Measurement feedback method and apparatus and communication device

Abstract

The present application relates to the technical field of communications. Disclosed are a measurement feedback method and apparatus and a communication device. The measurement feedback method of embodiments of the present application comprises: a first communication device detects a reference signal sent by a second communication device; on the basis of a detection result of the reference signal, the first communication device determines a target area; and the first communication device sends to the second communication device first information, wherein the first information is used for indicating the target area; the detection result comprises at least one of a power value, signal quality, path loss, a channel rank and a channel matrix eigenvalue of the reference signal; the first communication device is a terminal, the second communication device is a network side device, and the target area is a first area that is part of an antenna area of the second communication device; or the first communication device is a network side device, the second communication device is a terminal, and the target area is a second area that is part of an antenna area of the first communication device.

Description

Measurement feedback method, device and communication equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese Patent Application No. 202310926196.6 filed in China on July 26, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to a measurement feedback method, apparatus, and communication equipment. Background Art

[0004] As the array size increases, the power of the signal transmitted by users in the near field may be mainly received by a part of the array due to changes in the amplitude and incident wave inclination angle to each antenna array; vice versa, only the signals transmitted by the antennas in a local area of ​​the array may meet the terminal's reception requirements.

[0005] The scenarios discussed in the relevant protocols are basically that the entire array serves the end users together. Even in the discussion of network energy-saving scenarios, the activated panels serve all users. This is not conducive to energy saving on the network side.

[0006] Summary of the Invention

[0007] The embodiments of the present application provide a measurement feedback method, apparatus, and communication equipment to achieve network energy saving in near-field areas.

[0008] In a first aspect, a measurement feedback method is provided, comprising:

[0009] The first communication device detects a reference signal sent by the second communication device;

[0010] The first communication device determines a target area based on a detection result of the reference signal;

[0011] The first communication device sends first information to the second communication device, where the first information is used to indicate the target area;

[0012] The detection result includes at least one of the power value, signal quality, path loss, channel rank, and channel matrix eigenvalue of the reference signal;

[0013] The first communication device is a terminal, the second communication device is a network-side device, the target area is a first area, and the first area is a partial antenna area of ​​the second communication device; or

[0014] The first communication device is a network-side device, the second communication device is a terminal, the target area is a second area, and the second area is a partial antenna area of ​​the first communication device.

[0015] In a second aspect, a measurement feedback apparatus is provided, applied to a first communication device, including:

[0016] a detection module, configured to detect a reference signal sent by the second communication device;

[0017] a determination module, configured to determine a target area based on a detection result of the reference signal;

[0018] a first sending module, configured to send first information to the second communication device, where the first information is used to indicate the target area;

[0019] The detection result includes at least one of the power value, signal quality, path loss, channel rank, and channel matrix eigenvalue of the reference signal;

[0020] The first communication device is a terminal, the second communication device is a network-side device, the target area is a first area, and the first area is a partial antenna area of ​​the second communication device; or

[0021] The first communication device is a network-side device, the second communication device is a terminal, the target area is a second area, and the second area is a partial antenna area of ​​the first communication device.

[0022] A third aspect provides a measurement feedback method, including:

[0023] The second communication device sends a reference signal to the first communication device;

[0024] The second communication device receives first information fed back by the first communication device, where the first information is used to indicate a target area;

[0025] The target area is determined by the first communication device based on a detection result of the reference signal, where the detection result includes at least one of a power value, signal quality, path loss, channel rank, and a channel matrix eigenvalue of the reference signal;

[0026] The first communication device is a terminal, the second communication device is a network-side device, the target area is a first area, and the first area is a partial antenna area of ​​the second communication device; or

[0027] The first communication device is a network-side device, the second communication device is a terminal, the target area is a second area, and the second area is a partial antenna area of ​​the first communication device.

[0028] In a fourth aspect, a measurement feedback apparatus is provided, applied to a second communication device, including:

[0029] A second sending module, configured to send a reference signal to the first communication device;

[0030] A first receiving module is configured to receive first information fed back by the first communication device, where the first information is used to indicate a target area;

[0031] The target area is determined by the first communication device based on a detection result of the reference signal, where the detection result includes at least one of a power value, signal quality, path loss, channel rank, and a channel matrix eigenvalue of the reference signal;

[0032] The first communication device is a terminal, the second communication device is a network-side device, the target area is a first area, and the first area is a partial antenna area of ​​the second communication device; or

[0033] The first communication device is a network-side device, the second communication device is a terminal, the target area is a second area, and the second area is a partial antenna area of ​​the first communication device.

[0034] In a fifth aspect, a communication device is provided, which is a first communication device, including a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the first aspect are implemented.

[0035] According to a sixth aspect, a communication device is provided. The communication device is a first communication device, comprising a processor and a communication interface, wherein the processor is configured to detect a reference signal sent by a second communication device; determine a target area based on a detection result of the reference signal; and the communication interface is configured to send first information to the second communication device, wherein the first information is configured to indicate the target area.

[0036] The detection result includes at least one of the power value, signal quality, path loss, channel rank, and channel matrix eigenvalue of the reference signal;

[0037] The first communication device is a terminal, the second communication device is a network-side device, the target area is a first area, and the first area is a partial antenna area of ​​the second communication device; or

[0038] The first communication device is a network-side device, the second communication device is a terminal, the target area is a second area, and the second area is a partial antenna area of ​​the first communication device.

[0039] In the seventh aspect, a communication device is provided, which is a second communication device, including a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the third aspect are implemented.

[0040] In an eighth aspect, a communication device is provided, the communication device being a second communication device, including a processor and a communication interface, wherein the communication interface is configured to send a reference signal to a first communication device; receive first information fed back by the first communication device, where the first information is configured to indicate a target area;

[0041] The target area is determined by the first communication device based on a detection result of the reference signal, where the detection result includes at least one of a power value, signal quality, path loss, channel rank, and a channel matrix eigenvalue of the reference signal;

[0042] The first communication device is a terminal, the second communication device is a network-side device, the target area is a first area, and the first area is a partial antenna area of ​​the second communication device; or

[0043] The first communication device is a network-side device, the second communication device is a terminal, the target area is a second area, and the second area is a partial antenna area of ​​the first communication device.

[0044] In the ninth aspect, a communication system is provided, comprising: a first communication device and a second communication device, wherein the first communication device can be used to execute the steps of the method described in the first aspect, and the second communication device can be used to execute the steps of the method described in the third aspect.

[0045] In a tenth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect or the third aspect are implemented.

[0046] In the eleventh aspect, a chip is provided, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps of the method described in the first aspect or the third aspect.

[0047] In a twelfth aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a storage medium, and the computer program / program product is executed by at least one processor to implement the steps of the method described in the first aspect or the third aspect.

[0048] In an embodiment of the present application, by detecting a reference signal sent by a second communication device, a target area is determined based on the detection result of the reference signal, and first information indicating the target area is sent to the second communication device, where the first information is used to indicate the target area; thereby, in the case of a near-field area, the switching of part of the antenna area can be achieved, thereby achieving the purpose of network energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] FIG1 is a block diagram of a wireless communication system applicable to embodiments of the present application;

[0050] FIG2 is a schematic diagram of a partially closed antenna area;

[0051] FIG3 is a flow chart of a measurement feedback method according to an embodiment of the present application;

[0052] FIG4 is a schematic diagram showing the position of a subarray;

[0053] FIG5 is a second flow chart of the measurement feedback method according to an embodiment of the present application;

[0054] FIG6 is a schematic diagram of a module of a measurement feedback device according to an embodiment of the present application;

[0055] FIG7 is a schematic structural diagram of a terminal according to an embodiment of the present application;

[0056] FIG8 is a schematic structural diagram of a network-side device according to an embodiment of the present application;

[0057] FIG9 is a second schematic diagram of a module of a measurement feedback device according to an embodiment of the present application;

[0058] FIG10 is a schematic structural diagram of a communication device according to an embodiment of the present application. DETAILED DESCRIPTION

[0059] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0060] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0061] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0062] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems.

[0063] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (Flight Vehicle), a vehicle-mounted device (VUE), a ship-mounted device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AP) or a wireless fidelity (WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0064] The following first describes the technologies related to the embodiments of the present application.

[0065] 1. Near Field

[0066] In 5G New Radio (NR) systems, user equipment (UE) is assumed to always be in the far field of the base station. Signal propagation between the base station and the UE can be approximately modeled using a plane wave model. In this model, the propagation path between each base station antenna and the UE is identical, resulting in the same path loss and phase. Based on this model, the base station's beam angle can be controlled by controlling the phase difference between the base station's antennas.

[0067] In the near field, the propagation paths from each base station antenna to the UE can no longer be assumed to be identical, and a plane wave model cannot be used to model signal propagation from the base station to the UE. Instead, a spherical wave model is required. Near-field and far-field communications differ in many ways: the first is the nonlinear variation in the phase of the received signal across the array. In the far field, the phase of the array steering vector scales approximately linearly for different elements, making mathematical analysis tractable. However, this property does not hold true in the near field. Second, as the array aperture increases, the amplitude / path loss variation across the entire array must be considered. This is because the distance between a user and the center of the array can differ significantly from the distance between the user and the edge of the array. Third, in the near field, the tilt angle of the incident wave varies significantly from the center to the edge of the array, resulting in variations in the effective projected aperture of different antennas in the array. Another change faced by users in the near field is channel nonstationarity. Due to the large array size, different antenna elements in the array experience different propagation environments, resulting in spatially nonstationary channels. For array antennas, clusters have a partially visible feature, that is, some clusters are visible to the entire array, while some clusters are only visible to some array elements. This leads to the non-stationary characteristics of the near-field channel.

[0068] 2. Network Energy Saving

[0069] Traditional base station energy conservation measures primarily rely on on-site power-off, timed switching, and cell blocking. However, these methods are relatively crude and fail to address user perception. In the 5G era, 5G base stations utilize large-scale 64T64R array antennas, supporting greater bandwidth and other factors, resulting in higher energy consumption than 4G base stations. Furthermore, due to the high frequency band and the limited coverage of a single station, 5G base station deployments will require two to three times the scale of 4G base stations to achieve the same coverage as 4G networks. The higher power consumption of equipment and the greater number of sites inevitably lead to greater power consumption. Excessive 5G power consumption has become a pain point for current network operations, making research into energy-saving technologies for 5G base stations imperative.

[0070] Base station energy saving can be divided into symbol shutdown, carrier shutdown, channel shutdown and deep sleep technology according to the implementation principle. Technical background of airspace energy saving: Massive multiple-input multiple-output (MIMO) consumes more energy due to the large number of antennas and the corresponding number of RF devices. When the number of UEs in a cell is small, the capacity / coverage gain brought by mMIMO will be redundant. At this time, the network side can shut down some transceiver units (TxRU) to achieve the purpose of network energy saving. As shown in Figure 2, the TxRU corresponding to some antenna units can be shut down to serve a small number of users. For example, the antenna units in the dotted box in Figure 2 are shut down. After shutting down some TxRUs, the coverage range of the beam will be weakened and the beam width will be increased.

[0071] As the array scale increases, the power of a user's transmitted signal in the near field may be primarily received by a portion of the array due to variations in the amplitude and angle of the incoming wave to each antenna element. This characteristic can be exploited to reduce the computational overhead of signal detection and estimation at the terminal, thereby reducing latency and energy consumption.

