Measurement method and apparatus, communication device, communication system and storage medium

Abstract

Embodiments of the present disclosure provide a measurement method and apparatus, a communication device, a communication system, and a storage medium. The method is executed by a terminal, and the method comprises: determining whether neighbor cells include a non-terrestrial network (NTN) cell; if the neighbor cells do not include the NTN cell, determining not to measure a frequency point of the NTN cell. According to a technical solution provided by the embodiments of the present disclosure, a terminal, on the basis of a coverage condition of the NTN cell, flexibly selects whether to measure the frequency point of the NTN cell. Therefore, the terminal does not measure the frequency point of the NTN cell when the neighbor cells do not include the NTN cell, and measures the frequency point of the NTN cell when the neighbor cells include the NTN cell. In this way, unnecessary measurements can be reduced when a terminal measures frequency points of neighbor cells, and the power consumption of the terminal is reduced.

Description

Measurement method and device, communication equipment, communication system and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to measurement methods and devices, communication equipment, communication systems, and storage media. Background Art

[0002] Non-terrestrial networks (NTNs) are also called non-land networks. NTN network equipment may be located in the air, providing communication services to terminals on the ground via satellite communications. Due to the high mobility of NTN network equipment, the service time provided by NTN networks to terminals within a certain area is limited.

[0003] Summary of the Invention

[0004] Embodiments of the present disclosure provide a measurement method and apparatus, a communication device, and a storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a measurement method is provided, where the method is performed by a terminal and includes:

[0006] Determine whether the neighboring cells include a non-terrestrial network NTN cell;

[0007] The neighboring cells do not include the NTN cell, and it is determined not to measure the frequency of the NTN cell.

[0008] According to a second aspect of an embodiment of the present disclosure, a measurement method is provided, wherein the method is performed by a network device, and the method includes:

[0009] Sending first information to the terminal; the first information is used by the terminal to determine whether the neighboring cell includes the NTN cell.

[0010] According to a third aspect of an embodiment of the present disclosure, a measurement method is provided, wherein the method is performed by a communication system, and the method includes:

[0011] The network device sends first information to the terminal; the first information is used by the terminal to determine whether the neighboring cell includes the NTN cell;

[0012] The terminal determines whether the neighboring cells include a non-terrestrial network NTN cell;

[0013] The neighboring cells do not include the NTN cell, and the terminal determines not to measure the frequency of the NTN cell.

[0014] According to a fourth aspect of an embodiment of the present disclosure, a terminal is provided, wherein the terminal includes:

[0015] The determination module is configured to determine whether the neighboring cells include a non-terrestrial network (NTN) cell; if the neighboring cells do not include the NTN cell, the terminal determines not to measure the frequency of the NTN cell.

[0016] According to a fifth aspect of an embodiment of the present disclosure, a network device is provided, wherein the network device includes:

[0017] The sending module is configured to send first information to the terminal; the first information is used by the terminal to determine whether the neighboring cell includes the NTN cell.

[0018] According to a sixth aspect of an embodiment of the present disclosure, a communication system is provided, wherein the communication system includes a terminal and a network device, the terminal is configured to implement the measurement method provided by the first aspect, and the network device is configured to implement the measurement method provided by the second aspect.

[0019] According to a seventh aspect of an embodiment of the present disclosure, a communication device is provided, wherein the communication device includes:

[0020] one or more processors;

[0021] The processor is configured to call instructions to enable the communication device to execute the measurement method provided by the first aspect or the second aspect.

[0022] According to an eighth aspect of an embodiment of the present disclosure, a storage medium is provided, wherein the storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the measurement method provided by the first aspect or the second aspect.

[0023] The technical solution provided by the embodiments of the present disclosure facilitates a terminal to flexibly select whether to measure the frequency of an NTN cell based on the coverage of the NTN cell. Thus, if the neighboring cell does not include an NTN cell, the terminal does not measure the frequency of the NTN cell; if the neighboring cell includes an NTN cell, the terminal measures the frequency of the NTN cell. This reduces unnecessary measurements when measuring the frequency of neighboring cells, thereby reducing terminal power consumption.

[0024] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not restrictive of the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention.

[0026] FIG1 is a schematic diagram showing an architecture of a communication system according to an exemplary embodiment;

[0027] FIG2A is an interactive schematic diagram showing a measurement method according to an exemplary embodiment;

[0028] FIG2B is a schematic flow chart showing a measurement method according to an exemplary embodiment;

[0029] FIG3A is a schematic flow chart showing a measurement method according to an exemplary embodiment;

[0030] FIG3B is a schematic flow chart showing a measurement method according to an exemplary embodiment;

[0031] FIG3C is a schematic flow chart showing a measurement method according to an exemplary embodiment;

[0032] FIG4 is a schematic flow chart showing a measurement method according to an exemplary embodiment;

[0033] FIG5 is an interactive schematic diagram showing a measurement method according to an exemplary embodiment;

[0034] FIG6A is a schematic structural diagram of a terminal according to an exemplary embodiment;

[0035] FIG6B is a schematic structural diagram of a network device according to an exemplary embodiment;

[0036] FIG7A is a schematic structural diagram of a communication device 7100 according to an exemplary embodiment;

[0037] FIG7B is a schematic structural diagram of a chip 7200 according to an exemplary embodiment. DETAILED DESCRIPTION

[0038] Embodiments of the present disclosure provide a measurement method and apparatus, communication equipment, a communication system, and a storage medium.

[0039] In a first aspect, an embodiment of the present disclosure provides a measurement method, wherein the method is performed by a terminal, and the method includes:

[0040] Determine whether the neighboring cells include a non-terrestrial network NTN cell;

[0041] The neighboring cells do not include the NTN cell, and it is determined not to measure the frequency of the NTN cell.

[0042] In the above embodiment, when a terminal measures the frequency of a neighboring cell, the terminal can flexibly choose whether to measure the frequency of the NTN cell based on the coverage of the NTN cell. Thus, if the neighboring cell does not include an NTN cell, the terminal does not measure the frequency of the NTN cell; if the neighboring cell includes an NTN cell, the terminal measures the frequency of the NTN cell. This reduces unnecessary measurements when measuring the frequency of neighboring cells, thereby reducing terminal power consumption.

[0043] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0044] Receive first information sent by a network device of a serving cell; the first information is used by the terminal to determine whether the neighboring cell includes the NTN cell.

[0045] In the above embodiment, the network device of the serving cell currently accessed by the terminal sends the first information to the terminal, so that the terminal can accurately determine the coverage of the NTN cell based on the first information, thereby being able to flexibly choose whether to measure the frequency of the NTN cell according to the coverage of the NTN cell when measuring the frequency of the neighboring cell.

[0046] In conjunction with some embodiments of the first aspect, in some embodiments, the first information includes:

[0047] The time information is used by the terminal to determine the time when the neighboring cell includes the NTN cell.

[0048] In the above embodiment, by carrying time information in the first information, the terminal can intuitively and accurately determine the time when the neighboring cell includes the NTN cell based on the time information, so that when the terminal measures the frequency of the neighboring cell, the frequency of the NTN cell is measured during the time when the neighboring cell includes the NTN cell; and the frequency of the NTN cell is not measured during the time when the neighboring cell does not include the NTN cell.

[0049] In conjunction with some embodiments of the first aspect, in some embodiments, the time information includes at least one of first time information, second time information, and third time information;

[0050] The first time information is associated with one or more NTN cells, and the first time information is used by the terminal to determine the time when the neighboring cell includes the first cell; the first cell is the NTN cell associated with the first time information;

[0051] The second time information is associated with one or more satellites, and the second time information is used by the terminal to determine when a neighboring cell includes a second cell; the second cell is an NTN cell corresponding to the satellite associated with the second time information; and one of the satellites carries wireless devices of one or more NTN cells;

[0052] The third time information is associated with one or more NTN frequencies, and the third time information is used by the terminal to determine the time when the neighboring cell includes the third cell; the third cell is the NTN cell corresponding to the NTN frequency associated with the third time information; one NTN frequency can be used for one or more NTN cells.

[0053] In the above embodiment, the time information may be first time information configured for each cell (per cell), or the time information may be second time information configured for each satellite (per satellite); or the time information may be third time information configured for each frequency point (per frequency), thereby realizing time information with different configuration granularities.

[0054] In combination with some embodiments of the first aspect, in some embodiments, the first information includes multiple time information; different time information is associated with different NTN cells, or different time information is associated with different satellites, or different time information is associated with different NTN frequencies.

[0055] In the above embodiment, by carrying multiple time information in the first information, different time information can be used to associate different NTN cells, or different satellites, or different NTN frequencies, so that the terminal can determine the time when the neighboring cell includes each NTN cell based on the time information associated with different NTN cells, or the terminal can determine the time when the neighboring cell includes the NTN cell served by each satellite based on the time information associated with different satellites, or the terminal can determine the time when the neighboring cell includes the NTN cell served by each NTN frequency based on the time information associated with different NTN frequencies, thereby performing more targeted measurement when measuring the neighboring cell.

[0056] In conjunction with some embodiments of the first aspect, in some embodiments, the time information includes at least one of the following:

[0057] First time information, indicating the starting time when the neighboring cell includes the NTN cell;

[0058] Second time information, indicating a cutoff time at which the neighboring cell includes the NTN cell;

[0059] A first offset indicates a time difference between a reference time and a start time of the neighboring cells including the NTN cell;

[0060] The second offset indicates a time difference between a reference time and a termination time of the neighboring cells including the NTN cell.

[0061] In the above embodiment, the time information may carry at least one of the above information, so that the terminal can intuitively and accurately determine the time when the terminal needs to measure the frequency of the NTN cell and the time when the terminal does not need to measure the frequency of the NTN cell based on the time information.

[0062] In combination with some embodiments of the first aspect, in some embodiments, the first time information is used to indicate the starting time when the neighboring cell earliest includes the NTN cell of the first frequency point; or, the first time information is used to indicate the starting time when the neighboring cell earliest includes the first satellite; the first satellite carries one or more wireless devices of the NTN cell.

[0063] In the above embodiment, the first time information indicates the start time of the NTN cell that first includes the first frequency in the neighboring cell, so that the terminal does not measure the first frequency before the start time indicated by the first time information; it starts measuring the first frequency after the start time indicated by the first time information. Alternatively, the first time information indicates the start time of the first satellite that first includes the neighboring cell, so that the terminal does not measure the frequencies of one or more NTN cells corresponding to the first satellite before the start time indicated by the first time information; it starts measuring the frequencies of one or more NTN cells corresponding to the first satellite after the start time indicated by the first time information. This accurately determines the time when a specific NTN frequency or the frequency of an NTN cell associated with a specific satellite needs to be measured.

[0064] In conjunction with some embodiments of the first aspect, in some embodiments, the first information further includes:

[0065] Frequency information is used to indicate the frequency used by the NTN cell.

