A cell measurement method, electronic device and storage medium

Abstract

The present application discloses a cell measurement method, comprising: a terminal device receives first indication information, the first indication information is used to indicate whether the terminal device performs cell measurement corresponding to a frequency point according to satellite coverage information, the frequency point including a frequency point associated with the satellite. The present application also discloses another cell measurement method, electronic device and storage medium.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a cell measurement method, electronic equipment and storage medium. Background Art

[0002] In the related art, when a terminal device performs neighboring cell measurement corresponding to a frequency point, how to further achieve energy saving of the terminal device is a goal that has been pursued. Summary of the invention

[0003] In order to solve the above technical problems, the embodiments of the present application provide a cell measurement method, an electronic device and a storage medium, which achieve energy saving of the terminal device when the terminal device performs neighboring cell measurement corresponding to the frequency point.

[0004] In a first aspect, an embodiment of the present application provides a cell measurement method, comprising: a terminal device receives first indication information, the first indication information being used to indicate whether the terminal device performs cell measurement corresponding to a frequency point according to coverage information of a satellite, the frequency point including a frequency point associated with the satellite.

[0005] In a second aspect, an embodiment of the present application provides a cell measurement method, including: a network device sends a first indication information, wherein the first indication information is used to indicate whether a terminal device performs a cell measurement corresponding to a frequency point according to coverage information of a satellite, and the frequency point includes a frequency point associated with the satellite.

[0006] In a third aspect, an embodiment of the present application provides a terminal device, comprising: a receiving unit, configured to receive first indication information, wherein the first indication information is used to indicate whether the terminal device performs cell measurement corresponding to a frequency point according to coverage information of a satellite, and the frequency point includes a frequency point associated with the satellite.

[0007] In a fourth aspect, an embodiment of the present application provides a network device, comprising: a sending unit, configured to send a first indication information, wherein the first indication information is used to indicate whether a terminal device performs a cell measurement corresponding to a frequency point according to coverage information of a satellite, and the frequency point includes a frequency point associated with the satellite.

[0008] In a fifth aspect, an embodiment of the present application provides a terminal device, comprising a processor and a memory for storing a computer program that can be run on the processor, wherein the processor is used to execute the steps of the cell measurement method performed by the above-mentioned terminal device when running the computer program.

[0009] In a sixth aspect, an embodiment of the present application provides a network device, comprising a processor and a memory for storing a computer program that can be run on the processor, wherein the processor is used to execute the steps of the cell measurement method performed by the above-mentioned network device when running the computer program.

[0010] In a seventh aspect, an embodiment of the present application provides a chip, comprising: a processor, configured to call and run a computer program from a memory, so that a terminal device equipped with the chip executes the cell measurement method executed by the above-mentioned terminal device.

[0011] In an eighth aspect, an embodiment of the present application provides a chip, comprising: a processor, configured to call and run a computer program from a memory, so that a network device equipped with the chip executes the cell measurement method executed by the above-mentioned network device.

[0012] In a ninth aspect, an embodiment of the present application provides a storage medium storing an executable program, which, when executed by a processor, implements the cell measurement method performed by the above-mentioned terminal device.

[0013] In a tenth aspect, an embodiment of the present application provides a storage medium storing an executable program, which, when executed by a processor, implements the cell measurement method performed by the above-mentioned network device.

[0014] In an eleventh aspect, an embodiment of the present application provides a computer program product, including computer program instructions, which enable a computer to execute the cell measurement method executed by the above-mentioned terminal device.

[0015] In a twelfth aspect, an embodiment of the present application provides a computer program product, including computer program instructions, which enable a computer to execute the cell measurement method performed by the above-mentioned network device.

[0016] In a thirteenth aspect, an embodiment of the present application provides a computer program, which enables a computer to execute the cell measurement method performed by the above-mentioned terminal device.

[0017] In a fourteenth aspect, an embodiment of the present application provides a computer program, which enables a computer to execute the cell measurement method performed by the above-mentioned network terminal device.

[0018] The cell measurement method, electronic device and storage medium provided in the embodiment of the present application include: a network device sends a first indication information to a terminal device; the first indication information is used to indicate whether the terminal device performs cell measurement corresponding to a frequency point according to the coverage information of the satellite, and the frequency point includes a frequency point associated with the satellite. In this way, the terminal device can determine whether to perform cell measurement corresponding to the frequency point according to the coverage information of the satellite according to the indication of the network device; so that the terminal device starts the cell measurement corresponding to the frequency point only when it is close to the satellite coverage, thereby realizing energy saving of the terminal device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the communication system according to the embodiment of the present application;

[0020] Figure 2 A schematic diagram of an optional processing flow of a cell measurement method provided in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of another optional processing flow of the cell measurement method provided in an embodiment of the present application;

[0022] Figure 4 This is an optional schematic diagram of a terminal device in an embodiment of the present application performing measurement or stopping measurement on a neighboring cell corresponding to a frequency point;

[0023] Figure 5 This is a schematic diagram of an optional component structure of a terminal device according to an embodiment of the present application;

[0024] Figure 6 This is a schematic diagram of an optional composition structure of a network device according to an embodiment of the present application;

[0025] Figure 7 Schematic diagram of the hardware structure of the electronic device according to the embodiment of the present application. DETAILED DESCRIPTION

[0026] In order to enable a more detailed understanding of the features and technical contents of the embodiments of the present application, the implementation of the embodiments of the present application is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present application.

[0027] At present, with people's pursuit of speed, latency, high-speed mobility, energy efficiency and the diversity and complexity of services in future life, the 3GPP international standard organization has begun to develop 5G. The main application scenarios of 5G are: Enhanced Mobile Broadband (eMBB), Ultra Reliable Low Latency Communications (URLLC), and Massive Machine Type Communication (mMTC).

[0028] eMBB still aims at users to obtain multimedia content, services and data, and its demand is growing rapidly. On the other hand, since eMBB may be deployed in different scenarios, such as indoors, in urban areas, and in rural areas, its capabilities and requirements vary greatly, so it cannot be generalized and must be analyzed in detail in combination with specific deployment scenarios. Typical applications of URLLC include: industrial automation, power automation, remote medical operations (surgery), traffic safety, etc. Typical features of mMTC include: high connection density, small data volume, latency-insensitive services, low cost and long service life of modules, etc.

