Measurement feedback method and device and communication equipment

Abstract

The invention discloses a measurement feedback method and device and communication equipment, and belongs to the technical field of communication, and the measurement feedback method comprises the steps that first communication equipment detects a reference signal sent by second communication equipment; the first communication device determines a target area based on the detection result of the reference signal; the first communication device sends first information to the second communication device, wherein the first information is used for indicating the target area; wherein the detection result comprises at least one of the power value, the signal quality, the path loss, the channel rank and the 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.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a measurement feedback method, device and communication equipment. Background Art

[0002] As the size of the array increases, the power of the signal transmitted by the user in the near field may be mainly received by a part of the array due to the changes in the amplitude and incident wave inclination angle to each antenna array; vice versa, it may be that only the transmission signal of the antenna in a local area of ​​the array can meet the reception requirements of the terminal.

[0003] The situations discussed in the relevant protocols are basically that the entire array serves the terminal users together. Even in the discussion of network energy-saving scenarios, all users are served by the activated panels. In this case, it is not conducive to energy saving on the network side. Summary of the invention

[0004] The embodiments of the present application provide a measurement feedback method, apparatus, and communication device to achieve network energy saving in a near field area.

[0005] In a first aspect, a measurement feedback method is provided, comprising:

[0006] The first communication device detects a reference signal sent by the second communication device;

[0007] The first communication device determines a target area based on a detection result of the reference signal;

[0008] The first communication device sends first information to the second communication device, where the first information is used to indicate the target area;

[0009] 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;

[0010] 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

[0011] 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.

[0012] In a second aspect, a measurement feedback device is provided, which is applied to a first communication device, including:

[0013] A detection module, used to detect a reference signal sent by the second communication device;

[0014] A determination module, configured to determine a target area based on a detection result of the reference signal;

[0015] 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;

[0016] 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;

[0017] 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

[0018] 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.

[0019] In a third aspect, a measurement feedback method is provided, comprising:

[0020] The second communication device sends a reference signal to the first communication device;

[0021] 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;

[0022] 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;

[0023] 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

[0024] 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.

[0025] In a fourth aspect, a measurement feedback device is provided, which is applied to a second communication device, including:

[0026] A second sending module, configured to send a reference signal to the first communication device;

[0027] 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;

[0028] 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;

[0029] 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

[0030] 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.

[0031] In a fifth aspect, a communication device is provided, which is a first communication device, comprising 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.

[0032] In a sixth aspect, a communication device is provided, the communication device being a first communication device, comprising a processor and a communication interface, wherein the processor is used to detect a reference signal sent by a second communication device; based on the detection result of the reference signal, determining a target area; the communication interface is used to send first information to the second communication device, the first information being used to indicate the target area;

[0033] 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;

[0034] 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

[0035] 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.

[0036] 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 a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the third aspect are implemented.

[0037] In an eighth aspect, a communication device is provided, where the communication device is a second communication device, including a processor and a communication interface, wherein the communication interface is used 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 used to indicate a target area;

[0038] 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;

[0039] 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

[0040] 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.

[0041] In a 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.

[0042] 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.

[0043] In the eleventh aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method described in the first aspect or the third aspect.

[0044] In the twelfth aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a storage medium and is executed by at least one processor to implement the steps of the method described in the first aspect or the third aspect.

[0045] 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, wherein the first information is used to indicate the target area; thereby, in the case of a near-field area, the switching of some antenna areas can be achieved, thereby achieving the purpose of network energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is a block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0047] Figure 2 It is a schematic diagram of a partial antenna area being closed;

[0048] Figure 3 This is one of the flow charts of the measurement feedback method of an embodiment of the present application;

[0049] Figure 4 is a schematic diagram indicating the position of a subarray;

[0050] Figure 5 This is the second flow chart of the measurement feedback method of the embodiment of the present application;

[0051] Figure 6 It is one of the module schematic diagrams of the measurement feedback device of an embodiment of the present application;

[0052] Figure 7 is a schematic diagram of the structure of a terminal in an embodiment of the present application;

[0053] Figure 8 is a schematic diagram of the structure of a network side device in an embodiment of the present application;

[0054] Fig. 9 This is the second module schematic diagram of the measurement feedback device of the embodiment of the present application;

[0055] Fig.10 It is a schematic diagram of the structure of the communication device of an embodiment of the present application. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0057] The terms "first", "second", etc. of the present 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 one type, and the number of objects is not limited, for example, the first object can be one or more. In addition, "or" in the present application represents at least one of the connected objects. For example, "A or B" covers three schemes, namely, Scheme 1: including A but not including B; Scheme 2: including B but not including A; Scheme 3: including both A and B. The character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0058] The term "indication" in this application can be 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, operations to be performed, or request results in the sent indication; an indirect indication can be understood as the receiver determining the corresponding information according to the indication sent by the sender, or making a judgment and determining the operation to be performed or the request result according to the judgment result.

[0059] 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 above-mentioned systems and radio technologies as well as other systems and radio technologies. The following description describes a new radio (NR) system for example purposes, and NR terms are used in most of the following descriptions, but these technologies can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems.

[0060] Figure 1A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (Ultra-mobile Personal Computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (Augmented Reality, AR), a virtual reality (Virtual Reality, VR) device, a robot, a wearable device (Wearable Device), an aircraft (flight vehicle), a vehicle-mounted device (Vehicle User Equipment, VUE), a ship-mounted device, a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), a game console, a personal computer (Personal Computer, PC), a teller machine or a self-service machine and 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 referred to as 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 (Wireless Local Area Network, WLAN) access point (Access Point, AP) or a wireless fidelity (Wireless Fidelity, WiFi) node, etc.Among them, the base station may be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a Relay Base Station (RBS), a Serving Base Station (SBS), a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a Home Node B (HNB), a Home Evolved Node B, a 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 terms. It should be noted that in the embodiments 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.

[0061] The following is a description of the technologies related to the embodiments of the present application.

[0062] 1. Near field area

[0063] In the 5G New Radio (NR) system, the user equipment (UE) is considered to be always in the far field area of ​​the base station. At this time, the signal propagation between the base station and the UE can be approximately modeled using a plane wave model. In the plane wave model, the propagation path between each antenna of the base station and the UE is the same, so the path loss and phase are the same. Based on the plane wave model, the beam angle of the base station can be controlled by controlling the phase difference between each antenna of the base station.

[0064] In the near field region, the propagation paths between each antenna of the base station and the UE can no longer be considered the same, and the plane wave model cannot be used to model the signal propagation from the base station to the UE. Instead, a spherical wave model is needed to model it. There are many differences between near-field communication and far-field communication: the first is the nonlinear variation of the phase of the received signal across the array; under far-field conditions, the phase of the array steering vector is approximately linearly scaled for different units, making mathematical analysis easy to handle. However, this property does not hold in the near field. The second is that as the array aperture increases, the amplitude / path loss variation of the entire array needs to be considered. This is because the distance between the user and the center of the array may be very different from the distance between the user and the edge of the array. The third is that in the near field, the tilt angle of the incident wave changes greatly from the center to the edge of the array, which causes the effective projected aperture of different antennas on the array to change. Another change faced by users in the near field region is channel non-stationarity, that is, due to the large array size, different antenna units in the array domain experience different propagation environments, and the channel exhibits spatial non-stationary characteristics. 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.