[0072] However, in current protocols, the entire array serves end users. Even in discussions of network energy-saving scenarios, all users are served by the activated panels, without distinguishing which subarrays serve which users. Reducing the number of service panels will lead to a decrease in beam coverage and an increase in beam width. Furthermore, powering down some panels to achieve network energy savings is only considered when throughput is low. Under normal throughput conditions, powering down antenna subarrays that are not participating in transmission is not considered.

[0073] The measurement feedback method, apparatus, and communication device provided in the embodiments of the present application are described in detail below with reference to some embodiments and their application scenarios in conjunction with the accompanying drawings.

[0074] As shown in FIG3 , an embodiment of the present application provides a measurement feedback method, including:

[0075] Step 301: A first communication device detects a reference signal sent by a second communication device.

[0076] Step 302: The first communication device determines a target area based on the detection result of the reference signal;

[0077] Step 303: The first communication device sends first information to the second communication device, where the first information is used to indicate the target area.

[0078] Optionally, the detection result includes at least one of the power value, signal quality, path loss, channel rank, and channel matrix eigenvalue of the reference signal.

[0079] It should be noted that the power referred to in the embodiments of the present application refers to the Reference Signal Received Power (RSRP). The signal quality can be Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR), Signal to Interference Ratio (SIR), etc.

[0080] Optionally, the embodiment of the present application is applicable to one of the following situations:

[0081] Case 1: The first communication device is a terminal, and the second communication device is a network-side device;

[0082] It should be noted that, in this case, the target area is the first area, and the first area is a partial antenna area of ​​the second communication device;

[0083] This situation refers to the terminal measuring the downlink reference signal sent by the network side device, obtaining a measurement result (ie, the above-mentioned detection result), and then determining which antenna areas of the network side device can provide services for the terminal based on the measurement result.

[0084] Optionally, the first area includes an antenna area of ​​the second communication device corresponding to the reference signal whose detection result meets the target condition.

[0085] Optionally, the first area can be understood as the visible area, that is, a part of the antenna area in the network side device that can provide services to the terminal; that is, as the scale of the network side antenna array continues to increase, most of the energy sent by the terminal user in the near field area is received by a part of the antenna subarray, and the set of subarrays where these signal energies are concentrated is called the visible area of ​​the terminal.

[0086] Case 2: The first communication device is a network-side device, and the second communication device is a terminal;

[0087] It should be noted that, in this case, the target area is the second area, and the second area is a partial antenna area of ​​the first communication device.

[0088] This situation refers to the network side device measuring the uplink reference signal sent by the terminal, obtaining the measurement result, and then determining which of its own antenna areas can provide services for the terminal based on the measurement result.

[0089] Optionally, the second area includes the antenna area of ​​the first communication device corresponding to the reference signal whose detection result meets the target condition

[0090] Optionally, the second area can be understood as a visible area, that is, a part of the antenna area in the network side device that can provide services to the terminal.

[0091] It should also be noted here that the antenna area mentioned in the embodiment of the present application can be understood as the distribution area of ​​the antenna units on the antenna panel of the network side device, and can also be understood as the area occupied by all antenna sub-arrays; each sub-array occupies a part of the antenna area.

[0092] It should also be noted that the above target conditions include at least one of the following:

[0093] A11, the ratio of the power value to the total received power is greater than or equal to the power detection threshold;

[0094] For example, if the ratio of the RSRP value of the reference signal of a particular subarray to the total received power is greater than or equal to the power detection threshold, then the subarray satisfies the condition. Alternatively, if the ratio of the sum of the RSRP values ​​of the reference signals of several subarrays to the total received power is greater than or equal to the power detection threshold, then these subarrays satisfy the condition.

[0095] A12, signal quality is greater than or equal to the quality detection threshold;

[0096] For example, if the RSRQ of the reference signal of a certain subarray is greater than or equal to the quality detection threshold, then the subarray is a subarray that meets the condition.

[0097] A13, path loss is less than or equal to the path loss threshold;

[0098] For example, if the path loss of the reference signal of a certain subarray is less than or equal to the path loss threshold, then the subarray is a subarray that meets the condition.

[0099] A14, the channel rank is greater than or equal to the channel rank threshold;

[0100] For example, if the channel rank of the reference signal of a certain subarray is greater than or equal to the channel rank threshold, then the subarray is a subarray that meets the condition.

[0101] A15. The eigenvalue of the channel matrix is ​​greater than or equal to the eigenvalue threshold;

[0102] For example, if the eigenvalue of the channel matrix of the reference signal of a certain subarray is greater than or equal to the eigenvalue threshold, then the subarray is a subarray that meets the condition.

[0103] It should be noted that the target conditions used in Case 1 and Case 2 can be the same or different, and the specific threshold values ​​can be the same or different. For example, Case 1 uses A11 as the target condition, while Case 2 uses A15 as the target condition. For another example, Case 1 and Case 2 both use A13 as the target condition, and the path loss threshold value used in Case 1 is a first value, while the path loss threshold value used in Case 2 is a second value, and the first value is not equal to the second value.

[0104] Optionally, in one implementation, the first communication device determines, based on the detection result of the reference signal, a specific implementation of the target area, including:

[0105] If the reference signal whose detection result satisfies the target condition includes multiple target subarrays, the first communication device determines a target area in the multiple target subarrays according to the maximum number N of serving subarrays.

[0106] It should be noted that if there are multiple target subarrays selected based on the target condition, and if there is no maximum number of service subarrays or the number of target subarrays selected based on the target condition is less than or equal to the maximum number of service subarrays, the first communication device may notify the second communication device of all of these target subarrays. If the number of target subarrays selected based on the target condition is greater than the maximum number of service subarrays, some subarrays need to be selected from the multiple target subarrays. Optionally, in one implementation, determining the target area from the multiple target subarrays specifically includes at least one of the following:

[0107] B11. Randomly select N target subarrays from the multiple target subarrays, and use areas corresponding to the N target subarrays as target areas.

[0108] B12. Sort the detection results of the reference signals corresponding to the multiple target subarrays in descending order, select the top N target subarrays, and use the areas corresponding to the N target subarrays as the target area;

[0109] This situation can be understood as selecting the N target subarrays with the best detection results.

[0110] It should also be noted that, in the above case 1, the target subarray refers to the subarray in the antenna array of the second communication device; in the above case 2, the target subarray refers to the subarray in the antenna array of the first communication device.

[0111] The specific applications of the embodiments of the present application are described in detail below under the different situations mentioned above.

[0112] 1. The first communication device is a terminal, and the second communication device is a network-side device

[0113] Optionally, in one implementation, the method further includes:

[0114] The first communication device obtains first configuration information;

[0115] Optionally, the first configuration information may be configured by the second communication device or agreed upon in a protocol.

[0116] Specifically, the first configuration information includes at least one of the following:

[0117] C11, mapping relationship between identification information of different subarrays and downlink reference signal resource information;

[0118] Optionally, in one implementation, the downlink reference signal resource information includes at least one of the following:

[0119] C111, time domain resources;

[0120] C112, frequency domain resources;

[0121] C113, airspace resources;

[0122] For example, the spatial resource may be indicated by a beam.

[0123] For example, for a network-side large-scale antenna array consisting of 8 sub-arrays, the mapping relationship is shown in Table 1:

[0124] Table 1 Mapping relationship between subarray number and downlink RS resource information

[0125] It should be noted that each candidate set consisting of {time domain resources, frequency domain resources, spatial domain resources} in Table 1 may include one or more different downlink reference signal resource information combinations, that is, each subarray may include multiple downlink reference signal resource information configuration modes; further, the network side device may configure a certain downlink reference signal resource information combination in the candidate set to the user, for example, the network side device configures configuration 1 of the downlink reference signal resource information under subarray #1 for the terminal; further optionally, different resource candidate sets may include the same time domain resources, frequency domain resources, and / or spatial domain resources.

[0126] C12, a resource set, wherein the resource set includes: a mapping relationship between subarrays and downlink reference signal resource information;

[0127] For example, the resource set in the embodiment of the present application is defined as a set of {time domain resources, frequency domain resources, spatial domain resources, subarray index}, and different resource set indexes correspond to different sets of {time domain resources, frequency domain resources, spatial domain resources, subarray index}, which are used to indicate the subarray index for sending a downlink reference signal and the corresponding time domain resources, frequency domain resources, and / or spatial domain resources; for example, a list containing 8 resource sets is shown in Table 2:

[0128] Table 2 Mapping relationship between resource set sequence number and subarray downlink RS resource information

[0129] It should be noted that each set of {time domain resources, frequency domain resources, spatial domain resources, subarray index} in Table 2 may include a combination of a subarray index and one or more downlink reference signal resource information. Furthermore, the network may configure a certain downlink reference signal resource information under the resource set index to the user, for example, configuration 1 of the downlink reference signal resource information under resource set #1, configuration 2 of the downlink reference signal resource information under resource set #1, and so on. Furthermore, optionally, different resource sets may include the same time domain resources, frequency domain resources, and / or spatial domain resources.

[0130] Optionally, in one implementation, the first information includes at least one of the following:

[0131] C21, identification information of subarrays within the first area, each of the subarrays occupying part of the antenna area;

[0132] Optionally, the identification information may be a number or index of a subarray.

[0133] C22, service status indication information of all sub-arrays of the second communication device;

[0134] It should be noted that the service status of a subarray indicates whether a subarray is serving the terminal. In this case, the service status of each subarray can be indicated separately through a bitmap; for example, it can be represented by binary characters, such as 0 for no service and 1 for service; or vice versa, 0 for service and 1 for no service.

[0135] C23. Feature information of the first region, where the feature information is used to indicate a region shape of the first region;

[0136] It should be noted that the shape of the region is used to characterize the shape features of the constituent region. Optionally, the first region may include one or more shape features, and the shape features may be standard shapes (for example, circles, rectangles, etc.) or non-standard shapes (for example, irregular shapes); for example, the non-standard shape may be represented by a sub-array identification information set, and the identification information set is used to indicate one or more sub-arrays.

[0137] For example, when the terminal identifies the first area as a rectangular area, combined with the subarray configuration information, a preconfigured format can be used to feedback identification information (e.g., subarray index) of the four corner subarrays. For example, in FIG4 , mode1-[1,3,9,11] can be fed back, where mode1 represents a rectangular area and [1,3,9,11] represents the feedback format.

[0138] For example, when the terminal identifies the first area as a circular area, combined with the subarray configuration information, a preconfigured format can be used to feedback the identification information (e.g., subarray index) and radius of the center subarray. For example, in FIG4 , mode2-[6, r] can be fed back, where mode2 represents the circular area and r represents the radius of the first area.

[0139] For example, when the terminal recognizes that the first area can be split into multiple preconfigured area shapes, it can simultaneously feedback the area range corresponding to each split area shape; or, when the terminal recognizes that the first area contains preconfigured area shapes and irregular shapes, it can feedback the preconfigured area shapes and directly feedback the sub-array index corresponding to the irregular shape.

[0140] It should be noted that the mode and feedback format corresponding to different area shapes are configured by the network side device to the terminal or agreed upon by the protocol.

