Communication method and related device

Abstract

A communication method and related device, in the method, a first communication device can feed back measurement results of N reference signals based on indication of first information, where the measurement results are used for indicating visibility information of the reference signals. In other words, the recipient of the measurement results of the N reference signals (e.g., the second communication device) can determine visibility information corresponding to the transmission process of the reference signals based on the feedback of the first communication device. Therefore, the feedback of the visibility information can be realized through the transmission process of the reference signal, and subsequent different communication devices can communicate through the visibility information, so that the communication efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication technology, and in particular to a communication method and related apparatus. BACKGROUND

[0002] Wireless communication can be transmission communication between two or more communication nodes without propagation through conductors or cables. The communication nodes generally include network devices and terminal devices. Traditional network devices can be devices fixed on the ground, such as ground base stations belonging to terrestrial network (TN) cells.

[0003] With the development of communication technology, network devices can not be fixed on the ground. For example, the network devices can be high-speed mobile devices belonging to non-terrestrial network (NTN) cells, including but not limited to satellite devices such as low-orbit satellites, medium-orbit satellites, and high-orbit satellites.

[0004] However, unlike ground base stations belonging to TN cells, because satellite devices belonging to NTN cells can be high-speed mobile, the stability of signal propagation of NTN cell signals is poor, which affects the communication efficiency. SUMMARY

[0005] The present application provides a communication method and related apparatus for improving communication efficiency.

[0006] The first aspect of the present application provides a communication method. The method is applied to a first communication apparatus, for example, is executed by the first communication apparatus. The first communication apparatus can be a communication device (such as a terminal device), or the first communication apparatus can be part of a communication device (such as a processor, circuit, chip, or chip system), or the first communication apparatus can also be a logic module or software that can realize all or part of the functions of the communication device. Taking the method applied to the first communication apparatus as an example, in the method, the first communication apparatus receives first information. The first information is used to indicate that the measurement results of N reference signals are fed back, and N is a positive integer. The measurement results are used to indicate the visibility information of the reference signals. The first communication apparatus transmits the measurement results of the N reference signals.

[0007] Based on the above scheme, the first communication apparatus can feed back the measurement result of the N reference signals based on the indication of the first information, wherein the measurement result is used to indicate the visibility information of the reference signals. In other words, the receiver (e.g., the second communication apparatus) of the measurement result of the N reference signals can determine the visibility information corresponding to the transmission process of the reference signals based on the feedback of the first communication apparatus. Thus, the feedback of the visibility information can be realized through the transmission process of the reference signals, and the subsequent communication between different communication apparatuses can be performed through the visibility information to improve the communication efficiency.

[0008] It should be noted that the visibility information of the reference signal can indicate the blocking condition of the transmission path of the signal transmitted between the network device and the terminal device, which can reflect the communication quality. Since the incident diffusion angle of NTN communication is relatively small, the signal blocking condition between the network device corresponding to the NTN cell and the terminal device located on the ground has a greater impact on the signal transmission quality. Therefore, the communication between different communication apparatuses can be performed through the visibility information to improve the communication efficiency, which can be realized through one or more of the following examples.

[0009] For example, the terminal device can select a network device that is not blocked (or has smaller blocking) based on the signal blocking condition, which can reduce unnecessary handover and / or reselection to improve the communication efficiency.

[0010] For another example, the terminal device or the network device can predict the occurrence time of the signal interruption based on the signal blocking condition, and prepare / perform the handover in advance to improve the communication efficiency.

[0011] For another example, the network device can reduce the range of the measured beam signal set based on the signal blocking condition, which can reduce the detection power consumption and measurement overhead to improve the communication efficiency.

[0012] For another example, the terminal device can perform communication in a reasonable position and / or posture based on the signal blocking condition, which can improve the success rate of signal transmission to improve the communication efficiency.

[0013] For another example, the terminal device can select a network device that is not blocked (or has smaller blocking) for positioning based on the signal blocking condition, which can improve the positioning accuracy and realize related communication services through higher positioning accuracy to improve the communication efficiency.

[0014] In this application, the visibility information can be replaced by other terms, such as NTN communication visibility information, blocking information, NTN communication blocking information, NTN transmission environment information, long-term link quality information, or NTN transmission path information, etc.

[0015] In a possible implementation manner of the first aspect, the visibility information of the reference signal comprises at least one of the following:

[0016] first time information of a transmission path of the reference signal being a line of sight (LOS) path;

[0017] second time information of a transmission path of the reference signal being a non-line of sight (NLOS) path;

[0018] third time information of a transmission path of the reference signal being an invisible path;

[0019] fourth time information of a transmission path of the reference signal being a visible path;

[0020] first track interval information of a transmission path of the reference signal being a LOS path;

[0021] second track interval information of a transmission path of the reference signal being a NLOS path;

[0022] third track interval information of a transmission path of the reference signal being an invisible path; or

[0023] fourth track interval information of a transmission path of the reference signal being a visible path.

[0024] Based on the above scheme, the visibility information of the reference signal fed back by the first communication device to the second communication device can include the at least one item, so as to improve the flexibility of the scheme.

[0025] Optionally, in addition to being used for indicating that the measurement results of the N reference signals are fed back, the first information can also be used for indicating that the at least one item is fed back. In other words, the first communication device can obtain the specified (or configured) visibility information based on the indication of the first information.

[0026] In a possible implementation manner of the first aspect, the first information includes indexes of the N reference signals.

[0027] Based on the above scheme, the first information received by the first communication device can include the indexes of the N reference signals, so that the first communication device explicitly needs to feed back the measurement results of the N reference signals based on the indexes.

[0028] In a possible implementation manner of the first aspect, the first information further includes physical cell indications (PCIs) and / or network device identifications corresponding to part or all of the N reference signals.

[0029] Based on the above scheme, the N reference signals can be transmitted by different cells and / or different network devices, and accordingly, there can be reference signals with the same index in the N reference signals. Therefore, the first information can further include a PCI and / or a network device identifier corresponding to the reference signal, so that the first communication device can feed back the measurement result of the specified reference signal based on the identifier.

[0030] In a possible implementation of the first aspect, the method further includes: receiving, by the first communication device, configuration information of the N reference signals; wherein the configuration information of the N reference signals includes information indicating a measurement time of measuring part or all of the N reference signals, and / or information indicating a track interval of measuring part or all of the N reference signals.

[0031] Based on the above scheme, the first communication device can perform measurement based on the configuration information of the N reference signals to obtain and feed back the measurement result corresponding to the measurement time and / or the measurement track interval specified by the configuration information, thereby saving the measurement overhead of the first communication device.

[0032] Optionally, the information of the measurement time can include one or more of time information of starting measurement, time information of ending measurement, and duration information of measurement.

[0033] Optionally, the information of the track interval can include one or more of track angle information of starting measurement, track angle information of ending measurement, and track interval information of continuous measurement.

[0034] Optionally, the first information and the configuration information of the N reference signals can be carried in the same message / signaling or different messages / signaling, which is not limited here.

[0035] In a possible implementation of the first aspect, the configuration information of the N reference signals further includes position constraint information of a terminal device measuring the N reference signals.

[0036] Based on the above scheme, the configuration information of the N reference signals received by the first communication device can further include position constraint information of a terminal device measuring the N reference signals, which can ensure that the environment remains stable during measurement of the first communication device, thereby improving the accuracy of the measurement result obtained by the first communication device.

[0037] It should be understood that the position constraint information can include a constraint (or limit) on a displacement distance, for example, the position constraint information indicates that the displacement distance of the terminal device does not exceed a given threshold. And / or, the position constraint information can include a constraint (or limit) on a displacement speed, for example, the position constraint information indicates that the moving speed of the terminal device does not exceed a given threshold.

[0038] Optionally, the position constraint information of the terminal device measuring the N reference signals can be preconfigured or configured by other information than the configuration information.

[0039] In a possible implementation of the first aspect, the configuration information of the N reference signals further includes ephemeris information of a network device corresponding to part or all of the N reference signals.

[0040] Based on the above scheme, the configuration information of the N reference signals received by the first communication device can further include ephemeris information of a network device corresponding to part or all of the N reference signals, so that the first communication device can determine the orbital position of the network device based on the ephemeris information to assist the measurement process based on the orbital interval information.

[0041] It should be understood that the ephemeris information of the network device corresponding to the reference signal can be the ephemeris information of the network device (such as a satellite base station) sending the reference signal.

[0042] Optionally, the ephemeris information can be preconfigured or configured by other information than the configuration information.

[0043] In a possible implementation of the first aspect, the N reference signals include at least M reference signals of a first priority, and M is less than or equal to N.

[0044] Based on the above scheme, different reference signals can be sent by different network devices / different cells, and correspondingly, the reference signals for visibility information measurement can have different priorities, that is, the measurement result fed back by the first communication device can include at least M reference signals of a first priority to meet the measurement feedback of reference signals of a higher priority.

[0045] Optionally, the value of M is less than or equal to L, where the value of L can be preconfigured to the first communication device, configured by the network device, or indicated by the capability information sent by the terminal device.

[0046] Optionally, the N reference signals further include one or more reference signals of a second priority, which is lower than the first priority.

[0047] In a possible implementation of the first aspect, the method further includes: the first communication device receives third information, which is used to indicate the priority of the N reference signals.

[0048] Based on the above scheme, the first communication device can determine the priority of the reference signal based on the indication of the network device.

[0049] Optionally, the first information and the third information can be carried in the same message / signaling or in different messages / signaling, which is not limited here.

[0050] Optionally, the priority of the N reference signals can be preconfigured.

[0051] The second aspect of the present application provides a communication method applied to a second communication device, for example, executed by the second communication device. The second communication device can be a communication device (such as a network device), or the second communication device can be a part of the communication device (such as a processor, circuit, chip or chip system, etc.), or the second communication device can also be a logic module or software that can realize all or part of the functions of the communication device. Taking the method applied to the second communication device as an example, in the method, the second communication device sends first information, the first information is used to indicate the feedback of the measurement result of N reference signals, N is a positive integer; the measurement result is used to indicate the visibility information of the reference signal; and the second communication device receives the measurement result of the N reference signals.

[0052] Based on the above scheme, after the second communication device sends the first information to the first communication device, the first communication device can feed back the measurement result of the N reference signals based on the indication of the first information, wherein the measurement result is used to indicate the visibility information of the reference signal. In other words, the second communication device can determine the visibility information corresponding to the transmission process of the reference signal based on the feedback of the first communication device. Therefore, the feedback of the visibility information can be realized through the transmission process of the reference signal, and the communication between different communication devices can be realized through the visibility information in the future, so as to improve the communication efficiency.