[0029] The New Radio (NR) system can also be deployed independently. In order to reduce air interface signaling, quickly restore wireless connections and quickly restore data services, a new Radio Resource Control (RRC) state is defined, namely the deactivated (RRC-Inactive) state. Among them, in the idle (RRC-Idle) state, the mobility is based on the cell reselection of the terminal device, the paging process is initiated by the Core Network (CN), and the paging area is configured by the CN. There is no terminal device context or RRC connection on the network device side. In the RRC-Inactive state, the mobility is based on the cell reselection of the terminal device, there is a connection between CN and NR, the terminal device context exists on a certain network device, the paging process is triggered by the RAN, and the paging area based on the RAN is managed by the RAN. The network device can know the location of the terminal device based on the RAN paging area level.

[0030] The serving cell measurement for the terminal equipment in RRC-Idle state and RRC-Inactive state is performed continuously; the neighboring cell measurement behavior in RRC-Idle state and RRC-Inactive state is constrained by the relevant parameters in the system broadcast message.

[0031] For the start of intra-frequency measurement, when the Srxlev of the serving cell is greater than SIntraSearchP and the Squal of the serving cell is greater than SIntraSearchQ, the intra-frequency neighboring area measurement is not started, otherwise the intra-frequency neighboring area measurement is started. For inter-frequency measurement of the same priority or low priority, when the Srxlev of the serving cell is greater than SnonIntraSearchP and the Squal of the serving cell is greater than SnonIntraSearchQ, the inter-frequency measurement of the same priority or low priority is not started, otherwise the inter-frequency measurement of the same priority or low priority is started. For high-priority inter-frequency measurement, the high-priority inter-frequency measurement is always started. Among them, Srxlev is the current Srxlev measurement value of the serving cell, and SrxlevRef is the reference Srxlev value of the serving cell.

[0032] Non-Terrestrial Network (NTN) uses satellite communication to provide communication services to ground users. Compared with ground cellular network communication, satellite communication has many unique advantages. First, satellite communication is not limited by the user's geographical location. For example, general land communication cannot cover areas such as oceans, mountains, or deserts where communication equipment cannot be set up or where communication coverage is not provided due to sparse population; for satellite communication, since a satellite can cover a large area of ​​the ground and the satellite can orbit the earth, in theory every corner of the earth can be covered by satellite communication. Secondly, satellite communication has high social value. Satellite communication can be covered at a low cost in remote mountainous areas, poor and backward countries or regions, so that people in these areas can enjoy advanced voice communication and mobile Internet technology, which is conducive to narrowing the digital divide with developed areas and promoting the development of these areas. Thirdly, satellite communication has a long distance, and the increase in communication distance does not significantly increase the cost of communication; finally, satellite communication has high stability and is not restricted by natural disasters.

[0033] Communication satellites are divided into low-Earth orbit (LEO) satellites, medium-Earth orbit (MEO) satellites, geostationary Earth orbit (GEO) satellites, and high elliptical orbit (HEO) satellites according to their orbital altitudes. The following is a brief description of LEO and GEO respectively.

[0034] The orbital altitude of LEO ranges from 500km to 1500km, and the corresponding orbital period is about 1.5 hours to 2 hours. The signal propagation delay of single-hop communication between terminal devices is generally less than 20ms. The maximum satellite visibility time is 20 minutes. The signal propagation distance is short, the link loss is small, and the transmission power requirement of the terminal device is not high.

[0035] The orbital altitude of GEO is 35786km, and its rotation period around the earth is 24 hours. The signal propagation delay of single-hop communication between terminal devices is generally 250ms. In order to ensure satellite coverage and improve the system capacity of the entire satellite communication system, satellites use multiple beams to cover the ground. A satellite can form dozens or even hundreds of beams to cover the ground; a satellite beam can cover a ground area with a diameter of tens to hundreds of kilometers.

[0036] NTN cells may be deployed at frequencies different from those of terrestrial cells. If cell measurements are performed based on frequencies in the prior art, the terminal device may always measure the frequencies where the NTN cells are deployed, even if the terminal device is not covered by any NTN network at this time. In the prior art, most of the conditions for starting cell measurements at each priority frequency are related to the channel quality of the serving cell; however, since the NTN network topology may change dynamically due to the high-speed movement of low-orbit satellites, the deterioration of the channel quality of the serving cell does not necessarily mean that the terminal device has a need to measure the NTN frequency. In this scenario, if the terminal device always measures the frequency where the NTN cell is deployed, a large amount of power will be consumed by the terminal device.

[0037] The embodiment of the present application provides a cell measurement method. The cell measurement method of the embodiment of the present application can be applied to various communication systems, such as: global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, advanced long term evolution (LTE-A) system, new radio (NR) system, NR system evolution system, LTE on unlicensed spectrum (LTE-U) system, NR on unlicensed spectrum (NR-U) system, universal mobile telecommunication system (UMTS), world wide interoperability for microwave access (worldwide interoperability for microwave access, WiMAX) communication system, wireless local area networks (WLAN), wireless fidelity (WiFi), next generation communication system or other communication systems, etc.

[0038] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device to device (D2D) communication, machine to machine (M2M) communication, machine type communication (MTC), and vehicle to vehicle (V2V) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0039] The system architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. A person of ordinary skill in the art can appreciate that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0040] The network equipment involved in the embodiments of the present application may be an ordinary base station (such as NodeB or eNB or gNB), a new radio controller (new radio controller, NR controller), a centralized unit, a new wireless base station, a radio frequency remote module, a micro base station, a relay, a distributed unit, a transmission reception point (TRP), a transmission point (TP) or any other device. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network equipment. For the convenience of description, in all embodiments of the present application, the above-mentioned devices that provide wireless communication functions for terminal devices are collectively referred to as network devices.

[0041] In the embodiment of the present application, the terminal device may be any terminal, for example, the terminal device may be a user device for machine type communication. That is to say, the terminal device may also be referred to as a user equipment UE, a mobile station (MS), a mobile terminal, a terminal, etc. The terminal device may communicate with one or more core networks via a radio access network (RAN). For example, the terminal device may be a mobile phone (or a "cellular" phone), a computer with a mobile terminal, etc. For example, the terminal device may also be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device, which exchanges language and / or data with a radio access network. This is not specifically limited in the embodiment of the present application.

[0042] Optionally, the network device and the terminal device can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on the water surface; can also be deployed on aircraft, balloons and artificial satellites in the air. The embodiments of the present application do not limit the application scenarios of the network device and the terminal device.

[0043] Optionally, the network device and the terminal device, and the terminal device and the terminal device may communicate through a licensed spectrum, or may communicate through an unlicensed spectrum, or may communicate through both a licensed spectrum and an unlicensed spectrum. The network device and the terminal device, and the terminal device and the terminal device may communicate through a spectrum below 7 gigahertz (GHz), or may communicate through a spectrum above 7 GHz, or may communicate using a spectrum below 7 GHz and a spectrum above 7 GHz at the same time. The embodiments of the present application do not limit the spectrum resources used between the network device and the terminal device.