[0141] It should be noted that after determining the target area, the terminal can combine the characteristics of the array and the target area to feedback the subarray set corresponding to the target area in a preconfigured format, thereby further reducing feedback overhead. For example, for a 3*4 rectangular area, the terminal's feedback amount is reduced from 12 indices to 4 indices (corresponding to the four corners of the rectangle), thereby reducing feedback overhead.

[0142] C24, identification information of a resource set corresponding to the reference signal associated with the first region;

[0143] It should be noted that, since resource sets correspond to sub-arrays, when the terminal reports identification information of the resource sets to the network device, the network device can determine which sub-arrays provide specific services based on the identification information.

[0144] Optionally, in one implementation, the method further includes:

[0145] The first communication device receives second configuration information sent by the second communication device;

[0146] The second configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0147] Optionally, the antenna subarray physical topology information includes at least one of the following:

[0148] C301, formation information of the sub-array of the antenna array;

[0149] Optionally, the formation information may indicate, for example but not limited to, at least one of the following: a linear array, a rectangular array, a circular array, or a cylindrical array.

[0150] C302, sub-array topology of antenna array;

[0151] It should be noted that the subarray topology structure can be understood as the number of horizontal subarrays and the number of vertical subarrays included in the antenna array.

[0152] C303, horizontal dimensions of the antenna array;

[0153] C304, vertical dimensions of the antenna array;

[0154] C305, horizontal size of subarray;

[0155] C306, subarray vertical size;

[0156] It should be noted that the units of the horizontal and vertical dimensions may be length units such as centimeters, meters, decimeters, and millimeters.

[0157] C307, antenna unit topology of subarray;

[0158] It should be noted that the antenna unit topology of the subarray can be understood as the number of horizontal antenna units and the number of vertical antenna units included in the subarray.

[0159] C308, horizontal and vertical spacing of antenna elements within the subarray;

[0160] C309, horizontal and vertical spacing of antenna elements between subarrays;

[0161] C310, number of antenna units;

[0162] The number of antenna units refers to the total number of antenna units included in the antenna array.

[0163] It should be noted that the second configuration information can be understood as subarray configuration information, which can assist the terminal side in MIMO perception; further, after the terminal knows the physical topology information of the antenna subarray, it can also reduce the bits occupied by the feedback information when performing target area feedback.

[0164] Optionally, in one implementation, the method further includes:

[0165] The first communication device acquires the position coordinates of the target parameter and the reference point position;

[0166] The target parameter includes one of the following: a subarray, and a subarray corresponding to a downlink reference signal.

[0167] Optionally, in one implementation, the reference point position is indicated by the second communication device. That is, the reference point position is explicitly indicated to the terminal by the network side device.

[0168] Optionally, the reference point position may be indicated by an antenna element index at a designated position such as an edge, an end, or a center.

[0169] Optionally, in one implementation, obtaining the position coordinates of the target parameter includes at least one of the following:

[0170] C31. The first communication device receives the position coordinates of the target parameter sent by the second communication device;

[0171] It should be noted that, in this case, it can be understood that the location coordinates of the target parameter are explicitly indicated to the terminal by the network side device.

[0172] C32. The first communication device determines the position coordinates of the target parameter according to the second information sent by the second communication device and the reference point position;

[0173] It should be noted that, in this case, it can be understood that the location coordinates of the target parameter are implicitly indicated to the terminal by the network-side device.

[0174] The second information includes at least one of the following:

[0175] C321, antenna array subarray topology, antenna array horizontal dimensions, antenna array vertical dimensions;

[0176] For example, the sub-array topology structure may include the number of sub-arrays in the horizontal direction and the number of sub-arrays in the vertical direction.

[0177] C322, antenna array subarray topology, subarray horizontal size, subarray vertical size;

[0178] C323, subarray topology of antenna array, antenna unit topology of subarray, horizontal and vertical spacing of antenna units within a subarray, horizontal and vertical spacing of antenna units between subarrays.

[0179] It should be noted that, as shown in FIG4 , X in FIG4 represents the horizontal size of the antenna array, Y represents the vertical size of the antenna array, X0 represents the horizontal size of the subarray, and Y0 represents the vertical size of the subarray.

[0180] Optionally, in one implementation, the method further includes:

[0181] The first communication device sends the detection result within the target area to the second communication device.

[0182] It should be noted that the detection result and the first information can be sent in the same message or in different messages.

[0183] Optionally, the subarray on the second communication device side may decide whether to be turned on or off according to the detection result of the first communication device. If no user needs to be served, it only needs to be activated periodically to send downlink RS and can be turned off at other times.

[0184] It should also be noted that, in one case, the second communication device transmits downlink reference signals to the first communication device via each subarray in an orthogonal manner; that is, when each subarray of the second communication device transmits downlink reference signals simultaneously, different downlink reference signals are mutually orthogonal, that is, the second communication device configures mutually orthogonal resource information candidate sets or resource sets for different subarrays, thereby improving downlink measurement efficiency.

[0185] In another case, the second communication device sequentially transmits downlink reference signals to the first communication device via each subarray in a time division multiplexing (TDM) format. That is, when each subarray of the second communication device transmits downlink reference signals in a time division format, different subarrays may multiplex the same reference signal on different time domain resources, and downlink reference signals of the same subarray may be orthogonal to each other. That is, the resource information candidate sets or resource sets configured by the second communication device for different subarrays may include the same frequency domain resources and / or spatial domain resources. In this manner, the number of orthogonal reference signal resources for each subarray may be reduced, thereby saving reference signal resources.

[0186] Correspondingly, the first communications device detects the downlink reference signal of the corresponding subarray on the corresponding time domain resources, frequency domain resources and / or spatial domain resources according to the configuration information of the resource position corresponding to the downlink reference signal.

[0187] It should also be noted that the first communication device may periodically measure the downlink reference signal of the subarray to update the target area; wherein the measurement period may be configured by the second communication device or agreed upon by a protocol.

[0188] In summary, in this case, after determining the target area, the terminal sends uplink signals on the uplink time domain resources, uplink frequency domain resources and / or uplink spatial domain resources associated with the sub-array within the target area; and receives downlink signals on the downlink time domain resources, downlink frequency domain resources and / or downlink spatial domain resources associated with the sub-array within the target area.

[0189] It should be noted that the downlink reference signal in this case can be a synchronization signal / physical broadcast channel signal block (or synchronization signal block) (Synchronization Signal and PBCH block, SSB), a channel state information reference signal (Channel State Information Reference Signal, CSI-RS) and other signals.

[0190] Optionally, in one implementation, the method further includes:

[0191] The first communication device sends fourth information to the second communication device based on the first configuration information, the second configuration information and / or the detection result.

[0192] The fourth information includes at least one of the following:

[0193] C41, perceptual measurement quantity;

[0194] Optionally, the perceptual measurement quantity can be divided into the following four categories:

[0195] C411. First-level measurement quantity (received signal / original channel information), including at least one of the following: complex result of the received signal / channel response, amplitude / phase, I-channel / Q-channel, and operation results thereof (operations including addition, subtraction, multiplication, and division, matrix addition, subtraction, multiplication, and division, matrix transposition, trigonometric operations, square root operations, and power operations, as well as threshold detection results and maximum / minimum value extraction results of the above operation results; operations also including Fast Fourier Transform (FFT) / Inverse Fast Fourier Transform (IFFT), Discrete Fourier Transform (DFT) / Inverse Discrete Fourier Transform (IDFT), 2D-FFT, 3D-FFT, matched filtering, autocorrelation operation, wavelet transform, and digital filtering, as well as threshold detection results and maximum / minimum value extraction results of the above operation results);

[0196] C412. Second-level measurement quantities (basic measurement quantities) include at least one of the following: time delay, Doppler, angle, intensity, and their multi-dimensional combination representations;

[0197] C413, third-level measurement quantity (basic attributes / states), including at least one of the following: distance, speed, direction, spatial position, acceleration;

[0198] C414, Level 4 measurement (advanced attributes / states), includes at least one of the following: target presence, trajectory, movement, expression, vital signs, quantity, imaging results, weather, air quality, shape, material, and composition.

[0199] Optionally, the above-mentioned perception measurement amount further includes corresponding label information, and the label information includes at least one of the following:

[0200] C4101, perception signal identification information;

[0201] C4102, perception measurement configuration identification information;

[0202] C4103, perception service information (e.g., perception service identification (ID));

[0203] C4104, data subscription ID;

[0204] C4105, measurement use (communication, perception, synaesthesia);

[0205] C4106, time information;

[0206] C4107, sensing node information (eg UE ID, node location, device orientation);

[0207] C4108, perception link information (e.g., perception link sequence number, transmitting and receiving node identification);

[0208] C4109, measurement quantity description information (form, such as amplitude value, phase value, complex value of amplitude and phase combination; resource type, such as time domain measurement result, frequency domain resource measurement result);

[0209] C4110, measurement indicator information (e.g., SNR, perceived SNR).

[0210] C42, a perception result, which is a result obtained by further computing the perception measurement, such as the position of a perception target, the motion trajectory of a perception target, etc.;

[0211] C43, perception performance evaluation index;

[0212] Optionally, the perceptual performance evaluation index may be calculated based on a perceptual measurement quantity, and may include at least one of the following:

[0213] C4301, Perception SNR, which is the ratio of the perception signal energy reflected by the perception object or perception area to the noise signal energy in the environment and the device;

[0214] C4302, Perception SINR, which is the ratio of the perception signal energy reflected by the perception object or perception area to the sum of the energy of the interference signal and the noise signal in the environment and the device;

[0215] C4303, statistical mean, standard deviation or variance of multiple measurement results of the same perceptual measurement quantity;

[0216] C4304: The deviation between the predicted value and the actual measurement value of the perception measurement quantity / perception result, as well as the statistical mean, standard deviation or variance of the deviation;

[0217] C4305: Ambiguity function-related evaluation indicators, including the normalized sidelobe level (NSL), which is the height of the highest sidelobe of the normalized ambiguity function; or the ratio of the main lobe to the highest sidelobe of the ambiguity function (or the ratio of the highest sidelobe to the main lobe); in addition, it may also include the number of normalized ambiguity function sidelobes with peak values ​​above a given threshold, the total power, or the total energy, and the ambiguity function mainlobe width (3dB width);

[0218] C4306, Cramér-Rao Lower Bound (CRLB), is the lowest variance achievable by all unbiased estimators. It is mathematically equal to the inverse of the Fisher information and is related to the perceived SNR.

[0219] C4307, Capacity-Distortion Tradeoff, quantitatively gives the maximum achievable rate of reliable transmission of the synaesthesia integrated system under given distortion constraints;

[0220] C4308, equivalent mean square error (Equivalent-MSE), converts the communication spectrum efficiency into the equivalent radar mean square error and combines it with the perception Cramer-Rao lower bound to obtain the result;

[0221] C4309, Radar Estimation-Communication Rate, treats the sensing channel as a non-cooperative communication channel, and the mutual information between the sensing system and the target is the estimation rate;

[0222] C4310, Welch Bound;

[0223] C4311. Perceptual reproducibility evaluation metrics (e.g., the sum of the Euclidean distances between sample points in the previous and next sequences, or the regularized path distance in Dynamic Time Warping (DTW), or other metrics that can reflect the similarity between two sequences, including but not limited to: Longest Common Subsequence (LCSS), Edit Distance on Real Sequences (EDR), Edit Distance with Real Penalty (ERP), Hausdorff Distance, Fréchet Distance, One Way Distance (OWD), Locality In-between Polylines (LIP), etc.);

[0224] C4312: the calculation result of at least two of the above-mentioned indicators, such as perceived SNR, perceived SINR, and Cramer-Rao lower bound (CRLB), after performing at least one operation of addition, subtraction, multiplication, and division.

