Cell reselection method and device, and storage medium

Abstract

Embodiments of the present application provide a cell reselection method and device, and a storage medium. The method comprises: a network device sends first information to a terminal device, the first information comprising one or more reselection-related configurations; the terminal device accurately performs cell reselection on the basis of the reselection-related configurations. In this way, the cell reselection frequency can be reduced.

Description

A cell reselection method, device and storage medium

[0001] The present application claims priority to the Chinese patent application No. 202410179007.8, filed on February 9, 2024, and entitled "A cell reselection method, device and storage medium", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of communication technology, in particular to a cell reselection method, device and storage medium. BACKGROUND

[0003] In a ground network communication system, when the terminal device moves at a high speed, the terminal device can determine its motion state according to the number of times of cell reselection performed by itself, determine the applicable cell reselection judgment time and cell reselection hysteresis parameters according to the motion state, and determine whether cell reselection is needed according to the cell reselection judgment time and the cell reselection hysteresis parameters.

[0004] In a non-terrestrial network (NTN) communication system, the terminal device cannot determine its motion state according to the mechanism in the ground network communication system, and thus cannot accurately perform cell reselection, which may result in a high frequency of cell reselection. SUMMARY

[0005] Embodiments of the present application provide a cell reselection method, device and storage medium. The terminal device can receive the reselection-related configuration sent by the network device, accurately perform cell reselection based on the reselection-related configuration, and thus reduce the frequency of cell reselection.

[0006] In a first aspect, embodiments of the present application provide a cell reselection method, comprising: receiving first information, the first information comprising one or more reselection-related configurations, the first information being applicable to an Internet of Things terminal device or a non-Internet of Things terminal device; and performing cell reselection according to the first information.

[0007] In a possible implementation, each reselection-related configuration comprises at least one of the following: a first cell reselection judgment time; a first time offset value; a first cell reselection hysteresis parameter; a first hysteresis parameter offset value; a first cell quality offset value; and a first quality parameter offset value.

[0008] In a possible implementation, each reselection-related configuration comprises a plurality of reselection parameter information, and the parameters in each reselection parameter information are applicable to different speeds.

[0009] In a possible implementation, each reselection parameter information includes at least one of the following: a second cell reselection judgment time; a second time offset value; a second cell reselection hysteresis parameter; a second hysteresis parameter offset value; a second cell quality offset; and a second quality parameter offset value.

[0010] In a possible implementation, the first information further includes a plurality of ephemeris maps, the plurality of ephemeris maps including an ephemeris map of the serving cell and an ephemeris map of the neighbor cell, and each ephemeris map includes at least one of the following: a position of the access network device, a speed of the access network device, or an orbit of the access network device.

[0011] In a possible implementation, the first information further includes a plurality of speed threshold values, each speed threshold value corresponding to a different motion state.

[0012] In a possible implementation, performing cell reselection according to the first information includes: for any one cell, determining a motion state of the terminal device according to the ephemeris map associated with the cell, the speed of the terminal device, and the plurality of speed threshold values; determining reselection parameter information according to the motion state of the terminal device; and performing cell reselection according to the reselection parameter information corresponding to each cell.

[0013] In a possible implementation, determining the motion state of the terminal device according to the ephemeris map associated with the cell, the speed of the terminal, and the plurality of speed threshold values includes: determining a relative speed of the terminal device and the access network device according to the ephemeris map associated with the cell and the speed of the terminal device; and determining the motion state of the terminal device according to a relationship between the relative speed and the plurality of speed threshold values.

[0014] In a possible implementation, the first information further includes a first time length and / or a second time length, the first time length being a time length during which the terminal device does not camp on a cell and does not measure a cell selection criterion, and the second time length being a time length during which the terminal device camps on a cell and does not measure a cell reselection criterion.

[0015] In a possible implementation, each reselection-related configuration includes at least one of the following: a first cell reselection judgment time; a first time offset value; a first cell reselection hysteresis parameter; a first hysteresis parameter offset value; a first cell quality offset value; and a first quality parameter offset value.

[0016] In a possible implementation, each reselection-related configuration includes a plurality of reselection parameter information, and parameters in each reselection parameter information are applicable to different speeds.

[0017] In a possible implementation, each reselection-related configuration includes a plurality of reselection parameter information, and parameters in each reselection parameter information are applicable to different speeds.