[0066] In the above embodiment, the first information carries frequency information indicating the frequency used by the NTN cell. When the terminal determines that a neighboring cell includes an NTN cell, the terminal can directly determine the frequency of the NTN cell based on the frequency information and measure the frequency of the NTN cell. This eliminates the need for the terminal to query the frequency of the NTN cell on its own.

[0067] In conjunction with some embodiments of the first aspect, in some embodiments, determining whether the neighboring cell includes a non-terrestrial network NTN cell includes at least one of the following:

[0068] Before reaching the starting time, determining that the neighboring cells do not include the NTN cell;

[0069] After reaching the starting time, it is determined that the neighboring cell includes the NTN cell.

[0070] In the above embodiment, the terminal can determine whether the neighboring cell includes the NTN cell according to whether the current time reaches the starting time indicated by the first time information, and the determination process is efficient and fast.

[0071] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0072] The neighboring cells include the NTN cell, and the terminal determines to measure the frequency of the NTN cell when the measurement value of the serving cell meets a measurement criterion.

[0073] In the above embodiment, when the measurement value of the serving cell satisfies the measurement criteria, that is, the terminal needs to measure the frequency of the neighboring cell, if the neighboring cell includes an NTN cell, the terminal should measure the frequency of the NTN cell, which is conducive to the terminal located in the coverage area of ​​the NTN cell to switch from the currently serving terrestrial network cell to the NTN cell.

[0074] In conjunction with some embodiments of the first aspect, in some embodiments, the neighboring cell includes the NTN cell, and the terminal determines to measure the frequency of the NTN cell when the measurement value of the serving cell meets the measurement criterion, including at least one of the following:

[0075] When the frequency information of the redirected cell configured by the network device includes the frequency of the NTN cell and the neighboring cell includes the NTN cell and the measurement criteria are met, measuring the frequency of the NTN cell;

[0076] When the frequency priority of the NTN cell is lower than or equal to the frequency priority of the serving cell and the neighboring cell includes the NTN cell and meets the measurement criterion, the frequency of the NTN cell is measured.

[0077] In the above embodiment, for the case where the NTN cell is a redirection cell configured by the network device and / or the frequency priority of the NTN cell is lower than or equal to the frequency priority of the serving cell, when the measurement value of the serving cell meets the measurement criteria and the neighboring cell includes the NTN cell, the terminal can measure the frequency of the NTN cell, so that the terminal located in the coverage area of ​​the NTN cell can access the NTN cell.

[0078] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0079] The neighboring cell includes the NTN cell and the frequency information of the redirected cell configured by the network device includes the frequency of the NTN cell. The terminal determines to measure the frequency of the NTN cell when the measurement value of the serving cell does not meet the measurement criterion.

[0080] In the above embodiment, for the case where the NTN cell is a redirected cell configured by the network device, if the neighboring cell includes the NTN cell, the terminal can perform frequency measurement of the NTN cell when the measurement value of the serving cell does not meet the measurement accuracy, so that the terminal located in the coverage area of ​​the NTN cell can access the redirected configured NTN cell.

[0081] In combination with some embodiments of the first aspect, in some embodiments, the neighboring cell includes the NTN cell and the frequency information of the redirected cell configured by the network device includes the frequency of the NTN cell, and the terminal determines to measure the frequency of the NTN cell when the measurement value of the serving cell does not meet the measurement criteria, including:

[0082] The frequency priority of the NTN cell is lower than or equal to the frequency priority of the serving cell and the frequency information of the redirected cell includes the frequency of the NTN cell. When the neighboring cell includes the NTN cell and the measurement value of the serving cell does not meet the measurement criteria, the terminal measures the frequency of the NTN cell.

[0083] In the above embodiment, for the case where the frequency priority of the NTN cell is lower than or equal to the frequency priority of the serving cell, if the neighboring cell includes the NTN cell and the frequency of the NTN cell is included in the frequency information of the redirected cell configured by the network device, the terminal can perform measurement of the frequency of the NTN cell when the measurement value of the serving cell does not meet the measurement accuracy, so that the terminal located in the coverage area of ​​the NTN cell can access the redirected configured NTN cell.

[0084] In conjunction with some embodiments of the first aspect, in some embodiments, the measurement criterion includes at least one of the following:

[0085] Measurement criteria for cell reselection;

[0086] Measurement criteria for cell selection.

[0087] In the above embodiment, when the terminal performs cell reselection or cell selection, the terminal can flexibly select whether to measure the frequency of the NTN cell according to whether the neighboring cells include the NTN cell and whether the measurement value of the serving cell meets the measurement criteria of the cell reselection or cell selection.

[0088] In combination with some embodiments of the first aspect, in some embodiments, the first information is carried in a system information block SIB.

[0089] In the above embodiment, the network device may reuse the existing system information block SIB to send the first information, so that when the network device broadcasts the SIB, all terminals residing in the cell of the network device can obtain the first information, thereby reducing signaling overhead.

[0090] In conjunction with some embodiments of the first aspect, in some embodiments, the first information further includes:

[0091] The first indication is used to indicate the mobility status of the satellite corresponding to the NTN cell.

[0092] In the above embodiment, by carrying a first indication indicating the mobility status of a satellite corresponding to an NTN cell in the first information, the terminal can determine the position of the satellite corresponding to the NTN cell based on the first indication, thereby determining the coverage of the NTN cell. This allows the terminal to flexibly choose whether to measure the frequency of the NTN cell based on the coverage of the NTN cell.

[0093] In a second aspect, an embodiment of the present disclosure provides a measurement method, wherein the method is performed by a network device, and the method includes:

[0094] Sending first information to the terminal; the first information is used by the terminal to determine whether the neighboring cell includes the NTN cell.

[0095] In the above embodiment, the network device of the serving cell currently accessed by the terminal sends the first information to the terminal, so that the terminal can accurately determine the coverage of the NTN cell based on the first information. Therefore, when measuring the frequency of a neighboring cell, the terminal can flexibly choose whether to measure the frequency of the NTN cell based on the coverage of the NTN cell. In this way, when measuring the frequency of the neighboring cell, the terminal can reduce unnecessary measurements and reduce power consumption of the terminal.

[0096] In conjunction with some embodiments of the second aspect, in some embodiments, the first information includes:

[0097] The time information is used by the terminal to determine the time when the neighboring cell includes each of the NTN cells.

[0098] In conjunction with some embodiments of the second aspect, in some embodiments, the time information includes at least one of first time information, second time information, and third time information;

[0099] The first time information is associated with one or more NTN cells, and the first time information is used by the terminal to determine the time when the neighboring cell includes the first cell; the first cell is the NTN cell associated with the first time information;

[0100] The second time information is associated with one or more satellites, and the second time information is used by the terminal to determine when a neighboring cell includes a second cell; the second cell is an NTN cell corresponding to the satellite associated with the second time information; and one of the satellites carries wireless devices of one or more NTN cells;

[0101] The third time information is associated with one or more NTN frequencies, and the third time information is used by the terminal to determine the time when the neighboring cell includes the third cell; the third cell is the NTN cell corresponding to the NTN frequency associated with the third time information; one NTN frequency can be used for one or more NTN cells.

[0102] In combination with some embodiments of the second aspect, in some embodiments, the first information includes time information.

[0103] In combination with some embodiments of the second aspect, in some embodiments, the first information includes multiple time information; different time information is associated with different NTN cells, or different time information is associated with different satellites, or different time information is associated with different NTN frequencies.

[0104] In conjunction with some embodiments of the second aspect, in some embodiments, the time information includes at least one of the following:

[0105] First time information, indicating the starting time when the neighboring cell includes the NTN cell;

[0106] Second time information, indicating a cutoff time at which the neighboring cell includes the NTN cell;

[0107] A first offset indicates a time difference between a reference time and a start time of the neighboring cells including the NTN cell;

[0108] The second offset indicates a time difference between a reference time and a termination time of the neighboring cells including the NTN cell.

[0109] In combination with some embodiments of the second aspect, in some embodiments, the first time information is used to indicate the starting time when the neighboring cell earliest includes the NTN cell of the first frequency point; or, the first time information is used to indicate the starting time when the neighboring cell earliest includes the first satellite; the first satellite carries one or more wireless devices of the NTN cell.

[0110] In conjunction with some embodiments of the second aspect, in some embodiments, the first information further includes:

[0111] Frequency information is used to indicate the frequency used by the NTN cell.

[0112] In combination with some embodiments of the second aspect, in some embodiments, the first information is carried in a system information block SIB.

[0113] In conjunction with some embodiments of the second aspect, in some embodiments, the first information further includes:

[0114] The first indication is used to indicate the mobility status of the satellite corresponding to the NTN cell.

[0115] In a third aspect, an embodiment of the present disclosure provides a measurement method, performed by a communication system, the method including:

[0116] The network device sends first information to the terminal; the first information is used by the terminal to determine whether the neighboring cell includes the NTN cell;

[0117] The terminal determines whether the neighboring cells include a non-terrestrial network NTN cell;

[0118] The neighboring cells do not include the NTN cell, and the terminal determines not to measure the frequency of the NTN cell.

[0119] In a fifth aspect, an embodiment of the present disclosure provides a terminal, wherein the terminal includes:

[0120] The determination module is configured to determine whether the neighboring cells include a non-terrestrial network NTN cell; if the neighboring cells do not include the NTN cell, determine not to measure the frequency of the NTN cell.

[0121] In a sixth aspect, an embodiment of the present disclosure provides a network device, wherein the network device includes:

[0122] The sending module is configured to send first information to the terminal; the first information is used by the terminal to determine whether the neighboring cell includes the NTN cell.

[0123] In the seventh aspect, an embodiment of the present disclosure provides a communication system, wherein the communication system includes a terminal and a network device, the terminal is configured to implement the measurement method described in the optional implementation manner of the first aspect, and the network device is configured to implement the measurement method described in the optional implementation manner of the second aspect.

[0124] In a ninth aspect, an embodiment of the present disclosure provides a communication device, the communication device comprising:

[0125] one or more processors;

[0126] The processor is configured to call an instruction to enable the communication device to execute the measurement method described in the optional implementation manner of the first aspect or the second aspect.

[0127] In a tenth aspect, an embodiment of the present disclosure provides a storage medium, wherein the storage medium stores instructions, which, when the instructions are executed on a communication device, enable the communication device to execute the measurement method described in the optional implementation of the first aspect or the second aspect.

[0128] In an eleventh aspect, an embodiment of the present disclosure provides a program product, which, when executed by a communication device, enables the communication device to execute the measurement method described in the optional implementation manner of the first aspect or the second aspect.

[0129] In a twelfth aspect, an embodiment of the present disclosure provides a computer program, which, when executed on a computer, enables the computer to execute the measurement method described in the optional implementation manner of the first aspect or the second aspect.