[0225] 2. The first communication device is a network-side device, and the second communication device is a terminal

[0226] It should be noted that, in this case, the terminal sends an uplink reference signal to the network side device, and the network side device performs detection to obtain a detection result.

[0227] Optionally, the terminal may send an uplink reference signal on a specified time-frequency resource according to the configuration of the network-side device;

[0228] Accordingly, the network-side device needs to explicitly notify the terminal of the time-frequency resources for sending the uplink reference signal, or the uplink reference signal time-frequency resource position is associated with the network-side downlink reference signal;

[0229] Among them, the downlink reference signal may include SSB, CSI-RS and other signals;

[0230] The association relationship between the uplink reference signal and the downlink reference signal may be configured by a network-side device or agreed upon by a protocol.

[0231] Optionally, the terminal may periodically send an uplink reference signal, wherein the sending period may be configured by a network-side device or agreed upon by a protocol.

[0232] Accordingly, the subarray of the network-side device can decide whether to turn on or off based on the detection results. If no user needs to be served, it only needs to be activated periodically to detect the uplink reference signal and can be turned off at other times.

[0233] Optionally, in one implementation, the first information includes at least one of the following:

[0234] D11, identification information of subarrays within the second area, each of the subarrays occupying part of the antenna area;

[0235] D12, service status indication information of all sub-arrays of the first communication device;

[0236] It should be noted that the service status of a subarray indicates whether a subarray is serving the terminal. In this case, the service status of each subarray can be indicated separately through a bitmap; for example, it can be represented by binary characters, such as 0 for no service and 1 for service; or vice versa, 0 for service and 1 for no service.

[0237] D13, characteristic information of the second area, where the characteristic information is used to indicate the area shape of the second area;

[0238] It should be noted that the shape of the region is used to characterize the shape features of the constituent region. Optionally, the second region may include one or more shape features, and the shape features may be standard shapes (for example, circular, rectangular, etc.) or non-standard shapes (for example, irregular shapes); for example, the non-standard shape may be represented by the identification information of the subarray.

[0239] D14, identification information of a resource set corresponding to the reference signal associated with the second region;

[0240] It should be noted that, since resource sets correspond to sub-arrays, when the network-side device sends identification information of the resource sets to the terminal, the terminal can determine which sub-arrays specifically provide services based on the identification information.

[0241] D15. Resource information corresponding to the reference signal associated with the second region, the resource information including at least one of the following: time domain resources, frequency domain resources, and spatial domain resources;

[0242] It should be noted that, since the reference signal is associated with a subarray, when the network side device sends resource information corresponding to the reference signal to the terminal, the terminal can determine which subarrays specifically provide services based on the resource information.

[0243] Optionally, in one implementation, the method further includes:

[0244] The first communication device sends third configuration information to the second communication device;

[0245] The third configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0246] Optionally, the antenna subarray physical topology information in this case may include at least one item among the above C301 - C310.

[0247] Optionally, in one implementation, the method further includes:

[0248] The first communication device sends a reference point position, a position coordinate of a target parameter and / or third information to the second communication device;

[0249] The target parameter includes one of the following: a subarray, a subarray corresponding to a downlink reference signal;

[0250] The third information includes at least one of the following:

[0251] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

[0252] The subarray topology, subarray horizontal dimensions, and subarray vertical dimensions of the antenna array;

[0253] The subarray topology of the antenna array, the antenna unit topology of the subarray, the horizontal and vertical spacing of the antenna units within the subarray, and the horizontal and vertical spacing of the antenna units between subarrays.

[0254] It should be noted that the network side device can assist the terminal in determining the specific information of the subarray that can provide services by sending the reference point position, the position coordinates of the target parameter and / or the third information to the terminal, thereby facilitating the terminal to send and receive signals.

[0255] Optionally, after determining the second area, the terminal sends an uplink signal on the uplink time domain resources, uplink frequency domain resources and / or uplink spatial domain resources associated with the sub-array within the second area according to the network side equipment or protocol configuration; and receives a downlink signal on the downlink time domain resources, downlink frequency domain resources and / or downlink spatial domain resources associated with the sub-array within the second area.

[0256] It should be noted that the embodiments of the present application can achieve the following beneficial effects:

[0257] On the terminal side, after determining the target area, the terminal only needs to detect the signals on the time-frequency domain resources associated with the subarrays within the target area, and process and demodulate these signals. It does not need to detect the signals of all subarrays. This can reduce the complexity of signal processing and calculation on the terminal side, and reduce the time and energy consumption of signal detection.

[0258] On the network side, after determining the target area for each terminal, the network only needs to keep the subarrays that serve the terminals open and can dynamically shut down subarrays that do not serve any terminals, thereby better achieving energy conservation on the network side. In particular, when terminals are unevenly distributed, idle subarrays can be shut down, reducing power consumption on the network side.

[0259] For the communication system, after the first communication device determines the target area, it indicates the target area to the second communication device through the first information, so that the first communication device and the second communication device have a consistent understanding of the target area, thereby better reducing system energy consumption.

[0260] Corresponding to the implementation on the second communication device side, as shown in FIG5 , an embodiment of the present application provides a measurement feedback method, including:

[0261] Step 501: The second communication device sends a reference signal to the first communication device;

[0262] Step 502: The second communication device receives first information fed back by the first communication device, where the first information is used to indicate a target area.

[0263] The target area is determined by the first communication device based on a detection result of the reference signal, where the detection result includes at least one of a power value, signal quality, path loss, channel rank, and a channel matrix eigenvalue of the reference signal;

[0264] The first communication device is a terminal, the second communication device is a network-side device, the target area is a first area, and the first area is a partial antenna area of ​​the second communication device; or

[0265] The first communication device is a network-side device, the second communication device is a terminal, the target area is a second area, and the second area is a partial antenna area of ​​the first communication device.

[0266] Optionally, the first area includes an antenna area of ​​the second communication device corresponding to the reference signal whose detection result meets the target condition; or,

[0267] The second area includes an antenna area of ​​the first communication device corresponding to the reference signal whose detection result meets the target condition;

[0268] The target conditions include at least one of the following:

[0269] The ratio of the power value to the total received power is greater than or equal to the power detection threshold;

[0270] The signal quality is greater than or equal to the quality detection threshold;

[0271] The path loss is less than or equal to the path loss threshold;

[0272] The channel rank is greater than or equal to the channel rank threshold;

[0273] The eigenvalue of the channel matrix is ​​greater than or equal to the eigenvalue threshold.

[0274] Optionally, when the second communication device is a network-side device, the first information includes at least one of the following:

[0275] identification information of subarrays within the first area, each of the subarrays occupying a portion of the antenna area;

[0276] service status indication information of all sub-arrays of the second communication device;

[0277] feature information of the first region, where the feature information is used to indicate a region shape of the first region;

[0278] Identification information of a resource set corresponding to the reference signal associated with the first area.

[0279] Optionally, when the second communication device is a terminal, the first information includes at least one of the following:

[0280] identification information of subarrays within the second area, each of the subarrays occupying a portion of the antenna area;

[0281] service status indication information of all sub-arrays of the first communication device;

[0282] characteristic information of the second region, where the characteristic information is used to indicate a region shape of the second region;

[0283] identification information of a resource set corresponding to the reference signal associated with the second area;

[0284] The resource information corresponding to the reference signal associated with the second area includes at least one of the following: time domain resources, frequency domain resources, and spatial domain resources.

[0285] Optionally, when the second communication device is a network-side device, the method further includes:

[0286] The second communication device receives the detection result within the target area sent by the first communication device.

[0287] Optionally, when the second communication device is a network-side device, the method further includes:

[0288] first configuration information sent by the second communication device to the first communication device;

[0289] The first configuration information includes at least one of the following:

[0290] The mapping relationship between identification information of different subarrays and downlink reference signal resource information;

[0291] A resource set includes a mapping relationship between a subarray and downlink reference signal resource information.

[0292] Optionally, the downlink reference signal resource information includes at least one of the following:

[0293] Time domain resources;

[0294] Frequency domain resources;

[0295] Airspace resources.

[0296] Optionally, when the second communication device is a network-side device, the method further includes:

[0297] The second communication device sends second configuration information to the first communication device;

[0298] The second configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0299] Optionally, when the second communication device is a network-side device, the method further includes:

[0300] The second communication device sends the reference point position, the position coordinates of the target parameter and / or the second information to the first communication device;

[0301] The target parameter includes one of the following: a subarray, a subarray corresponding to a downlink reference signal;

[0302] The second information includes at least one of the following:

[0303] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

[0304] The subarray topology, subarray horizontal dimensions, and subarray vertical dimensions of the antenna array;

[0305] The subarray topology of the antenna array, the antenna unit topology of the subarray, the horizontal and vertical spacing of the antenna units within the subarray, and the horizontal and vertical spacing of the antenna units between subarrays.

[0306] Optionally, when the second communication device is a network side device, the sending a reference signal to the first communication device includes:

[0307] The second communication device sends the reference signal to the first communication device in an orthogonal manner through each subarray, or in a time-division manner.

[0308] Optionally, when the second communication device is a terminal, the method further includes:

[0309] The second communication device receives third configuration information sent by the first communication device;

[0310] The third configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0311] Optionally, the antenna subarray physical topology information includes at least one of the following:

[0312] Formation information of sub-arrays of the antenna array;

[0313] sub-array topology of the antenna array;

[0314] Horizontal dimensions of the antenna array;

[0315] Antenna array vertical dimensions;

[0316] Subarray horizontal size;

[0317] Subarray vertical size;

[0318] The antenna element topology of the subarray;

[0319] The horizontal and vertical spacing of antenna elements within a subarray;

[0320] horizontal and vertical spacing of antenna elements between subarrays;

[0321] Number of antenna units.

[0322] Optionally, when the second communication device is a terminal, the method further includes:

[0323] The second communication device receives the reference point position, the position coordinates of the target parameter and / or the third information sent by the first communication device;

[0324] The target parameter includes one of the following: a subarray, a subarray corresponding to a downlink reference signal;

[0325] The third information includes at least one of the following:

[0326] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

[0327] The subarray topology, subarray horizontal dimensions, and subarray vertical dimensions of the antenna array;

[0328] The subarray topology of the antenna array, the antenna unit topology of the subarray, the horizontal and vertical spacing of the antenna units within the subarray, and the horizontal and vertical spacing of the antenna units between subarrays.

[0329] It should be noted that all descriptions on the second communication device side in the above embodiments are applicable to the embodiments of the measurement feedback method applied to the second communication device side, and can achieve the same technical effects, and will not be repeated here.

[0330] The measurement feedback method provided in the embodiment of the present application can be executed by a measurement feedback device. In the embodiment of the present application, the measurement feedback device provided in the embodiment of the present application is described by taking the measurement feedback device executing the measurement feedback method as an example.