[0053] In a possible implementation manner of the second aspect, the visibility information of the reference signal includes at least one of the following:

[0054] first time information of the transmission path of the reference signal being a LOS path;

[0055] second time information of the transmission path of the reference signal being a NLOS path;

[0056] third time information of the transmission path of the reference signal being an invisible path;

[0057] fourth time information of the transmission path of the reference signal being a visible path;

[0058] first orbital interval information of the transmission path of the reference signal being a LOS path;

[0059] second orbital interval information of the transmission path of the reference signal being a NLOS path;

[0060] The third track interval information is for a non-visible path of the reference signal; or

[0061] The fourth track interval information is for a visible path of the reference signal.

[0062] Based on the above scheme, the visibility information of the reference signal fed back by the first communication device to the second communication device can include the at least one item, so as to improve the flexibility of the scheme.

[0063] In a possible implementation of the second aspect, the first information includes indexes of the N reference signals.

[0064] Based on the above scheme, the first information sent by the second communication device can include indexes of the N reference signals, so that the first communication device needs to feed back the measurement results of the N reference signals based on the indexes.

[0065] In a possible implementation of the second aspect, the first information further includes physical cell identities (PCIs) and / or network device identities corresponding to part or all of the N reference signals.

[0066] Based on the above scheme, the N reference signals can be sent by different cells and / or different network devices, and accordingly, there can be reference signals with the same index in the N reference signals. Therefore, the first information further includes the PCIs and / or network device identities corresponding to the reference signals, so that the first communication device can feed back the measurement results of the specified reference signals based on the identities.

[0067] In a possible implementation of the second aspect, the method further includes: the second communication device sends configuration information of the N reference signals; wherein the configuration information of the N reference signals includes information indicating a measurement time of part or all of the N reference signals, and / or information indicating a track interval of part or all of the N reference signals.

[0068] Based on the above scheme, the first communication device can perform measurement based on the configuration information of the N reference signals, so as to obtain and feed back the measurement results corresponding to the measurement time and / or the measurement track interval specified by the configuration information, thereby saving the measurement overhead of the first communication device.

[0069] Optionally, the information of the measurement time can include one or more of time information of starting measurement, time information of ending measurement, and duration information of measurement.

[0070] Optionally, the information of the track interval can include one or more of track angle information of starting measurement, track angle information of ending measurement, and track interval information of continuous measurement.

[0071] In a possible implementation of the second aspect, the configuration information of the N reference signals further includes position constraint information of the terminal device for measuring the N reference signals.

[0072] Based on the above scheme, the configuration information of the N reference signals sent by the second communication device can further include position constraint information of the terminal device for measuring the N reference signals, so as to ensure that the environment remains stable during the measurement of the first communication device, thereby improving the accuracy of the measurement result obtained by the first communication device.

[0073] In a possible implementation of the second aspect, the configuration information of the N reference signals further includes ephemeris information of a network device corresponding to part or all of the N reference signals.

[0074] Based on the above scheme, the configuration information of the N reference signals sent by the second communication device can further include ephemeris information of a network device corresponding to part or all of the N reference signals, so that the first communication device can determine the orbital position of the network device based on the ephemeris information, thereby assisting the measurement process based on the orbital interval information.

[0075] In a possible implementation of the second aspect, the N reference signals at least include M reference signals of a first priority, and M is less than or equal to N.

[0076] Based on the above scheme, different reference signals can be sent by different network devices / different cells, and correspondingly, the reference signals for the visibility information measurement can have different priorities, that is, the measurement result fed back by the first communication device can at least include M reference signals of a first priority, so as to meet the measurement feedback of the reference signals of a higher priority.

[0077] Optionally, the value of M is less than or equal to L, where the value of L can be preconfigured to the first communication device, configured by the network device, or indicated by the capability information sent by the terminal device.

[0078] Optionally, the N reference signals further include one or more reference signals of a second priority, which is lower than the first priority.

[0079] In a possible implementation of the second aspect, the method further includes: the second communication device sends third information, where the third information is used to indicate the priority of the N reference signals.

[0080] Based on the above scheme, the second communication device can indicate the priority of the N reference signals through the sent third information, so that the first communication device can determine the priority of the reference signals based on the indication of the network device.

[0081] The third aspect of the present application provides a communication device, which is a first communication device, comprising a transceiver and a processing unit; the transceiver is configured to receive first information, the first information being used to indicate feedback of measurement results of N reference signals, N being a positive integer; the measurement results are used to indicate visibility information of the reference signals; the processing unit is configured to determine the measurement results of the N reference signals; and the transceiver is further configured to send the measurement results of the N reference signals.

[0082] In the third aspect of the present application, the constituent modules of the communication device can also be configured to perform the steps performed in the various possible implementation manners of the first aspect and achieve the corresponding technical effects, which can be known in detail by referring to the first aspect and will not be described here.

[0083] The fourth aspect of the present application provides a communication device, which is a second communication device, comprising a transceiver and a processing unit; the processing unit is configured to determine first information; the transceiver is configured to send the first information; the first information is used to indicate feedback of measurement results of N reference signals, N being a positive integer; the measurement results are used to indicate visibility information of the reference signals; and the transceiver is further configured to receive the measurement results of the N reference signals.

[0084] In the fourth aspect of the present application, the constituent modules of the communication device can also be configured to perform the steps performed in the various possible implementation manners of the second aspect and achieve the corresponding technical effects, which can be known in detail by referring to the second aspect and will not be described here.

[0085] The fifth aspect of the present application provides a communication device, comprising at least one processor, the at least one processor being coupled with a memory; the memory is configured to store programs or instructions; and the at least one processor is configured to execute the programs or instructions to enable the device to implement the method in any one of the possible implementation manners of any one of the preceding first aspect to second aspect. Optionally, the communication device can comprise the memory.

[0086] The sixth aspect of the present application provides a communication device, comprising at least one logic circuit and an input-output interface; the logic circuit is configured to execute the method in any one of the possible implementation manners of any one of the preceding first aspect to second aspect.

[0087] The seventh aspect of the present application provides a communication system, comprising the first communication device and the second communication device.

[0088] The eighth aspect of the present application provides a computer-readable storage medium, which is configured to store one or more computer-executable instructions; when the computer-executable instructions are executed by a processor, the processor executes the method in any one of the possible implementation manners of any one of the preceding first aspect to second aspect.

[0089] The ninth aspect of the present application provides a computer program product (or computer program), when a computer program in the computer program product is executed by the processor, the processor executes the method in any possible implementation manner of any one of the first aspect to the second aspect.

[0090] The tenth aspect of the present application provides a chip or chip system, which comprises at least one processor for supporting a communication device to implement the method in any possible implementation manner of any one of the first aspect to the second aspect. For example, the chip can be a baseband chip, a modem chip, a system on chip (SoC) chip containing a modem core, a system in package (SIP) chip, or a communication module, etc.

[0091] In a possible design, the chip or chip system can further comprise a memory for storing necessary program instructions and data of the communication device. The chip system can be composed of a chip, or can contain a chip and other discrete devices. Optionally, the chip system further comprises an interface circuit, which provides program instructions and / or data for the at least one processor.

[0092] The technical effects brought by any one of the third aspect to the tenth aspect can be referred to the technical effects brought by different design manners of the first aspect to the second aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0093] Figure 1 A schematic diagram of a communication system provided in the present application;

[0094] Figures 2a to 2d Some schematic diagrams of a satellite communication process provided in the present application;

[0095] Figure 3 A schematic diagram of a satellite communication process in a 5G system provided in the present application;

[0096] Figure 4 A schematic diagram of a communication method provided in the present application;

[0097] Figure 5a And Figure 5b Some schematic diagrams of application of the communication method provided in the present application;

[0098] Figures 6 to 9 Some schematic diagrams of a communication device provided in the present application. DETAILED DESCRIPTION

[0099] First, some terms in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

[0100] (1) Terminal device: can be a wireless terminal device capable of receiving network device scheduling and instruction information, and the wireless terminal device can be a device providing voice and / or data connectivity to a user, or a handheld device with wireless connection function, or other processing devices connected to a wireless modem.

[0101] The terminal device can be various communication kits (a kit can include, for example, an antenna, a power supply template, a cable, and a Wi-Fi module, etc.) with wireless communication functions, and can also be a communication module with satellite communication functions, a satellite phone or its components, a very small aperture terminal (VSAT), etc. The terminal device can be a mobile terminal device, such as a mobile phone (or called "cellular" phone, mobile phone), a computer, and a data card, for example, a portable, pocket-sized, handheld, computer-built-in, or vehicle-mounted mobile device that exchanges voice and / or data with a wireless access network. For example, a personal communication service (PCS) phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a tablet computer (Pad), a computer with wireless transceiver function, etc. The wireless terminal device can also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station (MS), a remote station, an access point (AP), a remote terminal, an access terminal, a user terminal, a user agent, a subscriber station (SS), customer premises equipment (CPE), a terminal, user equipment (UE), a mobile terminal (MT), a drone, etc. The terminal device can also be a wearable device and a next-generation communication system, for example, a terminal device in a 6G communication system or a terminal device in a future evolved public land mobile network (PLMN), etc. Of course, the terminal device in this application can also refer to a chip, a modem, a system on a chip (SoC) mainly responsible for the relevant communication functions in the device, or a communication platform that can include a radio frequency (RF) part, etc.

[0102] (2) Network device: can be a device in a wireless network, for example, the network device can be a RAN node (or device) for accessing a terminal device to a wireless network, which can also be referred to as a base station. At present, some examples of RAN devices are: a base station, an evolved NodeB (eNodeB), a base station gNB (gNodeB) in a 5G communication system, a transmission reception point (TRP), an evolved Node B (eNB), a radio network controller (RNC), a Node B (NB), a home base station (for example, a home evolved Node B, or a home Node B (HNB)), a baseband unit (BBU), or a wireless fidelity (Wi-Fi) access point (AP), etc. In addition, in a network structure, the network device can include a centralized unit (CU) node, or a distributed unit (DU) node, or a RAN device including a CU node and a DU node.