[0065] 2. Network Energy Saving

[0066] Traditional base stations mainly use on-site power off, time-controlled switches, and cell blocking to save energy, but these methods are relatively extensive and cannot take into account user perception. Entering the 5G era, 5G base stations use 64T64R large-scale array antennas and support larger bandwidths, which leads to higher energy consumption than 4G base stations. Secondly, the 5G frequency band is high and the coverage range of a single station is small. To achieve the coverage effect of the 4G network, the deployment scale of 5G base stations will be 2 to 3 times that of 4G base stations. The equipment consumes more power, the number of sites is more, and the power consumption will inevitably be greater. The excessive power consumption of 5G has become a pain point in current network operations. It is imperative to study the energy saving of 5G base station technology.

[0067] 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: Large-scale multiple-input multiple-output (MIMO) consumes more energy due to the large number of antennas and corresponding 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, such as Figure 2 As shown, the TxRUs corresponding to some antenna units can be turned off to serve a small number of users, for example, Figure 2The antenna units in the middle dotted box are turned off. After some TxRUs are turned off, the coverage of the beam will be weakened and the beam width will increase.

[0068] As the array size increases, the power of the signal transmitted by the user in the near field may be mainly received by a part of the array due to the change in the amplitude and incident wave inclination angle of each antenna array. Therefore, this feature can be used to reduce the computational overhead of signal detection and estimation of the terminal, thereby reducing latency and energy consumption.

[0069] However, in the current protocol, the entire array serves the end users together. Even in the discussion of network energy-saving scenarios, all users are served by the activated panels, and no distinction is made between which sub-arrays serve which users. The reduction in service panels will lead to a weakening of the beam coverage and an increase in the beam width. In addition, only when the throughput is low will we consider shutting down some panels to achieve network energy saving. Under normal throughput conditions, we will not consider shutting down some antenna sub-arrays that do not participate in transmission.

[0070] The measurement feedback method, apparatus, and communication device provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings through some embodiments and their application scenarios.

[0071] like Figure 3 As shown, the embodiment of the present application provides a measurement feedback method, including:

[0072] Step 301: The first communication device detects a reference signal sent by the second communication device;

[0073] Step 302: the first communication device determines a target area based on the detection result of the reference signal;

[0074] 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;

[0075] Optionally, 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.

[0076] It should be noted that the power mentioned in the embodiments of the present application refers to the reference signal received power (RSRP). The signal quality can be the reference signal received quality (RSRQ), the signal to interference plus noise ratio (SINR), the signal to noise ratio (SNR), the signal to interference ratio (SIR), etc.

[0077] Optionally, the embodiment of the present application is applicable to one of the following situations:

[0078] Case 1: the first communication device is a terminal, and the second communication device is a network side device;

[0079] 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;

[0080] 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.

[0081] 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.

[0082] Optionally, the first 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; 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 collection of subarrays where these signal energies are concentrated is called the visible area of ​​the terminal.

[0083] Case 2: the first communication device is a network side device, and the second communication device is a terminal;

[0084] 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.

[0085] This situation refers to that the network side device measures the uplink reference signal sent by the terminal, obtains the measurement result, and then determines which antenna areas of the network side can provide services for the terminal based on the measurement result.

[0086] Optionally, the second area includes an antenna area of ​​the first communication device corresponding to the reference signal whose detection result meets the target condition

[0087] 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 for the terminal.

[0088] 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 subarrays; each subarray occupies a part of the antenna area.

[0089] It should also be noted that the above target conditions include at least one of the following:

[0090] A11, the ratio of the power value to the total received power is greater than or equal to the power detection threshold;

[0091] For example, if the ratio of the RSRP value of the reference signal of a certain subarray to the total received power is greater than or equal to the power detection threshold, then the subarray is a subarray that meets the condition. Or, for example, 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 are subarrays that meet the condition.

[0092] A12, signal quality is greater than or equal to the quality detection threshold;

[0093] 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.

[0094] A13, path loss is less than or equal to the path loss threshold;

[0095] 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.

[0096] A14, channel rank is greater than or equal to the channel rank threshold;

[0097] For example, if the channel rank of a 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.

[0098] A15, the eigenvalue of the channel matrix is ​​greater than or equal to the eigenvalue threshold;

[0099] 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.

[0100] It should be noted here that the target conditions used in the above-mentioned case 1 and case 2 may be the same or different, and the specific threshold values ​​may be the same or different. For example, case 1 uses A11 as the target condition, and case 2 uses A15 as the target condition; for another example, case 1 and case 2 both use A13 as the target condition, the path loss threshold value used in case 1 is the first value, and the path loss threshold value used in case 2 is the second value, and the first value is not equal to the second value.

[0101] Optionally, in an implementation manner, the specific implementation of determining, by the first communication device based on the detection result of the reference signal, the target area includes:

[0102] If the reference signal whose detection result satisfies the target condition includes multiple target subarrays, the first communication device determines a target area among the multiple target subarrays according to the maximum number N of service subarrays.

[0103] It should be noted here that if there are multiple target subarrays selected based on the target condition, if there is no maximum service subarray number limit or the number of target subarrays selected based on the target condition is less than or equal to the maximum service subarray number, the first communication device can notify the second communication device of all these target subarrays; if the number of target subarrays selected based on the target condition is greater than the maximum service subarray number, it is necessary to select some subarrays from the multiple target subarrays; optionally, in one implementation, the specific implementation of determining the target area in the multiple target subarrays includes at least one of the following:

[0104] B11. Randomly select N target subarrays from the multiple target subarrays, and use areas corresponding to the N target subarrays as target areas.

[0105] B12, sorting the detection results of the reference signals corresponding to the multiple target subarrays in descending order, selecting the top N target subarrays, and taking the areas corresponding to the N target subarrays as the target area;

[0106] This situation can be understood as selecting the N target subarrays with the best detection results.

[0107] It should also be noted here 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.

[0108] The specific applications of the embodiments of the present application are described in detail below in the above-mentioned different situations.

[0109] 1. The first communication device is a terminal, and the second communication device is a network side device

[0110] Optionally, in one implementation, the method further includes:

[0111] The first communication device acquires first configuration information;

[0112] Optionally, the first configuration information may be configured by the second communication device or agreed upon in a protocol.

[0113] Specifically, the first configuration information includes at least one of the following:

[0114] C11, mapping relationship between identification information of different subarrays and downlink reference signal resource information;

[0115] Optionally, in an implementation manner, the downlink reference signal resource information includes at least one of the following:

[0116] C111, time domain resources;

[0117] C112, frequency domain resources;

[0118] C113, airspace resources;

[0119] For example, the spatial resource may be indicated by a beam.

[0120] For example, for a network-side large-scale antenna array consisting of 8 sub-arrays, the mapping relationship is shown in Table 1:

[0121] Table 1 Mapping relationship between subarray sequence number and downlink RS resource information

[0122] Subarray number Resource Information Subarray #1 {Time domain resources, frequency domain resources, spatial domain resources} candidate set 1 Subarray #2 {Time domain resources, frequency domain resources, spatial domain resources} candidate set 2 Subarray #3 {Time domain resources, frequency domain resources, spatial domain resources} candidate set 3 Subarray #4 {Time domain resources, frequency domain resources, spatial domain resources} candidate set 4 Subarray #5 {Time domain resources, frequency domain resources, spatial domain resources} candidate set 5 Subarray #6 {Time domain resources, frequency domain resources, spatial domain resources} candidate set 6 Subarray #7 {Time domain resources, frequency domain resources, spatial domain resources} candidate set 7 Subarray #8 {Time domain resources, frequency domain resources, spatial domain resources} candidate set 8

[0123] It should be noted that each candidate set composed of {time domain resources, frequency domain resources, spatial domain resources} in Table 1 may include one or more different combinations of downlink reference signal resource information, that is, each subarray may include multiple configuration modes of downlink reference signal resource information; further, the network side device may configure a combination of downlink reference signal resource information 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.

