing target, it is determined according to the location information of the first sensing target that the first sensing target is located in a first region, wherein the N regions comprise the first region; and the feedback period corresponding to the first sensing target is the feedback period corresponding to the first region.

[0021] In a possible design, the N feedback conditions indicate N Doppler shift ranges, the information of the first sensing target includes a Doppler shift of the first sensing target; when it is determined according to the information of the first sensing target that the first sensing target satisfies a feedback condition, it is determined according to the Doppler shift of the first sensing target that the Doppler shift of the first sensing target belongs to a first Doppler shift range; and the feedback period corresponding to the first sensing target is a feedback period corresponding to the first Doppler shift range.

[0022] In a possible design, the second indication information is sent according to the information of the first sensing target, and the second indication information indicates an updated feedback period and feedback condition.

[0023] Some possible designs and advantages of the second aspect can refer to the first aspect, and will not be repeated here.

[0024] In a third aspect, the present application provides a communication method, which can be executed by a terminal or a chip in the terminal, and the method includes: sending first information, the first information indicating K feedback conditions satisfied by M sensing targets, M and K being positive integers; receiving second information, the second information indicating K feedback periods, the K feedback periods corresponding to the K feedback conditions one by one; and sending information of the M sensing targets according to the K feedback periods.

[0025] By using the above method, the terminal can inform the access network device of which feedback conditions are satisfied by the sensing targets, that is, which types the current sensing targets belong to, and then receive the feedback periods respectively configured by the access network device for different feedback conditions satisfied by the current sensing targets, and the terminal reports the information of the sensing targets satisfying different feedback conditions by using the corresponding feedback periods. Therefore, the access network device can flexibly configure the feedback periods.

[0026] In a possible design, before the first information is sent, third information is received, the third information being used to indicate the N feedback conditions, the K feedback conditions belonging to the N feedback conditions, N being a positive integer, and K≤N.

[0027] In a possible design, the K feedback conditions indicate K regions; and there is at least one sensing target in the M sensing targets in any one of the K regions.

[0028] In a possible design, the K feedback conditions indicate K Doppler shift ranges; the number of sensing targets whose Doppler shifts belong to any one of the K Doppler shift ranges is greater than or equal to 1, and the sum of the numbers of sensing targets corresponding to the K Doppler shift ranges is M.

[0029] In one possible design, the information of the M sensing targets includes information of a first sensing target, and the information of the first sensing target includes a sensing duration of the first sensing target, which is a total duration of the first signals received in a feedback period of the first sensing target.

[0030] In one possible design, the second information is carried by downlink control information or radio resource control signaling, and / or the third information is carried by downlink control information or radio resource control signaling.

[0031] In a fourth aspect, a communication method is provided. The method includes receiving first information, where the first information indicates K feedback conditions, K being a positive integer; determining K feedback periods according to the K feedback conditions, where the K feedback periods correspond to the K feedback conditions one-to-one; and sending second information, where the second information indicates the K feedback periods, and information of a sensing target is received according to the K feedback periods.

[0032] With the above method, the access network device can learn which feedback conditions are satisfied by the sensing target determined by the terminal, configure feedback periods for different feedback conditions, and receive information of the sensing target according to the configured feedback periods. Therefore, the access network device can flexibly configure feedback periods in combination with its own resource occupation and the number of feedback periods to be configured.

[0033] In one possible design, the third information is sent before the first information, where the third information is used to indicate the N feedback conditions, and the K feedback conditions belong to the N feedback conditions, N being a positive integer and K≤N.

[0034] With the above design, the access network device can configure multiple feedback conditions for the terminal in advance.

[0035] In one possible design, the K feedback conditions indicate K regions or K Doppler shift ranges.

[0036] Some possible designs and benefits of the fourth aspect can be found in the third aspect, and are not repeated here.

[0037] In a fifth aspect, the present application provides a communication apparatus, comprising: a transceiver and a processing unit; the processing unit invokes the transceiver to perform the following steps: receiving first indication information, the first indication information being used to indicate N feedback periods and N feedback conditions, the N feedback periods corresponding to the N feedback conditions one by one, the N feedback conditions comprising a first feedback condition, and N being a positive integer; receiving a first signal; and in a case that a first sensing target meets the first feedback condition, sending information of the first sensing target according to a first feedback period, wherein the first sensing target is determined according to the first signal, and the first feedback condition corresponds to the first feedback period.

[0038] Some possible designs and beneficial effects of the fifth aspect can refer to the first aspect, and will not be repeated here.

[0039] In a possible design, the N feedback conditions comprise a second feedback condition; and the transceiver is configured to, in a case that a second sensing target meets the second feedback condition, send information of the second sensing target according to a second feedback period, wherein the second sensing target is determined according to a second signal, and the second feedback condition corresponds to the second feedback period.

[0040] In a possible design, the transceiver is configured to receive second indication information, the second indication information indicating updated feedback periods and feedback conditions.

[0041] In a sixth aspect, the present application provides a communication apparatus, comprising: a transceiver and a processing unit; the transceiver is configured to: send first indication information, the first indication information being used to indicate N feedback periods and N feedback conditions, the N feedback periods corresponding to the N feedback conditions one by one, and N being an integer greater than or equal to 2; and receive information of a first sensing target; and the processing unit is configured to: determine a feedback period corresponding to the first sensing target according to the information of the first sensing target, the feedback period corresponding to the first sensing target being one of the N feedback periods.

[0042] Some possible designs and beneficial effects of the sixth aspect can refer to the second aspect, and will not be repeated here.

[0043] In a possible design, the processing unit is configured to, when determining the feedback period corresponding to the first sensing target according to the information of the first sensing target, determine a feedback condition met by the first sensing target according to the information of the first sensing target, the feedback condition met by the first sensing target being one of the N feedback conditions; determine the feedback period corresponding to the first sensing target according to the feedback condition met by the first sensing target, the feedback period corresponding to the first sensing target being a feedback period corresponding to the feedback condition met by the first sensing target.

[0044] In a possible design, the N feedback conditions indicate N regions, the information of the first sensing target comprises location information of the first sensing target; the processing unit is configured to determine, when it is determined according to the information of the first sensing target that the first sensing target satisfies a feedback condition, that the first sensing target is located in a first region according to the location information of the first sensing target, where the N regions comprise the first region; and the feedback period corresponding to the first sensing target is a feedback period corresponding to the first region.

[0045] In a possible design, the N feedback conditions indicate N Doppler shift ranges, the information of the first sensing target comprises a Doppler shift of the first sensing target; the processing unit is configured to determine, when it is determined according to the information of the first sensing target that the first sensing target satisfies a feedback condition, that the Doppler shift of the first sensing target belongs to a first Doppler shift range according to the Doppler shift of the first sensing target; and the feedback period corresponding to the first sensing target is a feedback period corresponding to the first Doppler shift range.

[0046] In a possible design, the transceiver is configured to send second indication information according to the information of the first sensing target, where the second indication information indicates an updated feedback period and feedback condition.

[0047] In a seventh aspect, the present application provides a communication apparatus, which comprises a transceiver and a processing unit; the processing unit invokes the transceiver to perform the following steps: sending first information, where the first information indicates K feedback conditions satisfied by M sensing targets, M and K are positive integers; receiving second information, where the second information indicates K feedback periods, the K feedback periods correspond to the K feedback conditions one by one; and sending information of the M sensing targets according to the K feedback periods.

[0048] Some possible designs and advantages of the seventh aspect can refer to the third aspect, and will not be repeated here.

[0049] In a possible design, the transceiver is configured to receive third information before sending the first information, where the third information is used to indicate the N feedback conditions, the K feedback conditions belong to the N feedback conditions, N is a positive integer, and K≤N.

[0050] In an eighth aspect, the present application provides a communication apparatus, which comprises a transceiver and a processing unit; the processing unit invokes the transceiver to perform the following steps: receiving first information, where the first information indicates K feedback conditions satisfied by M sensing targets, M and K are positive integers; sending second information, where the second information indicates K feedback periods, the K feedback periods correspond to the K feedback conditions one by one; and receiving information of the M sensing targets according to the K feedback periods.