[0103] Optionally, the RAN node can also be a macro base station, a micro base station or an indoor station, a relay node or a donor node, or a wireless controller in a cloud radio access network (CRAN) scenario. The RAN node can also be a server, a wearable device, a vehicle or a vehicle-mounted device, etc. For example, the access network device in vehicle to everything (V2X) technology can be a road side unit (RSU).

[0104] In another possible scenario, a terminal is assisted by multiple RAN nodes to implement wireless access, and different RAN nodes respectively implement part of functions of a base station. For example, a RAN node can be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and the DU can be separately arranged, or can also be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0105] In different systems, the CU (or CU-CP and CU-UP), DU or RU can also have different names, but those skilled in the art can understand their meanings. For example, in an open RAN (O-RAN or ORAN) system, the CU can also be referred to as an O-CU (open CU), the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, the CU-UP can also be referred to as an O-CU-UP, and the RU can also be referred to as an O-RU. For the convenience of description, the CU, CU-CP, CU-UP, DU and RU are taken as examples for description in this application. Any one of the CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0106] The communication between the access network device and the terminal device follows a certain protocol layer structure. The protocol layer can include a control plane protocol layer and a user plane protocol layer. The control plane protocol layer can include at least one of a radio resource control (RRC) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, a media access control (MAC) layer, or a physical (PHY) layer, etc. The user plane protocol layer can include at least one of a service data adaptation protocol (SDAP) layer, a PDCP layer, an RLC layer, a MAC layer, or a physical layer, etc.

[0107] For the correspondence between the network elements in the ORAN system and the protocol layer functions that can be implemented by the network elements, refer to Table 1 below.

[0108] Table 1

[0109] ORAN network elements Protocol layer functions of 3GPP O-CU-CP RRC+PDCP - Control Plane (PDCP-C) O-CU-UP SDAP+PDCP - User Plane (PDCP-U) O-DU RLC+MAC+PHY-high O-RU PHY-low

[0110] The network device can be other devices that provide wireless communication functions for terminal devices. Embodiments of the present application do not limit the specific technology and specific device form adopted by the network device. For the convenience of description, the embodiments of the present application do not limit.

[0111] The network device can further include a core network device, for example, including a mobility management entity (MME) in a fourth generation (4G) network, a home subscriber server (HSS), a serving gateway (S-GW), a policy and charging rules function (PCRF), a public data network gateway (P-GW), a network element such as an access and mobility management function (AMF), a user plane function (UPF), or a session management function (SMF) in a 5G network, and the like. In addition, the core network device can also include other core network devices in a 5G network and a next-generation network of the 5G network.

[0112] In the embodiments of the present application, the network device described above can also be a network node with artificial intelligence (AI) capability, which can provide AI services for terminals or other network devices. For example, the network node can be an AI node, a computing power node, an RAN node with AI capability, a core network element with AI capability, or the like on the network side (access network or core network).

[0113] In the embodiments of the present application, the device for implementing the function of the network device can be a network device or a device capable of supporting the network device to implement the function, such as a chip system, which can be installed in the network device. In the technical solutions provided in the embodiments of the present application, the device for implementing the function of the network device is taken as an example to describe the technical solutions provided in the embodiments of the present application.

[0114] (3) Configuration and pre-configuration: in the present application, configuration and pre-configuration will be used simultaneously. Configuration refers to that the network device sends some parameter configuration information or parameter values to the terminal device through a message or signaling, so that the terminal device determines the communication parameters or resource in transmission according to the values or information. Pre-configuration is similar to configuration, which can be parameter information or parameter values agreed by the network device and the terminal device in advance, or parameter information or parameter values adopted by the network device or the terminal device according to a standard protocol, or parameter information or parameter values pre-stored in the network device or the terminal device. The present application does not make any limitation.

[0115] Further, these values and parameters can be changed or updated.

[0116] (4) The terms "system" and "network" in the embodiments of the present application can be used interchangeably. "At least one" means one or more, and "multiple" means two or more. The term "and / or" describes the association relationship of associated objects, which means that there can be three relationships, for example, A and / or B can represent the cases of A alone, A and B together, and B alone, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects before and after it. "At least one of the following" or similar expressions means any combination of these items, including any combination of single item or multiple items. For example, "at least one of A, B and C" includes A, B, C, AB, AC, BC or ABC. In addition, unless otherwise specified, the ordinal numbers "first", "second", etc. mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, time sequence, priority or importance of the multiple objects.

[0117] (5) In the embodiments of the present application, "sending" and "receiving" represent the direction of signal transmission. For example, "sending information to XX" can be understood as that the destination of the information is XX, which can include direct sending through the air interface, or indirect sending through the air interface by other units or modules. "Receiving information from YY" can be understood as that the source of the information is YY, which can include direct receiving from YY through the air interface, or indirect receiving from YY through the air interface by other units or modules. "Sending" can also be understood as "output" of a chip interface, and "receiving" can also be understood as "input" of a chip interface.

[0118] In other words, sending and receiving can be between devices, such as between network devices and terminal devices, or within devices, such as between components, modules, chips, software modules or hardware modules within a device through a bus, wire or interface.

[0119] It can be understood that the information may be processed as necessary between the source and the destination of the information transmission, such as encoding and modulation, but the destination can understand the valid information from the source. Similar expressions in the present application can be understood similarly, and will not be repeated here.

[0120] (6) Geographical area. In the embodiments of the present application, the geographical area can be replaced by the area. Wherein, the area is fixed relative to the earth, or the area is understood to refer to the geographical area fixed relative to the earth.

[0121] Exemplarily, the region can have at least one of the following properties: shape, contour, size, radius, area, geographical position, etc. In addition, the "region" can also have a height property, i.e., the region can be understood as a geographical region at a given height or a height range. For example, the region can refer to a geographical region at an altitude of 0 km or within an altitude range of 0 km ± 2 km, or a geographical region at a certain average altitude, or a geographical region at a certain specific height, such as a geographical region at an altitude of 10 km or within an altitude range of 10 km ± 3 km.

[0122] Alternatively, the above region fixed relative to the earth can also be referred to as "wave position", "geographical region", etc. Of course, there can be other names, and the name of the region fixed relative to the earth is not limited in the present application.

[0123] In a possible implementation, the shapes, contours, sizes, radii, and areas of different regions can or can not be the same. The geographical positions of different regions are different. There can or can not be overlap between different regions.

[0124] In a possible implementation, the region is fixed relative to the earth, which can be understood as: the contour, size, or geographical position of the region does not change, e.g., the contour, size, or geographical position of the region does not change with time. Alternatively, the region is fixed relative to the earth, which can be understood as: the contour of the region and the points in the region can be described by a fixed coordinate system of the earth, or the coordinates of each point on the contour of the region in the fixed coordinate system of the earth are fixed and unchanged.

[0125] In a possible implementation, the shape of the region can be a regular hexagon, or other shapes such as a regular pentagon, a circle, an ellipse, etc. Alternatively, the shape of the region can also be irregular, which is not limited.

[0126] Exemplarily, the shape of the region can be defined by a protocol or defined by a network device. The shapes of the regions defined by different network devices can or can not be the same. The same network device can also define multiple region shapes. Similarly, the size, radius, and area of the region can also be defined by a protocol or defined by a network device. The sizes, radii, and areas of the regions defined by different network devices can or can not be the same. The same network device can also define multiple region sizes, multiple region radii, or multiple region areas.

[0127] In a possible implementation, the earth surface can be divided into multiple regions, and the multiple regions can be indexed (e.g., numbered). The terminal device and the network device can agree on the numbering manner of the regions (e.g., whether to start from 1 or from 0) and the correspondence between the regions and the indexes. Alternatively, a protocol can define the numbering manner of the regions and the correspondence between the regions and the indexes. Based on the index of a region, the geographical position and other information of the region can be determined.

[0128] Optionally, the multiple divided regions can completely cover the earth surface, for example, any position on the earth surface belongs to a region; or the multiple divided regions can cover part of the geographical positions on the earth, for example, the multiple regions can not cover the south and / or north poles of the earth, that is, the south and / or north poles can not exist in the regions.

[0129] Optionally, the manner of dividing the multiple regions can be defined by a protocol or can be defined by the network device. The dividing manners defined by different network devices can be the same or different. The same network device can also define multiple dividing manners.

[0130] As a first possible dividing manner, a granularity of latitude and longitude grid can be used to divide the earth surface, for example, the earth surface can be divided by latitude and longitude grid with a granularity of 1 degree. If only this discrete manner is used, the global can be divided into 360x360=129600 regions, and the terminal device and the network device can agree that the indexes of the 129600 regions are 0, 1, …, 129599, or can also be agreed as 1, 2, …, 129600.

[0131] Optionally, when the height attribute of the geographical region is introduced, multiple grids dividing the earth surface can be defined, for example, the grid with an altitude of 0 km or within a range of 0 km plus or minus 2 km can be divided by latitude and longitude grid with a granularity of 1 degree, resulting in 129600 regions. The position with an altitude of 10 km or within a range of 10 km plus or minus 3 km is further divided by latitude and longitude grid with a granularity of 1 degree, resulting in another 129600 regions. When indexing these grids, the index range of the single-layer grid needs to be extended, for example, the total index is 0, 1, …, 129599, 129600, 129601, …, 259199, where the first 129600 serial numbers represent the grid index of the altitude of 0 km, and the last 129600 serial numbers represent the grid index of the altitude of 10 km.

[0132] For example, in the case of a network device being a LEO satellite, a relatively small granularity can be used for discretization; in the case of a network device being a GEO satellite, a relatively large granularity can be used for discretization.

[0133] As a second possible division manner, the earth surface can be divided using latitude and longitude grids of multiple granularities, for example, the earth surface in a part of the earth or a part of administrative region is divided using latitude and longitude grids of 1 degree granularity, and the earth surface in another part of the earth or another part of administrative region is divided using latitude and longitude grids of 2 degree granularity.

[0134] Alternatively, after introducing the height attribute of the geographical region, the earth surface at an altitude of 0 km can be divided using latitude and longitude grids of 1 degree granularity, and the earth surface at an altitude of 10 km can be divided using latitude and longitude grids of 2 degree granularity.

[0135] As a third possible division manner, the earth surface can be divided according to administrative regions. For example, a township-level administrative region is taken as a region.

[0136] As a fourth possible division manner, for a GEO satellite, a projection of a beam of the GEO satellite on the ground can be taken as a region. Since the GEO satellite is stationary relative to the earth, the projection of the beam of the GEO satellite on the ground can be considered as fixed relative to the earth.