[0018] In a possible implementation, each reselection parameter information includes at least one of the following: a second cell reselection judgment time; a second time offset value; a second cell reselection hysteresis parameter; a second hysteresis parameter offset value; a second cell quality offset; and a second quality parameter offset value.

[0019] In a possible implementation, the first information further includes a plurality of ephemeris maps, the plurality of ephemeris maps including an ephemeris map of the serving cell and an ephemeris map of the neighbor cell, and each ephemeris map includes at least one of the following: a position of the access network device, a speed of the access network device, or an orbit of the access network device.

[0020] In a possible implementation, the first information further includes a plurality of speed threshold values, each speed threshold value corresponding to a different motion state.

[0021] In a possible implementation, the first information further includes a first time length and / or a second time length, the first time length being a time length during which the terminal device does not camp on a cell and during which a cell selection criterion is not measured, and the second time length being a time length during which the terminal device camps on a cell and during which a cell reselection criterion is not measured.

[0022] In a third aspect, an embodiment of the present application provides a cell reselection apparatus, including: a communication module, configured to receive first information, the first information including one or more reselection-related configurations, and the first information being applicable to an Internet of Things terminal device or a non-Internet of Things terminal device; and a processing module, configured to perform cell reselection according to the first information.

[0023] In a possible implementation, each reselection-related configuration includes at least one of the following: a first cell reselection judgment time; a first time offset value; a first cell reselection hysteresis parameter; a first hysteresis parameter offset value; a first cell quality offset value; and a first quality parameter offset value.

[0024] In a possible implementation, each reselection-related configuration includes a plurality of reselection parameter information, and parameters in each reselection parameter information are applicable to different speeds.

[0025] In a possible implementation, each reselection parameter information includes at least one of the following: a second cell reselection judgment time; a second time offset value; a second cell reselection hysteresis parameter; a second hysteresis parameter offset value; a second cell quality offset; and a second quality parameter offset value.

[0026] In a possible implementation, the first information further includes a plurality of ephemeris maps, the plurality of ephemeris maps including an ephemeris map of the serving cell and an ephemeris map of the neighbor cell, and each ephemeris map includes at least one of the following: a position of the access network device, a speed of the access network device, or an orbit of the access network device.

[0027] In a possible implementation, the first information further includes a plurality of speed thresholds, each speed threshold corresponding to a different motion state.

[0028] In a possible implementation, the processing module is specifically configured to: for any one cell, determine a motion state of the terminal device according to the ephemeris diagram associated with the cell, the speed of the terminal device, and the plurality of speed thresholds; determine the reselection parameter information according to the motion state of the terminal device; and perform cell reselection according to the reselection parameter information corresponding to each cell.

[0029] In a possible implementation, the processing module is specifically configured to: determine a relative speed between the terminal device and the access network device according to the ephemeris diagram associated with the cell and the speed of the terminal device; and determine the motion state of the terminal device according to a relationship between the relative speed and the plurality of speed thresholds.

[0030] In a possible implementation, the first information further includes a first time length and / or a second time length, the first time length being a time length during which the terminal device does not camp on a cell and during which a cell selection criterion is not measured, and the second time length being a time length during which the terminal device camps on a cell and during which a cell reselection criterion is not measured.

[0031] In a fourth aspect, an embodiment of the present application provides a cell reselection apparatus, including: a determination module configured to determine first information, the first information including one or more reselection-related configurations, and the first information being applied to an Internet of Things terminal device or a non-Internet of Things terminal device; and a communication module configured to send the first information.

[0032] In a possible implementation, each reselection-related configuration includes at least one of: a first cell reselection judgment time; a first time offset value; a first cell reselection hysteresis parameter; a first hysteresis parameter offset value; a first cell quality offset value; and a first quality parameter offset value.

[0033] In a possible implementation, each reselection-related configuration includes a plurality of reselection parameter information, and parameters in each reselection parameter information are applicable to different speeds.

[0034] In a possible implementation, each reselection parameter information includes at least one of: a second cell reselection judgment time; a second time offset value; a second cell reselection hysteresis parameter; a second hysteresis parameter offset value; a second cell quality offset; and a second quality parameter offset value.

[0035] In a possible implementation, the first information further includes a plurality of ephemeris diagrams, the plurality of ephemeris diagrams including an ephemeris diagram of a serving cell and an ephemeris diagram of a neighbor cell, and each ephemeris diagram including at least one of: a position of an access network device, a speed of the access network device, or an orbit of the access network device.