[0044] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device to device (D2D) communication, machine to machine (M2M) communication, machine type communication (MTC), and vehicle to vehicle (V2V) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0045] For example, the communication system 100 used in the embodiment of the present application is as follows: Figure 1 As shown. The communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or referred to as a communication terminal or terminal). The network device 110 may provide communication coverage for a specific geographical area, and may communicate with terminal devices located in the coverage area. Optionally, the network device 110 may be a base station (Base Transceiver Station, BTS) in a GSM system or a CDMA system, or a base station (NodeB, NB) in a WCDMA system, or an evolved base station (Evolutional Node B, eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN), or the network device may be a mobile switching center, a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future evolved public land mobile network (Public Land Mobile Network, PLMN), etc.

[0046] The communication system 100 also includes at least one terminal device 120 located within the coverage of the network device 110. As used herein, "terminal device" includes but is not limited to connection via a wired line, such as via a Public Switched Telephone Networks (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection; and / or another data connection / network; and / or via a wireless interface, such as, for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter; and / or a device of another terminal device configured to receive / send communication signals; and / or an Internet of Things (IoT) device. A terminal device configured to communicate via a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communications System (PCS) terminals that may combine cellular radiotelephones with data processing, fax, and data communications capabilities; PDAs that may include radiotelephones, pagers, Internet / Intranet access, Web browsers, notepads, calendars, and / or Global Positioning System (GPS) receivers; and conventional laptop and / or palmtop receivers or other electronic devices that include radiotelephone transceivers. A terminal device may refer to an access terminal, user equipment (UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device. The access terminal can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolved PLMN, etc.

[0047] Optionally, terminal devices 120 may perform device-to-device (D2D) communication with each other.

[0048] Optionally, the 5G system or 5G network may also be referred to as a New Radio (NR) system or NR network.

[0049] Figure 1 One network device and two terminal devices are shown exemplarily. Optionally, the communication system 100 may include multiple network devices and each network device may include another number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0050] Optionally, the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.

[0051] It should be understood that the device with communication function in the network / system in the embodiment of the present application can be referred to as a communication device. Figure 1 Taking the communication system 100 shown as an example, the communication equipment may include a network device 110 and a terminal device 120 with communication functions. The network device 110 and the terminal device 120 may be the specific devices described above and will not be repeated here. The communication equipment may also include other devices in the communication system 100, such as a network controller, a mobile management entity and other network entities, which is not limited in the embodiments of the present application.

[0052] An optional processing flow of a cell measurement method applied to a terminal device provided in an embodiment of the present application is as follows: Figure 2 As shown, the following steps are included:

[0053] Step S201: The terminal device receives first indication information, where the first indication information is used to indicate whether the terminal device performs cell measurement corresponding to a frequency point according to satellite coverage information.

[0054] In some embodiments, the frequency point may be a frequency point associated with the satellite.

[0055] In some embodiments, the terminal device receives first indication information sent by the network device.

[0056] In specific implementation, for a terminal device in RRC-Idle state or RRC-Inactive state, the terminal device can receive the first indication information sent by the network device through a system message. For a terminal device in a connected state, the terminal device can receive the first indication information sent by the network device through a system message, or can receive the first indication information sent by the network device through RRC signaling.

[0057] In some embodiments, if the first indication information is used to instruct the terminal device to perform cell measurement corresponding to the frequency point according to the coverage information of the satellite cell, the terminal device also receives second indication information, and the second indication information is used to indicate the ephemeris information of the satellite and / or the coverage information of the satellite.

[0058] In some embodiments, the first indication information and the second indication information may be carried in the same message or in different messages. For example, for a terminal device in an RRC-Idle state or an RRC-Inactive state, the first indication information and the second indication information may be carried in the same system message, or the first indication information and the second indication information may be carried in two different system messages. For a terminal device in a connected state, the first indication information and the second indication information may be carried in the same system message or in the same RRC signaling; the first indication information and the second indication information may also be carried in two different system messages or in two different RRC signaling; the first indication information and the second indication information may also be one of which is carried in a system message and the other is carried in an RRC signaling.

[0059] In some embodiments, the ephemeris information of the satellite may be the actual physical location information of the satellite. The coverage information of the satellite may include at least one of the following: an elevation angle threshold from the terminal device to the satellite, a first distance threshold from the terminal device to the satellite, a second distance threshold from the terminal device to a reference point, and the location information of the reference point. The elevation angle threshold, the first distance threshold, and the second distance threshold may all be configured by a network device, or may all be preset; the reference point may be the center of the ground position covered by the satellite, such as the central area or central position of the ground position covered by the satellite.

[0060] In some optional implementations, if the first indication information is used to instruct the terminal device to perform cell measurement corresponding to the frequency point according to the coverage information of the satellite, the cell measurement method may further include:

[0061] Step S202: If the measurement start condition is met, the terminal device measures all cells corresponding to the frequency point.

[0062] In some embodiments, the measurement initiation condition is related to the location information of the terminal device and / or the ephemeris information of the satellite.

[0063] In a specific implementation, the measurement start condition may include at least one of the following: an elevation angle from the terminal device to the satellite is greater than or equal to an elevation angle threshold, a distance from the terminal device to the satellite is less than or equal to a first distance threshold, and a distance from the terminal device to a reference point is less than or equal to a second distance threshold. Wherein, greater than or equal to may also be understood as not less than, and less than or equal to may also be understood as not greater than.

[0064] Alternatively, in a specific implementation, the measurement start condition may also include at least one of the following: the elevation angle from the terminal device to the satellite is greater than an elevation angle threshold, the distance from the terminal device to the satellite is less than a first distance threshold, and the distance from the terminal device to the reference point is less than a second distance threshold.

[0065] In some embodiments, the terminal device measures all cells corresponding to the frequency point, which may be the terminal device measuring all satellite cells deployed on the frequency point. For example, satellite 1 is associated with frequency point f1, and frequency point f1 is associated with N satellites in total. If the measurement start condition is met, the terminal device performs cell measurement on all N cells.

[0066] In some other optional implementations, if the first indication information is used to instruct the terminal device to perform cell measurement corresponding to the frequency point according to the coverage information of the satellite, the cell measurement method may further include:

[0067] Step S203: If the measurement start condition is met, the terminal device measures the cell corresponding to the satellite.

[0068] In some embodiments, the measurement initiation condition is related to the location information of the terminal device and / or the ephemeris information of the satellite.