[0137] In actual applications, multiple division manners can be combined to divide the earth surface, for example, the earth surface in a part of the earth or a part of administrative region is divided using latitude and longitude grids of 1 degree granularity, and the earth surface in another part of the earth or another part of administrative region is divided according to administrative regions.

[0138] In a possible implementation, in the case where the earth surface is divided into multiple regions, different levels of region division can be performed on the same earth surface range. For example, for a certain earth surface range, first level of region division is performed using latitude and longitude grids of 10 degree granularity, second level of region division is performed using latitude and longitude grids of 6 degree granularity, and third level of region division is performed using latitude and longitude grids of 1 degree granularity. In this case, in the earth surface range, the number of regions of the first level is greater than the number of regions of the second level, and the number of regions of the second level is greater than the number of regions of the third level. In addition, in this scenario, the regions of each level can be numbered separately.

[0139] (7) In embodiments of the present application, "indication" can include direct indication and indirect indication, and can also include explicit indication and implicit indication. Information indicated by certain information (indication information described below) is referred to as to-be-indicated information. In specific implementation processes, there are many ways to indicate the to-be-indicated information, for example but not limited to, the to-be-indicated information can be directly indicated, such as the to-be-indicated information itself or an index of the to-be-indicated information. The to-be-indicated information can also be indirectly indicated by indicating other information, where the other information and the to-be-indicated information have an association relationship. The to-be-indicated information can also be indicated only by a part of the to-be-indicated information, and other parts of the to-be-indicated information are known or agreed in advance. For example, the indication of specific information can be achieved by means of the arrangement order of each information agreed in advance (for example, protocol predefined), thereby reducing the indication overhead to a certain extent. The present application does not limit the specific manner of indication. It can be understood that, for the sender of the indication information, the indication information can be used to indicate the to-be-indicated information, and for the receiver of the indication information, the indication information can be used to determine the to-be-indicated information.

[0140] In the present application, the same or similar parts between various embodiments can be mutually referred to, unless otherwise specified. In various embodiments of the present application, and various methods / designs / implementation manners in various embodiments, the terms and / or descriptions of different embodiments, and various methods / designs / implementation manners in various embodiments are consistent and can be mutually referred to, unless otherwise specified and logically conflicted. The technical features of different embodiments, and various methods / designs / implementation manners in various embodiments can be combined to form new embodiments, methods, or implementation manners according to their inherent logical relationship. The implementation manners of the present application described below do not constitute a limitation on the protection scope of the present application.

[0141] The present application can be applied to a long term evolution (LTE) system, a new radio (NR) system, or a new wireless vehicle to everything (NR V2X) system; it can also be applied to a system in which LTE and 5G are hybrid networks; or a device-to-device (D2D) communication system, a machine-to-machine (M2M) communication system, an Internet of Things (IoT), or a drone communication system; or a communication system that supports multiple wireless technologies such as LTE technology and NR technology; or a non-terrestrial communication system, such as a satellite communication system, a high-altitude communication platform, etc. Optionally, the communication system can also be applied to a narrowband Internet of Things (NB-IoT) system or other communication systems, wherein the communication system includes a network device and a terminal device, the network device serves as a configuration information sending entity, and the terminal device serves as a configuration information receiving entity. Specifically, in the communication system, there is an entity that sends configuration information to another entity and sends data to the other entity, or receives data sent by the other entity; another entity receives the configuration information and, based on the configuration information, sends data to the entity that sent the configuration information, or receives data sent by the entity that sent the configuration information. Among them, the present application can be applied to terminal devices in a connected state or an active state (active), and can also be applied to terminal devices in a non-connected state (inactive) or an idle state (idle).

[0142] See also Figure 1 , is a schematic diagram of the architecture of the communication system 1000 used in the embodiment of the present application. Figure 1 As shown, the communication system includes a radio access network (RAN) 100 and a core network 200. Optionally, the communication system 1000 may further include the Internet 300. The RAN 100 includes at least one RAN node (e.g. Figure 1 110a and 110b in the figure, collectively referred to as 110), may also include at least one terminal (such as Figure 1 120a-120j in the figure, collectively referred to as 120). RAN 100 may also include other RAN nodes, such as wireless relay equipment and / or wireless backhaul equipment ( Figure 1The RAN 100 and the core network 200 can be in electrical or communicative connection with each other. The terminal 120 is wirelessly connected to the RAN node 110, and the RAN node 110 is wirelessly or wired connected to the core network 200. The core network device in the core network 200 and the RAN node 110 in the RAN 100 can be independent and different physical devices, or can be the same physical device integrating the logical functions of the core network device and the logical functions of the RAN node 110. The terminals can be connected to each other and the RAN nodes can be connected to each other through wired or wireless means.

[0143] It should be noted that the technical solutions of the embodiments of the present application are applicable to a ground communication system. Alternatively, the technical solutions of the embodiments of the present application are applicable to a communication system integrating ground communication and satellite communication, which can also be referred to as a non-terrestrial network (NTN) communication system. Exemplarily, Figure 1 The RAN 100 in the ground communication system can include a ground base station, where the ground base station can include a TN cell (i.e., the signals of the TN cell can be transmitted and received by the ground base station); and Figure 1 The RAN 100 in the ground communication system can also include a non-ground base station. Taking a satellite as an example, the satellite can include an NTN cell (i.e., the signals of the NTN cell can be transmitted and received by the satellite). The ground communication system can be, for example, a long term evolution (LTE) system, a universal mobile telecommunication system (UMTS), a 5G communication system, a new radio (NR) system, or a next-generation communication system of the 5G communication system, without limitation.

[0144] The satellite communication has a wider coverage range than the traditional mobile communication system, the communication cost is independent of the transmission distance, and can overcome natural geographical obstacles such as oceans, deserts, and mountains. In order to overcome the shortcomings of the traditional communication network, the satellite communication can be an effective supplement to the traditional network. It is generally believed that the non-terrestrial network communication has different channel characteristics compared with the ground network communication, such as large transmission delay and large Doppler frequency offset. Exemplarily, the round-trip delay of GEO satellite communication is 238-270 milliseconds (ms). The round-trip delay of LEO satellite communication is 8-20 ms. According to the orbital height, the satellite communication system can be divided into three types: a geostationary earth orbit (GEO) satellite communication system, also known as a synchronous orbit satellite system; a medium earth orbit (MEO) satellite communication system; and a low earth orbit (LEO) satellite communication system.

[0145] Among them, GEO satellite is also commonly known as geostationary satellite, and its orbit height can be 35786 kilometers (km). The main advantage is that it is stationary relative to the ground and provides a large coverage area. However, the disadvantages of GEO satellite orbit satellites are also relatively prominent: such as the distance from the earth is too large, a larger diameter antenna is required; its transmission delay is larger, about 0.5 seconds, which cannot meet the demand of real-time service; at the same time, its orbit resources are relatively scarce, the launch cost is high and it cannot provide coverage for the polar regions. MEO satellite, with an orbit height of 2000-35786 km, has a relatively small number of satellites to achieve global coverage, but its transmission delay is higher than that of LEO satellite, and it is mainly used for positioning and navigation. In addition, the orbit height of 300-2000 km is called low earth orbit (LEO) satellite. LEO satellite has a lower orbit height than MEO and GEO, smaller data propagation delay, less power loss, and relatively lower launch cost. Therefore, LEO satellite communication network has received great attention in recent years.

[0146] In one possible implementation, the satellite device can be divided into transparent mode and regenerative mode according to the working mode.

[0147] The following will be described by Figure 2a 、 Figure 2b 、 Figure 2c and Figure 2d implementation, which will be described as an example.

[0148] As shown in the implementation of the transparent mode Figure 2a , the satellite and the gateway (i.e. NTN Gateway in Figure 2a ) act as a relay, i.e. the Remote Radio Unit shown in Figure 2a , and the terminal device and the gNB need to realize communication through the relay process. In other words, in the transparent mode, the satellite has the function of relay forwarding.

[0149] For example, in the implementation of the transparent mode shown in Figure 2b , when the satellite (including GEO satellite, MEO satellite, LEO satellite, etc.) works in the transparent mode, the satellite has the function of relay forwarding. The gateway has the function of the base station or part of the base station function, at this time the gateway can be regarded as the base station. Alternatively, the base station can be deployed separately from the gateway, so that the delay of the feeder link includes the delay of the satellite to the gateway and the delay of the gateway to the gNB.

[0150] Optionally, the transparent mode can be exemplified by the case where the gateway station and the gNB are together or close to each other. For the case where the gateway station is far away from the gNB, the feeder link delay can be the sum of the satellite-to-gateway station delay and the gateway station-to-gNB delay.

[0151] As shown in the implementation of the regenerative mode, Figure 2c the satellite and the gateway station (i.e., the NTN Gateway in Figure 2c ) can communicate with the terminal device as a gNB. In other words, in the regenerative mode, the satellite has the function or part of the function of a base station, and at this time the satellite can be regarded as a base station.

[0152] For example, in the implementation of the regenerative mode shown in Figure 2d , compared with the implementation shown in Figure 2b , the satellite has the function or part of the function of a base station, and at this time the satellite can be regarded as a base station (i.e., an aerial base station).

[0153] Optionally, in Figure 2b and / or Figure 2d , the satellite can be implemented in other ways, such as a drone or a high-altitude platform in the figure.

[0154] It should be noted that the base stations of the NTN and the ground network can be interconnected through a common core network. Higher timeliness assistance and interconnection can also be achieved through interfaces defined between base stations. In NR, the interface between base stations is called Xn interface, and the interface between base station and core network is called NG interface. In the fusion network, the NTN node and the ground node can realize interworking and cooperation through the foregoing interfaces.

[0155] In addition, the satellite as a network device can send ephemeris information, so that the receiver of the ephemeris information (such as a terminal device or its base station or other satellites, etc.) can determine the relevant information of the running track of the satellite based on the ephemeris information. As an example, the ephemeris information can include one or more information in Table 2 below. Alternatively, the terminal device can obtain one or more information in Table 2 through pre-configuration.

[0156] Table 2

[0157]

[0158] It should be noted that in actual applications, the last parameter in Table 2, the near-earth time t p , can be replaced by the true anomaly, which has the same effect, as shown in Table 3.

[0159] Table 3

[0160]

[0161] It should be noted that the present application can be applied to a long term evolution (LTE) system, a new radio (NR) system, or a communication system evolved after 5G (for example, 6G, 7G, etc.).