[0036] In a possible implementation, the first information further includes a plurality of speed thresholds, each speed threshold corresponding to a different motion state.

[0037] In a possible implementation, the first information further includes a first time length and / or a second time length, the first time length being a time length during which the terminal device does not camp on a cell and during which the cell selection criterion is not measured, and the second time length being a time length during which the terminal device camps on a cell and during which the cell reselection criterion is not measured.

[0038] In a fifth aspect, an embodiment of the present application provides a terminal device, including: a processor and a memory; the memory stores computer-executed instructions; and the processor executes the computer-executed instructions stored in the memory, so that the terminal device performs the method described in the first aspect or any possible implementation of the first aspect.

[0039] In a sixth aspect, an embodiment of the present application provides a network device, including: a processor and a memory; the memory stores computer-executed instructions; and the processor executes the computer-executed instructions stored in the memory, so that the network device performs the method described in the second aspect or any possible implementation of the second aspect.

[0040] In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program or instructions, when the computer program or instructions are executed by a processor, the method described in the first aspect or any possible implementation of the first aspect is implemented, or the method described in the second aspect or any possible implementation of the second aspect is implemented.

[0041] In an eighth aspect, an embodiment of the present application provides a computer program product, which includes a computer program, when the computer program is run, the computer is caused to perform the method described in the first aspect or any possible implementation of the first aspect, or the computer is caused to perform the method described in the second aspect or any possible implementation of the second aspect.

[0042] In a ninth aspect, an embodiment of the present application provides a chip or a chip system, which includes at least one processor and a communication interface, the communication interface and the at least one processor are interconnected through a line, the at least one processor is configured to run a computer program or instructions, to perform the method described in the first aspect or any possible implementation of the first aspect, or to perform the method described in the second aspect or any possible implementation of the second aspect. The communication interface in the chip can be an input / output interface, a pin or a circuit, etc.

[0043] Embodiments of the present application provide a cell reselection method, device and storage medium. The method comprises: a network device sending first information to a terminal device, the first information comprising one or more reselection-related configurations, and the terminal device being able to accurately perform cell reselection based on the reselection-related configurations, thereby reducing the frequency of cell reselection. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 is an architecture diagram of a communication system according to an embodiment of the present application;

[0045] Figure 2 is a schematic diagram of a cell reselection method according to an embodiment of the present application;

[0046] Figure 3 is a structural schematic diagram of a cell reselection device according to an embodiment of the present application;

[0047] Figure 4 is a structural schematic diagram of another cell reselection device according to an embodiment of the present application;

[0048] Figure 5 is a structural schematic diagram of a terminal device according to an embodiment of the present application;

[0049] Figure 6 is a structural schematic diagram of a network device according to an embodiment of the present application. DETAILED DESCRIPTION

[0050] In order to clearly describe the technical solutions of the embodiments of the present application, the following briefly introduces some terms and technologies involved in the embodiments of the present application:

[0051] 1. Cell reselection

[0052] A terminal device in a radio resource control (RRC) idle state or an RRC inactive state can measure the signal quality of a serving cell and neighboring cells. If the signal quality of the serving cell is poor and the signal quality of the neighboring cells is good, the terminal device will actively reselect a cell with higher priority or better signal quality as the serving cell. This process can be referred to as cell reselection.

[0053] The process of cell reselection includes three stages: starting neighboring cell measurement (determining whether to start neighboring cell measurement according to a measurement starting condition), reselection evaluation and decision (determining whether the signal quality of the neighboring cell meets the cell reselection standard, and if so, performing cell reselection, otherwise remaining in the current cell), and cell reselection execution (receiving the system message of the target cell, and if the target cell has no access restriction, camping on the new cell).

[0054] Starting neighboring cell measurement: if the priority of the neighboring cell is higher than that of the serving cell, neighboring cell measurement is started unconditionally. If the priority of the neighboring cell is lower than or equal to that of the serving cell, the signal quality of the serving cell is compared with a threshold value issued by the network, and neighboring cell measurement is started only when the signal quality is lower than or equal to the threshold value.