[0051] The processing unit invokes the transceiving unit to perform receiving first information, the first information indicating K feedback conditions, K being a positive integer; determining K feedback periods according to the K feedback conditions, the K feedback periods corresponding to the K feedback conditions one by one; and sending second information, the second information indicating the K feedback periods, and receiving information of a sensing target according to the K feedback periods.

[0052] Some possible designs and advantages of the eighth aspect can refer to the fourth aspect, and will not be repeated.

[0053] In a possible design, the transceiving unit is configured to, before receiving the first information, send third information, the third information being used to indicate the N feedback conditions, and the K feedback conditions belonging to the N feedback conditions, N being a positive integer, and K≤N.

[0054] In the ninth aspect, the present application provides a communication apparatus, which can be the first apparatus, or a module or unit (for example, a chip, or a chip system, or a circuit) corresponding to the method / operation / step / action described in any one of the first aspect or the third aspect, or can be matched with the first apparatus.

[0055] In the tenth aspect, the present application provides a communication apparatus, which can be the second apparatus, or a module or unit (for example, a chip, or a chip system, or a circuit) corresponding to the method / operation / step / action described in any one of the second aspect or the fourth aspect, or can be matched with the second apparatus.

[0056] In the eleventh aspect, the present application provides a communication device, including at least one processing element, and at least one storage element used to store programs and data, the at least one processing element being used to read and execute the programs and data stored in the storage element, so that the method described in any one of the aspects of the present application is implemented.

[0057] In a possible design, the communication device further includes the at least one storage element.

[0058] In the twelfth aspect, the present application further provides a computer program, when the computer program is run on a computer, the computer program makes the computer execute the method described in any one of the aspects.

[0059] In a thirteenth aspect, the present application provides a communication apparatus, comprising: an interface circuit and at least one processor; the interface circuit is configured to provide input and / or output of a program or instruction for the at least one processor; the at least one processor is configured to execute the program or instruction so that the communication apparatus can implement the method in any one of the above aspects.

[0060] In a possible implementation, the communication apparatus comprises the at least one memory, and the at least one memory is configured to store the program or instruction.

[0061] In a fourteenth aspect, the present application provides a computer storage medium, wherein the computer storage medium stores a software program, and the software program, when read and executed by one or more processors, can implement the method in any one of the above aspects.

[0062] In a fifteenth aspect, the present application provides a computer program product comprising instructions which, when executed on a computer, cause the computer to carry out the method in any one of the above aspects.

[0063] In a sixteenth aspect, the present application provides a chip system, comprising at least one chip and a memory, and the at least one chip is configured to read and execute a program stored in the memory to implement the method in any one of the above aspects.

[0064] On the basis of the implementation provided in the above aspects, the present application can be further combined to provide more implementations. BRIEF DESCRIPTION OF DRAWINGS

[0065] FIG. 1 shows a schematic diagram of a possible communication system in the present application;

[0066] FIG. 2 shows an example diagram of an O-RAN system in the present application;

[0067] FIG. 3 shows a network element function division and protocol layer structure diagram of an O-RAN device in the present application;

[0068] FIG. 4 shows a schematic diagram of a common architecture of a RAN chip in the present application;

[0069] FIG. 5A shows a schematic diagram of single station sensing in the present application;

[0070] FIG. 5B shows a schematic diagram of double station sensing in the present application;

[0071] FIG. 6 shows a schematic diagram of a communication and sensing integrated scenario in the present application;

[0072] FIG. 7 shows an example schematic diagram of a communication and sensing integrated scenario in the present application;

[0073] FIG. 8 shows a schematic diagram of a possible sensing scenario in the present application;

[0074] FIG. 9 shows a schematic diagram of a possible communication method in the present application;

[0075] FIG. 10 shows a schematic diagram of a possible area division in the present application;

[0076] FIG. 11 shows a schematic diagram of different types of sensing targets in the present application;

[0077] FIG. 12 shows a schematic diagram of a possible communication method in the present application;

[0078] FIG. 13 shows a schematic diagram of a possible communication device in the present application;

[0079] FIG. 14 shows a schematic diagram of another possible communication device in the present application. DETAILED DESCRIPTION

[0080] The specific implementation manners of the present application will be described below in conjunction with the accompanying drawings in the embodiments of the present application. However, the implementation manners of the present application can also include combinations of these embodiments without departing from the spirit or scope of the present application, such as using other embodiments and making structural changes. Therefore, the detailed description of the following embodiments should not be interpreted in a limiting sense. The terms used in the embodiment part of the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application.

[0081] The embodiments of the present application can be applied to various communication systems, such as a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD), a worldwide interoperability for microwave access (WIMAX) communication system, a 5G system or a new radio (NR), or a future communication system or other similar communication system, or an ultra wide band (UWB) system, or a wireless fidelity (WiFi) system.

[0082] Fig. 1 shows a possible, non-limiting system diagram. As shown in Fig. 1, the communication system includes a wireless access network 100 and a core network 200, and optionally, the communication system can also include the Internet. The wireless access network 100 can include at least one wireless access network device (e.g., 110a and 110b in Fig. 1) and at least one terminal (e.g., 120a-120j in Fig. 1). The terminal is connected to the wireless access network device in a wireless manner, and the wireless access network device is connected to the core network in a wireless or wired manner. The core network device and the wireless access network device can be independent and different physical devices, or the functions of the core network device and the logical functions of the wireless access network device can be integrated on the same physical device, or a physical device can integrate part of the functions of the core network device and part of the functions of the wireless access network device. The terminals can be connected to each other in a wired or wireless manner, and the wireless access network devices can be connected to each other in a wired or wireless manner. Fig. 1 is only a schematic diagram, and the communication system can also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in Fig. 1.

[0083] The wireless access network device can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation NodeB (gNB) in a 5G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc. The wireless access network device can also be an open RAN (O-RAN or ORAN), or a cloud radio access network (CRAN). The wireless access network device can also be a communication system that integrates two or more of the above systems. The wireless access network device can be a macro base station (e.g., 110a in Fig. 1), a micro base station or an indoor station (e.g., 110b in Fig. 1), a relay node or a donor node, etc.

[0084] In addition, the wireless access network device can also be a module or unit that completes the function of the base station part, for example, can be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. In different systems, the CU (or CU-CP and CU-UP), DU or RU can also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, the CU can also be referred to as O-CU (open CU), the DU can also be referred to as O-DU, the CU-CP can also be referred to as O-CU-CP, the CU-UP can also be referred to as O-CU-UP, and the RU can also be referred to as O-RU. For the convenience of description, the CU, CU-CP, CU-UP, DU and RU are taken as examples for description in this application. Any one of the CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0085] Embodiments of the present application do not limit the specific technology and specific device form adopted by the wireless access network device. For the convenience of description, the wireless access network device will be referred to as the access network device in the following description. It can be understood that the access network device can be referred to as a communication apparatus. For example, the access network device can be understood as an apparatus with access network device function. For example, the apparatus with access network device function can be an access network device; or part of the elements in the access network device, such as a CU, a DU, etc. It can also be an apparatus capable of supporting the access network device to implement the function, such as a chip system, a hardware circuit, a software module, or a hardware circuit plus a software module, which can be installed in the access network device or can be used in matching with the access network device. In the embodiments of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices.

[0086] The terminal can also be referred to as a terminal device, a user equipment (UE), a mobile station, a mobile terminal, etc. The terminal can be widely applied to various scenarios, such as device-to-device (D2D), vehicle to everything (V2X) communication, MTC, IoT, virtual reality, augmented reality, industrial control, automatic driving, remote medical treatment, smart power grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, a drone, a helicopter, an airplane, a ship, a robot, a mechanical arm, a smart home device, etc.

[0087] Embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal. It can be understood that the terminal can be referred to as a communication device. For example, the terminal can be understood as a device with terminal functions. For example, the device with terminal functions can be a terminal; it can also be a device capable of supporting the terminal to realize the function, such as a chip system, a hardware circuit, a software module, or a hardware circuit plus a software module, which can be installed in the terminal or can be used with the terminal.