[0162] For example, a 5G satellite communication system architecture is shown in FIG. 1. The ground terminal device accesses the 5G new air interface network, the 5G base station is deployed on the satellite, and is connected to the ground core network through the wireless link. At the same time, there is a wireless link between the satellites to complete the signaling interaction and user data transmission between the base stations. Figure 3 Figure 3 The description of the devices and interfaces in FIG. 1 is as follows:

[0163] 5G core network: user access control, mobility management, session management, user security authentication, charging and other services. It is composed of multiple functional units, which can be divided into control plane and data plane functional entities. The access and mobility management unit (AMF) is responsible for user access management, security authentication, and mobility management. The user plane unit (UPF) is responsible for managing user plane data transmission, traffic statistics and other functions. The session management function (SMF) is mainly used for session management in mobile networks, such as session establishment, modification, and release.

[0164] Ground station: responsible for forwarding signaling and service data between satellite base stations and 5G core network.

[0165] 5G new air interface: wireless link between terminal and base station.

[0166] Xn interface: interface between 5G base stations and base stations, mainly used for signaling interaction such as handover.

[0167] NG interface: interface between 5G base station and 5G core network, mainly interacting with non-access stratum (NAS) signaling of core network and user service data.

[0168] ​In addition, the network device in the ground network communication system and the satellite in the NTN communication system can be regarded as a network device. The apparatus for implementing the function of the network device can be the network device, or can be an apparatus capable of supporting the network device to implement the function, such as a chip system, which can be installed in the network device. In the following description of the technical solutions provided by the embodiments of the present application, the apparatus for implementing the function of the network device is taken as an example of the satellite to describe the technical solutions provided by the embodiments of the present application. It can be understood that when the method provided by the embodiments of the present application is applied to the ground network communication system, the actions performed by the satellite can be applied to the base station or the network device to perform.

[0169] In the embodiments of the present application, the apparatus for implementing the function of the terminal device can be the terminal device, or can be an apparatus capable of supporting the terminal device to implement the function, such as a chip system, which can be installed in the terminal device. In the embodiments of the present application, the chip system can be composed of a chip, or can include the chip and other discrete devices. In the technical solutions provided by the embodiments of the present application, the apparatus for implementing the function of the terminal device is taken as an example of the terminal or the UE to describe the technical solutions provided by the embodiments of the present application.

[0170] In addition, the above-mentioned satellite can be a stationary satellite, a non-stationary satellite, an artificial satellite, a low-orbit satellite, a medium-orbit satellite, and a high-orbit satellite, etc., which are not specifically limited herein.

[0171] The above describes various scenarios of wireless communication involved in the present application. It should be understood that the above is only an exemplary description of the scenarios in which the present application can be applied, and the present application can also be applied to other application scenarios, which are not limited herein. The wireless communication process involved in the present application will be described below.

[0172] In Figure 1 / Figure 2a / Figure 2b / Figure 2c / Figure 2d / Figure 3 In the communication system shown in the above, the signal (for example, the signal carries configuration information / configuration signaling, etc.) that can be sent by the network device can configure the communication resource. The communication resource can include the communication resource of the network device, and the communication resource of the adjacent network device that can exist, so that the receiver of the signal can determine the corresponding communication resource based on the signal. For example, in the case where the receiver of the signal is a terminal device, the terminal device can obtain network service based on the communication resource.

[0173] With the development of communication technology, network equipment may not be fixed at a certain location on the ground. For example, the network equipment may be a high-speed mobile device belonging to a non-terrestrial network (NTN) cell, including but not limited to satellite equipment such as low-orbit satellites, medium-orbit satellites, and high-orbit satellites.

[0174] However, unlike the ground base stations of TN cells, the satellite equipment of NTN cells may move at high speeds, which leads to poor signal propagation stability of NTN cell signals, thereby affecting communication efficiency.

[0175] In order to solve the above problems, the present application provides a communication method and related devices, which will be described in detail below with reference to the accompanying drawings.

[0176] See also Figure 4 , is a schematic diagram of an implementation of the communication method provided in this application, and the method includes the following steps.

[0177] It should be noted that in the following, Figure 4 The method is illustrated by taking the first communication device and the second communication device as the execution subjects of the interaction diagram as an example, but the present application does not limit the execution subjects of the interaction diagram. For example, the communication device can be a communication device (such as a terminal device or a network device), or a chip, a baseband chip, a modem chip, a system on chip (SoC) chip containing a modem core, a system in package (SIP) chip, a communication module, a chip system, a processor, a logic module or software in the communication device. Among them, the first communication device can be a terminal device and the second communication device can be a network device.

[0178] S401. A second communication device sends first information, and the first communication device receives the first information accordingly. The first information is used to indicate feedback of measurement results of N reference signals, where N is a positive integer; the measurement results are used to indicate visibility information of the reference signals.

[0179] S402. The first communication device sends measurement results of N reference signals, and correspondingly, the second communication device receives the measurement results of the N reference signals.

[0180] Optionally, the second communication device can be a network device such as a ground base station, a repeater, a gateway, a satellite base station (e.g., a LEO satellite, a MEO satellite, a GEO satellite, etc.), a drone or a high-altitude platform, etc. In a case where the network device is an ORAN network element in the ORAN architecture shown in Table 1, the network device can include an O-CU, an O-DU, and an O-RU. In the step S401, the first information can be generated by the O-CU and / or the O-DU, and transmitted by the O-RU. In the step S402, the measurement results of the N reference signals can be received by the O-RU, and processed by the O-CU and / or the O-DU.

[0181] In this application, the visibility information can be replaced by other terms, such as visibility information of NTN communication, blocking information, blocking information of NTN communication, NTN transmission environment information, long-term link quality information, or NTN transmission path information, etc.

[0182] In a possible implementation, the first information received by the first communication device in the step S401 includes indexes of the N reference signals, and the N reference signals are indicated by the indexes. Thus, the first communication device is required to feed back the measurement results of the N reference signals based on the indexes.

[0183] Optionally, the first information can also indicate the N reference signals in other ways, for example, the first information can include resource indexes of the N reference signals, indexes of beams corresponding to the N reference signals, directions of transmission beams corresponding to the N reference signals, etc.

[0184] Optionally, the first information further includes physical cell indications (PCIs) and / or network device identifications corresponding to part or all of the N reference signals. The N reference signals can be transmitted by different cells and / or different network devices, and accordingly, there can be reference signals with the same index in the N reference signals. Therefore, the first information can further include the PCIs and / or the network device identifications corresponding to the reference signals, so that the first communication device can feed back the measurement results of the specified reference signals based on the identifications.

[0185] Optionally, the N reference signals can be transmitted by one or more network devices, which can include the second communication device or can be different from the second communication device, and are not limited here.

[0186] In a possible implementation, the first information received by the first communication apparatus in step S401 is used to indicate that the measurement results of the N reference signals are fed back, wherein the visibility information of the reference signal comprises at least one of the following:

[0187] first time information of a transmission path of the reference signal being a LOS path;

[0188] second time information of a transmission path of the reference signal being a NLOS path;

[0189] third time information of a transmission path of the reference signal being an invisible path;

[0190] fourth time information of a transmission path of the reference signal being a visible path;

[0191] first track interval information of a transmission path of the reference signal being a LOS path;

[0192] second track interval information of a transmission path of the reference signal being a NLOS path;

[0193] third track interval information of a transmission path of the reference signal being an invisible path; or

[0194] fourth track interval information of a transmission path of the reference signal being a visible path.

[0195] Therefore, the visibility information of the reference signal fed back by the first communication apparatus to the second communication apparatus can comprise at least one of the above, so as to improve the flexibility of the scheme.

[0196] Optionally, the visibility information of the reference signal can be understood as, in the case that the receiver of the reference signal is a terminal device located in a certain geographical area and the sender of the reference signal is a network device located in a certain spatial angle interval, the visibility information indicates the communication quality between the network device located in the spatial angle interval and the terminal device located in the geographical area.

[0197] For example, the above spatial angle interval can be configured in various ways.

[0198] For example, the spatial angular interval can be determined by an azimuth angle and a zenith angle in an east-north-up (ENU) coordinate system, which can also be referred to as a station-centered coordinate system. In an example, in the ENU coordinate system, taking the earth as an ellipsoid, a right-angle coordinate system can be constructed with the terminal device as the station center (i.e., the origin O of the coordinate system), the z-axis coinciding with the normal line of the ellipsoid (i.e., the upward direction), the y-axis coinciding with the short semi-axis of the ellipsoid (i.e., the north direction), and the x-axis coinciding with the long semi-axis of the earth ellipsoid (i.e., the east direction). Correspondingly, for a connection line between a terminal device on the ground and a satellite base station in the air, the zenith angle can be the included angle between the connection line and the z-axis, and the azimuth angle can be the included angle between the projection of the connection line on the ground and the x-axis (or the y-axis).

[0199] Optionally, in addition to the azimuth angle and the zenith angle, the spatial angular interval can also be configured by other information.

[0200] For example, the coordinate parameters of the spatial region can be configured in a geocentric coordinate system with the center of the earth as the center.

[0201] For another example, the index, identifier, etc. corresponding to the above-mentioned azimuth angle, zenith angle, and coordinate parameters can be configured.

[0202] For another example, after a certain geographical region (for example, the geographical region can be configured by the wave position, region index, region number, etc. in the foregoing term introduction) is configured, a spatial range at a certain height above the geographical region is configured as the spatial region represented by the spatial angular interval.

[0203] For example, the above-mentioned geographical region can be configured in various ways.

[0204] For example, the geographical region can be configured by a longitude interval, a latitude interval, and an altitude interval.

[0205] For another example, in the case where the geographical region is a circular region, the coordinates of the reference point configured as the center of the circle and the length value configured as the diameter or radius of the circle can be used.

[0206] For another example, in the case where the geographical region is a rectangular region, the coordinates of the four vertices of the rectangle can be configured.

[0207] For another example, the geographical region can also be a regular polygon such as a hexagon, a pentagon, an ellipse, or an irregular polygon, and the coordinates of the contour line of the regular or irregular polygon can be configured.

[0208] For another example, the geographical region can be configured by the wave position, region index, region number, etc. in the foregoing term introduction.

[0209] It should be noted that the LOS path and the NLOS path can be identified in one or more of the following ways.

[0210] Method one, signal strength.