[0130] It is understandable that the above-mentioned terminals, network devices, communication devices, communication systems, storage media, program products, and computer programs are all used to execute the methods provided by the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.

[0131] The present disclosure provides a measurement method and apparatus, a communication device, a communication system, and a storage medium. In some embodiments, the terms measurement method, information processing method, and information transmission method are interchangeable, and the terms communication system and information processing system are interchangeable.

[0132] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0133] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0134] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0135] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0136] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0137] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0138] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "in one case A, in another case B," or "in one case A, in another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, and C.

[0139] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0140] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0141] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0142] In some embodiments, terms such as "...", "determine...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0143] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0144] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.

[0145] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).

[0146] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.

[0147] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.

[0148] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it is also possible to set the structure in which the terminal has all or part of the functions of the access network device. In addition, terms such as "uplink" and "downlink" can also be replaced by terms corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.

[0149] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.

[0150] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0151] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0152] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0153] Fig. 1 is a schematic diagram showing the architecture of a communication system according to an exemplary embodiment.

[0154] As shown in FIG1 , a communication system 100 includes a terminal 101 and a network device 102 .

[0155] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0156] In some embodiments, the network device 102 may include an access network device and a core network device.

[0157] In some embodiments, the access network device may be, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0158] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0159] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0160] In some embodiments, a core network device may be a single device including one or more network elements, or may be multiple devices or a group of devices, each including one or more network elements. A network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), or a Next Generation Core (NGC).

[0161] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.

[0162] The following embodiments of the present disclosure may be applied to the communication system 100 shown in Figure 1, or a portion thereof, but are not limited thereto. The entities shown in Figure 1 are illustrative only. The communication system may include all or part of the entities shown in Figure 1, or may include other entities outside of Figure 1. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0163] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0164] In the 3rd Generation Partnership Project (3 rdThe 3GPP (3rd Generation Partnership Project) specifies the related technologies of Internet of Things NTN (IoT NTN) based on non-terrestrial network (NTN) and 5G smart terminal access based on NTN (New Radio NTN, NR NTN). In terms of mobility, the terminal will move between the terrestrial network (TN) of the evolved universal terrestrial radio access network (E-UTRAN) and the NR NTN.

[0165] Therefore, support for the mobility of idle (IDLE) terminals from E-UTRAN TN and NR NTN will be studied; among them, E-UTRAN TN needs to provide satellite information of NR NTN (from the perspective of the terminal, NR NTN is the neighboring cell of the terminal), that is, E-UTRAN TN needs to provide satellite information of the neighboring cell NR NTN, such as satellite ephemeris information.

[0166] The terminal can measure the NR NTN based on the NR NTN satellite information, which helps the terminal reselect the cell. For example, the terminal reselects from E-UTRAN TN to NR NTN.

[0167] In some embodiments, the E-UTRAN TN provides information about 5G New Radio (NR) frequencies and NR neighboring cells through a System Information Block (SIB) 24 for the terminal to perform inter-RAT cell reselection.

[0168] In some embodiments, when a terminal reselects from an E-UTRAN TN to another cell, the following measurement principles need to be followed:

[0169] For E-UTRAN with priority indicated in system messages:

[0170] For inter-E-UTRAN frequencies and inter-RAT frequencies whose frequency priorities are higher than the frequency priority of the current serving cell, the terminal should perform measurement of the inter-E-UTRAN frequencies and inter-RAT frequencies with higher priorities.

[0171] For inter-E-UTRAN frequencies with a frequency priority lower than or equal to the frequency priority of the current serving cell, and for inter-RAT frequencies with a frequency priority lower than the frequency priority of the current serving cell:

[0172] If the terminal performs RSS measurement and the measurement value of the serving cell satisfies Srxlev>S nonIntraSearchP When S is set, the terminal may choose not to perform measurements on E-UTRAN inter-frequency points or inter-RAT inter-frequency points of equal or lower priority, unless the E-UTRAN inter-frequency points are configured for redirection. nonIntraSearchP It is the reference signal receiving power (RSRP) threshold used by the terminal to determine whether to perform inter-frequency measurement.

[0173] If the measurement value of the serving cell satisfies Srxlev>S nonIntraSearchP and Squal>S nonIntraSearchQ When the terminal is redirected, it may choose not to perform measurements on E-UTRAN inter-frequency points or inter-RAT frequency points of equal or lower priority, unless the redirection is configured for E-UTRAN inter-frequency points. nonIntraSearchQ It is the reference signal receiving quality (RSRQ) threshold used by the terminal to determine whether to perform inter-frequency measurement.

[0174] If the measurement value of the serving cell does not satisfy Srxlev>S nonIntraSearchP , or the measurement value of the serving cell does not satisfy Srxlev>S nonIntraSearchP and Squal>S nonIntraSearchQ When the UE performs the measurement of the E-UTRAN inter-frequency points or inter-RAT frequency points of equal or lower priority, the UE shall perform the measurement of the E-UTRAN inter-frequency points or inter-RAT frequency points of equal or lower priority.

[0175] FIG2A is an interactive diagram illustrating a measurement method according to an exemplary embodiment. As shown in FIG2A , the embodiment of the present disclosure relates to a measurement method for a communication system 100, the method comprising:

[0176] Step S2101: The network device sends first information to the terminal.

[0177] In some embodiments, the terminal receives first information sent by the network device.

[0178] The terminal involved in the embodiments of the present disclosure may be, but is not limited to, a mobile phone, a wearable device, a vehicle-mounted terminal and / or a road side unit (RSU). The network device may be a network device of a serving cell where the terminal currently resides.

[0179] In some embodiments, the serving cell where the terminal currently resides may be a terrestrial network (TN) cell.

[0180] In some embodiments, the network device may send the first information to the terminal by broadcasting, multicasting, or unicasting.

[0181] In some embodiments, the first information may be carried in a system information block (SIB).

[0182] In some embodiments, the first information is used by the terminal to determine whether the neighboring cell includes an NTN cell.

[0183] It should be noted that because NTN network equipment is typically deployed on aircraft, drones, or satellites, it is highly mobile. The coverage of NTN network equipment will constantly change as it moves. This can cause an NTN cell that originally provided signal coverage to devices in the terminal's area to move out of the terminal's area after a period of time and no longer provide signal coverage to devices in the terminal's area. Alternatively, an NTN cell that originally did not provide signal coverage to devices in the terminal's area may, after a period of time, be able to provide signal coverage to devices in the terminal's area.

[0184] Therefore, when the terminal performs frequency measurement on the neighboring cells, it needs to first determine whether the neighboring cells of the terminal include the NTN cell, so as to determine whether the frequency of the NTN cell needs to be measured, thereby reducing unnecessary frequency measurement of the NTN cell and reducing the power consumption of the terminal.

[0185] In some embodiments, the frequency point of the NTN cell may be the center frequency of the frequency range used by the NTN cell.

[0186] In some embodiments, the frequency point of the NTN cell generally refers to the frequency or frequency range used by the NTN cell.

[0187] In some embodiments, the first information includes:

[0188] The time information is used by the terminal to determine the time when the neighboring cell includes the NTN cell.

[0189] In some embodiments, the time information may indicate the time during which the NTN cell can provide signal coverage for the area where the terminal is located.

[0190] The time information includes at least one of the first time information, the second time information and the third time information;

[0191] The first time information is associated with one or more NTN cells, and the first time information is used by the terminal to determine the time when the neighboring cell includes the first cell; the first cell is the NTN cell associated with the first time information;

[0192] The second time information is associated with one or more satellites, and the second time information is used by the terminal to determine when a neighboring cell includes a second cell; the second cell is an NTN cell corresponding to the satellite associated with the second time information; and one of the satellites carries wireless devices of one or more NTN cells;

[0193] The third time information is associated with one or more NTN frequencies, and the third time information is used by the terminal to determine the time when the neighboring cell includes the third cell; the third cell is the NTN cell corresponding to the NTN frequency associated with the third time information; one NTN frequency can be used for one or more NTN cells.

[0194] It is worth noting that the time information can be configured for each NTN cell (per cell), or for each satellite (per satellite), or for each frequency point (per frequency).

[0195] It should be noted that a satellite can provide services for one or more NTN cells; the time information can indicate the time when at least one NTN cell of the satellite can provide signal coverage for the area where the terminal is located.

[0196] A frequency point can be associated with multiple NTN cells, that is, multiple NTNs use the same frequency point. The time information can indicate the time when at least one NTN cell associated with the frequency point can provide signal coverage for the area where the terminal is located.

[0197] In some embodiments, the first information includes multiple time information; different time information is associated with different NTN cells, or different time information is associated with different satellites, or different time information is associated with different NTN frequencies.

[0198] It should be noted that each of the multiple time information may correspond to an NTN cell, allowing the terminal to determine, based on each piece of time information, the time when a neighboring cell includes the corresponding NTN cell. Alternatively, each of the multiple time information may correspond to a satellite, allowing the terminal to determine, based on each piece of time information, the time when a neighboring cell includes the NTN cell of the corresponding satellite. Alternatively, each of the multiple time information may correspond to a frequency point, allowing the terminal to determine, based on each piece of time information, the time when a neighboring cell includes multiple NTN cells associated with the corresponding frequency point.

[0199] In some embodiments, the first time information is associated with one or more NTN cells, and the first time information includes frequency information associated with the one or more NTN cells;

[0200] In some embodiments, the second time information is associated with one or more satellites, and the second time information includes frequency information associated with the one or more satellites, or frequency information associated with cells deployed on the one or more satellites;

[0201] In some embodiments, the time information includes at least one of the following:

[0202] First time information, indicating the starting time when the neighboring cell includes the NTN cell;

[0203] Second time information, indicating a cutoff time at which the neighboring cell includes the NTN cell;

[0204] A first offset indicates a time difference between a reference time and a start time of the neighboring cells including the NTN cell;

[0205] The second offset indicates a time difference between a reference time and a termination time of the neighboring cells including the NTN cell.

[0206] It should be noted that the neighboring cell indicated by the first time information includes the starting time of the NTN cell. It can be understood that at the starting time indicated by the first time information, the NTN cell starts to provide signal coverage for the area where the terminal is located.

[0207] The neighboring cell indicated by the second moment information includes the cutoff time of the NTN cell. It can be understood that at the cutoff time indicated by the second moment information, the NTN cell stops providing signal coverage for the area where the terminal is located.

[0208] In some embodiments, the second time information includes at least one of the following:

[0209] First time information, indicating the starting time when the neighboring cell includes the NTN cell corresponding to the satellite;

[0210] Second time information, indicating a cutoff time at which the neighboring cell includes the NTN cell corresponding to the satellite;

[0211] A first offset indicates a time difference between a reference time and a start time of the neighboring cells including the NTN cell corresponding to the satellite;

[0212] The second offset indicates a time difference between a reference time and an end time of the NTN cell corresponding to the satellite included in the neighboring cell.