[0069] In a specific implementation, the measurement start condition may include at least one of the following: an elevation angle from the terminal device to the satellite is greater than or equal to an elevation angle threshold, a distance from the terminal device to the satellite is less than or equal to a first distance threshold, and a distance from the terminal device to a reference point is less than or equal to a second distance threshold. Wherein, greater than or equal to may also be understood as not less than, and less than or equal to may also be understood as not greater than.

[0070] Alternatively, in a specific implementation, the measurement start condition may also include at least one of the following: the elevation angle from the terminal device to the satellite is greater than an elevation angle threshold, the distance from the terminal device to the satellite is less than a first distance threshold, and the distance from the terminal device to the reference point is less than a second distance threshold.

[0071] In some embodiments, the terminal device measures all cells corresponding to the frequency point, and the terminal device may measure only the cell corresponding to the satellite. For example, satellite 1 is associated with frequency point f1, and frequency point f1 is associated with N satellites in total. If the measurement start condition is met, the terminal device performs cell measurement on all cells corresponding to satellite 1.

[0072] In some further optional implementations, if the first indication information is used to instruct the terminal device to perform cell measurement corresponding to the frequency point according to the coverage information of the satellite, the method may further include:

[0073] Step S204: If the signal quality of the serving cell is less than the first threshold and meets the measurement start condition, the terminal device measures all cells corresponding to the frequency point.

[0074] In some embodiments, the signal quality of the serving cell may include at least one of the following: Reference Signal Receiving Power (RSRP), Reference Signal Receiving Quality (RSRQ) and Signal to Interference plus Noise Ratio (SINR). The first threshold may be configured by the network device or may be preset.

[0075] In some embodiments, the measurement initiation condition is related to the location information of the terminal device and / or the ephemeris information of the satellite.

[0076] In a specific implementation, the measurement start condition may include at least one of the following: an elevation angle from the terminal device to the satellite is greater than or equal to an elevation angle threshold, a distance from the terminal device to the satellite is less than or equal to a first distance threshold, and a distance from the terminal device to a reference point is less than or equal to a second distance threshold. Among them, greater than or equal to can also be understood as not less than, and less than or equal to can also be understood as not greater than.

[0077] Alternatively, in a specific implementation, the measurement start condition may also include at least one of the following: the elevation angle from the terminal device to the satellite is greater than an elevation angle threshold, the distance from the terminal device to the satellite is less than a first distance threshold, and the distance from the terminal device to the reference point is less than a second distance threshold.

[0078] In some embodiments, the terminal device measures all cells corresponding to the frequency point, which may be the terminal device measuring all satellite cells deployed on the frequency point. For example, satellite 1 is associated with frequency point f1, and frequency point f1 is associated with N satellites in total. If the measurement start condition is met, the terminal device performs cell measurement on all N cells.

[0079] In some other optional implementation manners, if the first indication information is used to instruct the terminal device to perform cell measurement corresponding to the frequency point according to the coverage information of the satellite, the method may further include:

[0080] Step S205: If the signal quality of the serving cell is less than the first threshold and the measurement start condition is met, the terminal device measures the cell corresponding to the satellite.

[0081] In some embodiments, the signal quality of the serving cell may include at least one of the following: RSRP, RSRQ, and SINR. The first threshold may be configured by the network device or may be preset.

[0082] In some embodiments, the measurement initiation condition is related to the location information of the terminal device and / or the ephemeris information of the satellite.

[0083] In a specific implementation, the measurement start condition may include at least one of the following: an elevation angle from the terminal device to the satellite is greater than or equal to an elevation angle threshold, a distance from the terminal device to the satellite is less than or equal to a first distance threshold, and a distance from the terminal device to a reference point is less than or equal to a second distance threshold. Among them, greater than or equal to can also be understood as not less than, and less than or equal to can also be understood as not greater than.

[0084] Alternatively, in a specific implementation, the measurement start condition may also include at least one of the following: the elevation angle from the terminal device to the satellite is greater than an elevation angle threshold, the distance from the terminal device to the satellite is less than a first distance threshold, and the distance from the terminal device to the reference point is less than a second distance threshold.

[0085] In some embodiments, the terminal device measures all cells corresponding to the frequency point, and the terminal device may measure only the cell corresponding to the satellite. For example, satellite 1 is associated with frequency point f1, and frequency point f1 is associated with N satellites in total. If the measurement start condition is met, the terminal device performs cell measurement on all cells corresponding to satellite 1.

[0086] The above steps S202 to S205 respectively illustrate four optional implementation methods for the terminal device to start cell measurement. When the terminal device has performed cell measurement, the terminal device can also stop cell measurement in some scenarios; the following describes how the terminal device stops cell measurement.

[0087] After the terminal device executes any one of the above steps S202 to S205, the cell measurement method may further include: the terminal device stops cell measurement.

[0088] In some optional implementations, the terminal device stopping cell measurement may include:

[0089] Step S301: If all satellites associated with the frequency point meet the measurement stop condition, the terminal device stops measuring all cells corresponding to the frequency point.

[0090] For example, satellite 1 is associated with frequency f1, and frequency f1 is associated with N satellites in total. If all N satellite cells meet the measurement stop condition, the terminal device stops measuring all cells corresponding to the frequency.

[0091] In some embodiments, the measurement stop condition is related to the location information of the terminal device and / or the ephemeris information of the satellite.

[0092] In a specific implementation, the measurement stop condition may include at least one of the following: the elevation angle from the terminal device to the satellite is less than an elevation angle threshold, the distance from the terminal device to the satellite is greater than a first distance threshold, and the distance from the terminal device to the reference point is greater than a second distance threshold.

[0093] Alternatively, in a specific implementation, the measurement stop condition may further include at least one of the following: an elevation angle from the terminal device to the satellite is less than or equal to an elevation angle threshold, a distance from the terminal device to the satellite is greater than or equal to a first distance threshold, and a distance from the terminal device to a reference point is greater than or equal to a second distance threshold. Wherein, greater than or equal to may also be understood as not less than, and less than or equal to may also be understood as not greater than.

[0094] In some other optional implementations, the terminal device stopping cell measurement may include:

[0095] Step S302: If at least one satellite associated with the frequency point meets the measurement stop condition, the terminal device stops measuring all cells corresponding to the frequency point.

[0096] For example, satellite 1 is associated with frequency f1, and frequency f1 is associated with N satellites in total. If any one of the N satellites meets the measurement stop condition, the terminal device stops measuring all cells corresponding to the frequency.

[0097] In some embodiments, the measurement stop condition is related to the location information of the terminal device and / or the ephemeris information of the satellite.