[0088] FIG. 2 shows an example diagram of an O-RAN system. It should be understood that the O-RAN system can also include other components in addition to the components shown in FIG. 3, which are not specifically limited here. As shown in FIG. 2, the access network device can communicate with the core network (CN) through the backhaul, and can communicate with the terminal device through the air interface. For example, the access network device can include a baseband unit (BBU) and a radio unit (RU). Among them, the BBU includes at least one CU and at least one DU, and the CU and the DU can communicate through at least one midhaul. The BBU communicates with the core network through the backhaul, and the RU communicates with at least one terminal device through the air interface. The BBU communicates with at least one RU through the fronthaul, and the BBU and the RU can be co-located or not.

[0089] FIG. 3 is a diagram showing the network element function division and protocol layer structure of an O-RAN device. It should be noted that the configuration of the CU and the DU shown in FIG. 3 is only an example, and the CU and the DU can also be configured to have functions as needed.

[0090] In some examples, the CU is a logical node that hosts radio resource control (RRC) layer, service data adaptation protocol (SDAP) layer, packet data convergence protocol (PDCP) layer, and other control functions. The CU is connected to network nodes such as core network through some interfaces, which can be E2 interface or other interfaces. Optionally, the CU can have part of the functions of the core network. The CU (e.g., PDCP layer and higher layers) is connected to the DU (e.g., RLC layer and lower layers) through some interfaces, which can be F1 interface or other interfaces. In some examples, these interfaces (e.g., F1 interface) can provide control plane (C-Plane) and user plane (U-Plane) functions (e.g., interface management, system information management, UE context management, RRC message transfer, etc.). F1AP is an application protocol for F1 interface, which defines the signaling procedures for F1 in some examples. The F1 interface supports control plane F1-C and user plane F1-U.

[0091] In some examples, the CU can be split into a CU-CP (control unit-control plane) and a CU-UP (control unit-user plane), where the CU-CP is a logical node carrying the RRC layer and the PDCP-C (control plane part of PDCP) layer, used to implement the control plane function of the CU. The CU-CP can interact with a network element in the core network used to implement the control plane function. The network element in the core network used to implement the control plane function can be an access and mobility function network element, such as an access and mobility management function (AMF) in a 5G system. The AMF network element is used to be responsible for mobility management in a mobile network, such as location updating of a terminal device, registration of the terminal device to a network, handover of the terminal device, and the like. The CU-UP is a logical node carrying the SDAP layer and the PDCP-U (user plane part of PDCP) layer, used to implement the user plane function of the CU. The CU-UP can interact with a network element in the core network used to implement the user plane function. The network element in the core network used to implement the user plane function, for example, a user plane function (UPF) in a 5G system, is used to be responsible for forwarding and receiving data in a terminal device. The above configuration of the CU and the DU is merely an example, and the CU and the DU can have other functions according to needs. For example, the CU or the DU can be configured to have more protocol layer functions, or the CU or the DU can be configured to have partial processing functions of the protocol layers. For example, partial functions of the RLC layer and functions of the protocol layers above the RLC layer are arranged in the CU, and the remaining functions of the RLC layer and functions of the protocol layers below the RLC layer are arranged in the DU. For another example, the functions of the CU or the DU can be divided according to service types or other system requirements, for example, functions requiring to meet a shorter delay requirement in processing time are arranged in the DU, and functions not requiring to meet the delay requirement are arranged in the CU.

[0092] In some examples, the DU is a logical node carrying a radio link control (RLC) layer, a medium access control (MAC) layer, a higher physical layer (higher PHY), and other functions. In some examples, the DU can control at least one RU. The DU is connected to the RU through some interfaces, which can be a front-haul interface. In some examples, the higher physical layer includes part of the PHY layer processing, such as forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, and the like.

[0093] In some examples, an RU is a logical node that hosts lower physical layer (Lower PHY) and radio frequency (RF) processing. In some examples, an RU can be a 3GPP transmission reception point (TRP) or a remote radio head (RRH) or other similar functional entity. In some examples, the lower physical layer includes portions of PHY processing such as fast Fourier transform (FFT), inverse fast Fourier transformation (IFFT), digital beamforming and filtering, and other processing functions. An RU communicates with one or more UEs over a wireless link.

[0094] A DU and an RU can or can not be co-located. A DU and an RU exchange control plane information and user plane information over a lower-layer split-CUS-plane (LLS-CUS) interface via a fronthaul link. The LLS-CUS can include a LLS-C interface and a LLS-U interface that provide control plane (C-Plane) and user plane (U-Plane), respectively. In some examples, the control plane (C-Plane) refers to real-time control between a DU and an RU. A DU and an RU have a LLS-M interface of the fronthaul link to exchange management information, and the management plane (M-Plane) refers to non-real-time management operations between the DU and the RU.

[0095] A DU and an RU can cooperate to collectively implement the functionality of the PHY layer. A DU can be connected to one or more RUs. The functionality that a DU and an RU have can be configured in multiple ways depending on the design. For example, a DU is configured to implement baseband functionality and an RU is configured to implement mid- RF functionality. As another example, a DU is configured to implement high-layer functionality in the PHY layer and an RU is configured to implement low-layer functionality in the PHY layer or to implement the low-layer functionality and RF functionality. The high-layer functionality in the PHY layer can include a portion of the functionality of the PHY layer that is closer to the MAC layer, and the low-layer functionality in the PHY layer can include another portion of the functionality of the PHY layer that is closer to the mid-RF side.

[0096] FIG. 4 is a diagram illustrating a common architecture of a RAN chip. It is noted that the common architecture of the RAN chip shown in FIG. 4 is merely an example and can be configured according to actual needs.

[0097] Exemplarily, the RAN chip common architecture is divided into CU, DU and RU. The CU is a platform that performs upper layer L2 and L3 functions. The fronthaul and backhaul interfaces are used to carry the traffic between the CU and the DU and between the CU and the core network. The DU performs L1 and part of L2 functions, and the RU performs L1 computation and RF digital part functions. The fronthaul and backhaul interfaces are used to carry the traffic between the RU and the DU and between the CU and the DU. The integrated DU includes the above-mentioned DU and RU functions.

[0098] The CU / DU hardware includes a chassis platform, a mainboard, peripherals and cooling equipment. The mainboard contains a processing unit, memory, internal I / O interface and external connection port. The hardware accelerator design has an interface, and the hardware function components include storage of software, hardware and system debugging interface, and a single board management controller.

[0099] The DU system is usually implemented using a multi-core processor and one or more hardware accelerators. Part of the DU protocol stack can be implemented in software running on the multi-core processor, and the computation-intensive L1 and L2 functions can be offloaded to hardware accelerators based on field programmable gate array (FPGA) / graphics processing unit (GPU); or all L1 functions are offloaded to hardware accelerators based on FPGA / GPU, while other protocol stack contents are implemented in software running on the processor; or all the protocol stack is implemented in software running on the processor. The hardware accelerator supports interconnection with an x86 or non-x86 processor. Similarly, the accelerator has a multi-channel peripheral component interconnect express (PCIe) interface pointing to the CPU, and is externally connected through a GbE connection.

[0100] The RU includes three parts: an O-RAN processing unit (OPU), a digital processing unit (DPU) of the O-RU, and an RF processing unit of the O-RU.

[0101] The OPU receives enhanced common public radio interface (eCPRI) frames from the O-RAN fronthaul and performs the fronthaul interface, the lowest layer L1 (encoding, scrambling, modulation, layer mapping, precoding), synchronization, beamforming, and resource unit mapping. The OPU can be implemented as a CPU, FPGA, or application specific integrated circuit (ASIC).

[0102] The DPU performs synchronization, digital down conversion (DDC) (digital down conversion in the UL), digital up conversion (DUC) (digital up conversion in the DL), crest factor reduction (CFR), and digital pre-distortion (DPD) to improve power amplifier efficiency by reducing the peak to average power ratio (PAPR) / adjacent channel leakage ratio (ACLR) of the RF front end. The DPU can be implemented as an FPGA or ASIC.