[0213] In some embodiments, the third time information includes at least one of the following:

[0214] First time information, indicating the starting time when the neighboring cell includes the NTN cell corresponding to the NTN frequency point;

[0215] Second time information, indicating the cutoff time when the neighboring cell includes the NTN cell corresponding to the NTN frequency point;

[0216] A first offset indicates a time difference between a reference time and a start time of the neighboring cell including the NTN cell corresponding to the NTN frequency point;

[0217] The second offset indicates a time difference between a reference time and an end time of the NTN cell corresponding to the NTN frequency point included in the neighboring cell.

[0218] In some embodiments, the first time information indicates the starting time when the neighboring cell last included the NTN cell.

[0219] In some embodiments, the second time information indicates the cutoff time when the neighboring cell last included the NTN cell.

[0220] It is worth noting that since the satellites of the NTN cell can perform circular orbital motion around the earth, even if the satellites of the NTN cell have left the terminal area during the current orbital motion, in the subsequent orbital motion, the satellites of the NTN cell will continue to move to the terminal area and provide signal coverage for the devices in the terminal area.

[0221] Based on this, the starting time when the neighboring cells include the NTN cell can be the starting time when the NTN cell starts to provide signal coverage for the area where the terminal is located during the current orbital movement, or it can be the starting time when the NTN cell starts to provide signal coverage for the area where the terminal is located during each subsequent orbital movement.

[0222] Similarly, the cutoff time when the neighboring cell includes the NTN cell can be the cutoff time when the NTN cell stops providing signal coverage for the area where the terminal is located during the current orbital movement, or it can be the cutoff time when the NTN cell stops providing signal coverage for the area where the terminal is located during each subsequent orbital movement.

[0223] In this way, the amount of information carried by the first moment information and / or the second moment information can be effectively reduced.

[0224] It should be noted that the first offset may be used to determine the starting time when the neighboring cells include the NTN cell; the starting time when the neighboring cells include the NTN cell may be equal to the reference time plus the time difference indicated by the first offset.

[0225] It is understandable that when the neighboring cell does not include the NTN cell, the network device can send a first offset to the terminal to inform the terminal that the NTN cell starts to provide signal coverage for the area where the terminal is located after the time difference (duration) indicated by the first offset.

[0226] The second offset may be used to determine the cutoff time when the neighboring cell includes the NTN cell; the cutoff time when the neighboring cell includes the NTN cell may be equal to the reference time plus the time difference indicated by the second offset.

[0227] It is understandable that when the neighboring cell includes an NTN cell, the network device can send a second offset to the terminal to inform the terminal that after the time difference (duration) indicated by the second offset, the NTN cell stops providing signal coverage for the area where the terminal is located.

[0228] It is worth noting that the reference time can be a pre-agreed time, or the reference time can be the time when the network device sends the time information. It should be noted that if the reference time is the time when the network device sends the time information, the time information also needs to carry information indicating the reference time.

[0229] In some embodiments, the first time information is used to indicate the starting time when the neighboring cell earliest includes the NTN cell of the first frequency; or, the first time information is used to indicate the starting time when the neighboring cell earliest includes the first satellite; the first satellite carries one or more wireless devices of the NTN cell.

[0230] It should be noted that, when the first time information indicates the starting time of the NTN cell of the neighboring cell that earliest includes the first frequency point, the terminal can determine whether to measure the first frequency point according to the starting time indicated by the first time information.

[0231] Before the start time indicated by the first time information, the first frequency point is not measured; after the start time indicated by the first time information, the first frequency point is measured, thereby accurately determining the time when a certain NTN frequency point needs to be measured.

[0232] When the first time information indicates the earliest starting time when the neighboring cell includes the first satellite, the terminal may determine whether to measure the frequency of one or more NTN cells associated with the first satellite according to the starting time indicated by the first time information.

[0233] Before the start time indicated by the first time information, the frequency of one or more NTN cells associated with the first satellite is not measured; after the start time indicated by the first time information, the frequency of one or more NTN cells associated with the first satellite begins to be measured. In this way, the time when the frequency of one or more NTN cells associated with a certain satellite needs to be measured is accurately determined.

[0234] In some embodiments, the first information further includes:

[0235] Frequency information is used to indicate the frequency used by the NTN cell.

[0236] In some embodiments, the frequency information is used to indicate the frequency of the satellite.

[0237] It should be noted that by carrying frequency information indicating the frequency used by the NTN cell in the first information, when the terminal determines that the neighboring cell includes an NTN cell, the terminal can directly determine the frequency of the NTN cell based on the frequency information and measure the frequency of the NTN cell. In this way, the terminal does not need to query the frequency of the NTN cell on its own.

[0238] In some embodiments, the first information further includes:

[0239] The first indication is used to indicate the mobility status of the satellite corresponding to the NTN cell.

[0240] In some embodiments, the first indication is used to compensate for the transmission delay and / or frequency offset from the terminal to the satellite corresponding to the NTN cell.

[0241] It can be understood that the network device informs the terminal of the mobility status of the satellite corresponding to each NTN cell by carrying the first indication in the first information, so that after the terminal accesses the NTN cell, it can compensate for the transmission delay and / or frequency offset from the terminal to the satellite corresponding to the NTN cell based on the first indication.

[0242] In some embodiments, the first information may further include:

[0243] The second indication is used to indicate the frequency priority of the NTN cell.

[0244] It is understandable that the network device can inform the terminal of the frequency priority of each NTN cell by carrying the second indication in the first information, so that the network device can determine the priority order between the current serving cell and the NTN cell.

[0245] In some embodiments, the first information may include: area information and event information corresponding to the area information.

[0246] The area information indicates the area covered by the NTN cell; and the time information corresponding to the area information is used to determine a duration during which the area covered by the NTN cell is covered by the NTN cell.

[0247] Step S2102: The terminal determines whether the neighboring cell includes an NTN cell according to the first information.

[0248] In some embodiments, the terminal determines whether the neighboring cell includes an NTN cell according to the first information, including at least one of the following:

[0249] Before reaching the start time indicated by the first time information, determining that the neighboring cells do not include the NTN cell;

[0250] After the start time indicated by the first time information is reached, it is determined that the neighboring cell includes the NTN cell.

[0251] In some embodiments, the terminal determines whether the neighboring cell includes an NTN cell according to the first information, including at least one of the following:

[0252] Before reaching the expiration time indicated by the second time information, determining that the neighboring cell includes the NTN cell;

[0253] After the expiration time indicated by the second time information is reached, it is determined that the neighboring cells do not include the NTN cell.

[0254] In some embodiments, the terminal determines whether the neighboring cell includes an NTN cell according to the first information, including at least one of the following:

[0255] Before reaching a time point determined by the first offset, determining that the neighboring cells do not include an NTN cell;

[0256] After reaching a time point determined by the first offset, it is determined that the neighboring cell includes an NTN cell.

[0257] In some embodiments, the terminal determines whether the neighboring cell includes an NTN cell according to the first information, including at least one of the following:

[0258] Before reaching a time point determined by the second offset, determining that the neighboring cell includes the NTN cell;

[0259] After reaching a time point determined by the second offset, it is determined that the neighboring cells do not include an NTN cell.

[0260] In some embodiments, the terminal may determine whether the neighboring cell includes an NTN cell according to the first information when the measurement value of the serving cell meets the measurement criterion.

[0261] It can be understood that when the measurement value of the terminal in the serving cell meets the measurement criteria, that is, when the terminal determines that neighboring cell measurement is required, it determines whether the neighboring cell includes an NTN cell based on the first information received in advance, thereby determining whether the frequency of the NTN cell needs to be measured.

[0262] In some embodiments, the terminal may determine whether to measure the NTN frequency, the frequency of the NTN cell, or the frequency of the NTN satellite based on the first information when the measurement value of the serving cell meets the measurement criteria.

[0263] Exemplarily, the measurement criterion is a measurement criterion of a neighboring cell. Exemplarily, the measurement criterion includes at least one of the following:

[0264] Criteria for measuring co-frequency neighboring cells;

[0265] Criteria for measuring inter-frequency neighboring cells;

[0266] Criteria for measuring heterogeneous cells.

[0267] The NTN cell may be a same-frequency neighbor cell, a different-frequency neighbor cell, or a different-system neighbor cell of the terminal's current serving cell. For example, not measuring the frequency of the NTN cell here may at least include: not measuring different-frequency NTN neighbor cells, and / or not measuring different-system NTN neighbor cells.

[0268] Step S2103: The terminal determines whether to measure the NTN cell.

[0269] In some embodiments, the terminal may be in different communication states, for example, the terminal may be in an idle state, a connected state, or an inactive state.

[0270] In some embodiments, the terminal determining whether to measure the NTN cell may include: the terminal determining whether to measure the frequency of the NTN cell, or the terminal determining whether to measure the NTN frequency.

[0271] In some embodiments, the neighboring cells do not include an NTN cell, and it is determined not to measure the frequency of the NTN cell.

[0272] It is understandable that, if the neighboring cells do not include an NTN cell, even if the terminal searches according to the frequency of the NTN cell, it will not be able to find the reference signal of the NTN cell. Based on this, the terminal may not measure the frequency of the NTN cell when the neighboring cells do not include the NTN cell, thereby reducing unnecessary measurements and lowering the power consumption of the terminal. That is, when the terminal's measurement value in the serving cell meets the measurement criteria, if the neighboring cells do not include an NTN cell, the terminal does not measure the frequency of the NTN cell or does not measure the NTN frequency.

[0273] In some embodiments, the neighboring cell includes the NTN cell and the frequency priority of the NTN cell is higher than the frequency priority of the serving cell, and the terminal determines to measure the frequency of the NTN cell.

[0274] It is worth noting that, when the neighboring cells include an NTN cell and the frequency priority of the NTN cell is higher than the frequency priority of the serving cell, the terminal should perform measurement on the frequency of the NTN cell with higher priority.

[0275] In some embodiments, the neighboring cells do not include an NTN cell and the frequency priority of the NTN cell is higher than the frequency priority of the serving cell, and the terminal determines not to measure the frequency of the NTN cell.

[0276] It is understandable that, under normal circumstances, for neighboring cells whose frequency priority is higher than that of the serving cell, the terminal should measure the neighboring cell with the higher priority. However, considering the high mobility of NTN cells, if the neighboring cells do not include NTN cells, even if the frequency priority of the NTN cell is higher than that of the serving cell, the terminal may not measure the frequency of the NTN cell, thereby reducing unnecessary measurements and lowering power consumption.

[0277] In some embodiments, the neighboring cell does not include an NTN cell and the frequency information of the redirected cell configured by the network device includes the frequency of the NTN cell, and the terminal does not measure the frequency of the NTN cell.