[0331] As shown in FIG6 , a measurement feedback apparatus 600 according to an embodiment of the present application, applied to a first communication device, includes:

[0332] A detection module 601 is configured to detect a reference signal sent by a second communication device;

[0333] A determination module 602 is configured to determine a target area based on the detection result of the reference signal;

[0334] A first sending module 603 is configured to send first information to the second communication device, where the first information is used to indicate the target area;

[0335] The detection result includes at least one of the power value, signal quality, path loss, channel rank, and channel matrix eigenvalue of the reference signal;

[0336] The first communication device is a terminal, the second communication device is a network-side device, the target area is a first area, and the first area is a partial antenna area of ​​the second communication device; or

[0337] The first communication device is a network-side device, the second communication device is a terminal, the target area is a second area, and the second area is a partial antenna area of ​​the first communication device.

[0338] Optionally, the first area includes an antenna area of ​​the second communication device corresponding to the reference signal whose detection result meets the target condition; or,

[0339] The second area includes an antenna area of ​​the first communication device corresponding to the reference signal whose detection result meets the target condition;

[0340] The target conditions include at least one of the following:

[0341] The ratio of the power value to the total received power is greater than or equal to the power detection threshold;

[0342] The signal quality is greater than or equal to the quality detection threshold;

[0343] The path loss is less than or equal to the path loss threshold;

[0344] The channel rank is greater than or equal to the channel rank threshold;

[0345] The eigenvalue of the channel matrix is ​​greater than or equal to the eigenvalue threshold.

[0346] Optionally, the determining module 602 is configured to:

[0347] If the reference signal whose detection result satisfies the target condition includes multiple target subarrays, a target area is determined in the multiple target subarrays according to the maximum number N of serving subarrays.

[0348] Optionally, when the first communication device is a terminal, the first information includes at least one of the following:

[0349] identification information of subarrays within the first area, each of the subarrays occupying a portion of the antenna area;

[0350] service status indication information of all sub-arrays of the second communication device;

[0351] feature information of the first region, where the feature information is used to indicate a region shape of the first region;

[0352] Identification information of a resource set corresponding to the reference signal associated with the first area.

[0353] Optionally, when the first communication device is a network-side device, the first information includes at least one of the following:

[0354] identification information of subarrays within the second area, each of the subarrays occupying a portion of the antenna area;

[0355] service status indication information of all sub-arrays of the first communication device;

[0356] characteristic information of the second region, where the characteristic information is used to indicate a region shape of the second region;

[0357] identification information of a resource set corresponding to the reference signal associated with the second area;

[0358] The resource information corresponding to the reference signal associated with the second area includes at least one of the following: time domain resources, frequency domain resources, and spatial domain resources.

[0359] Optionally, when the first communication device is a terminal, the apparatus further includes:

[0360] A second acquisition module is used to acquire the first configuration information;

[0361] The first configuration information includes at least one of the following:

[0362] The mapping relationship between identification information of different subarrays and downlink reference signal resource information;

[0363] A resource set includes a mapping relationship between a subarray and downlink reference signal resource information.

[0364] Optionally, the downlink reference signal resource information includes at least one of the following:

[0365] Time domain resources;

[0366] Frequency domain resources;

[0367] Airspace resources.

[0368] Optionally, when the first communication device is a terminal, the apparatus further includes:

[0369] A second receiving module, configured to receive second configuration information sent by the second communication device;

[0370] The second configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0371] Optionally, when the first communication device is a terminal, the apparatus further includes:

[0372] The third acquisition module is used to obtain the position coordinates of the target parameter and the reference point position;

[0373] The target parameter includes one of the following: a subarray, and a subarray corresponding to a downlink reference signal.

[0374] Optionally, the reference point position is indicated by a second communication device.

[0375] Optionally, the method for obtaining the position coordinates of the target parameter includes at least one of the following:

[0376] receiving the position coordinates of the target parameter sent by the second communication device;

[0377] determining the position coordinates of the target parameter according to the second information sent by the second communication device and the reference point position;

[0378] The second information includes at least one of the following:

[0379] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

[0380] The subarray topology, subarray horizontal dimensions, and subarray vertical dimensions of the antenna array;

[0381] The subarray topology of the antenna array, the antenna unit topology of the subarray, the horizontal and vertical spacing of the antenna units within the subarray, and the horizontal and vertical spacing of the antenna units between subarrays.

[0382] Optionally, when the first communication device is a terminal, the apparatus further includes:

[0383] The third sending module is configured to send the detection result within the target area to the second communication device.

[0384] Optionally, when the first communication device is a network-side device, the apparatus further includes:

[0385] a fourth sending module, configured to send third configuration information to the second communication device;

[0386] The third configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0387] Optionally, the antenna subarray physical topology information includes at least one of the following:

[0388] Formation information of sub-arrays of the antenna array;

[0389] sub-array topology of the antenna array;

[0390] Horizontal dimensions of the antenna array;

[0391] Antenna array vertical dimensions;

[0392] Subarray horizontal size;

[0393] Subarray vertical size;

[0394] The antenna element topology of the subarray;

[0395] The horizontal and vertical spacing of antenna elements within a subarray;

[0396] horizontal and vertical spacing of antenna elements between subarrays;

[0397] Number of antenna units.

[0398] Optionally, when the first communication device is a network-side device, the apparatus further includes:

[0399] a fifth sending module, configured to send a reference point position, a position coordinate of a target parameter and / or third information to the second communication device;

[0400] The target parameter includes one of the following: a subarray, a subarray corresponding to a downlink reference signal;

[0401] The third information includes at least one of the following:

[0402] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

[0403] The subarray topology, subarray horizontal dimensions, and subarray vertical dimensions of the antenna array;

[0404] The subarray topology of the antenna array, the antenna unit topology of the subarray, the horizontal and vertical spacing of the antenna units within the subarray, and the horizontal and vertical spacing of the antenna units between subarrays.

[0405] The measurement feedback device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal, or it can be other devices other than a terminal. For example, the terminal can include but is not limited to the types of terminal 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0406] An embodiment of the present application further provides a communication device, the communication device being a first communication device, comprising a processor and a communication interface, wherein the processor is configured to detect a reference signal sent by a second communication device;

[0407] determining a target area based on a detection result of the reference signal;

[0408] The communication interface is configured to send first information to the second communication device, where the first information is used to indicate the target area;

[0409] The detection result includes at least one of the power value, signal quality, path loss, channel rank, and channel matrix eigenvalue of the reference signal;

[0410] The first communication device is a terminal, the second communication device is a network-side device, the target area is a first area, and the first area is a partial antenna area of ​​the second communication device; or

[0411] The first communication device is a network-side device, the second communication device is a terminal, the target area is a second area, and the second area is a partial antenna area of ​​the first communication device.

[0412] Optionally, the first area includes an antenna area of ​​the second communication device corresponding to the reference signal whose detection result meets the target condition; or,

[0413] The second area includes an antenna area of ​​the first communication device corresponding to the reference signal whose detection result meets the target condition;

[0414] The target conditions include at least one of the following:

[0415] The ratio of the power value to the total received power is greater than or equal to the power detection threshold;

[0416] The signal quality is greater than or equal to the quality detection threshold;

[0417] The path loss is less than or equal to the path loss threshold;

[0418] The channel rank is greater than or equal to the channel rank threshold;

[0419] The eigenvalue of the channel matrix is ​​greater than or equal to the eigenvalue threshold.

[0420] Optionally, the processor is configured to:

[0421] If the reference signal whose detection result satisfies the target condition includes multiple target subarrays, a target area is determined in the multiple target subarrays according to the maximum number N of serving subarrays.

[0422] Optionally, when the first communication device is a terminal, the first information includes at least one of the following:

[0423] identification information of subarrays within the first area, each of the subarrays occupying a portion of the antenna area;

[0424] service status indication information of all sub-arrays of the second communication device;

[0425] feature information of the first region, where the feature information is used to indicate a region shape of the first region;

[0426] Identification information of a resource set corresponding to the reference signal associated with the first area.

[0427] Optionally, when the first communication device is a network-side device, the first information includes at least one of the following:

[0428] identification information of subarrays within the second area, each of the subarrays occupying a portion of the antenna area;

[0429] service status indication information of all sub-arrays of the first communication device;

[0430] characteristic information of the second region, where the characteristic information is used to indicate a region shape of the second region;

[0431] identification information of a resource set corresponding to the reference signal associated with the second area;

[0432] The resource information corresponding to the reference signal associated with the second area includes at least one of the following: time domain resources, frequency domain resources, and spatial domain resources.

[0433] Optionally, when the first communication device is a terminal, the processor is further configured to:

[0434] Obtaining first configuration information;

[0435] The first configuration information includes at least one of the following:

[0436] The mapping relationship between identification information of different subarrays and downlink reference signal resource information;

[0437] A resource set includes a mapping relationship between a subarray and downlink reference signal resource information.

[0438] Optionally, the downlink reference signal resource information includes at least one of the following:

[0439] Time domain resources;

[0440] Frequency domain resources;

[0441] Airspace resources.

[0442] Optionally, when the first communication device is a terminal, the communication interface is further configured to:

[0443] receiving second configuration information sent by the second communication device;

[0444] The second configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0445] Optionally, when the first communication device is a terminal, the processor is further configured to:

[0446] Get the position coordinates of the target parameters and the reference point position;

[0447] The target parameter includes one of the following: a subarray, and a subarray corresponding to a downlink reference signal.

[0448] Optionally, the reference point position is indicated by a second communication device.

[0449] Optionally, the communication interface is used to:

[0450] receiving the position coordinates of the target parameter sent by the second communication device; and / or

[0451] The processor is configured to determine the position coordinates of the target parameter based on the second information sent by the second communication device and the reference point position;

[0452] The second information includes at least one of the following:

[0453] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

[0454] The subarray topology, subarray horizontal dimensions, and subarray vertical dimensions of the antenna array;

[0455] The subarray topology of the antenna array, the antenna unit topology of the subarray, the horizontal and vertical spacing of the antenna units within the subarray, and the horizontal and vertical spacing of the antenna units between subarrays.

[0456] Optionally, when the first communication device is a terminal, the communication interface is further configured to:

[0457] The detection result within the target area is sent to the second communication device.

[0458] Optionally, when the first communication device is a network-side device, the communication interface is further configured to:

[0459] Sending third configuration information to the second communication device;

[0460] The third configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0461] Optionally, the antenna subarray physical topology information includes at least one of the following:

[0462] Formation information of sub-arrays of the antenna array;

[0463] sub-array topology of the antenna array;

[0464] Horizontal dimensions of the antenna array;

[0465] Antenna array vertical dimensions;

[0466] Subarray horizontal size;

[0467] Subarray vertical size;

[0468] The antenna element topology of the subarray;

[0469] The horizontal and vertical spacing of antenna elements within a subarray;

[0470] horizontal and vertical spacing of antenna elements between subarrays;

[0471] Number of antenna units.