[0103] The RF processing unit of the O-RU includes a transceiver module, up / down converters, power amplifiers, low noise amplifiers, Tx / Rx filters. All conversions between the analog and digital domains (digital-to-analog converters and analog-to-digital converters) (e.g., RF sampling, frequency conversion using RF, local oscillator, and intermediate frequency mixing in upconversion and downconversion) are performed within the transceiver module. Note that the physical and logical partitions within the RF processing unit do not require specific boundaries.

[0104] It can be understood that the network architecture and service scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that, with the evolution of network architecture and the appearance of new service scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0105] The following briefly describes the technical concepts related to the present application:

[0106] 1. Perception target

[0107] The sensing target can also be called a sensing point, a unit point, or a reflection point. The sensing target can be a static object, such as the surrounding physical environment, like buildings. The sensing target can also be a dynamic object, such as a drone or a car; this application does not limit the scope of the application to this.

[0108] 2. Sensing signals

[0109] The sensing signal is a signal used for sensing, and it can be a signal whose initial amplitude and phase can be known by the receiver. Optionally, the sensing signal can be a reference signal, such as CSI-RS or a sounding reference signal (SRS), and the initial amplitude and phase information of the sensing signal can be pre-configured to the receiver by means of a configuration sequence, etc. The sensing signal can also be a data signal, and the receiver can calculate the initial amplitude and phase of each data signal by means of a known modulation method such as data verification. The sensing signal can also be any other signal whose initial amplitude and phase can be known by the receiver. This application does not limit the presentation form of the sensing signal.

[0110] 3. Perception Results

[0111] The perception result, also known as perception data or perception information, refers to the relevant information about the perceived target acquired by the receiving end through perception signals. For example, the perception result can be a range-angle spectrum or a point cloud. This application does not limit the specific form of the perception result.

[0112] The distance-angle spectrum refers to a two-dimensional matrix or spectrum, for example, with time delay as the horizontal axis and angle as the vertical axis, and the energy-to-interference-plus-noise ratio (SNR) ratio of each point as an element in the distance-angle spectrum.

[0113] A point cloud is a dataset of points in space that can represent three-dimensional shapes or objects. The position of each point in a point cloud is described by a set of Cartesian coordinates, and some may contain information such as the intensity of the object's reflective surface and its velocity.

[0114] In the fifth generation mobile communication system (the 5 th In the evolution from 5G (generation, 5G) to 5G-advanced (5G-A) technology, integrated communication and sensing technology is considered one of the key technologies for expanding the service capabilities of mobile communication networks. The core idea of ​​this technology is to add sensing capabilities to the mobile communication network, building the ability to detect, track, and image targets, thereby integrating communication and sensing capabilities into a single network to achieve harmonious coexistence and even mutual benefit.

[0115] The technical principle of perception is different from that of communication. In communication, the sending end modulates information on radio waves and sends it to the receiving end, and the receiving end demodulates the signal carried on the radio waves to obtain the information. In perception, the sending end sends radio waves to a specific direction, and when the radio waves irradiate the target surface, reflected waves are formed, so that the receiving end obtains the position, speed and type of the target by receiving and processing the reflected waves.

[0116] Perception can be generally divided into two modes: single-station perception and double-station perception. In single-station perception, the sending end and the receiving end of the perception signal are the same device. From the perspective of the perception signal flow, the perception station not only sends the perception signal, but also receives the signal reflected on the target surface (also known as the echo signal). Therefore, the single-station perception mode is also known as the self-transmission and self-reception mode, as shown in FIG. 5A. For double-station perception, the sending end and the receiving end of the perception signal are two different devices. From the perspective of the perception signal flow, the perception station A sends the perception signal, and the signal reflected on the target surface is received by the perception station B. Therefore, the double-station perception mode is also known as the A-transmission and B-reception mode, as shown in FIG. 5B.

[0117] The application scenario of the present application is a communication and perception integrated scenario, as shown in FIG. 6 below, which gives a possible, non-limiting system diagram. The access network device and the terminal in the communication network can perform perception on objects without communication function while communicating.

[0118] In FIG. 7, (1) is a self-transmission and self-reception scenario of the base station, (2) is a self-transmission and self-reception scenario of the UE, (3) is an A-transmission and B-reception scenario of the base station, (4) is an A-transmission and B-reception scenario of the UE, (5) is a base station transmission and UE reception scenario, and (6) is a UE transmission and base station reception scenario. Here, “transmission” can be understood as “sending a perception signal”, and “reception” can be understood as “receiving an echo signal”.

[0119] As shown in FIG. 8, it is a possible perception scenario. It is assumed that there are two perception targets in the perception range of the terminal, a moving car and a building. For the stationary building, there is no requirement for speed measurement, so the terminal only needs to use fewer echo signals to complete the building perception. For the moving car, speed measurement is required, so more echo signals need to be used to complete the speed measurement. Therefore, for perception targets with different attributes or types, how to reasonably configure the period (i.e., the feedback period) for transmitting the information of the perception target is a problem worthy of attention. For example, the feedback period of the CSI report is generally fixed. If the terminal feeds back the perception results of the car and the building to the base station with the same feedback period, it may cause a certain waste of resources.

[0120] Based on this, in order to realize the terminal feeding back the sensing result of different types of sensing targets to the base station and improve the sensing result feedback efficiency, the embodiments of the present application provide a communication method as shown in FIG. 9 and FIG. 12. It can be understood that the access network device and the terminal are taken as the execution subject for description in the following embodiments. Among them, the access network device can be referred to as a communication apparatus. For example, the access network device can be understood as an apparatus with the function of the access network device. For example, the apparatus with the function of the access network device can be the access network device; or part of the elements in the access network device, such as CU, DU, etc. It can also be an apparatus capable of supporting the access network device to realize the function, such as a chip system, a hardware circuit, a software module, or a hardware circuit plus a software module, which can be installed in the access network device or can be used in matching with the access network device. In the embodiments of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices. The terminal can be referred to as a communication apparatus. For example, the terminal can be understood as an apparatus with the function of the terminal. For example, the apparatus with the function of the terminal can be the terminal; or an apparatus capable of supporting the terminal to realize the function, such as a chip system, a hardware circuit, a software module, or a hardware circuit plus a software module, which can be installed in the terminal or can be used in matching with the terminal.

[0121] As shown in FIG. 9, the present application provides a communication method. The method comprises:

[0122] Step 900: The access network device sends first indication information to the terminal. Correspondingly, the terminal receives the first indication information from the access network device.

[0123] Among them, the first indication information is used to indicate N feedback periods and N feedback conditions, the N feedback periods and the N feedback conditions are one-to-one corresponding, the N feedback conditions include the first feedback condition, and N is a positive integer.

[0124] Exemplarily, the first indication information can be carried by a downlink control information (DCI) or an RRC message. For example, when the first indication information is carried by the RRC signaling, first, the CU sends the RRC signaling to the DU, then the DU sends the RRC signaling to the RU, and finally reaches the terminal side; when the first indication information is carried by the DCI, the DCI is sent from the DU to the RU, and finally reaches the terminal side.

[0125] Step 910: The terminal receives the first signal.

[0126] Exemplarily, the access network device sends a sensing signal, the sensing signal is reflected on a first sensing target surface, a first signal is a signal received by the terminal after being reflected by the first sensing target, that is, the first signal is an echo signal of the sensing signal. Further, the terminal can determine information of the first sensing target according to the first signal. Wherein, the information of the first sensing target, also known as the sensing result of the first sensing target. For example, the information of the first sensing target can include the Doppler shift of the first sensing target, the position information of the first sensing target, the acceleration of the first sensing target, the radar cross section (RCS) of the first sensing target, etc., which are not limited by the present application.

[0127] Step 920: In the case that the first sensing target satisfies the first feedback condition, the terminal sends the information of the first sensing target to the base station according to the first feedback period. Correspondingly, the base station receives the information of the first sensing target from the terminal.