[0278] It is understandable that, under normal circumstances, for redirected cells configured by network equipment, the terminal should measure the frequency of the redirected cell. However, considering the high mobility of NTN cells, if the neighboring cells do not include NTN cells, even if the NTN cell is a redirected cell configured by the network equipment, the terminal does not need to measure the frequency of the NTN cell, thereby reducing unnecessary measurements and lowering power consumption.

[0279] In some embodiments, the neighboring cells do not include the NTN cell, and the terminal determines not to measure the frequency of the NTN cell when the measurement value of the serving cell meets a measurement criterion.

[0280] It should be noted that if the measured value of the serving cell meets the measurement criteria, it indicates that the network status of the terminal's current serving cell is poor. To ensure reliable communication for the terminal, the frequency of neighboring cells can be measured to determine a cell with better network status from among the neighboring cells for access. If the neighboring cells do not include an NTN cell, it means that the NTN cell cannot provide signal coverage for the terminal's area, and the terminal does not need to measure the frequency of the NTN cell.

[0281] In some embodiments, the neighboring cell includes an NTN cell and the frequency information of the redirected cell configured by the network device includes the frequency of the NTN cell, and the terminal measures the frequency of the NTN cell.

[0282] It can be understood that, under normal circumstances, for the redirected cell configured by the network device, the frequency of the redirected cell is a high-priority frequency. Therefore, when the neighboring cell includes an NTN cell, if the frequency information of the redirected cell configured by the network device includes the frequency of the NTN cell, the terminal needs to measure the frequency of the NTN cell to quickly reselect to the NTN cell.

[0283] In some embodiments, the method further comprises:

[0284] The neighboring cell includes the NTN cell, and the terminal determines to measure the frequency of the NTN cell when the measurement value of the serving cell meets a measurement criterion.

[0285] It should be noted that if the measurement value of the serving cell meets the measurement criteria, it indicates that the network status of the terminal's current serving cell is poor. In order to ensure reliable communication of the terminal, the frequency points of the neighboring cells can be measured to determine the cell with better network status from the neighboring cells for access.

[0286] When the neighboring cells include an NTN cell and the measurement value of the serving cell meets the measurement criteria, the terminal may measure the frequency of the NTN cell.

[0287] It is understandable that the inclusion of the NTN cell among the neighboring cells indicates that the NTN cell can provide signal coverage for the area where the terminal is located. In this case, the terminal can measure the frequency of the NTN cell to determine whether it needs to access the NTN cell.

[0288] In some embodiments, the neighboring cell includes the NTN cell, and the terminal determines to measure the frequency of the NTN cell when the measurement value of the serving cell meets the measurement criterion, including at least one of the following:

[0289] When the frequency information of the redirected cell configured by the network device includes the frequency of the NTN cell and the neighboring cell includes the NTN cell and the measurement criteria are met, measuring the frequency of the NTN cell;

[0290] When the frequency priority of the NTN cell is lower than or equal to the frequency priority of the serving cell and the neighboring cell includes the NTN cell and meets the measurement criterion, the frequency of the NTN cell is measured.

[0291] It should be noted that the network device can configure the frequency information of the redirection cell for the terminal when the terminal is in the connected state. It is worth noting that the frequency information of the redirection cell includes one or more candidate frequencies. The terminal can measure the one or more candidate frequencies configured by the network device to select a suitable cell to reside in from the multiple redirection cells specified by the network device.

[0292] When the neighboring cell includes an NTN cell and the measurement value of the serving cell meets the measurement criteria, if the frequency information of the redirected cell configured by the network device includes the frequency of the NTN cell, the terminal should measure the frequency of the NTN cell.

[0293] For an NTN cell whose frequency priority is lower than or equal to the frequency priority of the serving cell, the terminal measures the frequency of the NTN cell if the neighboring cell includes the NTN cell and the measurement value of the serving cell meets the measurement criteria.

[0294] It is understandable that when the neighboring cell includes an NTN cell, since the frequency priority of the NTN cell is lower than or equal to the frequency priority of the serving cell, the terminal only needs to measure the frequency of the NTN cell with equal or lower priority if the measurement value of the serving cell meets the measurement criteria, that is, the network status of the serving cell is poor. If the measurement value of the serving cell does not meet the measurement criteria, that is, the network status of the serving cell is better, the terminal does not need to measure the frequency of the NTN cell with equal or lower priority.

[0295] In some embodiments, when the frequency priority of the NTN cell is lower than or equal to the frequency priority of the serving cell and the neighboring cells do not include the NTN cell and the measurement criteria are met, the frequency of the NTN cell is not measured.

[0296] When the measurement value of the serving cell meets the measurement criteria and the frequency priority of the NTN cell is lower than or equal to the frequency priority of the serving cell, if the neighboring cell does not include the NTN cell, the terminal may not measure the frequency of the NTN cell.

[0297] In some embodiments, the neighboring cell includes the NTN cell and the frequency information of the redirected cell configured by the network device includes the frequency of the NTN cell, and the terminal determines to measure the frequency of the NTN cell when the measurement value of the serving cell does not meet the measurement criteria.

[0298] When a neighboring cell includes an NTN cell, the terminal generally does not need to measure the frequency of the neighboring cell (including the NTN cell) if the measurement value of the serving cell does not meet the measurement criteria. Unless the frequency information of the redirected cell configured by the network device includes the frequency of the NTN cell, the terminal needs to measure the frequency of the redirected NTN cell configured by the network device.

[0299] In some embodiments, the neighboring cell includes the NTN cell and the frequency information of the redirected cell configured by the network device includes the frequency of the NTN cell, and the terminal determines to measure the frequency of the NTN cell when the measurement value of the serving cell does not meet the measurement criterion, including:

[0300] The frequency priority of the NTN cell is lower than or equal to the frequency priority of the serving cell and the frequency information of the redirected cell includes the frequency of the NTN cell. When the neighboring cell includes the NTN cell and the measurement value of the serving cell does not meet the measurement criteria, the terminal measures the frequency of the NTN cell.

[0301] For NTN cells whose frequency priority is lower than or equal to that of the serving cell, the terminal generally does not need to measure the frequency of the NTN cell if the neighboring cell includes the NTN cell and the measurement value of the serving cell does not meet the measurement criteria. Unless the frequency signal of the redirected cell configured by the network device includes the frequency of the NTN cell, the terminal needs to measure the frequency of the redirected NTN cell configured by the network device.

[0302] In some embodiments, the measurement criteria include at least one of the following:

[0303] Measurement criteria for cell reselection;

[0304] Measurement criteria for cell selection.

[0305] In some embodiments, the measurement criteria for cell reselection may include at least one of the following:

[0306] Measurement criteria for co-frequency measurements;

[0307] Measurement criteria for inter-frequency measurements;

[0308] Measurement criteria for heterogeneous system measurements.

[0309] It is worth noting that when the serving cell currently accessed by the terminal is an NTN cell, when the measurement value of the terminal in the serving cell meets the measurement criteria of the same-frequency measurement and the neighboring cell includes an NTN cell of the same frequency, the terminal can measure the frequency of the NTN cell of the same frequency.

[0310] When the serving cell currently accessed by the terminal is an NTN cell, if the measurement value of the terminal in the serving cell meets the measurement criteria of the inter-frequency measurement and the neighboring cell includes an NTN cell of an inter-frequency, the terminal can measure the frequency of the NTN cell of the inter-frequency.

[0311] When the serving cell currently accessed by the terminal is a TN cell, and the measurement value of the terminal in the serving cell meets the measurement criteria of the inter-system measurement and the neighboring cells include an NTN cell, the terminal can measure the frequency of the NTN cell.

[0312] In some embodiments, the term "information" can be interchangeable with terms such as "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "field", and "data".

[0313] In some embodiments, the term "send" can be interchanged with terms such as "transmit", "report", and "transmit".

[0314] The measurement method involved in the embodiment of the present disclosure may include at least one of steps S2101 to S2103. For example, step S2102 and step S2103 may be implemented as independent embodiments, but are not limited thereto.

[0315] In some embodiments, step S2101 is optional, and one or more of these steps may be omitted or replaced in different embodiments. It is understood that the terminal can independently determine whether the neighboring cell includes an NTN cell based on the ephemeris information, without the network device sending the first information to the terminal.

[0316] FIG2B is a flow chart of a measurement method according to an exemplary embodiment. As shown in FIG2B , the embodiment of the present disclosure relates to a measurement method for a communication system 100, the method comprising:

[0317] Step S2201: The terminal determines whether the neighboring cells include an NTN cell.

[0318] The terminal involved in the embodiments of the present disclosure may be, but is not limited to, a mobile phone, a wearable device, a vehicle-mounted terminal and / or a road side unit (RSU).

[0319] In some embodiments, the serving cell where the terminal currently resides may be a terrestrial network (TN) cell.

[0320] It should be noted that because NTN network equipment is typically deployed on aircraft, drones, or satellites, it is highly mobile. The coverage of NTN network equipment will constantly change as it moves. This can cause an NTN cell that originally provided signal coverage to devices in the terminal's area to move out of the terminal's area after a period of time and no longer provide signal coverage to devices in the terminal's area. Alternatively, an NTN cell that originally did not provide signal coverage to devices in the terminal's area may, after a period of time, be able to provide signal coverage to devices in the terminal's area.

[0321] Therefore, when the terminal performs frequency measurement on the neighboring cells, it needs to first determine whether the neighboring cells of the terminal include the NTN cell, so as to determine whether the frequency of the NTN cell needs to be measured, thereby reducing unnecessary frequency measurement of the NTN cell and reducing the power consumption of the terminal.

[0322] In some embodiments, the terminal determines whether a neighboring cell includes the NTN cell based on a distance between the terminal and a coverage area of ​​the NTN cell.

[0323] In some embodiments, the terminal determines whether the neighboring cell includes an NTN cell, including:

[0324] Acquire second information, where the second information is used to indicate a position and / or speed of a satellite of the NTN cell;

[0325] Determine whether the neighboring cell includes the NTN cell according to the second information.

[0326] It should be noted that the terminal can obtain second information indicating the position and / or speed of the satellite of the NTN cell, and determine whether the terminal's neighboring cell includes the NTN cell based on the second information, thereby reducing unnecessary measurements of the frequency of the NTN cell when the neighboring cell does not include the NTN cell.

[0327] In some embodiments, the second information may include ephemeris information of the satellite and / or positioning, velocity and timing (PVT) information of the satellite.

[0328] In some embodiments, the ephemeris information of the satellite includes but is not limited to at least one of the following information: satellite coordinates; satellite orbit altitude; position information of the sub-satellite point; satellite orbit plane inclination; right ascension of the ascending node; length of the major semi-axis of the satellite orbit ellipse; eccentricity of the satellite orbit ellipse; satellite perigee angular distance; and time when the satellite passes perigee.

[0329] In some embodiments, the PVT information of a satellite refers to at least one of position information, velocity information, and timing information of the satellite.