[0211] Wherein, the communication signal transmitted by the signal sender based on a certain transmission power, the corresponding signal receiving strength received by the signal receiver after the communication signal is transmitted through the LOS path is greater than the corresponding signal receiving strength received by the signal receiver after the communication signal is transmitted through the NLOS path. In other words, the first communication device can determine the transmission path of the reference signal as the LOS path or the NLOS path based on the signal receiving strength of the received reference signal.

[0212] For example, in the case that the signal receiving strength of a certain reference signal is greater than a certain threshold, the first communication device can determine that the reference signal is transmitted through the LOS path.

[0213] For another example, in the case that the signal receiving strength of a certain reference signal is less than a certain threshold, the first communication device can determine that the reference signal is transmitted through the NLOS path.

[0214] Optionally, the above-mentioned threshold can be configured by the network device, can be pre-configured, or can be a desired value determined based on the signal receiving strength of the reference point.

[0215] Method two, signal transmission distance.

[0216] Wherein, the communication signal transmitted by the signal sender based on a certain transmission power, the transmission distance of the communication signal transmitted through the LOS path is generally less than or equal to the transmission distance of the communication signal transmitted through the NLOS path. In other words, the first communication device can determine the transmission path of the reference signal as the LOS path or the NLOS path based on the signal attenuation information of the received reference signal.

[0217] Optionally, the terminal device can determine the signal attenuation information through one or more of the following parameters, such as the signal transmission parameter configured by the network device, the ephemeris information of the satellite base station, the atmospheric transmission compensation information, and the reference point information.

[0218] Method three, signal offset information, such as timing offset rate of the signal, frequency drift rate of the signal, etc.

[0219] Wherein, the communication signal transmitted by the signal sender based on a certain transmission power, the signal drift generated by the communication signal transmitted through the LOS path is generally less than or equal to the signal drift generated by the communication signal transmitted through the NLOS path. In other words, the first communication device can determine the transmission path of the reference signal as the LOS path or the NLOS path based on the signal drift information corresponding to the received reference signal.

[0220] Optionally, the terminal device can determine the signal drift information through one or more of the following parameters: signal transmission parameters configured by the network device, ephemeris information of the satellite base station, atmospheric transmission compensation information, reference point information.

[0221] Optionally, the first information can be used to indicate the feedback of the measurement results of the N reference signals, and can also be used to indicate the feedback of the at least one of the above. In other words, the second communication device can obtain the specified (or configured) visibility information based on the indication of the first information.

[0222] Based on Figure 4 According to the scheme shown, the first communication device can feed back the measurement results of the N reference signals based on the indication of the first information, wherein the measurement results are used to indicate the visibility information of the reference signals. In other words, the receiver (e.g., the second communication device) of the measurement results of the N reference signals can determine the visibility information corresponding to the transmission process of the reference signals based on the feedback of the first communication device. Thus, the feedback of the visibility information can be realized through the transmission process of the reference signals, and the communication between different communication devices can be realized through the visibility information to improve the communication efficiency.

[0223] It should be noted that the visibility information of the reference signal can indicate the blocking condition of the transmission path of the signal between the network device and the terminal device. Since the incident diffusion angle of NTN communication is relatively small, the signal blocking condition between the network device corresponding to the NTN cell and the terminal device located on the ground has a greater impact on the signal transmission quality. Therefore, the communication between different communication devices can be realized through the visibility information to improve the communication efficiency, which can be realized through one or more of the following examples.

[0224] For example, the terminal device can select a network device that is not blocked (or has less blocking) based on the signal blocking condition, which can reduce unnecessary handover and / or reselection to improve communication efficiency.

[0225] For another example, the terminal device or the network device can predict the occurrence time of the signal interruption based on the signal blocking condition, and prepare / perform handover in advance to improve communication efficiency.

[0226] For another example, the network device can reduce the range of the measured beam signal set based on the signal blocking condition, which can reduce the detection power consumption and measurement overhead to improve the communication efficiency.

[0227] For another example, the terminal device can communicate in a reasonable position and / or posture based on the signal blocking condition, which can improve the success rate of signal transmission to improve the communication efficiency.

[0228] For example, based on the signal obstruction situation, the terminal device can select an unobstructed (or less obstructed) network device for positioning, which can improve positioning accuracy and implement related communication services through higher positioning accuracy to improve communication efficiency.

[0229] In addition, in the implementation method in which the terminal device obtains and sends satellite visibility information to the network device through the collected high-precision information (such as global navigation satellite system (GNSS) signals, images, three-dimensional maps, etc.), and the network device subsequently fits the satellite visibility information based on the satellite visibility information to determine the skyline, it depends on the terminal device's ability to process high-precision information and the transmission overhead of a large amount of data corresponding to the high-precision information.

[0230] exist Figure 4 In the illustrated method, after the second communication device receives the measurement results of N reference signals to determine the visibility information of the reference signals in step S402, the second communication device may further determine the skyline information based on the visibility information.

[0231] like Figure 5a The example shown, as Figure 4 An example of an application of the method shown. Figure 5a In the figure, concentric circles of different diameters represent a geographical area on the ground. The moving direction of a satellite base station is shown by the arrow in the figure. The moving direction of the satellite base station can be Figure 4 The process shown determines the visibility information of the satellite base station relative to the ground area, including the rectangular area represented as "visible (LOS)", the rectangular area represented as "NLOS", and the rectangular area represented as "invisible". Accordingly, through multiple executions of the reference signal feedback process between different satellite base stations and ground terminal devices, the following information can be determined: Figure 5a The skyline shown (i.e. Figure 5a In this way, compared with the implementation method in which the terminal device determines the skyline by collecting high-precision information, the processing complexity of the communication device can be reduced, and the data transmission overhead can be greatly reduced.

[0232] In one possible implementation, Figure 4The method further includes: the first communication device receiving configuration information of the N reference signals; wherein the configuration information of the N reference signals includes information indicating a measurement time for measuring part or all of the N reference signals, and / or information indicating a track interval for measuring part or all of the N reference signals; specifically, the first communication device can perform measurement based on the configuration information of the N reference signals to obtain and feed back measurement results corresponding to the measurement time and / or the measurement track interval specified by the configuration information, thereby saving measurement overhead of the first communication device.

[0233] Optionally, the information of the measurement time can include one or more of time information of starting measurement, time information of ending measurement, and duration information of measurement.

[0234] Optionally, the information of the track interval can include one or more of track angle information of starting measurement, track angle information of ending measurement, and track interval information of continuous measurement.

[0235] As Figure 5b An implementation example of the information of the track interval is shown in the example, wherein θ0 can represent a certain starting measurement track angle, and θ1 can represent a certain ending measurement track angle. In this way, the first communication device can receive reference signals in the track interval corresponding to the two track angles.

[0236] Optionally, the first information and the configuration information of the N reference signals can be carried in the same message / signaling or different messages / signaling, which is not limited here.

[0237] As an implementation example, the following will be described taking the case that the configuration information of the reference signals includes the information of the measurement time as an example.

[0238] When the configuration information of the N reference signals includes information indicating a measurement time for measuring part or all of the N reference signals, the configuration information can include the parameters shown in Table 4 or Table 5.

[0239] Table 4

[0240] Index Start time - end time of measurement PCI#1 SSB#0 t1-t2 PCI#2 SSB#0 t3-t4 PCI#3 SSB#0 t5-t6 … …

[0241] In Table 4, the first column of information can include an index of the reference signal (optionally, also including a PCI corresponding to the reference signal), and the second column of information includes indication of starting time and ending time of measurement.

[0242] Table 5

[0243] Index Start time - end time of measurement SAT#1 SSB#0 t1-t2 SAT#2 SSB#0 t3-t4 SAT#3 SSB#0 t5-t6 … …

[0244] In Table 5, the first column of information can include the index of the reference signal (optionally, also including the identification of the network device (i.e., satellite)), and the second column of information includes the indication of the start time and the end time of the measurement.

[0245] Exemplarily, taking the implementation process shown in Table 4 as an example, the measurement result sent by the first communication apparatus in step S402 can include the feedback of the visible time period, the non-visible time period, and the NLOS time period, as shown in the following Table 6.

[0246] Table 6

[0247] Index Visible time period Non-visible time period NLOS time period PCI#1 SSB#0 t1a-t2a t1b-t2b t1c-t2c PCI#2 SSB#0 t3a-t4a t3b-t4b t3c-t3c PCI#3 SSB#0 t5a-t6a t5b-t6b t5c-t6c … …

[0248] It should be understood that, as can be known from Table 4 and Table 6, the six time instants t1a, t2a, t1b, t2b, t1c, and t2c are located in the time period indicated by t1-t2. Similarly, the six time instants t3a, t4a, t3b, t4b, t3c, and t3c are located in the time period indicated by t3-t4, and the six time instants t5a, t6a, t5b, t6b, t5c, and t6c are located in the time period indicated by t5-t6.

[0249] As another implementation example, the following will be described taking the case that the configuration information of the reference signal includes the information of the orbital interval as an example.

[0250] In the case where the configuration information of the N reference signals includes the information indicating the measurement time of part or all of the N reference signals, the configuration information can include the parameters shown in Table 4 or Table 5.

[0251] Table 7

[0252] Index Start angle - end angle of measurement PCI#1 SSB#0 theta1-theta2 PCI#2 SSB#0 Theta3-theta4 PCI#3 SSB#0 Theta5-theta6 … …

[0253] In Table 7, the first column of information can include the index of the reference signal (optionally, also including the PCI corresponding to the reference signal), and the second column of information includes the indication of the start angle and the end angle of the measurement.

[0254] Table 8

[0255] Index Start angle - end angle of measurement SAT#1 SSB#0 theta1-theta2 SAT#2 SSB#0 Theta3-theta4 SAT3 SSB#0 Theta5-theta6 … …

[0256] In Table 8, the first column of information can include the index of the reference signal (optionally, also including the identification of the network device (i.e., satellite)), and the second column of information includes the indication of the start angle and the end angle of the measurement.

[0257] Exemplarily, taking the implementation process shown in Table 7 as an example, the measurement result sent by the first communication apparatus in step S402 can include the feedback of the visible time period, the non-visible time period, and the NLOS time period, as shown in the following Table 9.