[0128] Wherein, the first feedback condition corresponds to the first feedback period, that is, the first feedback condition corresponds to the first feedback period in the N feedback periods.

[0129] In a possible implementation, the information of the first sensing target further includes the sensing duration of the first sensing target. Wherein, the sensing duration of the first sensing target is the total duration of the first signal received by the terminal within the first feedback period. Wherein, the sensing duration of the first sensing target is less than or equal to the first feedback period. Exemplarily, if the moving speed of the first sensing target is fast, the terminal can only detect the first signal in a part of time units (for example, time slots) in the first feedback period, at this time, the sensing duration of the first sensing target is less than the first feedback period.

[0130] In another possible implementation, the terminal sends the information of the first sensing target and the sensing duration of the first sensing target to the base station according to the first feedback period. That is, the sensing duration of the first sensing target can be inside or outside the information of the first sensing target, which is not limited by the present application.

[0131] In some possible embodiments, when the N feedback conditions further include a second feedback condition, in the case that the second sensing target satisfies the second feedback condition, the terminal sends the information of the second sensing target according to the second feedback period, wherein the second feedback condition corresponds to the second feedback period. Exemplarily, the access network device sends a sensing signal, the sensing signal is reflected on a second sensing target surface, a second signal is a signal received by the terminal after being reflected by the second sensing target, that is, the second signal is also an echo signal of the sensing signal. The second sensing target determines according to the second signal.

[0132] The possible implementation of N feedback conditions is described in detail as follows:

[0133] Possible implementation 1: the N feedback conditions can indicate N regions, and the N feedback periods correspond to the N regions one by one. The N regions can be understood as N geographical location regions.

[0134] Exemplarily, the access network device can determine the N regions and the N feedback periods. For example, the access network device can determine the region including the static sensing target and the region including the dynamic sensing target in a self-generating and self-collecting manner. For the region including the dynamic sensing target, since there is a need to measure the speed of the dynamic sensing target, and the sensing result update time is short, the feedback period can be set to 20 ms. For the region including the static sensing target, since there is no requirement to measure the speed of the static sensing target, if the access network device expects a sensing result with better performance, the feedback period can be set to 10 ms, so that the terminal side can obtain a larger signal-to-noise ratio gain by accumulating a large number of echo signals, and if the access network device expects to obtain the sensing result as soon as possible, the feedback period can also be set to 2 ms.

[0135] As shown in FIG. 10, the access network device can determine region A and region B, where region A includes a plurality of buildings, and region B includes a moving car. The access network device can also determine the feedback period corresponding to region A and the feedback period corresponding to region B.

[0136] It can be understood that the specific manner in which the access network device divides the N regions is not limited in the present application.

[0137] Exemplarily, the first feedback condition indicates a first region of the N regions, and the first sensing target satisfying the first feedback condition means that the first sensing target is located in the first region. At this time, the first sensing target satisfying the first feedback condition can be replaced by the first sensing target being located in the first region. For example, the terminal can determine, according to the obtained location information of the sensing target, in which region of the N regions the sensing target is located. According to the above possible implementation 1, the terminal can determine the first sensing target and the location information of the first sensing target according to the first signal, determine that the first sensing target is located in the first region according to the location information of the first sensing target, and send the information of the first sensing target according to the first feedback period, where the first region corresponds to the first feedback period of the N feedback periods.

[0138] In combination with FIG. 10, if the terminal determines that building X is located in region A, the terminal can send the sensing information of building X to the access network device according to the feedback period corresponding to region A. If the terminal determines that car Y is located in region B, the terminal can send the sensing information of car Y to the access network device according to the feedback period corresponding to region B.

[0139] Possible implementation manner 2: N feedback condition indicates N sensing parameter range, and N feedback period corresponds to N sensing parameter range one by one.

[0140] With the above possible implementation manner 2, the terminal can determine the first sensing target and the first sensing parameter according to the first signal, determine that the first sensing parameter belongs to the first sensing parameter range, and then send the information of the first sensing target according to the first feedback period, wherein the first sensing parameter range corresponds to the first feedback period in the N feedback periods.

[0141] Exemplarily, the access network device can determine N sensing parameter ranges and N feedback periods. Wherein, the sensing parameter range can be a Doppler shift range, or an RCS range, or a signal to interference plus noise ratio (SNR) range, etc., which is not limited in the present application.

[0142] For example, as shown in FIG. 11, for different types of sensing targets, the following takes a drone, a car and a building as an example. The speed of the drone is fast, and the Doppler shift is large. The speed of the car is generally lower than that of the drone, and the Doppler shift is also lower than that of the drone. The speed of the building is zero, and the Doppler is also zero. Therefore, the access network device can determine three Doppler shift ranges for the above three types of sensing targets, and determine the corresponding feedback period respectively. For example, for the sensing target represented by the drone, the speed is fast, and the sensing result update time is short. The corresponding feedback period can be set to 10ms. For the sensing target represented by the car, the speed is moderate, and the sensing result update time is generally. The corresponding feedback period can be set to 20ms. For the sensing target represented by the building, the corresponding feedback period can be set according to the requirement of imaging performance, or if the access network device expects to obtain the sensing result as soon as possible, the feedback period can be set to 2ms.

[0143] For example, the RCS of sensing targets of different materials is different. Therefore, the access network device can determine multiple RCS ranges and corresponding feedback periods for sensing targets of different materials, for example, the smaller the RCS, the longer the feedback period, and the larger the RCS, the shorter the feedback period.

[0144] For example, the access network device can also determine multiple SNR ranges and corresponding feedback periods for sensing targets of different SNRs, for example, the smaller the SNR, the longer the feedback period, and the larger the SNR, the shorter the feedback period.

[0145] Exemplarily, the first feedback condition indicates a first Doppler shift range in the N Doppler shift ranges, and the first awareness target satisfying the first feedback condition means that the Doppler shift of the first awareness target belongs to the first Doppler shift range. At this time, the first awareness target satisfying the first feedback condition can be replaced by the Doppler shift of the first awareness target belonging to the first Doppler shift range. For example, the terminal can determine, according to the obtained Doppler shift of the awareness target, which Doppler shift range in the N Doppler shift ranges the Doppler shift of the awareness target belongs to.

[0146] In addition, the above possible implementation manner 1 and possible implementation manner 2 can also be combined. For example, the N feedback conditions are feedback condition 1 and feedback condition 2 respectively, where the feedback condition 1 indicates the region A and the Doppler shift range 1, that is, the information of the awareness target located in the region A and the Doppler shift of which belongs to the Doppler shift range 1 is fed back through the feedback period corresponding to the feedback condition 1. The feedback condition 2 indicates the region B and the Doppler shift range 2. For example, the region A is a no-fly zone of a drone, the region B is not a no-fly zone of a drone, and the Doppler shift range 1 can represent a possible Doppler shift range of the drone.

[0147] Step 930: The access network device determines the feedback period corresponding to the first awareness target according to the information of the first awareness target. The feedback period corresponding to the first awareness target is one of the N feedback periods.

[0148] That is to say, after receiving the information of the first awareness target, the access network device can further determine the feedback period for feeding back the information of the first awareness target.

[0149] Exemplarily, the access network device can determine, according to the information of the first awareness target, a feedback condition satisfied by the first awareness target, where the feedback condition satisfied by the first awareness target is one of the N feedback conditions, the access network device further determines the feedback period corresponding to the first awareness target according to the feedback condition satisfied by the first awareness target, and the feedback period corresponding to the first awareness target is the feedback period corresponding to the feedback condition satisfied by the first awareness target.

[0150] In combination with the above possible implementation manner 1, if the N feedback conditions indicate N regions, the information of the first awareness target includes the position information of the first awareness target, the access network device can determine, according to the position information of the first awareness target, that the first awareness target is located in a first region, where the N regions include the first region, and the feedback period corresponding to the first awareness target is the feedback period corresponding to the first region.