[0330] It is understandable that the terminal can determine the distance between the coverage area of ​​the NTN cell and the terminal based on the ephemeris information and / or PVT information of the satellite corresponding to the NTN cell, and thus determine whether the terminal's neighboring cells include the NTN cell based on the distance.

[0331] Step S2202: The terminal determines whether to measure the frequency of the NTN cell.

[0332] In some embodiments, the optional implementation of step S2202 can refer to the optional implementation of step S2103 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

[0333] FIG3A is a flow chart of a measurement method according to an exemplary embodiment. As shown in FIG3A , the embodiment of the present disclosure relates to a measurement method, which is executed by terminal 101 and includes:

[0334] Step S3101: Receive first information sent by a network device.

[0335] In some embodiments, the optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

[0336] Step S3102: Determine whether the neighboring cell includes an NTN cell according to the first information.

[0337] In some embodiments, the optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

[0338] Step S3103: Determine whether to measure the frequency of the NTN cell.

[0339] In some embodiments, the optional implementation of step S3103 can refer to the optional implementation of step S2103 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

[0340] The measurement method involved in the embodiment of the present disclosure may include at least one of steps S3101 to S3103. For example, step S3102 and step S3103 may be implemented as independent embodiments, but are not limited thereto.

[0341] In some embodiments, step S3101 is optional, and one or more of these steps may be omitted or replaced in different embodiments. It is understood that the terminal can independently determine whether a neighboring cell includes an NTN cell based on the distance between the terminal and the coverage area of ​​the NTN cell, without the network device sending the first information to the terminal.

[0342] FIG3B is a flow chart of a measurement method according to an exemplary embodiment. As shown in FIG3B , the embodiment of the present disclosure relates to a measurement method, which is executed by terminal 101 and includes:

[0343] Step S3201: Determine whether the neighboring cells include an NTN cell.

[0344] In some embodiments, the optional implementation of step S3201 can refer to the optional implementation of step S2201 in Figure 2B and other related parts of the embodiment involved in Figure 2B, which will not be repeated here.

[0345] Step S3202: Determine whether to measure the frequency of the NTN cell.

[0346] In some embodiments, the optional implementation of step S3202 can refer to the optional implementation of step S2202 in Figure 2B and other related parts of the embodiment involved in Figure 2B, which will not be repeated here.

[0347] FIG3C is a flow chart of a measurement method according to an exemplary embodiment. As shown in FIG3C , the embodiment of the present disclosure relates to a measurement method, which is executed by terminal 101 and includes:

[0348] Step S3301: Determine whether the neighboring cell includes a non-terrestrial network NTN cell;

[0349] Step S3302: The neighboring cells do not include the NTN cell, and it is determined not to measure the frequency of the NTN cell.

[0350] In some embodiments, the method further comprises:

[0351] Receive first information sent by a network device of a serving cell; the first information is used by the terminal to determine whether the neighboring cell includes the NTN cell.

[0352] In some embodiments, the first information includes:

[0353] The time information is used by the terminal to determine the time when the neighboring cell includes each of the NTN cells.

[0354] In some embodiments, the time information includes at least one of first time information, second time information, and third time information;

[0355] The first time information is associated with one or more NTN cells, and the first time information is used by the terminal to determine the time when the neighboring cell includes the first cell; the first cell is the NTN cell associated with the first time information;

[0356] The second time information is associated with one or more satellites, and the second time information is used by the terminal to determine when a neighboring cell includes a second cell; the second cell is an NTN cell corresponding to the satellite associated with the second time information; and one of the satellites carries wireless devices of one or more NTN cells;

[0357] The third time information is associated with one or more NTN frequencies, and the third time information is used by the terminal to determine the time when the neighboring cell includes the third cell; the third cell is the NTN cell corresponding to the NTN frequency associated with the third time information; one NTN frequency can be used for one or more NTN cells.

[0358] In some embodiments, the first information includes multiple time information; different time information is associated with different NTN cells, or different time information is associated with different satellites, or different time information is associated with different NTN frequencies.

[0359] In some embodiments, the time information includes at least one of the following:

[0360] First time information, indicating the starting time when the neighboring cell includes the NTN cell;

[0361] Second time information, indicating a cutoff time at which the neighboring cell includes the NTN cell;

[0362] A first offset indicates a time difference between a reference time and a start time of the neighboring cells including the NTN cell;

[0363] The second offset indicates a time difference between a reference time and a termination time of the neighboring cells including the NTN cell.

[0364] In some embodiments, the first time information is used to indicate the starting time when the neighboring cell earliest includes the NTN cell of the first frequency; or, the first time information is used to indicate the starting time when the neighboring cell earliest includes the first satellite; the first satellite carries one or more wireless devices of the NTN cell.

[0365] In some embodiments, the first information further includes:

[0366] Frequency information is used to indicate the frequency used by the NTN cell.

[0367] In some embodiments, determining whether the neighboring cell includes a non-terrestrial network (NTN) cell comprises at least one of the following:

[0368] Before reaching the starting time, determining that the neighboring cells do not include the NTN cell;

[0369] After reaching the starting time, it is determined that the neighboring cell includes the NTN cell.

[0370] In some embodiments, the method further comprises:

[0371] The neighboring cells include the NTN cell, and the terminal determines to measure the frequency of the NTN cell when the measurement value of the serving cell meets a measurement criterion.

[0372] In some embodiments, the neighboring cell includes the NTN cell, and the terminal determines to measure the frequency of the NTN cell when the measurement value of the serving cell meets the measurement criterion, including at least one of the following:

[0373] When the frequency information of the redirected cell configured by the network device includes the frequency of the NTN cell and the neighboring cell includes the NTN cell and the measurement criteria are met, measuring the frequency of the NTN cell;

[0374] When the frequency priority of the NTN cell is lower than or equal to the frequency priority of the serving cell and the neighboring cell includes the NTN cell and meets the measurement criterion, the frequency of the NTN cell is measured.

[0375] In some embodiments, the method further comprises:

[0376] The neighboring cell includes the NTN cell and the frequency information of the redirected cell configured by the network device includes the frequency of the NTN cell. The terminal determines to measure the frequency of the NTN cell when the measurement value of the serving cell does not meet the measurement criterion.

[0377] In some embodiments, the neighboring cell includes the NTN cell and the frequency information of the redirected cell configured by the network device includes the frequency of the NTN cell, and the terminal determines to measure the frequency of the NTN cell when the measurement value of the serving cell does not meet the measurement criterion, including:

[0378] The frequency priority of the NTN cell is lower than or equal to the frequency priority of the serving cell and the frequency information of the redirected cell includes the frequency of the NTN cell. When the neighboring cell includes the NTN cell and the measurement value of the serving cell does not meet the measurement criteria, the terminal measures the frequency of the NTN cell.

[0379] In some embodiments, the neighboring cell does not include the NTN cell, and determining not to measure the frequency of the NTN cell includes one of the following:

[0380] The neighboring cell does not include the NTN cell, and the terminal determines not to measure the frequency of the NTN cell when the measurement value of the serving cell meets the measurement criterion;

[0381] The neighboring cell does not include the NTN cell and the frequency priority of the NTN cell is higher than the frequency priority of the serving cell, and the terminal does not measure the frequency of the NTN cell;

[0382] The neighboring cell does not include the NTN cell and the frequency information of the redirected cell configured by the network device includes the frequency of the NTN cell, and the terminal does not measure the frequency of the NTN cell.

[0383] In some embodiments, the neighboring cell does not include the NTN cell, and the terminal determines not to measure the frequency of the NTN cell when the measurement value of the serving cell meets the measurement criterion, including one of the following:

[0384] When the frequency priority of the NTN cell is lower than or equal to the frequency priority of the serving cell and the neighboring cells do not include the NTN cell and the measurement criteria are met, the frequency of the NTN cell is not measured.

[0385] In some embodiments, the measurement criteria include at least one of the following:

[0386] Measurement criteria for cell reselection;

[0387] Measurement criteria for cell selection.

[0388] In some embodiments, the first information is carried in a system information block (SIB).

[0389] FIG4 is a flow chart of a measurement method according to an exemplary embodiment. As shown in FIG4 , the embodiment of the present disclosure relates to a measurement method, which is executed by the network device 102 and includes:

[0390] Step S4101: Send first information to the terminal.

[0391] In some embodiments, the optional implementation of step S4101 can refer to the optional implementation of step S2101 in Figure 2A and other related parts of the embodiment involved in Figure 2A, which will not be repeated here.

[0392] FIG5 is an interactive diagram illustrating a measurement method according to an exemplary embodiment. As shown in FIG5 , the embodiment of the present disclosure relates to a measurement method for a communication system 100, and the method includes one of the following steps:

[0393] Step S5101: The network device sends first information to the terminal.

[0394] In some embodiments, the first information is used by the terminal to determine whether a neighboring cell includes the NTN cell.

[0395] Step S5102: The terminal determines whether the neighboring cells include a non-terrestrial network NTN cell.

[0396] Step S5103: The neighboring cells do not include the NTN cell, and the terminal determines not to measure the frequency of the NTN cell.

[0397] In some embodiments, the above method may include the methods of the above-mentioned communication system side, terminal side, network device side, etc. embodiments, which will not be repeated here.

[0398] In some cases, when a terminal performs cell reselection and the measurement value of the serving cell meets the measurement conditions, the terminal will measure the intra-frequency, inter-frequency, and inter-RAT frequencies. Considering that NR NTN satellites move, the terminal's neighboring cells may not always contain NR NTN cells. If the terminal still measures the frequency of the NR NTN cell, it will result in unnecessary measurements and increase the terminal's power consumption.

[0399] When the neighboring cell does not include an NR NTN cell, the terminal does not measure the frequency of the NR NTN cell to reduce the power consumption of the terminal.

[0400] System messages can provide time information of NR NTN cells.

[0401] The time information can be configured per cell, i.e., the time information of a neighboring cell can correspond to one NR (New Radio Network) (NR) or NTN (New Telecommunications Network) cell. Alternatively, the time information can be configured per satellite, i.e., the time information of a neighboring cell can correspond to one satellite. Alternatively, the time information can be configured per frequency, i.e., the time information of a neighboring cell can correspond to one frequency.

[0402] In some embodiments, a method is provided for a terminal to determine whether to measure an NR NTN frequency point based on a distance.

[0403] The terminal receives the time information and / or time threshold of the neighboring cell sent by the network.

[0404] The network can provide multiple time information, for example, each time information in the multiple time information is associated with an NR NTN cell; or each time is associated with a satellite.

[0405] The network device provides a time information, which may be the time information of the earliest arriving neighboring cell on a certain frequency point, or the time information of the earliest arriving satellite.

[0406] In some embodiments, before the time of any satellite or any NR NTN cell on a certain frequency, the terminal may choose not to measure the frequency of the NR NTN cell.