[0124] C12, a resource set, wherein the resource set includes: a mapping relationship between a subarray and downlink reference signal resource information;

[0125] 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 of 8 resource sets is shown in Table 2:

[0126] Table 2 Mapping relationship between resource set number and subarray downlink RS resource information

[0127] Resource set number Resource Information Resource Set #1 {time domain resources, frequency domain resources, spatial domain resources, subarray index} set 1 Resource Set #2 {time domain resources, frequency domain resources, spatial domain resources, subarray index} set 2 Resource Set #3 {time domain resources, frequency domain resources, spatial domain resources, subarray index} set 3 Resource Set #4 {time domain resources, frequency domain resources, spatial domain resources, subarray index} set 4 Resource Set #5 {time domain resources, frequency domain resources, spatial domain resources, subarray index} set 5 Resource Set #6 {time domain resource, frequency domain resource, beam, subarray index} set 6 Resource Set #7 {time domain resources, frequency domain resources, spatial domain resources, subarray index} set 7 Resource Set #8 {time domain resources, frequency domain resources, spatial domain resources, subarray index} set 8

[0128] 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; further, 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, etc.; further optionally, different resource sets may include the same time domain resources, frequency domain resources and / or spatial domain resources.

[0129] Optionally, in an implementation manner, the first information includes at least one of the following:

[0130] C21, identification information of subarrays in the first area, each of the subarrays occupying a portion of the antenna area;

[0131] Optionally, the identification information may be a number or index of a subarray.

[0132] C22, service status indication information of all subarrays of the second communication device;

[0133] It should be noted that the service status of a subarray indicates whether a subarray participates in serving the terminal. In this case, it can be regarded as indicating the service status of each subarray separately by means of a bitmap; for example, it can be represented by a binary character; for example, 0 indicates no service, 1 indicates service; or vice versa, 0 indicates service, 1 indicates no service.

[0134] C23, characteristic information of the first region, where the characteristic information is used to indicate a region shape of the first region;

[0135] 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, a 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.

[0136] For example, when the terminal identifies the first area as a rectangular area, combined with the subarray configuration information, the identification information (eg, subarray index) of the subarrays at the four corners may be fed back in a preconfigured format; for example, Figure 4 The feedback can be mode1-[1,3,9,11], where mode1 represents a rectangular area and [1,3,9,11] represents the feedback format;

[0137] For example, when the terminal identifies the first area as a circular area, combined with the subarray configuration information, the preconfigured format can be used to feedback the identification information (eg, subarray index) and radius of the center subarray; for example, Figure 4 mode2-[6,r] can be fed back, where mode2 represents the circular area and r represents the radius of the first area;

[0138] For example, when the terminal recognizes that the first area can be split into multiple preconfigured area shapes, the area range corresponding to each split area shape can be fed back at the same time; or, when the terminal recognizes that the first area contains preconfigured area shapes and irregular shapes, the preconfigured area shapes can be fed back and the sub-array index corresponding to the irregular shape can be directly fed back.

[0139] 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.

[0140] It should be noted here that after determining the target area, the terminal can combine the characteristics of the array and the target area, and feedback the sub-array set corresponding to the target area in a preconfigured format, thereby further reducing the feedback overhead; for example, for a 3*4 rectangular area, the feedback amount of the terminal is reduced from 12 indexes to 4 indexes (corresponding to the four corners of the rectangle), thereby reducing the feedback overhead.

[0141] C24, identification information of a resource set corresponding to the reference signal associated with the first region;

[0142] It should be noted that, since the resource set corresponds to the sub-array, when the terminal reports the identification information of the resource set to the network side device, the network side device can determine which sub-arrays specifically provide services based on the identification information.

[0143] Optionally, in one implementation, the method further includes:

[0144] The first communication device receives second configuration information sent by the second communication device;

[0145] The second configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0146] Optionally, the antenna subarray physical topology information includes at least one of the following:

[0147] C301, formation information of a sub-array of the antenna array;

[0148] 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, a cylindrical array.

[0149] C302, sub-array topology of antenna array;

[0150] 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.

[0151] C303, horizontal dimensions of antenna array;

[0152] C304, vertical dimensions of the antenna array;

[0153] C305, subarray horizontal size;

[0154] C306, subarray vertical size;

[0155] It should be noted that the units of the horizontal dimension and the vertical dimension may be length units such as centimeters, meters, decimeters, and millimeters.

[0156] C307, antenna unit topology of subarray;

[0157] It should be noted that the antenna unit topology structure of the subarray can be understood as the number of horizontal antenna units and the number of vertical antenna units contained in the subarray.

[0158] C308, horizontal and vertical spacing of antenna elements within the subarray;

[0159] C309, horizontal and vertical spacing of antenna elements between subarrays;

[0160] C310, number of antenna units;

[0161] The number of antenna units refers to the total number of antenna units included in the antenna array.

[0162] 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.

[0163] Optionally, in one implementation, the method further includes:

[0164] The first communication device acquires the position coordinates of the target parameter and the reference point position;

[0165] The target parameter includes one of the following: a subarray, and a subarray corresponding to a downlink reference signal.

[0166] 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.

[0167] Optionally, the reference point position may be indicated by an antenna element index at a specified position such as an edge, an end, or a center.

[0168] Optionally, in one implementation, obtaining the position coordinates of the target parameter includes at least one of the following:

[0169] C31. The first communication device receives the position coordinates of the target parameter sent by the second communication device;

[0170] 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.

[0171] 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;

[0172] 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.

[0173] The second information includes at least one of the following:

[0174] C321, subarray topology of antenna array, horizontal dimensions of antenna array, vertical dimensions of antenna array;

[0175] For example, the sub-array topology structure may be the number of sub-arrays in the horizontal direction and the number of sub-arrays in the vertical direction.

[0176] C322, subarray topology, subarray horizontal size, and subarray vertical size of the antenna array;

[0177] 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.

[0178] It should be noted that if Figure 4 As shown, Figure 4 Where X represents the horizontal size of the antenna array, Y represents the vertical size of the antenna array, X0 represents the horizontal size of the sub-array, and Y0 represents the vertical size of the sub-array.

[0179] Optionally, in one implementation, the method further includes:

[0180] The first communication device sends the detection result within the target area to the second communication device.

[0181] It should be noted that the detection result and the first information can be sent in the same message or in different messages.

[0182] Optionally, the subarray on the second communication device side may decide whether to turn 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.

[0183] It should also be noted here that, in one case, the second communication device sends a downlink reference signal to the first communication device through each subarray in an orthogonal manner; that is, when each subarray of the second communication device sends a downlink reference signal at the same time, different downlink reference signals are orthogonal to each other, that is, the second communication device configures mutually orthogonal resource information candidate sets or resource sets for different subarrays, thereby improving downlink measurement efficiency.

[0184] In another case, the second communication device sequentially sends downlink reference signals to the first communication device through each subarray in the form of time division (TDM); that is, when each subarray of the second communication device sends downlink reference signals in the form of time division, different subarrays can reuse the same reference signal on different time domain resources, and the downlink reference signals of the same subarray are mutually orthogonal, that is, the second communication device configures resource information candidate sets or resource sets for different subarrays, which may include the same frequency domain resources and / or spatial domain resources; in this way, the orthogonal reference signal resources of each subarray can be less, thereby saving reference signal resources.

[0185] Correspondingly, the first communication 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.

[0186] 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.