[0151] In a possible implementation, the first indication information comprises N feedback conditions, and the N feedback conditions indicate N Doppler shift ranges. The information of the first sensing target comprises a Doppler shift of the first sensing target. The access network device can determine, according to the Doppler shift of the first sensing target, that the Doppler shift of the first sensing target belongs to a first Doppler shift range, where the feedback period corresponding to the first sensing target is a feedback period corresponding to the first Doppler shift range.

[0152] In a possible implementation, after receiving the information of the first sensing target, the access network device can further send second indication information according to the information of the first sensing target, where the second indication information indicates an updated feedback period and feedback conditions. The second indication information can be carried by DCI or RRC signaling. For example, when the second indication information is carried by RRC signaling, the RRC signaling is first sent by the CU to the DU, and then sent by the DU to the RU, and finally reaches the terminal side; when the second indication information is carried by DCI, the DCI is sent by the DU to the RU, and finally reaches the terminal side.

[0153] The access network device can update part or all of the feedback periods, and / or update part or all of the feedback conditions.

[0154] For example, in the first indication information, the N feedback conditions indicate region A and region B, the feedback period corresponding to region A is 10 ms, and the feedback period corresponding to region B is 20 ms. In the second indication information, the feedback period corresponding to region A is updated to 5 ms, that is, the N feedback conditions remain unchanged, and the feedback period corresponding to part of the feedback conditions is updated.

[0155] For another example, in the first indication information, the N feedback conditions indicate Doppler shift range 1, Doppler shift range 2, Doppler shift range 3, and the feedback periods corresponding to Doppler shift range 1, Doppler shift range 2, and Doppler shift range 3, respectively. In the second indication information, Doppler shift range 1 and Doppler shift range 2 are updated, that is, part of the N feedback conditions changes, but the N feedback periods remain unchanged.

[0156] In addition, as an optional example, after receiving the information of the first sensing target, the access network device can obtain an imaging result of the first sensing target according to the information of the first sensing target. If the imaging result does not meet the imaging performance requirement, the access network device can adjust the first feedback period, for example, lower or raise the first feedback period.

[0157] By using the method, the access network device can configure multiple feedback periods and feedback conditions corresponding to each feedback period for the terminal. After obtaining the information of the sensing target, the terminal can determine which feedback period to use to send the information of the sensing target. Then, for the sensing targets that meet different feedback conditions, the terminal can use different feedback periods for feedback, that is, the terminal can select a suitable feedback period for different sensing targets to report the corresponding sensing result, thereby improving the utilization rate of feedback resources and the feedback efficiency of the sensing result.

[0158] As shown in FIG. 12, the present application provides a communication method. The method comprises:

[0159] Step 1200: The terminal sends first information to the access network device. Correspondingly, the access network device receives the first information from the terminal.

[0160] The first information indicates K feedback conditions met by M sensing targets, and M and K are positive integers.

[0161] Exemplarily, the access network device sends a sensing signal, the terminal receives a backwave signal of the sensing signal, and determines that there are M sensing targets and the information of the M sensing targets according to the received backwave signal.

[0162] Exemplarily, the K feedback conditions can belong to N feedback conditions, wherein the N feedback conditions can be pre-configured or notified to the terminal through third information, N is a positive integer, and K≤N. The N feedback conditions can be referred to the above related content, which will not be described here. For example, the third information can be carried by DCI or RRC signaling. For example, when the third information is carried by RRC signaling, the RRC signaling is first sent from the CU to the DU, and then the RRC signaling is sent from the DU to the RU, and finally reaches the terminal side; when the third information is carried by DCI, the DCI is sent from the DU to the RU, and finally reaches the terminal side.

[0163] In an example, the K feedback conditions indicate K regions, and there is at least one sensing target in the M sensing targets in any one of the K regions. Alternatively, it can be understood that the M sensing targets are distributed in the K regions, and there is at least one sensing target in each of the K regions.

[0164] In another example, the K feedback conditions indicate K Doppler shift ranges, the number of sensing targets whose Doppler shifts belong to any one of the K Doppler shift ranges is greater than or equal to 1, and the sum of the numbers of the sensing targets corresponding to the K Doppler shift ranges is M. Alternatively, it can be understood that the Doppler shift of each of the M sensing targets belongs to any one of the K Doppler shift ranges.

[0165] Example 1, the access network device configures N feedback conditions in advance, assuming N = 5, the 5 feedback conditions indicate area A, area B, area C, area D, and area E. Among them, the terminal determines 5 sensing targets, which are sensing target 1-5, wherein sensing target 1 and sensing target 2 are located in area A, sensing target 3 and sensing target 4 are in area B, and sensing target 5 is in area D. Therefore, the 5 sensing targets are distributed in 3 areas, which are area A, area B and area D. The first information indicates area A, area B and area D.

[0166] Example 2, the access network device configures N feedback conditions in advance, assuming N = 3, the 3 feedback conditions indicate Doppler shift ranges 1-3. Among them, the terminal determines 5 sensing targets, which are sensing target 1-5, wherein the Doppler shift of sensing target 1 belongs to Doppler shift range 1, and sensing targets 2-5 belong to Doppler shift range 3. Therefore, the first information indicates Doppler shift range 1 and Doppler shift range 3.

[0167] Step 1210: The access network device sends the second information to the terminal. Correspondingly, the terminal receives the second information from the access network device.

[0168] Among them, the second information indicates K feedback periods, and the K feedback periods correspond to the K feedback conditions one by one. Illustratively, the second information can be carried by DCI or RRC signaling. For example, when the second information is carried by RRC signaling, first send the RRC signaling to the DU through the CU, then send the RRC signaling to the RU through the DU, and finally reach the terminal side; when the second information is carried by DCI, send the DCI to the RU through the DU, and finally reach the terminal side.

[0169] Illustratively, the access network device can determine the corresponding feedback period according to the received K feedback conditions. Therefore, the access network device can flexibly determine the feedback period corresponding to different feedback conditions according to the current resource usage. For example, the DU determines the corresponding feedback period according to the received K feedback conditions, generates the second information at the encoder, then the DU modulates and encodes it and transmits it to the RU through the eCPRI interface, the RU sends the second information, and the terminal receives the second information, then demodulates at the decoder, and then sends the information of the M sensing targets according to the K feedback periods.

[0170] In combination with the above example 1, the access network device determines the feedback period corresponding to area A, the feedback period corresponding to area B, and the feedback period corresponding to area D. In combination with the above example 2, the access network device determines the feedback period corresponding to Doppler shift range 1 and the feedback period corresponding to Doppler shift range 3.

[0171] In step 1220, the terminal sends information of the M sensing targets according to the K feedback periods. Correspondingly, the access network device receives the information of the M sensing targets.

[0172] In a possible implementation, the information of each sensing target further includes a sensing duration of the sensing target, and the sensing duration of the sensing target is a total duration of the first signals received in the feedback period of the sensing target. The description of the sensing duration can refer to the related content described above, and will not be repeated here.

[0173] In another possible implementation, the terminal sends the information of the M sensing targets and the sensing durations of the M sensing targets according to the K feedback periods.

[0174] With the above method, the terminal can inform the access network device of which feedback conditions are met by the sensing targets, that is, which types the current sensing targets belong to, and then receive the feedback periods respectively configured by the access network device for different feedback conditions met by the current sensing targets, and the terminal reports the information of the sensing targets meeting different feedback conditions by using the corresponding feedback periods. Therefore, the access network device flexibly configures the feedback periods in combination with the resource occupation of the access network device and the number of feedback periods to be configured.

[0175] It can be understood that, in order to implement the functions in the above embodiments, each communication apparatus (for example, a terminal or an access network device, etc.) includes a hardware structure and / or a software module corresponding to each function. Those skilled in the art should easily realize that, in combination with the units and method steps of each example described in the embodiments disclosed in the present application, the present application can be realized in the form of hardware or a combination of hardware and computer software. Whether a certain function is implemented in hardware or computer software driven hardware depends on the specific application scenario and design constraints of the technical solution.