[0055] Reselection evaluation decision: for high priority neighbor cell, when the neighbor cell signal quality is greater than the network configured high priority reselection threshold value in a certain time interval, and the terminal device stays in the current serving cell for more than 1s, cell reselection is performed. For the same priority neighbor cell, the R criterion is used for sorting: that is, the cell signal quality level of each neighbor cell and the current serving cell that meets the cell selection criteria is calculated; then according to the cell signal quality level sorting, the cell with the largest cell signal quality level or the cell close to the maximum within a certain range under multi-beam operation is selected, and then the cell with the most number of beams that meet the requirement of beam signal quality is selected as the best cell from these cells, if the best cell continuously meets the cell reselection criterion in a certain time interval, and the terminal device stays in the current serving cell for more than 1s, the terminal device starts cell reselection to the neighbor cell. For low priority cell, only when there is no cell in high priority cell and same priority cell that meets the cell reselection criterion, and the serving cell signal quality is lower than a certain threshold value and the low priority cell signal quality is higher than a certain threshold value in a certain time interval, and the terminal device stays in the current serving cell for more than 1s, the low priority cell is reselected.

[0056] Cell reselection execution: after completing the above neighbor cell measurement and determining that there is a new cell that meets the cell reselection criterion, the terminal device attempts to camp on the new cell, receives the system message of the cell, and after judging that the cell allows camping, it can camp on the new cell.

[0057] The above cell reselection priority is related to the frequency point where the cell is located. The cells on the same frequency point on the same radio access technology (RAT) have the same cell reselection priority, and the cell reselection priorities of different frequency points may be the same or different. That is, for intra-frequency neighbor cells, they have the same cell priority; for inter-frequency cells, they can be divided into high priority neighbor cells, same priority neighbor cells, and low priority neighbor cells. The cell reselection priority can be obtained from the system message of the serving cell or through dedicated signaling.

[0058] 2, signal quality

[0059] In the embodiments of the present application, the signal quality of the serving cell / neighbor cell can be the cell selection reception power value (Srxlev) or the cell selection quality value (Squal).

[0060] 3, intra-frequency measurement

[0061] Measurement on neighbor cells on the frequency of the serving frequency, including measurement on neighbor cells that are indicated in system information block (SIB) 3 to allow intra-frequency measurement.

[0062] 4. Inter-frequency measurement

[0063] Measurement on neighbor cells on new radio (NR) frequencies different from the serving frequency, including measurement on neighbor cells on inter-frequency frequencies indicated in SIB 4.

[0064] 5. Inter-RAT measurement

[0065] Measurement on neighbor cells on inter-RAT frequencies, including measurement on neighbor cells on EUTRA frequencies indicated in SIB 5.

[0066] 7. Internet of things (IoT)

[0067] IoT is an important component of future information technology development, and its main technical feature is to connect objects through communication technology and network, so as to realize the intelligent network of man-machine interconnection and interconnection. IoT technology can achieve massive connection, deep coverage and terminal power saving through, for example, narrow band (NB) technology.

[0068] 6. Other terms

[0069] In the embodiments of the present application, the same items or similar items with basically the same functions and effects are distinguished by using "first", "second", etc. For example, the first parameter and the second parameter are only used to distinguish different parameters, and the order is not limited. Those skilled in the art can understand that "first", "second", etc. do not limit the quantity and execution order, and "first", "second", etc. also do not necessarily mean different.

[0070] It should be noted that in the embodiments of the present application, "exemplary" or "for example" is used to represent an example, illustration or description. Any embodiment or design scheme described as "exemplary" or "for example" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the use of "exemplary" or "for example" is intended to present the relevant concept in a specific manner.

[0071] In the embodiments of this application, "at least one" means one or more, and "multiple" means two or more. The "and / or" describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the following three cases: A exists alone, A and B exist together, and B exists alone, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects before and after it. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, or c can represent a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be single or multiple.

[0072] In order to better understand the cell reselection method provided by the embodiments of the present application, the communication system architecture of the embodiments of the present application is described first as follows.

[0073] FIG. 1 is an architecture diagram of a communication system provided by the embodiments of the present application. As shown in FIG. 1, the communication system 100 includes a satellite 101, a terminal device 102, a gateway 103, and a core network device 104. Among them, the satellite 101 can communicate with the terminal device 102 through a service link, the satellite 101 can communicate with the gateway 103 through a feeder link, and the gateway 103 can communicate with the core network device 104.

[0074] In the above communication system, the satellite 101 has part or all of the functions of an access network device, which can be referred to as a satellite base station, and can provide a wireless access service to schedule wireless resources for terminals accessing the network through the satellite base station.