[0407] In some embodiments, before the time when a certain NR NTN frequency point is associated, the terminal may choose not to measure the NR NTN frequency point.

[0408] In some embodiments, when arriving at any satellite or any NR NTN cell on a certain frequency, the UE should measure the frequency of the NR NTN cell.

[0409] In some embodiments, when the measurement criteria for cell reselection are met, the terminal may determine whether to measure the frequency of the NR NTN cell based on the time information of the NR NTN cell.

[0410] In some embodiments, when the measurement criteria for cell reselection are not met, if the frequency of the NR NTN cell is configured for redirection, the terminal can determine whether to measure the frequency of the NR NTN cell based on the time information of the NR NTN cell.

[0411] In some embodiments, when the frequency priority of the NR NTN cell is lower than or equal to the frequency priority of the serving cell, the terminal determines whether to measure the frequency of the NR NTN cell based on the time information of the NR NTN cell when the measurement criteria for cell reselection are met.

[0412] When the frequency priority of the NR NTN cell is lower than or equal to the frequency priority of the serving cell, the terminal does not meet the measurement criteria for cell reselection. If the frequency of the NR NTN cell is configured for redirection, the terminal can determine whether to measure the frequency of the NR NTN cell based on the time information of the NR NTN cell.

[0413] In some embodiments, the time information and / or time threshold of the NR NTN neighboring cell may be sent via a system message. The system message includes the ephemeris information of the NR NTN neighboring cell.

[0414] The embodiments of the present disclosure also provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device or a core network device) in any of the above methods.

[0415] It should be understood that the division of the various units or modules in the above devices is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above devices, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0416] In the embodiments of the present disclosure, a processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of a hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document to implement the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0417] FIG6A is a schematic diagram showing the structure of a terminal according to an exemplary embodiment. As shown in FIG6A , the terminal includes:

[0418] The determination module 6101 is configured to determine whether the neighboring cells include a non-terrestrial network NTN cell; if the neighboring cells do not include the NTN cell, determine not to measure the frequency of the NTN cell.

[0419] In some embodiments, the determination module may be used for the terminal to execute steps related to information determination in any measurement method.

[0420] In some embodiments, the terminal may further include: a processing module and / or a receiving module.

[0421] In some embodiments, the processing module may be used by the terminal to execute steps related to information processing in any measurement method.

[0422] In some embodiments, the receiving module may correspond to a network interface and / or a transceiver antenna of the terminal.

[0423] In some embodiments, the receiving module may be used by the terminal to execute steps related to information reception in any measurement method.

[0424] In some embodiments, the receiving module is configured to receive first information sent by a network device of a serving cell; the first information is used by the terminal to determine whether the neighboring cell includes the NTN cell.

[0425] In some embodiments, the first information includes:

[0426] The time information is used by the terminal to determine the time when the neighboring cell includes each of the NTN cells.

[0427] In some embodiments, the time information includes at least one of first time information, second time information, and third time information;

[0428] The first time information is associated with one or more NTN cells, and the first time information is used by the terminal to determine the time when the neighboring cell includes the first cell; the first cell is the NTN cell associated with the first time information;

[0429] The second time information is associated with one or more satellites, and the second time information is used by the terminal to determine when a neighboring cell includes a second cell; the second cell is an NTN cell corresponding to the satellite associated with the second time information; and one of the satellites carries wireless devices of one or more NTN cells;

[0430] The third time information is associated with one or more NTN frequencies, and the third time information is used by the terminal to determine the time when the neighboring cell includes the third cell; the third cell is the NTN cell corresponding to the NTN frequency associated with the third time information; one NTN frequency can be used for one or more NTN cells.

[0431] In some embodiments, the first information includes multiple time information; different time information is associated with different NTN cells, or different time information is associated with different satellites, or different time information is associated with different NTN frequencies.

[0432] In some embodiments, the time information includes at least one of the following:

[0433] First time information, indicating the starting time when the neighboring cell includes the NTN cell;

[0434] Second time information, indicating a cutoff time at which the neighboring cell includes the NTN cell;

[0435] A first offset indicates a time difference between a reference time and a start time of the neighboring cells including the NTN cell;

[0436] The second offset indicates a time difference between a reference time and a termination time of the neighboring cells including the NTN cell.

[0437] In some embodiments, the first time information is used to indicate the starting time when the neighboring cell earliest includes the NTN cell of the first frequency; or, the first time information is used to indicate the starting time when the neighboring cell earliest includes the first satellite; the first satellite carries one or more wireless devices of the NTN cell.

[0438] In some embodiments, the first information further includes:

[0439] Frequency information is used to indicate the frequency used by the NTN cell.

[0440] In some embodiments, the determination module is configured to:

[0441] Before reaching the starting time, determining that the neighboring cells do not include the NTN cell;

[0442] After reaching the starting time, it is determined that the neighboring cell includes the NTN cell.

[0443] In some embodiments, the processing module is configured such that the neighboring cell includes the NTN cell, and the terminal determines to measure the frequency of the NTN cell when the measurement value of the serving cell meets a measurement criterion.

[0444] In some embodiments, the processing module is configured to perform at least one of the following:

[0445] When the frequency information of the redirected cell configured by the network device includes the frequency of the NTN cell and the neighboring cell includes the NTN cell and the measurement criteria are met, measuring the frequency of the NTN cell;

[0446] When the frequency priority of the NTN cell is lower than or equal to the frequency priority of the serving cell and the neighboring cell includes the NTN cell and meets the measurement criterion, the frequency of the NTN cell is measured.

[0447] In some embodiments, the processing module is configured such that the neighboring cell includes the NTN cell and the frequency information of the redirected cell configured by the network device includes the frequency of the NTN cell, and the terminal determines to measure the frequency of the NTN cell when the measurement value of the serving cell does not meet the measurement criteria.

[0448] In some embodiments, the processing module is configured such that the frequency priority of the NTN cell is lower than or equal to the frequency priority of the serving cell and the frequency information of the redirected cell includes the frequency of the NTN cell, and the terminal measures the frequency of the NTN cell when the neighboring cell includes the NTN cell and the measurement value of the serving cell does not meet the measurement criteria.

[0449] In some embodiments, the neighboring cell does not include the NTN cell, and determining not to measure the frequency of the NTN cell includes one of the following:

[0450] The neighboring cell does not include the NTN cell, and the terminal determines not to measure the frequency of the NTN cell when the measurement value of the serving cell meets the measurement criterion;

[0451] The neighboring cell does not include the NTN cell and the frequency priority of the NTN cell is higher than the frequency priority of the serving cell, and the terminal does not measure the frequency of the NTN cell;

[0452] The neighboring cell does not include the NTN cell and the frequency information of the redirected cell configured by the network device includes the frequency of the NTN cell, and the terminal does not measure the frequency of the NTN cell.

[0453] In some embodiments, the neighboring cell does not include the NTN cell, and the terminal determines not to measure the frequency of the NTN cell when the measurement value of the serving cell meets the measurement criterion, including one of the following:

[0454] When the frequency priority of the NTN cell is lower than or equal to the frequency priority of the serving cell and the neighboring cells do not include the NTN cell and the measurement criteria are met, the frequency of the NTN cell is not measured.

[0455] In some embodiments, the measurement criteria include at least one of the following:

[0456] Measurement criteria for cell reselection;

[0457] Measurement criteria for cell selection.

[0458] In some embodiments, the first information is carried in a system information block (SIB).

[0459] In some embodiments, the first information further includes:

[0460] The first indication is used to indicate the mobility status of the satellite corresponding to the NTN cell.

[0461] FIG6B is a schematic diagram showing the structure of a network device according to an exemplary embodiment. As shown in FIG6B , the network device includes:

[0462] The sending module is configured to send first information to the terminal; the first information is used by the terminal to determine whether the neighboring cell includes the NTN cell.

[0463] In some embodiments, the sending module may be used by the network device to execute steps related to information sending in any measurement method.

[0464] In some embodiments, the terminal may further include: a processing module and / or a receiving module.

[0465] In some embodiments, the processing module may be used by the network device to execute steps related to information processing in any measurement method.

[0466] In some embodiments, the receiving module may correspond to a network interface and / or a transceiver antenna of a network device.

[0467] In some embodiments, the receiving module may be used by the network device to perform steps related to information reception in any measurement method.

[0468] In some embodiments, the first information includes:

[0469] The time information is used by the terminal to determine the time when the neighboring cell includes each of the NTN cells.

[0470] In some embodiments, the time information includes at least one of first time information, second time information, and third time information;

[0471] The first time information is associated with one or more NTN cells, and the first time information is used by the terminal to determine the time when the neighboring cell includes the first cell; the first cell is the NTN cell associated with the first time information;

[0472] The second time information is associated with one or more satellites, and the second time information is used by the terminal to determine when a neighboring cell includes a second cell; the second cell is an NTN cell corresponding to the satellite associated with the second time information; and one of the satellites carries wireless devices of one or more NTN cells;

[0473] The third time information is associated with one or more NTN frequencies, and the third time information is used by the terminal to determine the time when the neighboring cell includes the third cell; the third cell is the NTN cell corresponding to the NTN frequency associated with the third time information; one NTN frequency can be used for one or more NTN cells.

[0474] In some embodiments, the first information includes multiple time information; different time information is associated with different NTN cells, or different time information is associated with different satellites, or different time information is associated with different NTN frequencies.

[0475] In some embodiments, the time information includes at least one of the following:

[0476] First time information, indicating the starting time when the neighboring cell includes the NTN cell;

[0477] Second time information, indicating a cutoff time at which the neighboring cell includes the NTN cell;

[0478] A first offset indicates a time difference between a reference time and a start time of the neighboring cells including the NTN cell;

[0479] The second offset indicates a time difference between a reference time and a termination time of the neighboring cells including the NTN cell.

[0480] In some embodiments, the first time information is used to indicate the starting time when the neighboring cell earliest includes the NTN cell of the first frequency; or, the first time information is used to indicate the starting time when the neighboring cell earliest includes the first satellite; the first satellite carries one or more wireless devices of the NTN cell.

[0481] In some embodiments, the first information further includes:

[0482] Frequency information is used to indicate the frequency used by the NTN cell.

[0483] In some embodiments, the first information is carried in a system information block (SIB).

[0484] In some embodiments, the first information further includes:

[0485] The first indication is used to indicate the mobility status of the satellite corresponding to the NTN cell.

[0486] Figure 7A is a schematic diagram of the structure of a communication device 7100 according to an exemplary embodiment. Communication device 7100 can be a network device (e.g., an access network device or a core network device), a terminal (e.g., a user equipment), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above measurement methods. Communication device 7100 can be used to implement the measurement method described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0487] As shown in Figure 7A, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The processor 7101 is used to call instructions to enable the communication device 7100 to perform any of the above communication methods.