[0176] FIG. 13 and FIG. 14 are structural schematic diagrams of possible communication apparatuses provided by the embodiments of the present application. These communication apparatuses can be used to implement the functions of each communication apparatus in the above method embodiments, and thus can also achieve the beneficial effects possessed by the above method embodiments.

[0177] As shown in FIG. 13, the communication apparatus 1300 includes a processing unit 1310 and a transceiver unit 1320.

[0178] When the communication apparatus 1300 is used to implement the functions of the terminal in the above method embodiments, the processing unit 1310 is configured to:

[0179] The processing unit 1310 invokes the transceiver unit 1320 to perform receiving first indication information, the first indication information being used to indicate N feedback periods and N feedback conditions, the N feedback periods corresponding to the N feedback conditions one by one, the N feedback conditions including a first feedback condition, and N being a positive integer; receiving a first signal; and in a case where a first sensing target meets the first feedback condition, sending information of the first sensing target according to a first feedback period, where the first sensing target is determined according to the first signal, and the first feedback condition corresponds to the first feedback period.

[0180] Some possible designs and benefits of the communication apparatus 1300 can refer to related contents in the above-described embodiment shown in FIG. 9, and details are not described herein.

[0181] In a possible design, the N feedback conditions include a second feedback condition; and the transceiver unit 1320 is configured to, in a case where a second sensing target meets the second feedback condition, send information of the second sensing target according to a second feedback period, where the second sensing target is determined according to a second signal, and the second feedback condition corresponds to the second feedback period.

[0182] In a possible design, the transceiver unit 1320 is configured to receive second indication information, the second indication information indicating an updated feedback period and feedback condition.

[0183] When the communication apparatus 1300 is configured to implement functions of the access network device in the above-described method embodiments, the transceiver unit 1320 is configured to:

[0184] The transceiver unit 1320 is configured to send first indication information, the first indication information being used to indicate N feedback periods and N feedback conditions, the N feedback periods corresponding to the N feedback conditions one by one, and N being an integer greater than or equal to 2; and receive information of a first sensing target; and the processing unit 1310 is configured to determine a feedback period corresponding to the first sensing target according to the information of the first sensing target, the feedback period corresponding to the first sensing target being one of the N feedback periods.

[0185] Some possible designs and benefits of the communication apparatus 1300 can refer to related contents in the above-described embodiment shown in FIG. 9, and details are not described herein.

[0186] In a possible design, the processing unit 1310 is configured to, when determining the feedback period corresponding to the first sensing target according to the information of the first sensing target, determine a feedback condition satisfied by the first sensing target according to the information of the first sensing target, where the feedback condition satisfied by the first sensing target is one of the N feedback conditions, and determine the feedback period corresponding to the first sensing target according to the feedback condition satisfied by the first sensing target, where the feedback period corresponding to the first sensing target is the feedback period corresponding to the feedback condition satisfied by the first sensing target.

[0187] In a possible design, the N feedback conditions indicate N regions, and the information of the first sensing target includes location information of the first sensing target; the processing unit 1310 is configured to, when determining the feedback condition satisfied by the first sensing target according to the information of the first sensing target, determine, according to the location information of the first sensing target, that the first sensing target is located in a first region, where the N regions include the first region, and the feedback period corresponding to the first sensing target is the feedback period corresponding to the first region.

[0188] In a possible design, the N feedback conditions indicate N Doppler shift ranges, and the information of the first sensing target includes a Doppler shift of the first sensing target; the processing unit 1310 is configured to, when determining the feedback condition satisfied by the first sensing target according to the information of the first sensing target, determine, according to the Doppler shift of the first sensing target, that the Doppler shift of the first sensing target belongs to a first Doppler shift range, and the feedback period corresponding to the first sensing target is the feedback period corresponding to the first Doppler shift range.

[0189] In a possible design, the transceiver 1320 is configured to send second indication information according to the information of the first sensing target, where the second indication information indicates an updated feedback period and feedback condition.

[0190] When the communication apparatus 1300 is used to implement the functions of the terminal in the method embodiments described above, the processing unit 1310 is configured to:

[0191] The processing unit 1310 invokes the transceiver 1320 to perform the following steps: sending first information, where the first information indicates K feedback conditions satisfied by M sensing targets, and M and K are positive integers; receiving second information, where the second information indicates K feedback periods, and the K feedback periods correspond to the K feedback conditions in a one-to-one manner; and sending information of the M sensing targets according to the K feedback periods.

[0192] Some possible designs and advantages of the communication apparatus 1300 can refer to the related content in the above-described embodiment shown in FIG. 12, and details are not described herein.

[0193] In a possible design, the transceiver 1320 is configured to receive third information before the first information is transmitted, where the third information is used to indicate the N feedback conditions, and the K feedback conditions belong to the N feedback conditions, N is a positive integer, and K≤N.

[0194] When the communication apparatus 1300 is configured to implement the functions of the access network device in the above method embodiments, the processor 1310 is configured to:

[0195] The processor 1310 invokes the transceiver 1320 to perform the following operations: receiving first information, where the first information indicates K feedback conditions, K is a positive integer; determining K feedback periods according to the K feedback conditions, where the K feedback periods correspond to the K feedback conditions in a one-to-one manner; and transmitting second information, where the second information indicates the K feedback periods, and information of a sensing target is received according to the K feedback periods.

[0196] Some possible designs and advantages of the communication apparatus 1300 can refer to the related content in the above embodiment shown in FIG. 12, and details are not described herein.

[0197] In a possible design, the transceiver 1320 is configured to transmit third information before the first information is received, where the third information is used to indicate the N feedback conditions, and the K feedback conditions belong to the N feedback conditions, N is a positive integer, and K≤N.

[0198] For more details of the processor 1310 and the transceiver 1320, refer to the related descriptions in the above method embodiments, which are not described herein.

[0199] As shown in FIG. 14, the communication apparatus 1400 includes a processor 1410 and an interface circuit 1420. The processor 1410 and the interface circuit 1420 are coupled to each other. It can be understood that the interface circuit 1420 can be a transceiver or an input / output interface. Optionally, the communication apparatus 1400 can further include a memory 1430, used to store instructions executed by the processor 1410 or used to store input data required by the processor 1410 to execute instructions or used to store data generated by the processor 1410 after executing instructions.

[0200] When the communication apparatus 1400 is configured to implement the above method embodiments, the processor 1410 is configured to implement the functions of the processor 1310, and the interface circuit 1420 is configured to implement the functions of the transceiver 1320.

[0201] It is to be understood that the processor in the embodiments of the present application can be a central processing unit (CPU), and can also be other general-purpose processors, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor can be a microprocessor or any conventional processor.

[0202] In the present application, another example of providing an apparatus is provided, the notification apparatus comprising at least one processor and at least one memory coupled to the at least one processor, the at least one memory for storing instructions that, when executed by the at least one processor, cause the communication apparatus to perform the method in the above embodiments. Taking the communication apparatus comprising one processor and one memory as an example, as shown in FIG. 14, the communication apparatus 1400 comprises one processor 1410 and one memory 1430. The processor 1410 and the memory 1430 are coupled, and the memory 1430 stores instructions, when the instructions stored in the memory 1430 are executed by the processor 1410, the communication apparatus 1400 performs the method performed by each communication apparatus in the above embodiments.

[0203] The method steps in the embodiments of the present application can be implemented in hardware, or can be implemented in software instructions executable by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically programmable read-only memory, a register, a hard disk, a mobile hard disk, a CD-ROM or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium. The storage medium can also be an integral part of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in the terminal or the access network device described above. The processor and the storage medium can also exist as discrete components in the terminal or the access network device.

[0204] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer programs or instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments are performed. The computer can be a general purpose computer, a special purpose computer, a computer network, a network device, a user equipment or other programmable apparatus. The computer programs or instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer programs or instructions can be transferred from one website site, computer, server or data center to another website site, computer, server or data center through wired or wireless manner. The computer readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center and the like integrated with one or more available media. The available media can be a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape; or an optical medium, such as a digital video disc; or a semiconductor medium, such as a solid state disk. The computer readable storage medium can be a volatile or non-volatile storage medium, or can include both volatile and non-volatile storage media.