[0075] In a satellite system, there are wide beams and narrow beams. The coverage of a wide beam is relatively large, and a satellite can include one or more wide beams, and one or more wide beams constitute the coverage area of the entire satellite. The coverage of a narrow beam (also known as a hopping beam) is very small, and the coverage area of one hopping beam is called a wave position, and there can be hundreds of wave positions in the coverage area of a satellite. One or more wave positions correspond to one cell. The hopping beam serves the entire coverage area of the satellite in a hopping manner, that is, it covers only one wave position at a certain moment and covers another wave position at the next moment.

[0076] It should be noted that, for ease of understanding, only an example number of terminals, satellites, gateways, and core network devices is shown in FIG. 1. The communication system 100 can also include other numbers of satellites and other numbers of terminal devices in the coverage area of each satellite, and other access network devices can be used instead of satellites, which are not limited by the embodiments of the present application.

[0077] The terminal device related in the embodiments of the present application can also be referred to as a terminal, which can be a device with wireless transceiving function, and can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on water surface (such as ships, etc.); can also be deployed in the air (such as airplanes, balloons and satellites, etc.). The terminal device can be a user equipment (UE), wherein the UE includes a handheld device, a vehicle-mounted device, a wearable device or a computing device with wireless communication function. Exemplarily, the UE can be a mobile phone, a tablet computer or a computer with wireless transceiving function. The terminal device can also be a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in unmanned driving, a wireless terminal device in remote medical treatment, a wireless terminal device in smart power grid, a wireless terminal device in smart city, a wireless terminal device in smart home, etc. In addition, the terminal device can also be a terminal device in an IoT system. For example, a smart sound box, a smart lighting lamp, a smart refrigerator, a smart air conditioner, etc. In the embodiments of the present application, the device for implementing the function of the terminal device can be the terminal device; or can be a device capable of supporting the terminal device to implement the function, such as a chip system, which can be installed in the terminal device.

[0078] The access network device related in the embodiments of the present application can be a satellite, an aircraft, an unmanned aerial system (UAS) or other mobile network device (such as a bus, a subway, a high-speed rail, etc.). Or, the access network device can be a device with wireless transceiving function or a chip or chip system that can be disposed on the satellite, the aircraft, the UAS or the other mobile network device. The satellite can include a geostationary earth orbit (GEO) satellite, a medium earth orbit (MEO) satellite and a low earth orbit (LEO) satellite.

[0079] The technical solutions provided by the embodiments of the present application can be applied to an LTE architecture, and can also be applied to a universal mobile telecommunications system (UMTS) terrestrial radio access network (UTRAN) architecture, or a global system for mobile communication (GSM) / enhanced data rate for GSM evolution (EDGE) system radio access network (GERAN) architecture. In addition, the technical solutions provided by the embodiments of the present application can also be applied to any other wireless communication system with similar structures and functions, for example, a public land mobile network (PLMN) system, a 5G communication system or a communication system after 5G, such as 6G, and the embodiments of the present application do not make any limitation in this regard. The 5G mobile communication system can be non-standalone (NSA) or standalone (SA).

[0080] Wireless communication between communication devices can include wireless communication between network devices and terminal devices, wireless communication between network devices and network devices, and wireless communication between terminal devices and terminal devices. In the embodiments of the present application, the term "wireless communication" can also be referred to as "communication", and the term "communication" can also be described as "data transmission", "information transmission" or "transmission". Those skilled in the art can use the technical solutions provided by the embodiments of the present application for wireless communication between network devices and terminal devices, for example, wireless communication between access network devices and terminal devices.

[0081] In a non-terrestrial network communication system, a terminal device cannot determine its own motion state according to the mechanism in a terrestrial network communication system, and thus cannot accurately perform cell reselection, which can result in a high frequency of cell reselection.

[0082] Based on the above technical problem, the embodiments of the present application provide a cell reselection method, and the main inventive idea is as follows: a network device sends first information to a terminal device, the first information including one or more reselection-related configurations, and the terminal device can accurately perform cell reselection based on the reselection-related configurations, thereby reducing the frequency of cell reselection.

[0083] It should be noted that the communication system to which the cell reselection method of the present application is applicable can be a non-terrestrial network communication system.