[0187] In summary, in this case, after determining the target 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 subarray within the target area; and receives a downlink signal on the downlink time domain resources, downlink frequency domain resources and / or downlink spatial domain resources associated with the subarray within the target area.

[0188] 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.

[0189] Optionally, in one implementation, the method further includes:

[0190] 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.

[0191] The fourth information includes at least one of the following:

[0192] C41, perceptual measurement;

[0193] Optionally, the perceptual measurement quantity can be divided into the following four categories:

[0194] C411. The first-level measurement quantity (received signal / original channel information) includes at least one of the following: complex result of received signal / channel response, amplitude / phase, I-channel / Q-channel and operation results thereof (operations include addition, subtraction, multiplication and division, matrix addition, subtraction and multiplication, matrix transposition, trigonometric relationship operation, square root operation and power operation, as well as threshold detection results, maximum / minimum value extraction results, etc. of the above operation results; operations also include fast Fourier transform (Fast Fourier Transform, FFT) / inverse fast Fourier transform (Inverse Fast Fourier Transform, IFFT), discrete Fourier transform (Discrete Fourier Transform, DFT) / inverse discrete Fourier transform (Inverse Discrete Fourier Transform, IDFT), 2D-FFT, 3D-FFT, matched filtering, autocorrelation operation, wavelet transform and digital filtering, as well as threshold detection results, maximum / minimum value extraction results, etc. of the above operation results);

[0195] C412. Second-level measurement quantity (basic measurement quantity), including at least one of the following: time delay, Doppler, angle, intensity, and their multi-dimensional combination representation;

[0196] C413, third-level measurement quantity (basic attributes / state), including at least one of the following: distance, speed, direction, spatial position, acceleration;

[0197] C414, fourth-level measurement quantity (advanced attributes / states), including at least one of the following: target presence, trajectory, movement, expression, vital signs, quantity, imaging results, weather, air quality, shape, material, and composition.

[0198] Optionally, the above-mentioned perception measurement amount further includes corresponding label information, and the label information includes at least one of the following:

[0199] C4101, perception signal identification information;

[0200] C4102, perception measurement configuration identification information;

[0201] C4103, perception service information (eg perception service ID);

[0202] C4104, data subscription ID;

[0203] C4105, measurement purposes (communication, perception, synaesthesia);

[0204] C4106, time information;

[0205] C4107, sensing node information (eg UE ID, node location, device orientation);

[0206] C4108, sensing link information (eg sensing link sequence number, transmitting and receiving node identification);

[0207] 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);

[0208] C4110, measurement indicator information (egSNR, perceived SNR).

[0209] C42, a perception result, which is a result obtained by further calculating the perception measurement amount, such as a perception target position, a perception target motion trajectory, etc.;

[0210] C43, perception performance evaluation index;

[0211] Optionally, the perceptual performance evaluation index may be calculated based on the perceptual measurement quantity, including at least one of the following:

[0212] C4301, perception SNR, that 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;

[0213] C4302, perception SINR, that 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;

[0214] C4303. Statistical mean, standard deviation or variance of multiple measurements of the same perceptual measurement;

[0215] C4304, the deviation between the predicted value and the actual measurement value of the perception measurement quantity / perception result, and the statistical mean, standard deviation or variance of the deviation;

[0216] C4305, Ambiguity Function related evaluation indicators, including Normalized Sidelobe Level (NSL), that 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 can also include the number of normalized ambiguity function sidelobes / total power / total energy with peak values ​​higher than a given threshold, the main lobe width of the ambiguity function (3dB width), etc.

[0217] C4306, Cramér-Rao Lower Bound (CRLB), is the lowest variance that can be achieved by all unbiased estimators. It is mathematically equal to the inverse of Fisher information. This evaluation index is related to the perceived SNR.

[0218] C4307, Capacity-Distortion Tradeoff, quantitatively gives the maximum achievable rate of reliable transmission of the synaesthesia integrated system under given distortion constraints;

[0219] C4308, equivalent mean square error (Equivalent-MSE), converts the spectrum efficiency of communication into equivalent radar mean square error, and is calculated by combining the perception Cramer-Rao lower bound;

[0220] C4309, radar estimation rate (Estimation-Communication Rate), taking the sensing channel as a non-cooperative communication channel, the mutual information between the sensing system and the target is the estimation rate;

[0221] C4310, Welch Bound;

[0222] C4311. Perceptual reproducibility evaluation indicators (such as the sum of the Euclidean distances between the two sequence samples, or the regularized path distance in dynamic time warping (DTW), or other indicators that can reflect the similarity of 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.);

[0223] C4312: any at least two of the above-mentioned indicators such as perceived SNR, perceived SINR, Cramer-Rao lower bound CRLB, etc., obtained by performing at least one operation of addition, subtraction, multiplication, and division.

[0224] 2. The first communication device is a network side device, and the second communication device is a terminal

[0225] 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.

[0226] Optionally, the terminal may send an uplink reference signal on a specified time-frequency resource according to the configuration of the network-side device;

[0227] Accordingly, the network side device needs to explicitly notify the terminal of the time-frequency resources for sending the uplink reference signal, or the time-frequency resource position of the uplink reference signal is associated with the downlink reference signal on the network side;

[0228] Among them, the downlink reference signal may include SSB, CSI-RS and other signals;

[0229] 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.

[0230] 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.

[0231] Accordingly, the subarray of the network side device can decide whether to turn on or off according to the detection result. If no user needs to be served, it only needs to be activated and detected for uplink reference signals periodically, and can be turned off at other times.

[0232] Optionally, in an implementation manner, the first information includes at least one of the following:

[0233] D11, identification information of subarrays in the second area, each of the subarrays occupying a portion of the antenna area;

[0234] D12, service status indication information of all subarrays of the first communication device;

[0235] It should be noted that the service status of a subarray indicates whether a subarray participates in serving the terminal. In this case, it can be regarded as indicating the service status of each subarray separately by means of a bitmap; for example, it can be represented by a binary character; for example, 0 indicates no service, 1 indicates service; or vice versa, 0 indicates service, 1 indicates no service.

[0236] D13, characteristic information of the second area, where the characteristic information is used to indicate the area shape of the second area;

[0237] 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, circles, rectangles, etc.) or non-standard shapes (for example, irregular shapes); for example, non-standard shapes may be represented by identification information of the sub-array.

[0238] D14, identification information of a resource set corresponding to the reference signal associated with the second area;

[0239] It should be noted that, since the resource set corresponds to the sub-array, when the network side device sends the identification information of the resource set to the terminal, the terminal can determine which sub-arrays specifically provide services based on the identification information.

[0240] 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;

[0241] It should be noted that, since the reference signal is associated with the 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.

[0242] Optionally, in one implementation, the method further includes:

[0243] The first communication device sends third configuration information to the second communication device;

[0244] The third configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0245] Optionally, the antenna subarray physical topology information in this case may include at least one item of C301 - C310 mentioned above.

[0246] Optionally, in one implementation, the method further includes:

[0247] 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;

[0248] The target parameter includes one of the following: a subarray, a subarray corresponding to a downlink reference signal;

[0249] The third information includes at least one of the following:

[0250] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

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

[0252] 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.

[0253] 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, so as to facilitate the terminal to send and receive signals.

[0254] 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 subarray 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 subarray within the second area.

[0255] It should be noted that the embodiments of the present application can achieve the following beneficial effects:

[0256] For 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 in the target area, and process and demodulate these signals. It does not need to detect the signals of all subarrays, thereby reducing the complexity of signal processing and calculation on the terminal side, and reducing the time and energy consumption of signal detection.