[0472] Optionally, when the first communication device is a network-side device, the communication interface is further configured to:

[0473] Sending the reference point position, the position coordinates of the target parameter and / or the third information to the second communication device;

[0474] The target parameter includes one of the following: a subarray, a subarray corresponding to a downlink reference signal;

[0475] The third information includes at least one of the following:

[0476] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

[0477] The subarray topology, subarray horizontal dimensions, and subarray vertical dimensions of the antenna array;

[0478] The subarray topology of the antenna array, the antenna unit topology of the subarray, the horizontal and vertical spacing of the antenna units within the subarray, and the horizontal and vertical spacing of the antenna units between subarrays.

[0479] Optionally, an embodiment of the present application further provides a communication device, wherein the communication device is a first communication device, including a processor, a memory, and a program or instruction stored in the memory and executable on the processor. When the program or instruction is executed by the processor, the various processes of the above-mentioned measurement feedback method embodiment are implemented, and the same technical effect is achieved. To avoid repetition, they are not described here. In the case where the first communication device is a terminal, specifically, Figure 7 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.

[0480] The terminal 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709 and at least some of the components of the processor 710.

[0481] Those skilled in the art will appreciate that the terminal 700 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 710 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The terminal structure shown in FIG7 does not limit the terminal. The terminal may include more or fewer components than shown, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0482] It should be understood that in an embodiment of the present application, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042, and the graphics processor 7041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 707 includes a touch panel 7071 and at least one of other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include two parts: a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and an operating stick, which will not be repeated here.

[0483] In the embodiment of the present application, after receiving downlink data from the access network device, the radio frequency unit 701 can transmit the data to the processor 710 for processing. In addition, the radio frequency unit 701 can send uplink data to the network-side device. Generally, the radio frequency unit 701 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0484] The memory 709 can be used to store software programs or instructions and various data. The memory 709 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 709 may include a volatile memory or a non-volatile memory, or the memory 709 may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct memory bus random access memory (DRRAM). The memory 709 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0485] Processor 710 may include one or more processing units. Optionally, processor 710 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 710.

[0486] The processor 710 is configured to:

[0487] detecting a reference signal sent by a second communication device;

[0488] determining a target area based on a detection result of the reference signal;

[0489] The communication interface is configured to send first information to the second communication device, where the first information is used to indicate the target area;

[0490] The detection result includes at least one of the power value, signal quality, path loss, channel rank, and channel matrix eigenvalue of the reference signal;

[0491] The first communication device is a terminal, the second communication device is a network-side device, the target area is a first area, and the first area is a partial antenna area of ​​the second communication device; or

[0492] The first communication device is a network-side device, the second communication device is a terminal, the target area is a second area, and the second area is a partial antenna area of ​​the first communication device.

[0493] Optionally, the first area includes an antenna area of ​​the second communication device corresponding to the reference signal whose detection result meets the target condition; or,

[0494] The second area includes an antenna area of ​​the first communication device corresponding to the reference signal whose detection result meets the target condition;

[0495] The target conditions include at least one of the following:

[0496] The ratio of the power value to the total received power is greater than or equal to the power detection threshold;

[0497] The signal quality is greater than or equal to the quality detection threshold;

[0498] The path loss is less than or equal to the path loss threshold;

[0499] The channel rank is greater than or equal to the channel rank threshold;

[0500] The eigenvalue of the channel matrix is ​​greater than or equal to the eigenvalue threshold.

[0501] Optionally, the radio frequency unit 701 is configured to:

[0502] If the reference signal whose detection result satisfies the target condition includes multiple target subarrays, a target area is determined in the multiple target subarrays according to the maximum number N of serving subarrays.

[0503] Optionally, when the first communication device is a terminal, the first information includes at least one of the following:

[0504] identification information of subarrays within the first area, each of the subarrays occupying a portion of the antenna area;

[0505] service status indication information of all sub-arrays of the second communication device;

[0506] feature information of the first region, where the feature information is used to indicate a region shape of the first region;

[0507] Identification information of a resource set corresponding to the reference signal associated with the first area.

[0508] Optionally, when the first communication device is a network-side device, the first information includes at least one of the following:

[0509] identification information of subarrays within the second area, each of the subarrays occupying a portion of the antenna area;

[0510] service status indication information of all sub-arrays of the first communication device;

[0511] characteristic information of the second region, where the characteristic information is used to indicate a region shape of the second region;

[0512] identification information of a resource set corresponding to the reference signal associated with the second area;

[0513] The resource information corresponding to the reference signal associated with the second area includes at least one of the following: time domain resources, frequency domain resources, and spatial domain resources.

[0514] Optionally, when the first communication device is a terminal, the processor 710 is further configured to:

[0515] Obtaining first configuration information;

[0516] The first configuration information includes at least one of the following:

[0517] The mapping relationship between identification information of different subarrays and downlink reference signal resource information;

[0518] A resource set includes a mapping relationship between a subarray and downlink reference signal resource information.

[0519] Optionally, the downlink reference signal resource information includes at least one of the following:

[0520] Time domain resources;

[0521] Frequency domain resources;

[0522] Airspace resources.

[0523] Optionally, when the first communication device is a terminal, the radio frequency unit 701 is further configured to:

[0524] receiving second configuration information sent by the second communication device;

[0525] The second configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0526] Optionally, when the first communication device is a terminal, the processor 710 is further configured to:

[0527] Get the position coordinates of the target parameters and the reference point position;

[0528] The target parameter includes one of the following: a subarray, and a subarray corresponding to a downlink reference signal.

[0529] Optionally, the reference point position is indicated by a second communication device.

[0530] Optionally, the radio frequency unit 701 is further configured to:

[0531] receiving the position coordinates of the target parameter sent by the second communication device; and / or

[0532] The processor 710 is configured to determine the position coordinates of the target parameter according to the second information sent by the second communication device and the reference point position;

[0533] The second information includes at least one of the following:

[0534] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

[0535] The subarray topology, subarray horizontal dimensions, and subarray vertical dimensions of the antenna array;

[0536] The subarray topology of the antenna array, the antenna unit topology of the subarray, the horizontal and vertical spacing of the antenna units within the subarray, and the horizontal and vertical spacing of the antenna units between subarrays.

[0537] Optionally, when the first communication device is a terminal, the radio frequency unit 701 is further configured to:

[0538] The detection result within the target area is sent to the second communication device.

[0539] Optionally, when the first communication device is a network side device, the radio frequency unit 701 is further configured to:

[0540] Sending third configuration information to the second communication device;

[0541] The third configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0542] Optionally, the antenna subarray physical topology information includes at least one of the following:

[0543] Formation information of sub-arrays of the antenna array;

[0544] sub-array topology of the antenna array;

[0545] Horizontal dimensions of the antenna array;

[0546] Antenna array vertical dimensions;

[0547] Subarray horizontal size;

[0548] Subarray vertical size;

[0549] The antenna element topology of the subarray;

[0550] The horizontal and vertical spacing of antenna elements within a subarray;

[0551] horizontal and vertical spacing of antenna elements between subarrays;

[0552] Number of antenna units.

[0553] Optionally, when the first communication device is a network side device, the radio frequency unit 701 is further configured to:

[0554] Sending the reference point position, the position coordinates of the target parameter and / or the third information to the second communication device;

[0555] The target parameter includes one of the following: a subarray, a subarray corresponding to a downlink reference signal;

[0556] The third information includes at least one of the following:

[0557] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

[0558] The subarray topology, subarray horizontal dimensions, and subarray vertical dimensions of the antenna array;

[0559] The subarray topology of the antenna array, the antenna unit topology of the subarray, the horizontal and vertical spacing of the antenna units within the subarray, and the horizontal and vertical spacing of the antenna units between subarrays.

[0560] Optionally, when the first communication device is a network-side device, as shown in Figure 8, the network-side device 800 includes: an antenna 801, a radio frequency device 802, a baseband device 803, a processor 804, and a memory 805. Antenna 801 is connected to radio frequency device 802. In the uplink direction, radio frequency device 802 receives information via antenna 801 and sends the received information to baseband device 803 for processing. In the downlink direction, baseband device 803 processes the information to be transmitted and sends it to radio frequency device 802. Radio frequency device 802 processes the received information and then sends it through antenna 801.

[0561] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 803 , which includes a baseband processor.

[0562] The baseband device 803 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 8, one of which is, for example, a baseband processor, which is connected to the memory 805 through a bus interface to call the program in the memory 805 and execute the network device operations shown in the above method embodiment.

[0563] The network side device may further include a network interface 806, which is, for example, a common public radio interface (CPRI).

[0564] Specifically, the network side device 800 of the embodiment of the present application also includes: instructions or programs stored in the memory 805 and can be run on the processor 804. The processor 804 calls the instructions or programs in the memory 805 to execute the methods executed by each module shown in Figure 6 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0565] Optionally, an embodiment of the present application also provides a communication device, which is a first communication device, including a processor, a memory, and a program or instruction stored in the memory and executable on the processor. When the program or instruction is executed by the processor, the various processes of the above-mentioned measurement feedback method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0566] An embodiment of the present application also provides a computer-readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned measurement feedback method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0567] The computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0568] As shown in FIG9 , a measurement feedback apparatus 900 according to an embodiment of the present application, applied to a second communication device, includes:

[0569] A second sending module 901 is configured to send a reference signal to a first communication device;

[0570] A first receiving module 902 is configured to receive first information fed back by the first communication device, where the first information is used to indicate a target area;

[0571] The target area is determined by the first communication device based on a detection result of the reference signal, where the detection result includes at least one of a power value, signal quality, path loss, channel rank, and a channel matrix eigenvalue of the reference signal;

[0572] The first communication device is a terminal, the second communication device is a network-side device, the target area is a first area, and the first area is a partial antenna area of ​​the second communication device; or

[0573] The first communication device is a network-side device, the second communication device is a terminal, the target area is a second area, and the second area is a partial antenna area of ​​the first communication device.

[0574] Optionally, the first area includes an antenna area of ​​the second communication device corresponding to the reference signal whose detection result meets the target condition; or,

[0575] The second area includes an antenna area of ​​the first communication device corresponding to the reference signal whose detection result meets the target condition;

[0576] The target conditions include at least one of the following:

[0577] The ratio of the power value to the total received power is greater than or equal to the power detection threshold;

[0578] The signal quality is greater than or equal to the quality detection threshold;

[0579] The path loss is less than or equal to the path loss threshold;

[0580] The channel rank is greater than or equal to the channel rank threshold;

[0581] The eigenvalue of the channel matrix is ​​greater than or equal to the eigenvalue threshold.

[0582] Optionally, when the second communication device is a network-side device, the first information includes at least one of the following:

[0583] identification information of subarrays within the first area, each of the subarrays occupying a portion of the antenna area;

[0584] service status indication information of all sub-arrays of the second communication device;

[0585] feature information of the first region, where the feature information is used to indicate a region shape of the first region;

[0586] Identification information of a resource set corresponding to the reference signal associated with the first area.

[0587] Optionally, when the second communication device is a terminal, the first information includes at least one of the following:

[0588] identification information of subarrays within the second area, each of the subarrays occupying a portion of the antenna area;

[0589] service status indication information of all sub-arrays of the first communication device;

[0590] characteristic information of the second region, where the characteristic information is used to indicate a region shape of the second region;

[0591] identification information of a resource set corresponding to the reference signal associated with the second area;

[0592] The resource information corresponding to the reference signal associated with the second area includes at least one of the following: time domain resources, frequency domain resources, and spatial domain resources.