[0098] In a specific implementation, the measurement stop condition may include at least one of the following: the elevation angle from the terminal device to the satellite is less than an elevation angle threshold, the distance from the terminal device to the satellite is greater than a first distance threshold, and the distance from the terminal device to the reference point is greater than a second distance threshold.

[0099] Alternatively, in a specific implementation, the measurement stop condition may further include at least one of the following: an elevation angle from the terminal device to the satellite is less than or equal to an elevation angle threshold, a distance from the terminal device to the satellite is greater than or equal to a first distance threshold, and a distance from the terminal device to a reference point is greater than or equal to a second distance threshold. Wherein, greater than or equal to may also be understood as not less than, and less than or equal to may also be understood as not greater than.

[0100] It should be noted that, in the embodiment of the present application, the terminal device performing cell measurement may refer to the terminal device performing neighboring cell measurement. The cell may refer to a satellite cell, and the satellite cell may refer to a cell covered by a satellite network or a cell not covered by a terrestrial communication network.

[0101] An optional processing flow of a cell measurement method applied to a network device provided in an embodiment of the present application is as follows: Figure 3 As shown, the following steps are included:

[0102] Step S401: The network device sends first indication information, where the first indication information is used to indicate whether the terminal device performs cell measurement corresponding to the frequency point according to the coverage information of the satellite.

[0103] In some embodiments, the frequency point may be a frequency point associated with the satellite.

[0104] In some embodiments, the network device sends first indication information to the terminal device.

[0105] In specific implementation, for a terminal device in RRC-Idle state or RRC-Inactive state, the network device may send the first indication information to the terminal device via a system message. For a terminal device in a connected state, the network device may send the first indication information to the terminal device via a system message, or may send the first indication information to the terminal device via RRC signaling.

[0106] In some embodiments, if the first indication information is used to instruct the terminal device to perform cell measurement corresponding to the frequency point according to the coverage information of the satellite cell, the network device also sends a second indication information to the terminal device, and the second indication information is used to indicate the ephemeris information of the satellite and / or the coverage information of the satellite.

[0107] In some embodiments, the first indication information and the second indication information may be carried in the same message or in different messages. For example, for a terminal device in an RRC-Idle state or an RRC-Inactive state, the first indication information and the second indication information may be carried in the same system message, or the first indication information and the second indication information may be carried in two different system messages. For a terminal device in a connected state, the first indication information and the second indication information may be carried in the same system message or in the same RRC signaling; the first indication information and the second indication information may also be carried in two different system messages or in two different RRC signaling; the first indication information and the second indication information may also be one of which is carried in a system message and the other is carried in an RRC signaling.

[0108] In some embodiments, the ephemeris information of the satellite may be the actual physical location information of the satellite. The coverage information of the satellite may include at least one of the following: an elevation angle threshold from the terminal device to the satellite, a first distance threshold from the terminal device to the satellite, a second distance threshold from the terminal device to a reference point, and the location information of the reference point. The elevation angle threshold, the first distance threshold, and the second distance threshold may all be configured by a network device, or may all be preset; the reference point may be the center of the ground position covered by the satellite, such as the central area or central position of the ground position covered by the satellite.

[0109] In some embodiments, the network device determines, based on the cells deployed on the frequency point, whether the terminal device performs cell measurement corresponding to the frequency point according to the coverage information of the satellite.

[0110] In a specific implementation, if satellite cells and ground cells are deployed on the frequency point, the first indication information is used to instruct the terminal device not to perform the cell measurement corresponding to the frequency point according to the coverage information of the satellite; in this scenario, the signal quality of the service cell in the prior art of the terminal device determines whether to perform neighboring cell measurement; accordingly, if the terminal device performs neighboring cell measurement according to the signal quality of the service cell, the terminal device also stops neighboring cell measurement according to the signal quality of the service cell; wherein the specific implementation process of the terminal device performing neighboring cell measurement or stopping neighboring cell measurement according to the signal quality of the service cell is the same as the prior art and will not be repeated here.

[0111] In a specific implementation, if only satellite cells are deployed on the frequency point, the first indication information is used to instruct the terminal device to perform cell measurement corresponding to the frequency point according to the coverage information of the satellite. It should be noted that in the embodiment of the present application, the terminal device performing cell measurement may refer to the terminal device performing neighboring cell measurement. The cell may refer to a satellite cell, and the satellite cell may refer to a cell covered by a satellite network.

[0112] It should be noted that, in the embodiment of the present application, the terminal device performing cell measurement may refer to the terminal device performing neighboring cell measurement. The cell may refer to a satellite cell, and the satellite cell may refer to a cell covered by a satellite network or a cell not covered by a terrestrial communication network.

[0113] Based on the above Figure 2 and Figure 3 The cell measurement method is described in detail. In the embodiment of the present application, a terminal device performs measurement or stops measurement on a neighboring cell corresponding to a frequency point, as shown in FIG. Figure 4 As shown, at time T1, the elevation angles of all satellites on the frequency point f1 associated with satellite 1 measured by the terminal device are less than the elevation angle threshold, then the terminal device does not start the measurement of the neighboring cells corresponding to frequency point f1. At time T2, the elevation angle 2 measured by the terminal device to satellite 1 is greater than the elevation angle threshold, then the terminal device starts the measurement of the neighboring cells corresponding to frequency point f1. At time T3, as the satellite moves, the elevation angle 3 measured by the terminal device to satellite 1 is still greater than the elevation angle threshold, then the terminal device continues to measure the neighboring cells corresponding to frequency point f1. At time T4, as the satellite moves, the elevation angles of all satellites on the frequency point f1 associated with satellite 1 measured by the terminal device are less than the elevation angle threshold, then the terminal device stops measuring the neighboring cells corresponding to frequency point f1.

[0114] The network device sends a first indication message to the terminal device; the first indication message is used to indicate whether the terminal device performs cell measurement corresponding to the frequency point according to the satellite coverage information, and the frequency point includes the frequency point associated with the satellite. In this way, the terminal device can determine whether to perform cell measurement corresponding to the frequency point according to the satellite coverage information according to the indication of the network device. In addition, the terminal device performs neighboring cell measurement corresponding to the frequency point only when the measurement start condition is met; and stops neighboring cell measurement corresponding to the frequency point when the measurement stop condition is met. Since the measurement start condition and the measurement stop condition are both related to the location information of the terminal device and the ephemeris information of the satellite, the terminal device starts the cell measurement corresponding to the frequency point when it is close to the satellite coverage, and stops the neighboring cell measurement corresponding to the frequency point when the terminal device is in the satellite coverage, thereby achieving energy saving of the terminal device.