[0257] For the network side, after determining the target area of ​​each terminal, the network side only needs to keep the sub-array that serves the terminal, and can dynamically shut down the sub-array that does not serve any terminal, so as to better realize energy saving on the network side. Especially in the case of uneven terminal distribution, the sub-array in idle state can be shut down, which can reduce the power consumption on the network side.

[0258] For the communication system, after the first communication device determines the target area, the target area is indicated 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.

[0259] Corresponding to the implementation on the second communication device side, such as Figure 5 As shown, the embodiment of the present application provides a measurement feedback method, including:

[0260] Step 501: The second communication device sends a reference signal to the first communication device;

[0261] 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;

[0262] 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;

[0263] 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

[0264] 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.

[0265] Optionally, 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,

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

[0267] The target condition includes at least one of the following:

[0268] The ratio of the power value to the total received power is greater than or equal to the power detection threshold;

[0269] The signal quality is greater than or equal to the quality detection threshold;

[0270] The path loss is less than or equal to the path loss threshold;

[0271] The channel rank is greater than or equal to the channel rank threshold;

[0272] The eigenvalue of the channel matrix is ​​greater than or equal to the eigenvalue threshold.

[0273] Optionally, when the second communication device is a network side device, the first information includes at least one of the following:

[0274] Identification information of subarrays within the first area, each of the subarrays occupying a portion of the antenna area;

[0275] service status indication information of all subarrays of the second communication device;

[0276] feature information of the first region, where the feature information is used to indicate a region shape of the first region;

[0277] The identification information of the resource set corresponding to the reference signal associated with the first area.

[0278] Optionally, when the second communication device is a terminal, the first information includes at least one of the following:

[0279] identification information of subarrays in the second area, each of the subarrays occupying a portion of the antenna area;

[0280] service status indication information of all subarrays of the first communication device;

[0281] feature information of the second region, the feature information being used to indicate a region shape of the second region;

[0282] identification information of a resource set corresponding to the reference signal associated with the second area;

[0283] 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.

[0284] Optionally, when the second communication device is a network side device, the method further includes:

[0285] The second communication device receives the detection result within the target area sent by the first communication device.

[0286] Optionally, when the second communication device is a network side device, the method further includes:

[0287] first configuration information sent by the second communication device to the first communication device;

[0288] The first configuration information includes at least one of the following:

[0289] A mapping relationship between identification information of different subarrays and downlink reference signal resource information;

[0290] A resource set, wherein the resource set includes: a mapping relationship between a subarray and downlink reference signal resource information.

[0291] Optionally, the downlink reference signal resource information includes at least one of the following:

[0292] Time domain resources;

[0293] Frequency domain resources;

[0294] Airspace resources.

[0295] Optionally, when the second communication device is a network side device, the method further includes:

[0296] The second communication device sends second configuration information to the first communication device;

[0297] The second configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0298] Optionally, when the second communication device is a network side device, the method further includes:

[0299] 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;

[0300] The target parameter includes one of the following: a subarray, a subarray corresponding to a downlink reference signal;

[0301] The second information includes at least one of the following:

[0302] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

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

[0304] 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.

[0305] Optionally, when the second communication device is a network side device, the sending a reference signal to the first communication device includes:

[0306] 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.

[0307] Optionally, when the second communication device is a terminal, the method further includes:

[0308] The second communication device receives third configuration information sent by the first communication device;

[0309] The third configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0310] Optionally, the antenna subarray physical topology information includes at least one of the following:

[0311] Formation information of sub-arrays of the antenna array;

[0312] sub-array topology of antenna array;

[0313] Horizontal dimensions of the antenna array;

[0314] The vertical dimensions of the antenna array;

[0315] Subarray horizontal size;

[0316] Subarray vertical size;

[0317] The antenna element topology of the subarray;

[0318] horizontal and vertical spacing of antenna elements within a subarray;

[0319] horizontal and vertical spacing of antenna elements between subarrays;

[0320] Number of antenna elements.

[0321] Optionally, when the second communication device is a terminal, the method further includes:

[0322] 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;

[0323] The target parameter includes one of the following: a subarray, a subarray corresponding to a downlink reference signal;

[0324] The third information includes at least one of the following:

[0325] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

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

[0327] 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.

[0328] It should be noted that all descriptions about 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, which will not be repeated here.

[0329] The measurement feedback method provided in the embodiment of the present application may be performed 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 performing the measurement feedback method as an example.

[0330] like Figure 6 As shown, the measurement feedback device 600 of the embodiment of the present application is applied to a first communication device, including:

[0331] The detection module 601 is used to detect a reference signal sent by a second communication device;

[0332] A determination module 602 is used to determine a target area based on the detection result of the reference signal;

[0333] A first sending module 603, configured to send first information to the second communication device, where the first information is used to indicate the target area;

[0334] 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;

[0335] 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

[0336] 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.

[0337] Optionally, 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,

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

[0339] The target condition includes at least one of the following:

[0340] The ratio of the power value to the total received power is greater than or equal to the power detection threshold;

[0341] The signal quality is greater than or equal to the quality detection threshold;

[0342] The path loss is less than or equal to the path loss threshold;

[0343] The channel rank is greater than or equal to the channel rank threshold;

[0344] The eigenvalue of the channel matrix is ​​greater than or equal to the eigenvalue threshold.

[0345] Optionally, the determining module 602 is used to:

[0346] 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 service subarrays.

[0347] Optionally, when the first communication device is a terminal, the first information includes at least one of the following:

[0348] Identification information of subarrays within the first area, each of the subarrays occupying a portion of the antenna area;

[0349] service status indication information of all subarrays of the second communication device;

[0350] feature information of the first region, where the feature information is used to indicate a region shape of the first region;

[0351] The identification information of the resource set corresponding to the reference signal associated with the first area.

[0352] Optionally, when the first communication device is a network side device, the first information includes at least one of the following:

[0353] identification information of subarrays in the second area, each of the subarrays occupying a portion of the antenna area;

[0354] service status indication information of all subarrays of the first communication device;

[0355] feature information of the second region, the feature information being used to indicate a region shape of the second region;

[0356] identification information of a resource set corresponding to the reference signal associated with the second area;

[0357] 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.

[0358] Optionally, when the first communication device is a terminal, the apparatus further includes:

[0359] A second acquisition module, used to acquire first configuration information;

[0360] The first configuration information includes at least one of the following:

[0361] A mapping relationship between identification information of different subarrays and downlink reference signal resource information;

[0362] A resource set, wherein the resource set includes: a mapping relationship between a subarray and downlink reference signal resource information.

[0363] Optionally, the downlink reference signal resource information includes at least one of the following:

[0364] Time domain resources;

[0365] Frequency domain resources;

[0366] Airspace resources.

[0367] Optionally, when the first communication device is a terminal, the apparatus further includes:

[0368] A second receiving module, used to receive second configuration information sent by the second communication device;

[0369] The second configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0370] Optionally, when the first communication device is a terminal, the apparatus further includes:

[0371] The third acquisition module is used to obtain the position coordinates of the target parameter and the reference point position;

[0372] The target parameter includes one of the following: a subarray, and a subarray corresponding to a downlink reference signal.

[0373] Optionally, the reference point position is indicated by a second communication device.

[0374] Optionally, the method for obtaining the position coordinates of the target parameter includes at least one of the following:

[0375] Receiving the position coordinates of the target parameter sent by the second communication device;

[0376] Determine the position coordinates of the target parameter according to the second information sent by the second communication device and the reference point position;

[0377] The second information includes at least one of the following:

[0378] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

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

[0380] 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.

[0381] Optionally, when the first communication device is a terminal, the apparatus further includes:

[0382] The third sending module is used to send the detection result in the target area to the second communication device.