[0084] The technical solutions shown in the present application will be described in detail below through specific embodiments. It should be noted that the following embodiments can exist independently or be combined with each other. For the same or similar content, such as the explanation of terms or nouns, and the explanation of steps, etc., reference can be made between different embodiments, and the explanation will not be repeated.

[0085] FIG. 2 is a schematic diagram of a cell reselection method provided by an embodiment of the present application. As shown in FIG. 2, the cell reselection method includes the following steps.

[0086] S201, the access network device sends first information to the terminal device, and the first information includes one or more reselection related configurations.

[0087] In other words, the terminal device receives the first information sent by the network device, and the first information includes one or more reselection related configurations.

[0088] The first information can be applied to an Internet of Things terminal device or a non-Internet of Things terminal device. That is, the network device can send the first information to the Internet of Things terminal device and the non-Internet of Things terminal device respectively.

[0089] The network device can send the first information to the Internet of Things terminal device and the non-Internet of Things terminal device respectively through different system messages.

[0090] The first information applicable to the Internet of Things terminal device and the first information applicable to the non-Internet of Things terminal device can be the same or different.

[0091] The non-Internet of Things terminal device can also be referred to as a general terminal device. For example, the non-Internet of Things terminal device can be an NR terminal device.

[0092] Each reselection related configuration is applicable to different cells, that is, the first information includes one or more reselection related configurations of cells.

[0093] In a possible implementation, each reselection related configuration can include at least one of the following:

[0094] 1) First cell reselection judgment time.

[0095] The first cell reselection judgment time can be a cell reselection judgment time that can be directly used by the terminal device, or an initial cell reselection judgment time of the terminal device.

[0096] The existing standard cell reselection time for ordinary terminal devices is INTEGER(0..7) seconds. In this embodiment, the rounding range of the cell reselection judgment time for ordinary terminal devices can be extended to 14 seconds; alternatively, the unit of the rounding range of the cell reselection judgment time for ordinary terminal devices can be extended to minutes or hours to reduce reselection. Alternatively, a new cell reselection judgment time can be configured for the ordinary terminal devices in this embodiment. For example, it can be Treselection... NTN =INTEGER(0..14) seconds, or Treselection NTN =INTEGER(0..7) minutes, or Treselection NTN Setting the time to INTEGER(0..7) for hours can not only reduce reselection but also reduce the impact on ordinary terminals in the terrestrial network.

[0097] Existing IoT terminal devices use a Treselection of INTEGER (0..21) seconds. In this embodiment, the cell reselection judgment time range for the IoT terminal device can be extended to 40 seconds; alternatively, the unit of the rounding range of the cell reselection judgment time can be extended to minutes or hours to reduce reselection. Alternatively, a new cell reselection judgment time can be configured for the IoT terminal device in this embodiment; for example, it could be Treselection. NTN =INTEGER(0..40) seconds, or Treselection NTN =INTEGER(0..21) minutes, which can not only reduce reselection, but also reduce the impact on IoT terminals in the terrestrial network.

[0098] 2) First time bias value.

[0099] The first time bias value can refer to the bias value between the cell reselection judgment time applicable to the terminal device and the initial cell reselection judgment time of the terminal device.

[0100] The cell reselection judgment time applicable to the terminal device can be the sum of the initial cell reselection judgment time of the terminal device and the first time offset value, or it can be the product of the initial cell reselection judgment time of the terminal device and the first time offset value.

[0101] The first time offset value can also refer to the offset value between the cell determination and reselection time applicable to the terminal device (i.e., the cell determination and reselection time applicable to the terminal device in non-terrestrial networks) and the cell reselection determination time applicable to the terminal device in terrestrial networks.

[0102] The cell reselection judgment time applicable to the terminal device can be the sum of the cell reselection judgment time applicable to the terminal device in the ground network and the first time offset value, or the product of the cell reselection judgment time of the terminal device in the ground network and the first time offset value.

[0103] 3) The first cell reselection hysteresis parameter.

[0104] The first cell reselection hysteresis parameter can be a cell reselection hysteresis parameter that the terminal device can directly use, or a terminal device initial cell reselection hysteresis parameter.

[0105] 4) The first hysteresis parameter offset value.

[0106] The first hysteresis parameter offset value can refer to the offset value between the cell reselection hysteresis parameter applicable to the terminal device and the terminal device initial cell reselection hysteresis parameter.