[0115] To implement the above cell measurement method, the embodiment of the present application further provides a terminal device, and another optional structural diagram of the terminal device is as follows: Figure 5 As shown, the terminal device 500 includes:

[0116] The receiving unit 501 is configured to receive first indication information, where the first indication information is used to indicate whether the terminal device performs cell measurement corresponding to a frequency point according to coverage information of a satellite, where the frequency point includes a frequency point associated with the satellite.

[0117] In some optional embodiments, the receiving unit 501 is further configured to receive second indication information if the first indication information is used to instruct the terminal device to perform cell measurement corresponding to the frequency point according to the coverage information of the satellite cell, and the second indication information is used to indicate the ephemeris information of the satellite and / or the coverage information of the satellite.

[0118] In some optional implementations, the first indication information is carried in a system message;

[0119] And / or, the second indication information is carried in the system message.

[0120] In some optional implementations, the first indication information is carried in a system message or RRC signaling;

[0121] And / or, the second indication information is carried in the system message or the RRC signaling.

[0122] In some optional implementations, the coverage information of the satellite includes at least one of the following:

[0123] An elevation angle threshold from the terminal device to the satellite;

[0124] A first distance threshold from the terminal device to the satellite;

[0125] A second distance threshold from the terminal device to the reference point;

[0126] The position information of the reference point.

[0127] In some optional implementations, the terminal device 500 further includes:

[0128] The first processing unit 502 is configured to measure all cells corresponding to the frequency point if a measurement start condition is met.

[0129] In some optional implementations, the terminal device 500 further includes:

[0130] The second processing unit 503 is configured to measure the cell corresponding to the satellite if the measurement start condition is met.

[0131] In some optional implementations, the terminal device 500 further includes:

[0132] The third processing unit 504 is configured to measure all cells corresponding to the frequency point if the signal quality of the serving cell is less than the first threshold and the measurement start condition is met.

[0133] In some optional implementations, the terminal device 500 further includes:

[0134] The fourth processing unit 505 is configured to measure the cell corresponding to the satellite if the signal quality of the serving cell is less than the first threshold and the measurement start condition is met.

[0135] In some optional implementations, the signal quality includes at least one of the following: RSRP, RSRQ, and SINR.

[0136] In some optional implementations, the measurement initiation condition is related to the location information of the terminal device and / or the ephemeris information of the satellite.

[0137] In some optional implementations, the terminal device 500 further includes:

[0138] The fifth processing unit 506 is configured to stop measuring all cells corresponding to the frequency point if all satellites associated with the frequency point meet the measurement stop condition.

[0139] In some optional implementations, the terminal device 500 further includes:

[0140] The sixth processing unit 507 is configured to stop measuring the cell corresponding to the satellite that meets the stop condition if at least one satellite associated with the frequency point meets the measurement stop condition.

[0141] In some optional implementations, the measurement stop condition is related to the location information of the terminal device and / or the ephemeris information of the satellite.

[0142] In some optional implementations, the measurement start condition includes at least one of the following:

[0143] The elevation angle from the terminal device to the satellite is greater than or equal to the elevation angle threshold;

[0144] The distance between the terminal device and the satellite is less than or equal to a first distance threshold;

[0145] The distance between the terminal device and the reference point is less than or equal to the second distance threshold.

[0146] In some optional implementations, the measurement start condition includes at least one of the following:

[0147] The elevation angle from the terminal device to the satellite is greater than the elevation angle threshold;

[0148] The distance between the terminal device and the satellite is less than a first distance threshold;

[0149] The distance between the terminal device and the reference point is less than the second distance threshold.

[0150] In some optional implementations, the measurement stop condition includes at least one of the following:

[0151] The elevation angle from the terminal device to the satellite is less than the elevation angle threshold;

[0152] The distance between the terminal device and the satellite is greater than a first distance threshold;

[0153] The distance between the terminal device and the reference point is greater than the second distance threshold.

[0154] In some optional implementations, the measurement stop condition includes at least one of the following:

[0155] The elevation angle from the terminal device to the satellite is less than or equal to the elevation angle threshold;

[0156] The distance between the terminal device and the satellite is greater than or equal to a first distance threshold;

[0157] The distance between the terminal device and the reference point is greater than or equal to the second distance threshold.

[0158] To implement the above cell measurement method, the embodiment of the present application further provides a network device, and another optional structural diagram of the network device is as follows: Figure 6 As shown, the network device 600 includes:

[0159] The sending unit 601 is configured to send first indication information, where the first indication information is used to indicate whether the terminal device performs cell measurement corresponding to a frequency point according to coverage information of a satellite, where the frequency point includes a frequency point associated with the satellite.

[0160] In some optional embodiments, the sending unit 601 is further configured to send second indication information if the first indication information is used to instruct the terminal device to perform cell measurement corresponding to the frequency point according to the coverage information of the satellite cell, and the second indication information is used to indicate the ephemeris information of the satellite and / or the coverage information of the satellite.

[0161] In some optional implementations, the first indication information is carried in a system message; and / or the second indication information is carried in the system message.

[0162] In some optional implementations, the first indication information is carried in a system message or RRC signaling; and / or the second indication information is carried in the system message or the RRC signaling.

[0163] In some optional implementations, the coverage information of the satellite includes at least one of the following:

[0164] An elevation angle threshold from the terminal device to the satellite;

[0165] A first distance threshold from the terminal device to the satellite;

[0166] A second distance threshold from the terminal device to the reference point;

[0167] The position information of the reference point.

[0168] In some optional implementations, if a satellite cell and a terrestrial cell are deployed on the frequency point, the first indication information is used to instruct the terminal device not to perform cell measurement corresponding to the frequency point according to the coverage information of the satellite;

[0169] Alternatively, if only satellite cells are deployed on the frequency point, the first indication information is used to instruct the terminal device to perform cell measurement corresponding to the frequency point according to the coverage information of the satellite.

[0170] An embodiment of the present application also provides a terminal device, including a processor and a memory for storing a computer program that can be run on the processor, wherein the processor is used to execute the steps of the cell measurement method performed by the above-mentioned terminal device when running the computer program.

[0171] An embodiment of the present application also provides a network device, including a processor and a memory for storing a computer program that can be run on the processor, wherein the processor is used to execute the steps of the cell measurement method performed by the above-mentioned network device when running the computer program.

[0172] An embodiment of the present application further provides a chip, including: a processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes the cell measurement method executed by the above-mentioned terminal device.

[0173] An embodiment of the present application further provides a chip, including: a processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes the cell measurement method executed by the above-mentioned network device.

[0174] An embodiment of the present application further provides a storage medium storing an executable program, which, when executed by a processor, implements the cell measurement method performed by the above-mentioned terminal device.