[0383] Optionally, when the first communication device is a network side device, the apparatus further includes:

[0384] A fourth sending module, configured to send third configuration information to the second communication device;

[0385] The third configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0386] Optionally, the antenna subarray physical topology information includes at least one of the following:

[0387] Formation information of sub-arrays of the antenna array;

[0388] sub-array topology of antenna array;

[0389] Horizontal dimensions of the antenna array;

[0390] The vertical dimensions of the antenna array;

[0391] Subarray horizontal size;

[0392] Subarray vertical size;

[0393] The antenna element topology of the subarray;

[0394] horizontal and vertical spacing of antenna elements within a subarray;

[0395] horizontal and vertical spacing of antenna elements between subarrays;

[0396] Number of antenna elements.

[0397] Optionally, when the first communication device is a network side device, the apparatus further includes:

[0398] 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;

[0399] The target parameter includes one of the following: a subarray, a subarray corresponding to a downlink reference signal;

[0400] The third information includes at least one of the following:

[0401] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

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

[0403] 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.

[0404] The measurement feedback device in the embodiment 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 a chip. The electronic device can be a terminal, or it can be other devices other than a terminal. Exemplarily, the terminal can include but is not limited to the types of terminals 11 listed above, and other devices can be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of the present application.

[0405] The 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 used to detect a reference signal sent by a second communication device;

[0406] Determining a target area based on a detection result of the reference signal;

[0407] The communication interface is used to send first information to the second communication device, where the first information is used to indicate the target area;

[0408] 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;

[0409] 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

[0410] 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.

[0411] Optionally, 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,

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

[0413] The target condition includes at least one of the following:

[0414] The ratio of the power value to the total received power is greater than or equal to the power detection threshold;

[0415] The signal quality is greater than or equal to the quality detection threshold;

[0416] The path loss is less than or equal to the path loss threshold;

[0417] The channel rank is greater than or equal to the channel rank threshold;

[0418] The eigenvalue of the channel matrix is ​​greater than or equal to the eigenvalue threshold.

[0419] Optionally, the processor is configured to:

[0420] 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 service subarrays.

[0421] Optionally, when the first communication device is a terminal, the first information includes at least one of the following:

[0422] Identification information of subarrays within the first area, each of the subarrays occupying a portion of the antenna area;

[0423] service status indication information of all subarrays of the second communication device;

[0424] feature information of the first region, where the feature information is used to indicate a region shape of the first region;

[0425] The identification information of the resource set corresponding to the reference signal associated with the first area.

[0426] Optionally, when the first communication device is a network side device, the first information includes at least one of the following:

[0427] identification information of subarrays in the second area, each of the subarrays occupying a portion of the antenna area;

[0428] service status indication information of all subarrays of the first communication device;

[0429] feature information of the second region, the feature information being used to indicate a region shape of the second region;

[0430] identification information of a resource set corresponding to the reference signal associated with the second area;

[0431] 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.

[0432] Optionally, when the first communication device is a terminal, the processor is further configured to:

[0433] Obtaining first configuration information;

[0434] The first configuration information includes at least one of the following:

[0435] A mapping relationship between identification information of different subarrays and downlink reference signal resource information;

[0436] A resource set, wherein the resource set includes: a mapping relationship between a subarray and downlink reference signal resource information.

[0437] Optionally, the downlink reference signal resource information includes at least one of the following:

[0438] Time domain resources;

[0439] Frequency domain resources;

[0440] Airspace resources.

[0441] Optionally, when the first communication device is a terminal, the communication interface is further used to:

[0442] receiving second configuration information sent by the second communication device;

[0443] The second configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0444] Optionally, when the first communication device is a terminal, the processor is further configured to:

[0445] Get the position coordinates of the target parameters and the reference point position;

[0446] The target parameter includes one of the following: a subarray, and a subarray corresponding to a downlink reference signal.

[0447] Optionally, the reference point position is indicated by a second communication device.

[0448] Optionally, the communication interface is used to:

[0449] receiving the position coordinates of the target parameter sent by the second communication device; and / or

[0450] The processor is used 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;

[0451] The second information includes at least one of the following:

[0452] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

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

[0454] 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.

[0455] Optionally, when the first communication device is a terminal, the communication interface is further used to:

[0456] The detection result within the target area is sent to the second communication device.

[0457] Optionally, when the first communication device is a network side device, the communication interface is further used to:

[0458] Sending third configuration information to the second communication device;

[0459] The third configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0460] Optionally, the antenna subarray physical topology information includes at least one of the following:

[0461] Formation information of sub-arrays of the antenna array;

[0462] sub-array topology of antenna array;

[0463] Horizontal dimensions of the antenna array;

[0464] The vertical dimensions of the antenna array;

[0465] Subarray horizontal size;

[0466] Subarray vertical size;

[0467] The antenna element topology of the subarray;

[0468] horizontal and vertical spacing of antenna elements within a subarray;

[0469] horizontal and vertical spacing of antenna elements between subarrays;

[0470] Number of antenna elements.

[0471] Optionally, when the first communication device is a network side device, the communication interface is further used to:

[0472] Sending a reference point position, a position coordinate of a target parameter and / or third information to the second communication device;

[0473] The target parameter includes one of the following: a subarray, a subarray corresponding to a downlink reference signal;

[0474] The third information includes at least one of the following:

[0475] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

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

[0477] 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.

[0478] Optionally, an embodiment of the present application further provides a communication device, which is a first communication device, including a processor, a memory, a program or instruction stored in the memory and executable on the processor, and the program or instruction, when executed by the processor, implements each process of the above-mentioned measurement feedback method embodiment, and can achieve the same technical effect, which will not be described here to avoid repetition. In the case where the first communication device is a terminal, specifically, Figure 7 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0479] 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 a processor 710.

[0480] Those skilled in the art will appreciate that the terminal 700 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 710 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Figure 7 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0481] It should be understood that in the 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 a volume control button, a switch button, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0482] 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.

[0483] 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, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), 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.

[0484] The processor 710 may include one or more processing units; optionally, the processor 710 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 710.

[0485] The processor 710 is used for:

[0486] detecting a reference signal sent by a second communication device;

[0487] Determining a target area based on a detection result of the reference signal;

[0488] The communication interface is used to send first information to the second communication device, where the first information is used to indicate the target area;

[0489] 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;

[0490] 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

[0491] 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.

[0492] Optionally, 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,

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

[0494] The target condition includes at least one of the following:

[0495] The ratio of the power value to the total received power is greater than or equal to the power detection threshold;

[0496] The signal quality is greater than or equal to the quality detection threshold;

[0497] The path loss is less than or equal to the path loss threshold;

[0498] The channel rank is greater than or equal to the channel rank threshold;

[0499] The eigenvalue of the channel matrix is ​​greater than or equal to the eigenvalue threshold.

[0500] Optionally, the radio frequency unit 701 is configured to:

[0501] 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 service subarrays.

[0502] Optionally, when the first communication device is a terminal, the first information includes at least one of the following:

[0503] Identification information of subarrays within the first area, each of the subarrays occupying a portion of the antenna area;

[0504] service status indication information of all subarrays of the second communication device;

[0505] feature information of the first region, where the feature information is used to indicate a region shape of the first region;

[0506] The identification information of the resource set corresponding to the reference signal associated with the first area.

[0507] Optionally, when the first communication device is a network side device, the first information includes at least one of the following:

[0508] identification information of subarrays in the second area, each of the subarrays occupying a portion of the antenna area;

[0509] service status indication information of all subarrays of the first communication device;

[0510] feature information of the second region, the feature information being used to indicate a region shape of the second region;

[0511] identification information of a resource set corresponding to the reference signal associated with the second area;

[0512] 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.