[0488] In some embodiments, the communication device 7100 further includes one or more memories 7102 for storing instructions. Optionally, all or part of the memories 7102 may be located outside the communication device 7100.

[0489] In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the communication steps such as sending and receiving in the above method are performed by the transceiver 7103, and the other steps are performed by the processor 7101.

[0490] In some embodiments, a transceiver may include a receiver and a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0491] Optionally, the communication device 7100 further includes one or more interface circuits 7104, which are connected to the memory 7102. The interface circuits 7104 may be configured to receive signals from the memory 7102 or other devices, and may be configured to send signals to the memory 7102 or other devices. For example, the interface circuits 7104 may read instructions stored in the memory 7102 and send the instructions to the processor 7101.

[0492] The communication device 7100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 7100 described in the present disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: (1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0493] FIG7B is a schematic diagram showing the structure of a chip 7200 according to an exemplary embodiment. If the communication device 7100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 7200 shown in FIG7B , but the present invention is not limited thereto.

[0494] The chip 7200 includes one or more processors 7201 , and the processor 7201 is used to call instructions so that the chip 7200 executes any of the above communication methods.

[0495] In some embodiments, chip 7200 further includes one or more interface circuits 7202, which are connected to memory 7203. Interface circuit 7202 can be used to receive signals from memory 7203 or other devices, and can be used to send signals to memory 7203 or other devices. For example, interface circuit 7202 can read instructions stored in memory 7203 and send the instructions to processor 7201. Optionally, the terms interface circuit, interface, transceiver pin, and transceiver are interchangeable.

[0496] In some embodiments, the chip 7200 further includes one or more memories 7203 for storing instructions. Alternatively, all or part of the memories 7203 may be located outside the chip 7200.

[0497] The present disclosure also provides a storage medium having instructions stored thereon, which, when executed on the communication device 7100, causes the communication device 7100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but may also be a transient storage medium.

[0498] The present disclosure further provides a program product, which, when executed by the communication device 7100, enables the communication device 7100 to perform any of the above communication methods. Optionally, the program product is a computer program product.

[0499] The present disclosure also provides a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but may also be a transient storage medium.

[0500] The present disclosure further provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above communication methods. Optionally, the program product is a computer program product.

[0501] The present disclosure also provides a computer program, which, when executed on a computer, enables the computer to execute any one of the above communication methods.

[0502] Other embodiments of the present invention will readily occur to those skilled in the art after considering the specification and practicing the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the invention that follow from the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the invention being indicated by the following claims.

[0503] It should be understood that the present invention is not limited to the exact construction described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A measurement method, wherein: The method is executed by a terminal, and includes: Determine whether the neighboring cells include a non-terrestrial network NTN cell; The neighboring cells do not include the NTN cell, and it is determined not to measure the frequency of the NTN cell.

2. The method according to claim 1, wherein The method further comprises: Receive first information sent by a network device of a serving cell; the first information is used by the terminal to determine whether the neighboring cell includes the NTN cell.

3. The method according to claim 2, wherein: The first information includes: The time information is used by the terminal to determine the time when the neighboring cell includes the NTN cell.

4. The method according to claim 3, wherein: The time information includes at least one of the first time information, the second time information and the third time information; The first time information is associated with one or more NTN cells, and the first time information is used by the terminal to determine the time when the neighboring cell includes the first cell; The first cell is an NTN cell associated with the first time information; The second time information is associated with one or more satellites, and the second time information is used by the terminal to determine the time when the neighboring cell includes the second cell; The second cell is an NTN cell corresponding to the satellite associated with the second time information; one of the satellites carries one or more wireless devices of the NTN cell; The third time information is associated with one or more NTN frequency points, and the third time information is used by the terminal to determine the time when the neighboring cell includes the third cell; The third cell is an NTN cell corresponding to the NTN frequency associated with the third time information; one NTN frequency may be used for one or more NTN cells.

5. The method according to claim 3 or 4, wherein: The first information includes multiple time information; different time information is associated with different NTN cells, or different time information is associated with different satellites, or different time information is associated with different NTN frequencies.

6. The method according to any one of claims 3 to 5, wherein: The time information includes at least one of the following: First time information, indicating the starting time when the neighboring cell includes the NTN cell; Second time information, indicating a cutoff time at which the neighboring cell includes the NTN cell; A first offset indicates a time difference between a reference time and a start time of the neighboring cells including the NTN cell; The second offset indicates a time difference between a reference time and a termination time of the neighboring cells including the NTN cell.

7. The method according to claim 6, wherein: The first time information is used to indicate the starting time when the neighboring cell earliest includes the NTN cell of the first frequency; or, the first time information is used to indicate the starting time when the neighboring cell earliest includes the first satellite; the first satellite carries one or more wireless devices of the NTN cell.

8. The method according to any one of claims 2 to 7, wherein: The first information also includes: Frequency information is used to indicate the frequency used by the NTN cell.

9. The method according to any one of claims 6 to 8, wherein: The determining whether the neighboring cell includes a non-terrestrial network NTN cell includes at least one of the following: Before reaching the starting time, determining that the neighboring cells do not include the NTN cell; After reaching the starting time, it is determined that the neighboring cell includes the NTN cell.

10. The method according to any one of claims 2 to 9, wherein: The method further comprises: The neighboring cells include the NTN cell, and the terminal determines to measure the frequency of the NTN cell when the measurement value of the serving cell meets a measurement criterion.

11. The method according to claim 10, wherein: The neighboring cell includes the NTN cell, and the terminal determines to measure the frequency of the NTN cell when the measurement value of the serving cell meets the measurement criterion, including at least one of the following: When the frequency information of the redirected cell configured by the network device includes the frequency of the NTN cell and the neighboring cell includes the NTN cell and the measurement criteria are met, measuring the frequency of the NTN cell; When the frequency priority of the NTN cell is lower than or equal to the frequency priority of the serving cell and the neighboring cell includes the NTN cell and meets the measurement criterion, the frequency of the NTN cell is measured.

12. The method according to any one of claims 2 to 11, wherein: The method further comprises: The neighboring cell includes the NTN cell and the frequency information of the redirected cell configured by the network device includes the frequency of the NTN cell. The terminal determines to measure the frequency of the NTN cell when the measurement value of the serving cell does not meet the measurement criterion.

13. The method according to claim 12, wherein: The neighboring cell includes the NTN cell, and the frequency information of the redirected cell configured by the network device includes the frequency of the NTN cell, and the terminal determines to measure the frequency of the NTN cell when the measurement value of the serving cell does not meet the measurement criterion, including: The frequency priority of the NTN cell is lower than or equal to the frequency priority of the serving cell and the frequency information of the redirected cell includes the frequency of the NTN cell. When the neighboring cell includes the NTN cell and the measurement value of the serving cell does not meet the measurement criteria, the terminal measures the frequency of the NTN cell.

14. The method according to any one of claims 11 to 13, wherein: The measurement criteria include at least one of the following: Measurement criteria for cell reselection; Measurement criteria for cell selection.

15. The method according to any one of claims 2 to 14, wherein: The first information is carried in a system information block SIB.

16. The method according to any one of claims 2 to 15, wherein: The first information also includes: The first indication is used to indicate the mobility status of the satellite corresponding to the NTN cell.

17. A measurement method, wherein: The method is performed by a network device, and includes: Sending first information to the terminal; the first information is used by the terminal to determine whether the neighboring cell includes the NTN cell.

18. The method according to claim 17, wherein The first information includes: The time information is used by the terminal to determine the time when the neighboring cell includes the NTN cell.

19. The method according to claim 18, wherein The time information includes at least one of the first time information, the second time information and the third time information; The first time information is associated with one or more NTN cells, and the first time information is used by the terminal to determine the time when the neighboring cell includes the first cell; The first cell is an NTN cell associated with the first time information; The second time information is associated with one or more satellites, and the second time information is used by the terminal to determine the time when the neighboring cell includes the second cell; The second cell is an NTN cell corresponding to the satellite associated with the second time information; one of the satellites carries one or more wireless devices of the NTN cell; The third time information is associated with one or more NTN frequency points, and the third time information is used by the terminal to determine the time when the neighboring cell includes the third cell; The third cell is an NTN cell corresponding to the NTN frequency associated with the third time information; one NTN frequency may be used for one or more NTN cells.

20. The method according to claim 18 or 19, wherein The first information includes multiple time information; different time information is associated with different NTN cells, or different time information is associated with different satellites, or different time information is associated with different NTN frequencies.

21. The method according to any one of claims 18 to 20, wherein: The time information includes at least one of the following: First time information, indicating the starting time when the neighboring cell includes the NTN cell; Second time information, indicating a cutoff time at which the neighboring cell includes the NTN cell; A first offset indicates a time difference between a reference time and a start time of the neighboring cells including the NTN cell; The second offset indicates a time difference between a reference time and a termination time of the neighboring cells including the NTN cell.

22. The method according to claim 21, wherein The first time information is used to indicate the starting time when the neighboring cell earliest includes the NTN cell of the first frequency; or, the first time information is used to indicate the starting time when the neighboring cell earliest includes the first satellite; the first satellite carries one or more wireless devices of the NTN cell.

23. The method according to any one of claims 17 to 22, wherein: The first information also includes: Frequency information is used to indicate the frequency used by the NTN cell.

24. The method according to any one of claims 17 to 23, wherein: The first information is carried in a system information block SIB.

25. The method according to any one of claims 17 to 24, wherein The first information also includes: The first indication is used to indicate the mobility status of the satellite corresponding to the NTN cell.

26. A measurement method, wherein: Executed by a communication system, the method includes: The network device sends first information to the terminal; the first information is used by the terminal to determine whether the neighboring cell includes the NTN cell; The terminal determines whether the neighboring cells include a non-terrestrial network NTN cell; The neighboring cells do not include the NTN cell, and the terminal determines not to measure the frequency of the NTN cell.

27. A terminal, wherein: The terminal includes: The determination module is configured to determine whether the neighboring cells include a non-terrestrial network (NTN) cell; if the neighboring cells do not include the NTN cell, the terminal determines not to measure the frequency of the NTN cell.

28. A network device, wherein: The network device includes: The sending module is configured to send first information to the terminal; the first information is used by the terminal to determine whether the neighboring cell includes an NTN cell.

29. A communication system, wherein: The communication system includes a terminal and a network device; the terminal is configured to implement the measurement method according to any one of claims 1 to 16, and the network device is configured to implement the measurement method according to any one of claims 17 to 25.

30. A communication device, wherein: The communication device comprises: one or more processors; The processor is configured to call instructions to enable the communication device to execute the measurement method according to any one of claims 1 to 16 or claims 17 to 25.

31. A storage medium, wherein: The storage medium stores instructions, and when the instructions are executed on a communication device, the communication device executes the measurement method according to any one of claims 1 to 16 or claims 17 to 25.

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