[0205] In various embodiments of the present application, the terms and / or descriptions of different embodiments are consistent and can be referred to each other if there is no special description and logical conflict. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0206] In the present application, "at least one" means one or more, and "multiple" means two or more. The association relationship between the associated objects is described, which means that there can be three kinds of relationships, for example, A and / or B, which can represent the following cases: A exists alone, A and B exist together, B exists alone, where A and B can be singular or plural. In the literal description of the present application, the character " / ", generally represents that the associated objects before and after are in an "or" relationship; in the formula of the present application, the character " / ", represents that the associated objects before and after are in a "division" relationship. "Including at least one of A, B and C" can mean: including A; including B; including C; including A and B; including A and C; including B and C; including A, B and C.

[0207] It can be understood that various numerical numbers involved in the embodiments of the present application are only distinguished for convenience of description, and do not limit the scope of the embodiments of the present application. The size of the serial number of the above processes does not mean the order of execution, and the execution order of the processes should be determined according to its function and inherent logic.

Claims

1. A communication method characterized by comprising: The method comprises: receiving first indication information, the first indication information being used for indicating N feedback periods and N feedback conditions, the N feedback periods corresponding to the N feedback conditions one by one, the N feedback conditions comprising a first feedback condition, and N being a positive integer; receiving a first signal; in a case where a first sensing target meets the first feedback condition, sending information of the first sensing target according to a first feedback period, wherein the first sensing target is determined according to the first signal, and the first feedback condition corresponds to the first feedback period.

2. The method of claim 1, wherein, The N feedback conditions indicate N regions, and the first feedback condition indicates a first region in the N regions. The first sensing target meets the first feedback condition means that the first sensing target is located in the first region.

3. The method of claim 1 or 2, wherein, The N feedback conditions indicate N Doppler shift ranges, and the first feedback condition indicates a first Doppler shift range in the N Doppler shift ranges. The first sensing target meets the first feedback condition means that a Doppler shift of the first sensing target belongs to the first Doppler shift range.

4. The method according to any one of claims 1 to 3, characterized in that, The information of the first sensing target further comprises a sensing duration of the first sensing target, wherein the sensing duration of the first sensing target is a total duration of the first signal received in the first feedback period.

5. The method according to any one of claims 1 to 4, characterized in that, The N feedback conditions comprise a second feedback condition. in a case where a second sensing target meets the second feedback condition, sending information of the second sensing target according to a second feedback period, wherein the second sensing target is determined according to a second signal, and the second feedback condition corresponds to the second feedback period.

6. The method according to any one of claims 1 to 5, wherein, Further comprising: receiving second indication information, the second indication information indicating an updated feedback period and feedback condition.

7. The method of claim 6, wherein, The first indication information is carried by downlink control information or radio resource control signaling, and / or the second indication information is carried by downlink control information or radio resource control signaling.

8. A communication method characterized by comprising: The method comprises: sending first indication information, the first indication information being used for indicating N feedback periods and N feedback conditions, the N feedback periods corresponding to the N feedback conditions one by one, and N being an integer greater than or equal to 2; receiving information of a first sensing target; determining a feedback period corresponding to the first sensing target according to the information of the first sensing target, the feedback period corresponding to the first sensing target being one of the N feedback periods.

9. The method of claim 8, wherein, Determining a feedback period corresponding to the first sensing target according to the information of the first sensing target comprises: determining a feedback condition met by the first sensing target according to the information of the first sensing target, the feedback condition met by the first sensing target being one of the N feedback conditions; determining the feedback period corresponding to the first sensing target according to the feedback condition met by the first sensing target, the feedback period corresponding to the first sensing target being a feedback period corresponding to the feedback condition met by the first sensing target.

10. The method of claim 9, wherein, The N feedback conditions indicate N regions, and the information of the first sensing target comprises position information of the first sensing target. The feedback condition satisfied by the first sensing target is determined according to the information of the first sensing target, including: The first sensing target is located in a first region according to the position information of the first sensing target, wherein the N regions include the first region; The feedback period corresponding to the first sensing target is a feedback period corresponding to the first region.

11. The method of claim 10, wherein, The N feedback conditions indicate N Doppler shift ranges, and the information of the first sensing target includes a Doppler shift of the first sensing target; The feedback condition satisfied by the first sensing target is determined according to the information of the first sensing target, including: The Doppler shift of the first sensing target belongs to the first Doppler shift range according to the Doppler shift of the first sensing target; The feedback period corresponding to the first sensing target is a feedback period corresponding to the first Doppler shift range.

12. The method according to any one of claims 8 to 11, characterized in that, The information of the first sensing target further includes a sensing duration of the first sensing target; wherein the sensing duration of the first sensing target is a total duration of the first signal received in the first feedback period.

13. The method according to any one of claims 8 to 12, wherein, Further comprising: The second indication information is sent according to the information of the first sensing target, and the second indication information indicates an updated feedback period and feedback condition.

14. The method of claim 13, wherein, The first indication information is carried by downlink control information or radio resource control signaling, and / or the second indication information is carried by downlink control information or radio resource control signaling.

15. A method of communication, comprising: The method comprises: The first information is sent, and the first information indicates K feedback conditions satisfied by M sensing targets, M and K being positive integers; The second information is received, and the second information indicates K feedback periods, the K feedback periods corresponding to the K feedback conditions one by one; The information of the M sensing targets is sent according to the K feedback periods.

16. The method of claim 15, wherein, Before the first information is sent, further comprising: The third information is received, and the third information is used to indicate the N feedback conditions, the K feedback conditions belonging to the N feedback conditions, N being a positive integer, and K≤N.

17. The method of claim 15 or 16, wherein, The K feedback conditions indicate K regions; There are at least one sensing target in the M sensing targets in any one of the K regions.

18. The method of claim 15 or 16, wherein, The K feedback conditions indicate K Doppler shift ranges; The number of sensing targets whose Doppler shifts belong to any one of the K Doppler shift ranges is greater than or equal to 1, and the sum of the numbers of sensing targets corresponding to the K Doppler shift ranges is M.

19. The method of any one of claims 15-18, wherein, The information of the M sensing targets includes the information of a first sensing target, and the information of the first sensing target includes a sensing duration of the first sensing target, the sensing duration of the first sensing target being a total duration of a first signal received in a feedback period of the first sensing target.

20. The method of any one of claims 16-19, wherein, The second information is carried by downlink control information or radio resource control signaling, and / or the third information is carried by downlink control information or radio resource control signaling.

21. A method of communication, comprising: The method comprises: The first information is received, and the first information indicates K feedback conditions, K being a positive integer; K feedback periods are determined according to the K feedback conditions, the K feedback periods correspond to the K feedback conditions one by one; second information is sent, the second information indicates the K feedback periods, information of a sensing target is received according to the K feedback periods.

22. The method of claim 21, wherein, Before receiving the first information, further comprising: third information is sent, the third information is used for indicating the N feedback conditions, the K feedback conditions belong to the N feedback conditions, N is a positive integer, and K≤N.

23. The method of claim 21 or 22, wherein, The K feedback conditions indicate K regions or K Doppler shift ranges.

24. The method of claim 22 or 23, wherein, The second information is carried by downlink control information or radio resource control signaling, and / or the third information is carried by downlink control information or radio resource control signaling.

25. A communications device, characterized by The apparatus comprises units or modules for performing the method according to any one of claims 1 to 24.

26. A communications device, characterized by The communication device comprises at least one processor; the at least one processor is used for executing the method according to any one of claims 1 to 24.

27. A computer readable storage medium, characterized in that, The computer readable storage medium comprises a program, when the program runs on the device, causes the device to execute the method according to any one of claims 1 to 24.

28. A computer program product, characterised in that, The computer program product comprises a program or instruction, when the program or instruction is executed by the device, causes the device to execute the method according to any one of claims 1 to 24.

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