[0513] Optionally, when the first communication device is a terminal, the processor 710 is further configured to:

[0514] Obtaining first configuration information;

[0515] The first configuration information includes at least one of the following:

[0516] A mapping relationship between identification information of different subarrays and downlink reference signal resource information;

[0517] A resource set, wherein the resource set includes: a mapping relationship between a subarray and downlink reference signal resource information.

[0518] Optionally, the downlink reference signal resource information includes at least one of the following:

[0519] Time domain resources;

[0520] Frequency domain resources;

[0521] Airspace resources.

[0522] Optionally, when the first communication device is a terminal, the radio frequency unit 701 is further used to:

[0523] receiving second configuration information sent by the second communication device;

[0524] The second configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0525] Optionally, when the first communication device is a terminal, the processor 710 is further configured to:

[0526] Get the position coordinates of the target parameters and the reference point position;

[0527] The target parameter includes one of the following: a subarray, and a subarray corresponding to a downlink reference signal.

[0528] Optionally, the reference point position is indicated by a second communication device.

[0529] Optionally, the radio frequency unit 701 is further configured to:

[0530] receiving the position coordinates of the target parameter sent by the second communication device; and / or

[0531] The processor 710 is used 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;

[0532] The second information includes at least one of the following:

[0533] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

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

[0535] 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.

[0536] Optionally, when the first communication device is a terminal, the radio frequency unit 701 is further used to:

[0537] The detection result within the target area is sent to the second communication device.

[0538] Optionally, when the first communication device is a network side device, the radio frequency unit 701 is further used to:

[0539] Sending third configuration information to the second communication device;

[0540] The third configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0541] Optionally, the antenna subarray physical topology information includes at least one of the following:

[0542] Formation information of sub-arrays of the antenna array;

[0543] sub-array topology of antenna array;

[0544] Horizontal dimensions of the antenna array;

[0545] The vertical dimensions of the antenna array;

[0546] Subarray horizontal size;

[0547] Subarray vertical size;

[0548] The antenna element topology of the subarray;

[0549] horizontal and vertical spacing of antenna elements within a subarray;

[0550] horizontal and vertical spacing of antenna elements between subarrays;

[0551] Number of antenna elements.

[0552] Optionally, when the first communication device is a network side device, the radio frequency unit 701 is further used to:

[0553] Sending a reference point position, a position coordinate of a target parameter and / or third information to the second communication device;

[0554] The target parameter includes one of the following: a subarray, a subarray corresponding to a downlink reference signal;

[0555] The third information includes at least one of the following:

[0556] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

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

[0558] 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.

[0559] Optionally, when the first communication device is a network side device, Figure 8As shown, 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. The antenna 801 is connected to the radio frequency device 802. In the uplink direction, the radio frequency device 802 receives information through the antenna 801 and sends the received information to the baseband device 803 for processing. In the downlink direction, the baseband device 803 processes the information to be sent and sends it to the radio frequency device 802. The radio frequency device 802 processes the received information and sends it out through the antenna 801.

[0560] 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.

[0561] The baseband device 803 may include, for example, at least one baseband board on which a plurality of chips are arranged. Figure 8 As shown, one of the chips 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 to execute the network device operations shown in the above method embodiment.

[0562] The network side device may further include a network interface 806, which is, for example, a common public radio interface (CPRI).

[0563] Specifically, the network side device 800 of the embodiment of the present application further includes: instructions or programs stored in the memory 805 and executable on the processor 804, and the processor 804 calls the instructions or programs in the memory 805 to execute. Figure 6 The methods executed by the modules shown achieve the same technical effects, and therefore will not be described here in detail to avoid repetition.

[0564] Preferably, 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.

[0565] 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.

[0566] The computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0567] like Fig. 9 As shown, the measurement feedback device 900 of the embodiment of the present application is applied to the second communication device, including:

[0568] A second sending module 901, configured to send a reference signal to a first communication device;

[0569] A first receiving module 902 is used to receive first information fed back by the first communication device, where the first information is used to indicate a target area;

[0570] 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;

[0571] 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

[0572] 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.

[0573] Optionally, 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,

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

[0575] The target condition includes at least one of the following:

[0576] The ratio of the power value to the total received power is greater than or equal to the power detection threshold;

[0577] The signal quality is greater than or equal to the quality detection threshold;

[0578] The path loss is less than or equal to the path loss threshold;

[0579] The channel rank is greater than or equal to the channel rank threshold;

[0580] The eigenvalue of the channel matrix is ​​greater than or equal to the eigenvalue threshold.

[0581] Optionally, when the second communication device is a network side device, the first information includes at least one of the following:

[0582] Identification information of subarrays within the first area, each of the subarrays occupying a portion of the antenna area;

[0583] service status indication information of all subarrays of the second communication device;

[0584] feature information of the first region, where the feature information is used to indicate a region shape of the first region;

[0585] The identification information of the resource set corresponding to the reference signal associated with the first area.

[0586] Optionally, when the second communication device is a terminal, the first information includes at least one of the following:

[0587] identification information of subarrays in the second area, each of the subarrays occupying a portion of the antenna area;

[0588] service status indication information of all subarrays of the first communication device;

[0589] feature information of the second region, the feature information being used to indicate a region shape of the second region;

[0590] identification information of a resource set corresponding to the reference signal associated with the second area;

[0591] 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.

[0592] Optionally, when the second communication device is a network side device, the apparatus further includes:

[0593] The third receiving module is used to receive the detection result within the target area sent by the first communication device.

[0594] Optionally, when the second communication device is a network side device, the apparatus further includes:

[0595] A sixth sending module, configured to send first configuration information to the first communication device;

[0596] The first configuration information includes at least one of the following:

[0597] A mapping relationship between identification information of different subarrays and downlink reference signal resource information;

[0598] A resource set, wherein the resource set includes: a mapping relationship between a subarray and downlink reference signal resource information.

[0599] Optionally, the downlink reference signal resource information includes at least one of the following:

[0600] Time domain resources;

[0601] Frequency domain resources;

[0602] Airspace resources.

[0603] Optionally, when the second communication device is a network side device, the apparatus further includes:

[0604] A seventh sending module, configured to send second configuration information to the first communication device;

[0605] The second configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0606] Optionally, when the second communication device is a network side device, the apparatus further includes:

[0607] 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;

[0608] The target parameter includes one of the following: a subarray, a subarray corresponding to a downlink reference signal;

[0609] The second information includes at least one of the following:

[0610] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

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

[0612] 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.

[0613] Optionally, when the second communication device is a network side device, the second sending module 901 is configured to:

[0614] The reference signal is sent to the first communication device in an orthogonal manner through each subarray, or in a time division manner.

[0615] Optionally, when the second communication device is a terminal, the apparatus further includes:

[0616] A fourth receiving module, configured to receive third configuration information sent by the first communication device;

[0617] The third configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0618] Optionally, the antenna subarray physical topology information includes at least one of the following:

[0619] Formation information of sub-arrays of the antenna array;

[0620] sub-array topology of antenna array;

[0621] Horizontal dimensions of the antenna array;

[0622] The vertical dimensions of the antenna array;

[0623] Subarray horizontal size;

[0624] Subarray vertical size;

[0625] The antenna element topology of the subarray;

[0626] horizontal and vertical spacing of antenna elements within a subarray;

[0627] horizontal and vertical spacing of antenna elements between subarrays;

[0628] Number of antenna elements.