[0593] Optionally, when the second communication device is a network-side device, the apparatus further includes:

[0594] The third receiving module is configured to receive the detection result within the target area sent by the first communication device.

[0595] Optionally, when the second communication device is a network-side device, the apparatus further includes:

[0596] A sixth sending module, configured to send first configuration information to the first communication device;

[0597] The first configuration information includes at least one of the following:

[0598] The mapping relationship between identification information of different subarrays and downlink reference signal resource information;

[0599] A resource set includes a mapping relationship between a subarray and downlink reference signal resource information.

[0600] Optionally, the downlink reference signal resource information includes at least one of the following:

[0601] Time domain resources;

[0602] Frequency domain resources;

[0603] Airspace resources.

[0604] Optionally, when the second communication device is a network-side device, the apparatus further includes:

[0605] a seventh sending module, configured to send second configuration information to the first communication device;

[0606] The second configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0607] Optionally, when the second communication device is a network-side device, the apparatus further includes:

[0608] an eighth sending module, configured to send a reference point position, a position coordinate of a target parameter and / or second information to the first communication device;

[0609] The target parameter includes one of the following: a subarray, a subarray corresponding to a downlink reference signal;

[0610] The second information includes at least one of the following:

[0611] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

[0612] The subarray topology, subarray horizontal dimensions, and subarray vertical dimensions of the antenna array;

[0613] The subarray topology of the antenna array, the antenna unit topology of the subarray, the horizontal and vertical spacing of the antenna units within the subarray, and the horizontal and vertical spacing of the antenna units between subarrays.

[0614] Optionally, when the second communication device is a network-side device, the second sending module 901 is configured to:

[0615] The reference signals are sent to the first communication device in an orthogonal manner through each subarray, or in a time-division manner.

[0616] Optionally, when the second communication device is a terminal, the apparatus further includes:

[0617] a fourth receiving module, configured to receive third configuration information sent by the first communication device;

[0618] The third configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0619] Optionally, the antenna subarray physical topology information includes at least one of the following:

[0620] Formation information of sub-arrays of the antenna array;

[0621] sub-array topology of the antenna array;

[0622] Horizontal dimensions of the antenna array;

[0623] Antenna array vertical dimensions;

[0624] Subarray horizontal size;

[0625] Subarray vertical size;

[0626] The antenna element topology of the subarray;

[0627] The horizontal and vertical spacing of antenna elements within a subarray;

[0628] horizontal and vertical spacing of antenna elements between subarrays;

[0629] Number of antenna units.

[0630] Optionally, when the second communication device is a terminal, the apparatus further includes:

[0631] a fifth receiving module, configured to receive the reference point position, the position coordinates of the target parameter and / or the third information sent by the first communication device;

[0632] The target parameter includes one of the following: a subarray, a subarray corresponding to a downlink reference signal;

[0633] The third information includes at least one of the following:

[0634] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

[0635] The subarray topology, subarray horizontal dimensions, and subarray vertical dimensions of the antenna array;

[0636] The subarray topology of the antenna array, the antenna unit topology of the subarray, the horizontal and vertical spacing of the antenna units within the subarray, and the horizontal and vertical spacing of the antenna units between subarrays.

[0637] It should be noted that the device embodiment corresponds to the above method, and all implementation methods in the above method embodiment are applicable to the device embodiment and can achieve the same technical effects.

[0638] The measurement feedback device provided in the embodiment of the present application can implement each process implemented in the method embodiment of Figure 5 and achieve the same technical effect. To avoid repetition, it will not be described here.

[0639] An embodiment of the present application further provides a communication device, the communication device being a second communication device, including a processor and a communication interface, the communication interface being configured to send a reference signal to the first communication device;

[0640] receiving first information fed back by the first communication device, where the first information is used to indicate a target area;

[0641] The target area is determined by the first communication device based on a detection result of the reference signal, where the detection result includes at least one of a power value, signal quality, path loss, channel rank, and a channel matrix eigenvalue of the reference signal;

[0642] The first communication device is a terminal, the second communication device is a network-side device, the target area is a first area, and the first area is a partial antenna area of ​​the second communication device; or

[0643] The first communication device is a network-side device, the second communication device is a terminal, the target area is a second area, and the second area is a partial antenna area of ​​the first communication device.

[0644] Optionally, the first area includes an antenna area of ​​the second communication device corresponding to the reference signal whose detection result meets the target condition; or,

[0645] The second area includes an antenna area of ​​the first communication device corresponding to the reference signal whose detection result meets the target condition;

[0646] The target conditions include at least one of the following:

[0647] The ratio of the power value to the total received power is greater than or equal to the power detection threshold;

[0648] The signal quality is greater than or equal to the quality detection threshold;

[0649] The path loss is less than or equal to the path loss threshold;

[0650] The channel rank is greater than or equal to the channel rank threshold;

[0651] The eigenvalue of the channel matrix is ​​greater than or equal to the eigenvalue threshold.

[0652] Optionally, when the second communication device is a network-side device, the first information includes at least one of the following:

[0653] identification information of subarrays within the first area, each of the subarrays occupying a portion of the antenna area;

[0654] service status indication information of all sub-arrays of the second communication device;

[0655] feature information of the first region, where the feature information is used to indicate a region shape of the first region;

[0656] Identification information of a resource set corresponding to the reference signal associated with the first area.

[0657] Optionally, when the second communication device is a terminal, the first information includes at least one of the following:

[0658] identification information of subarrays within the second area, each of the subarrays occupying a portion of the antenna area;

[0659] service status indication information of all sub-arrays of the first communication device;

[0660] characteristic information of the second region, where the characteristic information is used to indicate a region shape of the second region;

[0661] identification information of a resource set corresponding to the reference signal associated with the second area;

[0662] The resource information corresponding to the reference signal associated with the second area includes at least one of the following: time domain resources, frequency domain resources, and spatial domain resources.

[0663] Optionally, when the second communication device is a network-side device, the communication interface is further configured to:

[0664] Receive the detection result within the target area sent by the first communication device.

[0665] Optionally, when the second communication device is a network-side device, the communication interface is further configured to:

[0666] First configuration information sent to the first communication device;

[0667] The first configuration information includes at least one of the following:

[0668] The mapping relationship between identification information of different subarrays and downlink reference signal resource information;

[0669] A resource set includes a mapping relationship between a subarray and downlink reference signal resource information.

[0670] Optionally, the downlink reference signal resource information includes at least one of the following:

[0671] Time domain resources;

[0672] Frequency domain resources;

[0673] Airspace resources.

[0674] Optionally, when the second communication device is a network-side device, the communication interface is further configured to:

[0675] Sending second configuration information to the first communication device;

[0676] The second configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0677] Optionally, when the second communication device is a network-side device, the communication interface is further configured to:

[0678] Sending a reference point position, a position coordinate of a target parameter and / or second information to the first communication device;

[0679] The target parameter includes one of the following: a subarray, a subarray corresponding to a downlink reference signal;

[0680] The second information includes at least one of the following:

[0681] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

[0682] The subarray topology, subarray horizontal dimensions, and subarray vertical dimensions of the antenna array;

[0683] The subarray topology of the antenna array, the antenna unit topology of the subarray, the horizontal and vertical spacing of the antenna units within the subarray, and the horizontal and vertical spacing of the antenna units between subarrays.

[0684] Optionally, when the second communication device is a network-side device, the communication interface is used to:

[0685] The reference signals are sent to the first communication device in an orthogonal manner through each subarray, or in a time-division manner.

[0686] Optionally, when the second communication device is a terminal, the communication interface is further configured to:

[0687] receiving third configuration information sent by the first communication device;

[0688] The third configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0689] Optionally, the antenna subarray physical topology information includes at least one of the following:

[0690] Formation information of sub-arrays of the antenna array;

[0691] sub-array topology of the antenna array;

[0692] Horizontal dimensions of the antenna array;

[0693] Antenna array vertical dimensions;

[0694] Subarray horizontal size;

[0695] Subarray vertical size;

[0696] The antenna element topology of the subarray;

[0697] The horizontal and vertical spacing of antenna elements within a subarray;

[0698] horizontal and vertical spacing of antenna elements between subarrays;

[0699] Number of antenna units.

[0700] Optionally, when the second communication device is a terminal, the communication interface is further configured to:

[0701] receiving a reference point position, a position coordinate of a target parameter, and / or third information sent by the first communication device;

[0702] The target parameter includes one of the following: a subarray, a subarray corresponding to a downlink reference signal;

[0703] The third information includes at least one of the following:

[0704] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

[0705] The subarray topology, subarray horizontal dimensions, and subarray vertical dimensions of the antenna array;

[0706] The subarray topology of the antenna array, the antenna unit topology of the subarray, the horizontal and vertical spacing of the antenna units within the subarray, and the horizontal and vertical spacing of the antenna units between subarrays.

[0707] Optionally, the structure of the second communication device can be seen in Figure 7 or Figure 8, which will not be described in detail here. The second communication device of the embodiment of the present application also includes: instructions or programs stored in the memory and executable on the processor, and the processor calls the instructions or programs in the memory to execute the method executed by each module shown in Figure 9, and achieves the same technical effect. To avoid repetition, it will not be described here.

[0708] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned measurement feedback method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0709] The processor is the processor in the network-side device described in the above embodiment. The readable storage medium can be non-volatile or non-transient. The readable storage medium can include a computer-readable storage medium, such as a computer read-only memory (ROM), random access memory (RAM), a magnetic disk, or an optical disk.

[0710] Optionally, as shown in Figure 10, an embodiment of the present application further provides a communication device 1000, including a processor 1001 and a memory 1002, wherein the memory 1002 stores a program or instruction that can be run on the processor 1001. For example, when the communication device 1000 is a first communication device, the program or instruction is executed by the processor 1001 to implement the various steps of the above-mentioned measurement feedback method embodiment and can achieve the same technical effect. When the communication device 1000 is a second communication device, the program or instruction is executed by the processor 1001 to implement the various steps of the above-mentioned measurement feedback method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0711] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned measurement feedback method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0712] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0713] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned information transmission method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0714] An embodiment of the present application further provides a communication system, including: a first communication device and a second communication device, wherein the first communication device can be used to execute the steps of the above-mentioned measurement feedback method, and the second communication device can be used to execute the steps of the above-mentioned measurement feedback method.

[0715] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0716] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0717] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A measurement feedback method, comprising: The first communication device detects a reference signal sent by the second communication device; The first communication device determines a target area based on a detection result of the reference signal; The first communication device sends first information to the second communication device, where the first information is used to indicate the target area; The detection result includes at least one of the power value, signal quality, path loss, channel rank, and channel matrix eigenvalue of the reference signal; The first communication device is a terminal, the second communication device is a network side device, the target area is a first area, and the first area is a partial antenna area of ​​the second communication device; or The first communication device is a network side device, the second communication device is a terminal, the target area is a second area, and the second area is a partial antenna area of ​​the first communication device.

2. The method according to claim 1, wherein: The first area includes an antenna area of ​​a second communication device corresponding to the reference signal whose detection result meets the target condition; or, The second area includes an antenna area of ​​the first communication device corresponding to the reference signal whose detection result meets the target condition; The target condition includes at least one of the following: The ratio of the power value to the total received power is greater than or equal to the power detection threshold; The signal quality is greater than or equal to the quality detection threshold; The path loss is less than or equal to the path loss threshold; The channel rank is greater than or equal to the channel rank threshold; The eigenvalue of the channel matrix is ​​greater than or equal to the eigenvalue threshold.