[0175] An embodiment of the present application further provides a storage medium storing an executable program, and when the executable program is executed by a processor, the cell measurement method performed by the above network device is implemented.

[0176] An embodiment of the present application also provides a computer program product, including computer program instructions, which enable a computer to execute the cell measurement method executed by the above-mentioned terminal device.

[0177] An embodiment of the present application also provides a computer program product, including computer program instructions, which enable a computer to execute the cell measurement method executed by the above network device.

[0178] An embodiment of the present application also provides a computer program, which enables a computer to execute the cell measurement method executed by the above-mentioned terminal device.

[0179] An embodiment of the present application also provides a computer program, which enables a computer to execute the cell measurement method executed by the above network device.

[0180] Figure 7 700 is a schematic diagram of the hardware structure of an electronic device (terminal device or network device) of an embodiment of the present application. The electronic device 700 includes: at least one processor 701, a memory 702 and at least one network interface 704. The various components in the electronic device 700 are coupled together through a bus system 705. It can be understood that the bus system 705 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 705 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, Figure 7 Various buses are labeled as bus system 705.

[0181] It can be understood that the memory 702 can be a volatile memory or a non-volatile memory, and can also include both volatile and non-volatile memories. Among them, the non-volatile memory can be ROM, programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), magnetic random access memory (FRAM), ferromagnetic random access memory, flash memory, magnetic surface memory, optical disk, or compact disc read-only memory (CD-ROM); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), direct memory bus random access memory (DRRAM). The memory 702 described in the embodiments of the present application is intended to include but is not limited to these and any other suitable types of memory.

[0182] The memory 702 in the embodiment of the present application is used to store various types of data to support the operation of the electronic device 700. Examples of such data include: any computer program for operating on the electronic device 700, such as the application 7022. The program for implementing the method of the embodiment of the present application may be included in the application 7022.

[0183] The method disclosed in the above embodiment of the present application can be applied to the processor 701, or implemented by the processor 701. The processor 701 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit in the processor 701 or the instruction in the form of software. The above processor 701 may be a general processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The processor 701 can implement or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application. The general processor may be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiment of the present application, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium, which is located in the memory 702, and the processor 701 reads the information in the memory 702 and completes the steps of the above method in combination with its hardware.

[0184] In an exemplary embodiment, the electronic device 700 may be implemented by one or more application specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), FPGAs, general purpose processors, controllers, MCUs, MPUs, or other electronic components to execute the aforementioned method.

[0185] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0186] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0187] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0188] It should be understood that the terms "system" and "network" are often used interchangeably in this application. The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0189] The above is only a preferred embodiment of the present application and is not intended to limit the scope of protection of the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A cell measurement method, the method comprising: The terminal device receives a system message, where the system message includes coverage information of a satellite, where the coverage information of the satellite includes a second distance threshold from the terminal device to a reference point and location information of the reference point; and The terminal device determines whether to perform cell measurement corresponding to a frequency point according to the second distance threshold and the distance from the terminal device to the reference point, where the frequency point includes a frequency point associated with the satellite, wherein if the terminal device determines to perform cell measurement corresponding to the frequency point according to the second distance threshold and the distance from the terminal device to the reference point, the method further includes: If the measurement start condition is met, the terminal device measures all cells corresponding to the frequency point, wherein the measurement start condition includes: the distance from the terminal device to the reference point is less than or equal to the second distance threshold.

2. The method according to claim 1, wherein: The satellite coverage information also includes at least one of the following: An elevation angle threshold from the terminal device to the satellite; and A first distance threshold from the terminal device to the satellite.

3. The method according to claim 1, wherein: If the terminal device determines to perform cell measurement corresponding to the frequency point according to the second distance threshold and the distance from the terminal device to the reference point, the method further includes: If the measurement start condition is met, the terminal device measures the cell corresponding to the satellite.

4. The method according to claim 1, wherein: If the terminal device determines to perform cell measurement corresponding to the frequency point according to the second distance threshold and the distance from the terminal device to the reference point, the method further includes: If the signal quality of the serving cell is less than the first threshold and meets the measurement start condition, the terminal device measures all cells corresponding to the frequency point.

5. The method according to claim 1, wherein: If the terminal device determines to perform cell measurement corresponding to the frequency point according to the second distance threshold and the distance from the terminal device to the reference point, the method further includes: If the signal quality of the serving cell is less than a first threshold and the measurement start condition is met, the terminal device measures the cell corresponding to the satellite.

6. The method according to claim 4 or 5, wherein: The signal quality includes at least one of the following: Reference signal received power RSRP, reference signal received quality RSRQ and signal to interference plus noise ratio SINR.

7. The method according to any one of claims 1 to 5, wherein: The method further comprises: If all satellites associated with the frequency point meet the measurement stop condition, the terminal device stops measuring all cells corresponding to the frequency point.

8. The method according to any one of claims 1 to 5, wherein: The method further comprises: If at least one satellite associated with the frequency point meets the measurement stop condition, the terminal device stops measuring the cell corresponding to the satellite that meets the stop condition.

9. The method according to claim 7, wherein: The measurement stop condition is related to the location information of the terminal device and / or the ephemeris information of the satellite.

10. The method according to claim 8, wherein: The measurement stop condition is related to the location information of the terminal device and / or the ephemeris information of the satellite.

11. The method according to any one of claims 1 to 5, wherein: The measurement start condition also includes at least one of the following: The elevation angle from the terminal device to the satellite is greater than or equal to the elevation angle threshold; The distance between the terminal device and the satellite is less than or equal to a first distance threshold.

12. The method according to any one of claims 1 to 5, wherein: The measurement start condition also includes at least one of the following: The elevation angle from the terminal device to the satellite is greater than the elevation angle threshold; The distance between the terminal device and the satellite is less than a first distance threshold.

13. The method according to claim 7, wherein: The measurement stop condition includes at least one of the following: The elevation angle from the terminal device to the satellite is less than the elevation angle threshold; The distance between the terminal device and the satellite is greater than a first distance threshold; The distance between the terminal device and the reference point is greater than the second distance threshold.

14. The method according to claim 8, wherein: The measurement stop condition includes at least one of the following: The elevation angle from the terminal device to the satellite is less than the elevation angle threshold; The distance between the terminal device and the satellite is greater than a first distance threshold; The distance between the terminal device and the reference point is greater than the second distance threshold.

15. The method according to claim 7, wherein: The measurement stop condition includes at least one of the following: The elevation angle from the terminal device to the satellite is less than or equal to the elevation angle threshold; The distance between the terminal device and the satellite is greater than or equal to a first distance threshold.