[0629] Optionally, when the second communication device is a terminal, the apparatus further includes:

[0630] a fifth receiving module, configured to receive a reference point position, a position coordinate of a target parameter and / or third information sent by the first communication device;

[0631] The target parameter includes one of the following: a subarray, a subarray corresponding to a downlink reference signal;

[0632] The third information includes at least one of the following:

[0633] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

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

[0635] 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.

[0636] 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 effect.

[0637] The measurement feedback device provided in the embodiment of the present application can achieve Figure 5 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0638] An embodiment of the present application further provides a communication device, the communication device being a second communication device, comprising a processor and a communication interface, the communication interface being configured to send a reference signal to the first communication device;

[0639] receiving first information fed back by the first communication device, where the first information is used to indicate a target area;

[0640] 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;

[0641] 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

[0642] 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.

[0643] Optionally, 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,

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

[0645] The target condition includes at least one of the following:

[0646] The ratio of the power value to the total received power is greater than or equal to the power detection threshold;

[0647] The signal quality is greater than or equal to the quality detection threshold;

[0648] The path loss is less than or equal to the path loss threshold;

[0649] The channel rank is greater than or equal to the channel rank threshold;

[0650] The eigenvalue of the channel matrix is ​​greater than or equal to the eigenvalue threshold.

[0651] Optionally, when the second communication device is a network side device, the first information includes at least one of the following:

[0652] Identification information of subarrays within the first area, each of the subarrays occupying a portion of the antenna area;

[0653] service status indication information of all subarrays of the second communication device;

[0654] feature information of the first region, where the feature information is used to indicate a region shape of the first region;

[0655] The identification information of the resource set corresponding to the reference signal associated with the first area.

[0656] Optionally, when the second communication device is a terminal, the first information includes at least one of the following:

[0657] identification information of subarrays in the second area, each of the subarrays occupying a portion of the antenna area;

[0658] service status indication information of all subarrays of the first communication device;

[0659] feature information of the second region, the feature information being used to indicate a region shape of the second region;

[0660] identification information of a resource set corresponding to the reference signal associated with the second area;

[0661] 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.

[0662] Optionally, when the second communication device is a network side device, the communication interface is further used to:

[0663] Receive the detection result within the target area sent by the first communication device.

[0664] Optionally, when the second communication device is a network side device, the communication interface is further used to:

[0665] first configuration information sent to a first communication device;

[0666] The first configuration information includes at least one of the following:

[0667] A mapping relationship between identification information of different subarrays and downlink reference signal resource information;

[0668] A resource set, wherein the resource set includes: a mapping relationship between a subarray and downlink reference signal resource information.

[0669] Optionally, the downlink reference signal resource information includes at least one of the following:

[0670] Time domain resources;

[0671] Frequency domain resources;

[0672] Airspace resources.

[0673] Optionally, when the second communication device is a network side device, the communication interface is further used to:

[0674] Sending second configuration information to the first communication device;

[0675] The second configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0676] Optionally, when the second communication device is a network side device, the communication interface is further used to:

[0677] Sending a reference point position, a position coordinate of a target parameter and / or second information to the first communication device;

[0678] The target parameter includes one of the following: a subarray, a subarray corresponding to a downlink reference signal;

[0679] The second information includes at least one of the following:

[0680] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

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

[0682] 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.

[0683] Optionally, when the second communication device is a network side device, the communication interface is used to:

[0684] The reference signal is sent to the first communication device in an orthogonal manner through each subarray, or in a time division manner.

[0685] Optionally, when the second communication device is a terminal, the communication interface is further used to:

[0686] Receiving third configuration information sent by the first communication device;

[0687] The third configuration information includes: a mapping relationship between subarrays and antenna subarray physical topology information.

[0688] Optionally, the antenna subarray physical topology information includes at least one of the following:

[0689] Formation information of sub-arrays of the antenna array;

[0690] sub-array topology of antenna array;

[0691] Horizontal dimensions of the antenna array;

[0692] The vertical dimensions of the antenna array;

[0693] Subarray horizontal size;

[0694] Subarray vertical size;

[0695] The antenna element topology of the subarray;

[0696] horizontal and vertical spacing of antenna elements within a subarray;

[0697] horizontal and vertical spacing of antenna elements between subarrays;

[0698] Number of antenna elements.

[0699] Optionally, when the second communication device is a terminal, the communication interface is further used to:

[0700] Receiving a reference point position, a position coordinate of a target parameter and / or third information sent by the first communication device;

[0701] The target parameter includes one of the following: a subarray, a subarray corresponding to a downlink reference signal;

[0702] The third information includes at least one of the following:

[0703] The sub-array topology of the antenna array, the horizontal dimensions of the antenna array, and the vertical dimensions of the antenna array;

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

[0705] 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.

[0706] Optionally, the structure of the second communication device can be found in Figure 7 or Figure 8The second communication device of the embodiment of the present application further includes: an instruction or program stored in the memory and executable on the processor, and the processor calls the instruction or program in the memory to execute Fig. 9 The methods executed by the modules shown achieve the same technical effects, and therefore will not be described here in detail to avoid repetition.

[0707] 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, each process of the above-mentioned measurement feedback method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0708] The processor is the processor in the network side device described in the above embodiment. The readable storage medium may be non-volatile or non-transient. The readable storage medium may include a computer-readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.

[0709] Optional, such as Fig.10 As shown, the embodiment of the present application further provides a communication device 1000, including a processor 1001 and a memory 1002, and 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.

[0710] 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.

[0711] 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.

[0712] The embodiments of the present application further provide a computer program / program product, which is stored in a storage medium, and 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.

[0713] An embodiment of the present application also 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.

[0714] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including 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 one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment 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 reverse 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.

[0715] Through the description of the above implementation methods, 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 hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, disk, CD, etc.), including several instructions to enable a terminal or a network-side device to execute the methods described in each embodiment of the present application.

[0716] 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 the present application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of the present application and the scope of protection of the claims, and these implementation methods are all within the protection of the present application.

Claims

1. A measurement feedback method, characterized in that: include: 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, characterized in that 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, characterized in that 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 among the multiple target subarrays according to the maximum number N of service subarrays.

4. The method according to claim 1, characterized in that: 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, characterized in that 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, characterized in that: 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, characterized in that 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, characterized in that: 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, characterized in that: 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, characterized in that The reference point position is indicated by the second communication device.

11. The method according to claim 9, characterized in that 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, characterized in that: 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 according to claim 1, 2, 3 or 5, characterized in that 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, characterized in that: 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 according to claim 1, 2, 3 or 5, characterized in that 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, characterized in that: include: 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 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.

17. The method according to claim 16, characterized in that 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, characterized in that 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, characterized in that 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 according to claim 16, 17 or 18, characterized in that 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 according to claim 16, 17 or 18, characterized in that 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, characterized in that The downlink reference signal resource information includes at least one of the following: Time domain resources; Frequency domain resources; Airspace resources.

23. The method according to claim 16, 17 or 18, characterized in that 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 according to claim 16, 17 or 18, characterized in that 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 according to claim 16, 17 or 18, characterized in that 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 according to claim 16, 17 or 19, characterized in that 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, characterized in that 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 according to claim 16, 17 or 19, characterized in that 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, characterized in that: include: 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, characterized in that: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run 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 1 to 15 are implemented.

31. A measurement feedback device, applied to a second communication device, characterized in that: include: 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, the communication device being a second communication device, characterized in that: It comprises a processor and a memory, wherein the memory stores a program or instruction that can be run 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, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, the steps of the measurement feedback method according to any one of claims 1 to 28 are implemented.

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