[0258] Table 9

[0259] Index Visible time period Non-visible time period NLOS time period PCI#1 SSB#0 t1a-t2a t1b-t2b t1c-t2c PCI#2 SSB#0 t3a-t4a t3b-t4b t3c-t3c PCI#3 SSB#0 t5a-t6a t5b-t6b t5c-t6c … … … …

[0260] For example, in the implementation process shown in Table 7, the measurement result sent by the first communication device in step S402 can include feedback of the visible orbital angle interval, the invisible orbital angle interval, and the NLOS orbital angle interval, as shown in Table 10 below.

[0261] Table 10

[0262] Beam identity Visible orbital angle interval Non-visible orbital angle interval NLOS orbital angle interval PCI#1 SSB#0 theta1a-theta2a theta1b-theta2b theta1c-theta2c PCI#2 SSB#0 theta3a-theta4a theta3b-theta4b theta3c-theta4c PCI#3 SSB#0 theta5a-theta6a theta5b-theta6b theta5c-theta6c … … … …

[0263] It should be understood that, according to Table 7 and Table 10, the six angle values of theta1a, theta2a, theta1b, theta2b, theta1c, and theta2c are located in the angle interval indicated by theta1-theta2. Similarly, the six angle values of theta3a, theta4a, theta3b, theta4b, theta3c, and theta4c are located in the angle interval indicated by theta3-theta4, and the six angle values of theta5a, theta6a, theta5b, theta6b, theta5c, and theta6c are located in the angle interval indicated by theta5-theta6.

[0264] In a possible implementation, the configuration information of the N reference signals further includes position constraint information of a terminal device that measures the N reference signals. In this way, it can be ensured that the environment remains stable during the measurement process of the first communication device, so as to improve the accuracy of the measurement result obtained by the first communication device.

[0265] It should be understood that the position constraint information can include a constraint (or limit) on the displacement distance, for example, the position constraint information indicates that the displacement distance of the terminal device does not exceed a given threshold. And / or, the position constraint information can include a constraint (or limit) on the displacement speed, for example, the position constraint information indicates that the movement speed of the terminal device does not exceed a given threshold.

[0266] Optionally, the position constraint information of the terminal device that measures the N reference signals can be preconfigured, or configured through other information in addition to the above-mentioned configuration information.

[0267] In a possible implementation, the configuration information of the N reference signals further includes ephemeris information of a network device corresponding to part or all of the N reference signals. In this way, the first communication device can determine the orbital position of the network device based on the ephemeris information, so as to assist the measurement process based on the orbital interval information.

[0268] It should be understood that the ephemeris information of the network device corresponding to the reference signal can be the ephemeris information of the network device (for example, the satellite base station) sending the reference signal.

[0269] Optionally, the ephemeris information can be preconfigured or configured through other information in addition to the configuration information.

[0270] In a possible implementation, the N reference signals include at least M reference signals of a first priority, and M is less than or equal to N. Specifically, different reference signals can be sent by different network devices / different cells, and correspondingly, the reference signals for the visibility information measurement can have different priorities, that is, the measurement result fed back by the first communication device can include at least M reference signals of the first priority to meet the measurement feedback of the reference signal of a higher priority.

[0271] Optionally, the value of M is less than or equal to L, where the value of L can be preconfigured to the first communication device, configured by the network device, or indicated by the capability information sent by the terminal device.

[0272] Optionally, the N reference signals further include one or more reference signals of a second priority, which is lower than the first priority.

[0273] In a possible implementation, the method further includes: the first communication device receives third information, which is used to indicate the priority of the N reference signals. Thus, the first communication device can determine the priority of the reference signal based on the indication of the network device.

[0274] Optionally, the first information and the third information can be carried in the same message / signaling or different messages / signaling, which is not limited here.

[0275] Optionally, the priority of the N reference signals can be preconfigured.

[0276] As an example, taking the scenario shown in Table 4 as an example, different reference signals can be grouped as shown in Table 11.

[0277] Table 11

[0278]

[0279] In Table 11, compared with Table 4, a first column of information and a fourth column of information can be added, the first column of information is used to indicate grouping information corresponding to different reference signals, and the fourth column of information is used to indicate a priority of each group. In this way, in the satellite communication process, the system can pay more attention to the visibility of the orbit where the satellite is located, and therefore, it is expected that the terminal device prioritizes the measurement and feedback of the satellite beam visibility in the current orbit. For example, the terminal device and the network device can agree that the terminal device must measure the group with high priority, and optionally measure the beam with low priority.

[0280] Referring to Figure 6 The embodiment of the present application provides a communication device 600, which can realize the functions of the first communication device or the second communication device in the above-mentioned method embodiments, and thus can also realize the beneficial effects possessed by the above-mentioned method embodiments. In the embodiment of the present application, the communication device 600 can be a first communication device (or a second communication device), or an integrated circuit or element inside the first communication device (or the second communication device), such as a chip.

[0281] It should be noted that the transceiver unit 602 can include a sending unit and a receiving unit, which are respectively used for performing sending and receiving.

[0282] In a possible implementation, when the device 600 is used to execute the method performed by the first communication device in the above-mentioned embodiments, the device 600 includes a processing unit 601 and a transceiver unit 602; the transceiver unit 602 is configured to receive first information, the first information being used to indicate feedback of measurement results of N reference signals, N being a positive integer; the measurement result being used to indicate visibility information of the reference signal; the processing unit 601 is configured to determine the measurement results of the N reference signals; and the transceiver unit 602 is further configured to send the measurement results of the N reference signals.

[0283] In a possible implementation, when the device 600 is used to execute the method performed by the second communication device in the above-mentioned embodiments, the device 600 includes a processing unit 601 and a transceiver unit 602; the processing unit 601 is configured to determine first information, and the transceiver unit 602 is configured to send the first information, the first information being used to indicate feedback of measurement results of N reference signals, N being a positive integer; the measurement result being used to indicate visibility information of the reference signal; and the transceiver unit 602 is further configured to receive the measurement results of the N reference signals.

[0284] It should be noted that the information execution process and the like of the units of the above-mentioned communication device 600 can be specifically referred to the description in the above-mentioned method embodiments of the present application, and will not be described here.

[0285] Referring to Figure 7Another schematic structural diagram of the communication apparatus 700 is provided in the present application, and the communication apparatus 700 includes a logic circuit 701 and an input / output interface 702. The communication apparatus 700 can be a chip or an integrated circuit.

[0286] wherein, Figure 6 The transceiver unit 602 shown in the figure can be a communication interface, which can be Figure 7 The input / output interface 702 in the communication apparatus 700 can include an input interface and an output interface. Alternatively, the communication interface can also be a transceiver circuit, which can include an input interface circuit and an output interface circuit.

[0287] Optionally, the input / output interface 702 is configured to receive first information, the first information being used to indicate feedback of measurement results of N reference signals, N being a positive integer; the measurement results being used to indicate visibility information of the reference signals; the logic circuit 701 is configured to determine the measurement results of the N reference signals; and the input / output interface 702 is further configured to send the measurement results of the N reference signals.

[0288] Optionally, the logic circuit 701 is configured to determine first information, and the input / output interface 702 is configured to send the first information, the first information being used to indicate feedback of measurement results of N reference signals, N being a positive integer; the measurement results being used to indicate visibility information of the reference signals; and the input / output interface 702 is further configured to receive the measurement results of the N reference signals.

[0289] The logic circuit 701 and the input / output interface 702 can also perform other steps performed by the first communication apparatus or the second communication apparatus in any embodiment and achieve corresponding beneficial effects, which will not be described here.

[0290] In a possible implementation manner, Figure 6 The processing unit 601 shown in the figure can be Figure 7 The logic circuit 701 in the communication apparatus 700.

[0291] Optionally, the logic circuit 701 can be a processing apparatus, and the functions of the processing apparatus can be partially or entirely implemented through software.

[0292] Optionally, the processing apparatus can include a memory and a processor, wherein the memory is configured to store a computer program, and the processor is configured to read and execute the computer program stored in the memory to perform corresponding processing and / or steps in any one of the method embodiments.

[0293] Optionally, the processing device can only include a processor. The memory for storing the computer program is located outside the processing device, and the processor is connected with the memory through the circuit / wire to read and execute the computer program stored in the memory. Among them, the memory and the processor can be integrated together, or they can also be physically independent of each other.

[0294] Optionally, the processing device can be one or more chips, or one or more integrated circuits. For example, the processing device can be one or more field-programmable gate arrays (FPGA), application specific integrated circuits (ASIC), system on chips (SoC), central processing units (CPU), network processors (NP), digital signal processors (DSP), microcontroller units (MCU), programmable logic devices (PLD) or other integrated chips, or any combination of the above chips or processors, etc.

[0295] Please refer to Figure 8 The communication device 800 involved in the above embodiments provided for the embodiments of the present application, which can be specifically the communication device in the above embodiments as a terminal device, Figure 8 The communication device of the illustrated example is implemented by a terminal device (or a component in the terminal device).

[0296] Among them, a possible logical structure diagram of the communication device 800 can include but not limited to at least one processor 801 and a communication port 802.

[0297] Among them, Figure 6 The transceiver unit 602 shown can be a communication interface, which can be Figure 8 The communication port 802 in the communication port 802 can include an input interface and an output interface. Alternatively, the communication port 802 can also be a transceiver circuit, which can include an input interface circuit and an output interface circuit.

[0298] Further optionally, the device can also include at least one of a memory 803, a bus 804, and in the embodiments of the present application, the at least one processor 801 is used to control and process the actions of the communication device 800.

[0299] Furthermore, the processor 801 may be a central processing unit (CPU), a general-purpose processor (GPPC), a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic device (PLD), a transistor logic device (TLD), a hardware component, or any combination thereof. It may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like. Those skilled in the art will clearly understand that, for ease and brevity of description, the specific operating processes of the systems, devices, and units described above may refer to the corresponding processes in the aforementioned method embodiments and will not be further described herein.

[0300] It should be noted that Figure 8 The communication device 800 shown can be specifically used to implement the steps implemented by the terminal device in the aforementioned method embodiment and achieve the corresponding technical effects of the terminal device. Figure 8 The specific implementation of the communication device shown can refer to the description in the aforementioned method embodiment, and will not be repeated here.

[0301] See also Figure 9 , is a structural diagram of a communication device 900 involved in the above embodiment provided in an embodiment of the present application. The communication device 900 may specifically be a communication device as a network device in the above embodiment. Figure 9 The communication device of the example shown is implemented by a network device (or a component in a network device), wherein the structure of the communication device can refer to Figure 9 The structure shown.