3. The method according to claim 2, wherein: The first communication device determines a target area based on a detection result of the reference signal, including: If the reference signal whose detection result satisfies the target condition includes multiple target subarrays, the first communication device determines a target area in the multiple target subarrays according to the maximum number N of service subarrays.

4. The method according to claim 1, wherein: When the first communication device is a terminal, the first information includes at least one of the following: Identification information of subarrays within the first area, each of the subarrays occupying a portion of the antenna area; service status indication information of all subarrays of the second communication device; feature information of the first region, where the feature information is used to indicate a region shape of the first region; The identification information of the resource set corresponding to the reference signal associated with the first area.

5. The method according to claim 1, wherein: When the first communication device is a network side device, the first information includes at least one of the following: identification information of subarrays in the second area, each of the subarrays occupying a portion of the antenna area; service status indication information of all subarrays of the first communication device; feature information of the second region, the feature information being used to indicate a region shape of the second region; identification information of a resource set corresponding to the reference signal associated with the second area; The resource information corresponding to the reference signal associated with the second area includes at least one of the following: time domain resources, frequency domain resources, and spatial domain resources.

6. The method according to any one of claims 1 to 4, wherein: In the case where the first communication device is a terminal, the method further includes: The first communication device acquires first configuration information; The first configuration information includes at least one of the following: A mapping relationship between identification information of different subarrays and downlink reference signal resource information; A resource set, wherein the resource set includes: a mapping relationship between a subarray and downlink reference signal resource information.

7. The method according to claim 6, wherein: The downlink reference signal resource information includes at least one of the following: Time domain resources; Frequency domain resources; Airspace resources.

8. The method according to any one of claims 1 to 4, wherein: In the case where the first communication device is a terminal, the method further includes: The first communication device receives second configuration information sent by the second communication device; The second configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

9. The method according to any one of claims 1 to 4, wherein: In the case where the first communication device is a terminal, the method further includes: The first communication device acquires the position coordinates of the target parameter and the reference point position; The target parameter includes one of the following: a subarray, and a subarray corresponding to a downlink reference signal.

10. The method according to claim 9, wherein: The reference point position is indicated by the second communication device.

11. The method according to claim 9, wherein: Get the position coordinates of the target parameter, including at least one of the following: The first communication device receives the position coordinates of the target parameter sent by the second communication device; The first communication device determines the position coordinates of the target parameter according to the second information sent by the second communication device and the reference point position; The second information includes at least one of the following: The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array; The subarray topology, subarray horizontal dimensions, and subarray vertical dimensions of the antenna array; The subarray topology of the antenna array, the antenna unit topology of the subarray, the horizontal and vertical spacing of the antenna units within the subarray, and the horizontal and vertical spacing of the antenna units between subarrays.

12. The method according to any one of claims 1 to 4, wherein: In the case where the first communication device is a terminal, the method further includes: The first communication device sends the detection result within the target area to the second communication device.

13. The method of claim 1, 2, 3 or 5, wherein: In the case where the first communication device is a network side device, the method further includes: The first communication device sends third configuration information to the second communication device; The third configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

14. The method according to claim 8 or 13, wherein: The antenna subarray physical topology information includes at least one of the following: Formation information of sub-arrays of the antenna array; sub-array topology of antenna array; Horizontal dimensions of the antenna array; The vertical dimensions of the antenna array; Subarray horizontal size; Subarray vertical size; The antenna element topology of the subarray; horizontal and vertical spacing of antenna elements within a subarray; horizontal and vertical spacing of antenna elements between subarrays; Number of antenna elements.

15. The method of claim 1, 2, 3 or 5, wherein: In the case where the first communication device is a network side device, the method further includes: The first communication device sends a reference point position, a position coordinate of a target parameter and / or third information to the second communication device; The target parameter includes one of the following: a subarray, a subarray corresponding to a downlink reference signal; The third information includes at least one of the following: The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array; The subarray topology, subarray horizontal dimensions, and subarray vertical dimensions of the antenna array; The subarray topology of the antenna array, the antenna unit topology of the subarray, the horizontal and vertical spacing of the antenna units within the subarray, and the horizontal and vertical spacing of the antenna units between subarrays.

16. A measurement feedback method, comprising: The second communication device sends a reference signal to the first communication device; The second communication device receives first information fed back by the first communication device, where the first information is used to indicate a target area; The target area is determined by the first communication device based on the detection result of the reference signal, and the detection result includes the power value, signal quality, path loss, channel rank, channel matrix eigenvalue of the reference signal. At least one; The first communication device is a terminal, the second communication device is a network side device, the target area is a first area, and the first area is a partial antenna area of ​​the second communication device; or The first communication device is a network side device, the second communication device is a terminal, the target area is a second area, and the second area is a partial antenna area of ​​the first communication device.

17. The method according to claim 16, wherein: The first area includes an antenna area of ​​a second communication device corresponding to the reference signal whose detection result meets the target condition; or, The second area includes an antenna area of ​​the first communication device corresponding to the reference signal whose detection result meets the target condition; The target condition includes at least one of the following: The ratio of the power value to the total received power is greater than or equal to the power detection threshold; The signal quality is greater than or equal to the quality detection threshold; The path loss is less than or equal to the path loss threshold; The channel rank is greater than or equal to the channel rank threshold; The eigenvalue of the channel matrix is ​​greater than or equal to the eigenvalue threshold.

18. The method according to claim 16 or 17, wherein: In the case where the second communication device is a network side device, the first information includes at least one of the following: Identification information of subarrays within the first area, each of the subarrays occupying a portion of the antenna area; service status indication information of all subarrays of the second communication device; feature information of the first region, where the feature information is used to indicate a region shape of the first region; The identification information of the resource set corresponding to the reference signal associated with the first area.

19. The method according to claim 16 or 17, wherein: When the second communication device is a terminal, the first information includes at least one of the following: identification information of subarrays in the second area, each of the subarrays occupying a portion of the antenna area; service status indication information of all subarrays of the first communication device; feature information of the second region, the feature information being used to indicate a region shape of the second region; identification information of a resource set corresponding to the reference signal associated with the second area; The resource information corresponding to the reference signal associated with the second area includes at least one of the following: time domain resources, frequency domain resources, and spatial domain resources.

20. The method of claim 16, 17 or 18, wherein: In the case where the second communication device is a network side device, the method further includes: The second communication device receives the detection result within the target area sent by the first communication device.

21. The method of claim 16, 17 or 18, wherein: In the case where the second communication device is a network side device, the method further includes: first configuration information sent by the second communication device to the first communication device; The first configuration information includes at least one of the following: A mapping relationship between identification information of different subarrays and downlink reference signal resource information; A resource set, wherein the resource set includes: a mapping relationship between a subarray and downlink reference signal resource information.

22. The method according to claim 21, wherein: The downlink reference signal resource information includes at least one of the following: Time domain resources; Frequency domain resources; Airspace resources.

23. The method of claim 16, 17 or 18, wherein: In the case where the second communication device is a network side device, the method further includes: The second communication device sends second configuration information to the first communication device; The second configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

24. The method of claim 16, 17 or 18, wherein: In the case where the second communication device is a network side device, the method further includes: The second communication device sends a reference point position, a position coordinate of a target parameter and / or second information to the first communication device; The target parameter includes one of the following: a subarray, a subarray corresponding to a downlink reference signal; The second information includes at least one of the following: The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array; The subarray topology, subarray horizontal dimensions, and subarray vertical dimensions of the antenna array; The subarray topology of the antenna array, the antenna unit topology of the subarray, the horizontal and vertical spacing of the antenna units within the subarray, and the horizontal and vertical spacing of the antenna units between subarrays.

25. The method of claim 16, 17 or 18, wherein: In a case where the second communication device is a network side device, the sending a reference signal to the first communication device includes: The second communication device sends reference signals to the first communication device in an orthogonal manner through each subarray, or in a time-division manner.

26. The method of claim 16, 17 or 19, wherein: In the case where the second communication device is a terminal, the method further includes: The second communication device receives third configuration information sent by the first communication device; The third configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

27. The method according to claim 23 or 26, wherein: The antenna subarray physical topology information includes at least one of the following: Formation information of sub-arrays of the antenna array; sub-array topology of antenna array; Horizontal dimensions of the antenna array; The vertical dimensions of the antenna array; Subarray horizontal size; Subarray vertical size; The antenna element topology of the subarray; horizontal and vertical spacing of antenna elements within a subarray; horizontal and vertical spacing of antenna elements between subarrays; Number of antenna elements.

28. The method of claim 16, 17 or 19, wherein: In the case where the second communication device is a terminal, the method further includes: The second communication device receives the reference point position, the position coordinates of the target parameter and / or the third information sent by the first communication device; The target parameter includes one of the following: a subarray, a subarray corresponding to a downlink reference signal; The third information includes at least one of the following: The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array; The subarray topology, subarray horizontal dimensions, and subarray vertical dimensions of the antenna array; The subarray topology of the antenna array, the antenna unit topology of the subarray, the horizontal and vertical spacing of the antenna units within the subarray, and the horizontal and vertical spacing of the antenna units between subarrays.

29. A measurement feedback device, applied to a first communication device, comprising: A detection module, used to detect a reference signal sent by the second communication device; A determination module, configured to determine a target area based on a detection result of the reference signal; A first sending module, configured to send first information to the second communication device, wherein the first information is used to indicate the target area; The detection result includes at least one of the power value, signal quality, path loss, channel rank, and channel matrix eigenvalue of the reference signal; The first communication device is a terminal, the second communication device is a network side device, the target area is a first area, and the first area is a partial antenna area of ​​the second communication device; or The first communication device is a network side device, the second communication device is a terminal, the target area is a second area, and the second area is a partial antenna area of ​​the first communication device.

30. A communication device, the communication device being a first communication device, comprising a processor and a memory, the memory storing a program or instruction executable on the processor, the program or instruction implementing the steps of the measurement feedback method according to any one of claims 1 to 15 when executed by the processor.

31. A measurement feedback device, applied to a second communication device, comprising: A second sending module, configured to send a reference signal to the first communication device; A first receiving module, configured to receive first information fed back by the first communication device, where the first information is used to indicate a target area; The target area is determined by the first communication device based on a detection result of the reference signal, and the detection result includes at least one of a power value, a signal quality, a path loss, a channel rank, and a channel matrix eigenvalue of the reference signal; The first communication device is a terminal, the second communication device is a network side device, the target area is a first area, and the first area is a partial antenna area of ​​the second communication device; or The first communication device is a network side device, the second communication device is a terminal, the target area is a second area, and the second area is a partial antenna area of ​​the first communication device.

32. A communication device, which is a second communication device, comprising a processor and a memory, wherein the memory stores a program or instruction that can be executed on the processor, and when the program or instruction is executed by the processor, the steps of the measurement feedback method according to any one of claims 16 to 28 are implemented.

33. A readable storage medium storing a program or instruction, wherein the program or instruction, when executed by a processor, implements the steps of the measurement feedback method according to any one of claims 1 to 28.

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