16. The method according to claim 8, wherein: The measurement stop condition includes at least one of the following: The elevation angle from the terminal device to the satellite is less than or equal to the elevation angle threshold; The distance between the terminal device and the satellite is greater than or equal to a first distance threshold.

17. A cell measurement method, the method comprising: A network device sends a system message to a terminal device, where the system message includes coverage information of a satellite, where the coverage information of the satellite includes a second distance threshold from the terminal device to a reference point and location information of the reference point, so that the terminal device determines, based on the second distance threshold and the distance from the terminal device to the reference point, that the distance from the terminal device to the reference point is less than or equal to the second distance threshold, to measure all cells corresponding to a frequency point, where the frequency point includes a frequency point associated with the satellite.

18. The method according to claim 17, wherein: The satellite coverage information also includes at least one of the following: An elevation angle threshold from the terminal device to the satellite; and A first distance threshold from the terminal device to the satellite.

19. A terminal device, comprising: A receiving unit configured to receive a system message, wherein the system message includes coverage information of a satellite, and the coverage information of the satellite includes a second distance threshold from the terminal device to a reference point and location information of the reference point; a determining unit configured to determine whether to perform cell measurement corresponding to a frequency point according to the second distance threshold and the distance from the terminal device to the reference point, the frequency point including a frequency point associated with the satellite, and The first processing unit is configured to measure all cells corresponding to the frequency point if a measurement start condition is met, wherein the measurement start condition includes: the distance from the terminal device to the reference point is less than or equal to the second distance threshold.

20. The terminal device according to claim 19, wherein: The satellite coverage information also includes at least one of the following: An elevation angle threshold from the terminal device to the satellite; and A first distance threshold from the terminal device to the satellite.

21. The terminal device according to claim 19, wherein: The terminal device further includes: The second processing unit is configured to measure the cell corresponding to the satellite if the measurement start condition is met.

22. The terminal device according to claim 19, wherein: The terminal device further includes: The third processing unit is configured to measure all cells corresponding to the frequency point if the signal quality of the serving cell is less than the first threshold and the measurement start condition is met.

23. The terminal device according to claim 19, wherein: The terminal device further includes: The fourth processing unit is configured to measure the cell corresponding to the satellite if the signal quality of the serving cell is less than the first threshold and the measurement start condition is met.

24. The terminal device according to claim 22 or 23, wherein: The signal quality includes at least one of the following: Reference signal received power RSRP, reference signal received quality RSRQ and signal to interference plus noise ratio SINR.

25. The terminal device according to any one of claims 19 to 23, wherein: The terminal device further includes: The fifth processing unit is configured to stop measuring all cells corresponding to the frequency point if all satellites associated with the frequency point meet the measurement stop condition.

26. The terminal device according to any one of claims 19 to 23, wherein: The terminal device further includes: The sixth processing unit is configured to stop measuring the cell corresponding to the satellite that meets the stop condition if at least one satellite associated with the frequency point meets the measurement stop condition.

27. The terminal device according to claim 25, wherein: The measurement stop condition is related to the location information of the terminal device and / or the ephemeris information of the satellite.

28. The terminal device according to claim 26, wherein: The measurement stop condition is related to the location information of the terminal device and / or the ephemeris information of the satellite.

29. The terminal device according to any one of claims 19 to 23, wherein: The measurement start condition also includes at least one of the following: The elevation angle from the terminal device to the satellite is greater than or equal to the elevation angle threshold; The distance between the terminal device and the satellite is less than or equal to a first distance threshold.

30. The terminal device according to any one of claims 19 to 23, wherein: The measurement start condition also includes at least one of the following: The elevation angle from the terminal device to the satellite is greater than the elevation angle threshold; The distance between the terminal device and the satellite is less than a first distance threshold.

31. The terminal device according to claim 25, wherein: The measurement stop condition includes at least one of the following: The elevation angle from the terminal device to the satellite is less than the elevation angle threshold; The distance between the terminal device and the satellite is greater than a first distance threshold; The distance between the terminal device and the reference point is greater than the second distance threshold.

32. The terminal device according to claim 26, wherein: The measurement stop condition includes at least one of the following: The elevation angle from the terminal device to the satellite is less than the elevation angle threshold; The distance between the terminal device and the satellite is greater than a first distance threshold; The distance between the terminal device and the reference point is greater than the second distance threshold.

33. The terminal device according to claim 25, wherein: The measurement stop condition includes at least one of the following: The elevation angle from the terminal device to the satellite is less than or equal to the elevation angle threshold; The distance between the terminal device and the satellite is greater than or equal to a first distance threshold.

34. The terminal device according to claim 26, wherein: The measurement stop condition includes at least one of the following: The elevation angle from the terminal device to the satellite is less than or equal to the elevation angle threshold; The distance between the terminal device and the satellite is greater than or equal to a first distance threshold.

35. A network device, comprising: A sending unit is configured to send a system message to a terminal device, wherein the system message includes coverage information of a satellite, and the coverage information of the satellite includes a second distance threshold from the terminal device to a reference point and location information of the reference point, so that when the terminal device determines that the distance from the terminal device to the reference point is less than or equal to the second distance threshold based on the second distance threshold and the distance from the terminal device to the reference point, the terminal device determines to measure all cells corresponding to the frequency point, wherein the frequency point includes a frequency point associated with the satellite.

36. The network device according to claim 35, wherein: The satellite coverage information also includes at least one of the following: An elevation angle threshold from the terminal device to the satellite; and A first distance threshold from the terminal device to the satellite.

37. A terminal device comprising a processor and a memory for storing a computer program that can be run on the processor, wherein: When the processor is used to run the computer program, the processor performs the steps of the cell measurement method according to any one of claims 1 to 16.

38. A network device comprising a processor and a memory for storing a computer program that can be run on the processor, wherein: When the processor is used to run the computer program, the processor performs the steps of the cell measurement method according to claim 17 or 18.

39. A storage medium storing an executable program, wherein when the executable program is executed by a processor, the cell measurement method according to any one of claims 1 to 16 is implemented.

40. A storage medium storing an executable program, wherein when the executable program is executed by a processor, the cell measurement method according to claim 17 or 18 is implemented.

41. A computer program product, comprising computer program instructions, wherein the computer program instructions enable a computer to execute the cell measurement method according to any one of claims 1 to 16.

42. A computer program product, comprising computer program instructions, which enable a computer to execute the cell measurement method according to claim 17 or 18.

43. A chip, comprising: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes the cell measurement method according to any one of claims 1 to 16.

44. A chip, comprising: The processor is used to call and run a computer program from a memory, so that a device equipped with the chip executes the cell measurement method according to claim 17 or 18.

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