[0302] The communication device 900 includes at least one processor 911 and at least one network interface 914. Further optionally, the communication device also includes at least one memory 912, at least one transceiver 913 and one or more antennas 915. The processor 911, the memory 912, the transceiver 913 and the network interface 914 are connected, for example, via a bus. In an embodiment of the present application, the connection may include various interfaces, transmission lines or buses, etc., which are not limited in this embodiment. The antenna 915 is connected to the transceiver 913. The network interface 914 is used to enable the communication device to communicate with other communication devices through a communication link. For example, the network interface 914 may include a network interface between the communication device and the core network device, such as an S1 interface, and the network interface may include a network interface between the communication device and other communication devices (such as other network devices or core network devices), such as an X2 or Xn interface.

[0303] in, Figure 6 The transceiver unit 602 shown may be a communication interface, which may be Figure 9The network interface 914 in the communication device can include an input interface and an output interface. Alternatively, the network interface 914 can be a transceiver circuit, which can include an input interface circuit and an output interface circuit.

[0304] The processor 911 is mainly used for processing communication protocols and communication data, controlling the whole communication device, executing software programs, processing data of the software programs, for example, for supporting the communication device to perform actions described in the embodiments. The communication device can include a baseband processor and a central processor. The baseband processor is mainly used for processing communication protocols and communication data, and the central processor is mainly used for controlling the whole terminal device, executing software programs, and processing data of the software programs. Figure 9 The processor 911 in the communication device can integrate the functions of the baseband processor and the central processor. Those skilled in the art can understand that the baseband processor and the central processor can also be independent processors interconnected by a bus or the like. Those skilled in the art can understand that the terminal device can include multiple baseband processors to adapt to different network modes, and the terminal device can include multiple central processors to enhance its processing capability. The various components of the terminal device can be connected by various buses. The baseband processor can also be referred to as a baseband processing circuit or a baseband processing chip. The central processor can also be referred to as a central processing circuit or a central processing chip. The function of processing communication protocols and communication data can be built into the processor, or stored in the memory in the form of a software program, and the processor executes the software program to realize the baseband processing function.

[0305] The memory is mainly used for storing software programs and data. The memory 912 can exist independently and be connected to the processor 911. Alternatively, the memory 912 can be integrated with the processor 911, for example, integrated in a chip. The memory 912 can store program codes for executing the technical solutions of the embodiments of the present application, and the processor 911 controls the execution. Various computer programs executed can also be regarded as a driver of the processor 911.

[0306] Figure 9 Only one memory and one processor are shown. In actual terminal devices, multiple processors and multiple memories can exist. The memory can also be referred to as a storage medium or a storage device, etc. The memory can be a storage element on the same chip as the processor, i.e., an on-chip storage element, or an independent storage element, and the embodiments of the present application do not limit this.

[0307] The transceiver 913 can be configured to support the receiving or transmitting of radio frequency signals between the communication device and a terminal. The transceiver 913 can be connected to the antenna 915. The transceiver 913 includes a transmitter Tx and a receiver Rx. Specifically, the one or more antennas 915 can receive radio frequency signals, the receiver Rx of the transceiver 913 is configured to receive the radio frequency signals from the antenna and convert the radio frequency signals into digital baseband signals or digital intermediate frequency signals, and provide the digital baseband signals or digital intermediate frequency signals to the processor 911 for further processing, such as demodulation processing and decoding processing, by the processor 911. In addition, the transmitter Tx in the transceiver 913 is also configured to receive modulated digital baseband signals or digital intermediate frequency signals from the processor 911, and convert the modulated digital baseband signals or digital intermediate frequency signals into radio frequency signals, and transmit the radio frequency signals through the one or more antennas 915. Specifically, the receiver Rx can selectively perform one or more levels of down-mixing processing and analog-to-digital conversion processing on the radio frequency signals to obtain the digital baseband signals or digital intermediate frequency signals, and the order of the down-mixing processing and the analog-to-digital conversion processing can be adjustable. The transmitter Tx can selectively perform one or more levels of up-mixing processing and digital-to-analog conversion processing on the modulated digital baseband signals or digital intermediate frequency signals to obtain the radio frequency signals, and the order of the up-mixing processing and the digital-to-analog conversion processing can be adjustable. The digital baseband signals and the digital intermediate frequency signals can be collectively referred to as digital signals.

[0308] The transceiver 913 can also be referred to as a transceiving unit, a transceiver, a transceiving device, etc. Optionally, the devices in the transceiving unit for implementing the receiving function can be regarded as a receiving unit, and the devices in the transceiving unit for implementing the transmitting function can be regarded as a transmitting unit, that is, the transceiving unit includes the receiving unit and the transmitting unit, the receiving unit can also be referred to as a receiver, an input port, a receiving circuit, etc., and the transmitting unit can be referred to as a transmitter, a transmitter, or a transmitting circuit, etc.

[0309] It should be noted that, Figure 9 The communication device 900 shown can be specifically configured to implement the steps implemented by the network device in the foregoing method embodiments, and achieve the corresponding technical effects of the network device, Figure 9 The specific implementation modes of the communication device 900 shown can be referred to the descriptions in the foregoing method embodiments, which will not be repeated here.

[0310] The embodiments of the present application also provide a computer readable storage medium for storing one or more computer execution instructions, when the computer execution instructions are executed by a processor, the processor executes the method described in the possible implementation modes of the first communication device or the second communication device in the foregoing embodiments.

[0311] The embodiment of the present application further provides a computer program product (or computer program), when the computer program product is executed by the processor, the processor executes the method of the possible implementation manners of the first communication device or the second communication device.

[0312] The embodiment of the present application further provides a chip system, which comprises at least one processor for supporting the communication device to implement the functions involved in the possible implementation manners of the communication device. Optionally, the chip system further comprises an interface circuit, which provides program instructions and / or data for the at least one processor. In a possible design, the chip system can further comprise a memory, which is used to store necessary program instructions and data of the communication device. The chip system can be composed of a chip, or can comprise a chip and other discrete devices, and the communication device can be the first communication device or the second communication device in the method embodiments.

[0313] The embodiment of the present application further provides a communication system, which comprises the first communication device and the second communication device in any of the above-mentioned embodiments.

[0314] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented by other means. For example, the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units or components shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0315] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. According to actual needs, part or all of the units can be selected to achieve the purpose of the embodiment scheme.

[0316] In addition, each function unit in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software function unit. When the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on such an understanding, the technical solutions of the present application, essentially or in the form of a contribution, or all or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes.

Claims

1. A communication method characterized by comprising: Comprising: receiving first information, the first information being used for indicating feedback of measurement results of N reference signals, N being a positive integer; the measurement results being used for indicating visibility information of the reference signals; sending the measurement results of the N reference signals.

2. The method of claim 1, wherein, The visibility information of the reference signals comprises at least one of: first time information that a transmission path of a reference signal is a line of sight (LOS) path; second time information that a transmission path of a reference signal is a non-line of sight (NLOS) path; third time information that a transmission path of a reference signal is an invisible path; fourth time information that a transmission path of a reference signal is a visible path; first track interval information that a transmission path of a reference signal is a LOS path; second track interval information that a transmission path of a reference signal is a NLOS path; third track interval information that a transmission path of a reference signal is an invisible path; or fourth track interval information that a transmission path of a reference signal is a visible path.

3. The method according to claim 1 or 2, characterized in that, The first information comprises indices of the N reference signals.

4. The method of claim 3, wherein, The first information further comprises physical cell identities (PCIs) and / or network device identities corresponding to part or all of the N reference signals.

5. The method according to any one of claims 1 to 4, characterized in that, The method further comprises: receiving configuration information of the N reference signals; wherein the configuration information of the N reference signals comprises information indicating a measurement time of part or all of the N reference signals, and / or information indicating a track interval of part or all of the N reference signals.

6. The method of claim 5, wherein, The configuration information of the N reference signals further comprises position constraint information of a terminal device measuring the N reference signals, and / or ephemeris information of a network device corresponding to part or all of the N reference signals.

7. The method according to any one of claims 1 to 6, characterized in that, The N reference signals comprise at least M reference signals of a first priority, M being less than or equal to N.

8. The method of claim 7, wherein, The N reference signals further comprise one or more reference signals of a second priority, the second priority being lower than the first priority.

9. A communication method characterized by comprising: Comprising: sending first information, the first information being used for indicating feedback of measurement results of N reference signals, N being a positive integer; the measurement results being used for indicating visibility information of the reference signals; receiving the measurement results of the N reference signals.

10. The method of claim 9, wherein, The visibility information of the reference signals comprises at least one of: first time information that a transmission path of a reference signal is a line of sight (LOS) path; second time information that a transmission path of a reference signal is a non-line of sight (NLOS) path; third time information that a transmission path of a reference signal is an invisible path; fourth time information that a transmission path of a reference signal is a visible path; first track interval information that a transmission path of a reference signal is a LOS path; second track interval information that a transmission path of a reference signal is a NLOS path; third track interval information that a transmission path of a reference signal is an invisible path; or fourth track interval information that a transmission path of a reference signal is a visible path.

11. The method according to claim 9 or 10, characterized in that, The first information comprises indices of the N reference signals.

12. The method of claim 11, wherein, The first information further comprises physical cell identities (PCIs) and / or network device identities corresponding to part or all of the N reference signals.

13. The method according to any one of claims 9 to 12, characterized in that, The method further includes: sending configuration information of the N reference signals; wherein the configuration information of the N reference signals comprises information indicating a measurement time of measuring part or all of the N reference signals, and / or information indicating a track interval of measuring part or all of the N reference signals.

14. The method of claim 13, wherein, The configuration information of the N reference signals further comprises position constraint information of a terminal device measuring the N reference signals, and / or ephemeris information of a network device corresponding to part or all of the N reference signals.

15. The method according to any one of claims 9 to 14, characterized in that, The N reference signals at least comprise M reference signals of a first priority, and M is less than or equal to N.

16. The method of claim 15, wherein, The N reference signals further comprise one or more reference signals of a second priority, and the second priority is lower than the first priority.

17. A communications device, characterized by A module for performing the method of any one of claims 1 to 16.

18. A communications device, characterized by At least one processor for performing the method of any one of claims 1 to 16.

19. The communication apparatus according to claim 18, wherein The communication device is a chip or a chip system.

20. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program or instructions, which, when executed by a communication device, implement the method of any one of claims 1 to 16.

21. A computer program product, characterised in that, A computer program or instructions, which, when executed by a computer, implement the method of any one of claims 1 to 16.

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