[0107] The cell reselection hysteresis parameter applicable to the terminal device can be the sum of the terminal device initial cell reselection hysteresis parameter and the first hysteresis parameter offset value, or the product of the terminal device initial cell reselection hysteresis parameter and the first hysteresis parameter offset value.

[0108] The first hysteresis parameter offset value can also refer to the offset value between the cell reselection hysteresis parameter applicable to the terminal device (i.e., the cell reselection hysteresis parameter applicable to the terminal device in the non-ground network) and the cell reselection hysteresis parameter applicable to the terminal device in the ground network.

[0109] The cell reselection hysteresis parameter applicable to the terminal device can be the sum of the cell reselection hysteresis parameter applicable to the terminal device in the ground network and the first hysteresis parameter offset value, or the product of the cell reselection hysteresis parameter applicable to the terminal device in the ground network and the first hysteresis parameter offset value.

[0110] 5) The first cell quality offset value.

[0111] The first cell quality offset value can be a cell quality offset value that the terminal device can directly use, or a terminal device initial cell quality offset value.

[0112] 6) The first quality parameter offset value.

[0113] The first quality parameter offset value can refer to the offset value between the cell quality offset value applicable to the terminal device and the terminal device initial cell quality offset value.

[0114] The cell quality offset value applicable to the terminal device can be the sum of the terminal device initial cell quality offset value and the first quality parameter offset value, or the product of the terminal device initial cell quality offset value and the first quality parameter offset value.

[0115] The first quality parameter bias value can also refer to a bias value between a cell quality bias value applicable to the terminal device in the non-terrestrial network (i.e., a cell quality bias value applicable to the terminal device in the non-terrestrial network) and a cell quality bias value applicable to the terminal device in the terrestrial network.

[0116] The cell quality bias value used by the terminal device can be a sum of the cell quality bias value applicable to the terminal device in the terrestrial network and the first quality parameter bias value, or a product of the cell quality bias value applicable to the terminal device in the terrestrial network and the first quality parameter bias value.

[0117] For example, each reselection-related configuration can include any one of the following: a first cell reselection judgment time; a first time bias value; a first cell reselection hysteresis parameter; a first hysteresis parameter bias value; a first cell quality bias value; a first quality parameter bias value; the first cell reselection judgment time and the first time bias value; the first cell reselection hysteresis parameter and the first hysteresis parameter bias value; the first cell quality bias value and the first quality parameter bias value; the first cell reselection judgment time and the first cell reselection hysteresis parameter; the first cell reselection judgment time and the first cell quality bias value; the first cell reselection hysteresis parameter and the first cell quality bias value; the first cell reselection judgment time, the first cell reselection hysteresis parameter, and the first cell quality bias value; the first time bias value and the first hysteresis parameter bias value; the first time bias value and the first quality parameter bias value; the first hysteresis parameter bias value and the first quality parameter bias value; the first time bias value, the first hysteresis parameter bias value, and the first quality parameter bias value; the first cell reselection judgment time and the first time bias value and the first cell reselection hysteresis parameter and the first hysteresis parameter bias value; the first cell reselection judgment time and the first time bias value and the first cell quality bias value and the first quality parameter bias value; the first cell reselection hysteresis parameter and the first hysteresis parameter bias value and the first cell quality bias value and the first quality parameter bias value; the first cell reselection judgment time and the first time bias value, the first cell reselection hysteresis parameter and the first hysteresis parameter bias value, and the first cell quality bias value and the first quality parameter bias value.

[0118] In a possible implementation, each reselection-related configuration can include a plurality of reselection parameter information, and parameters in each reselection parameter information are applicable to different speeds.

[0119] The plurality of reselection parameter information can be in the form of a list or in the form of a set, and the embodiments of the present application do not limit the form of the plurality of reselection parameter information.

[0120] In a possible implementation, each reselection parameter information can include at least one of the following:

[0121] 1) a second cell reselection judgment time.

[0122] The second cell reselection judgment time can refer to a cell reselection judgment time that the terminal device can directly use in a certain motion state, or can refer to an initial cell reselection judgment time of the terminal device in the certain motion state.

[0123] 2) A second time offset value.

[0124] The second time offset value can refer to an offset value between a cell reselection judgment time applicable to the terminal device in a certain motion state and an initial cell reselection judgment time of the terminal device in the motion state.

[0125] The cell reselection judgment time applicable to the terminal device in the certain motion state can be a sum of the initial cell reselection judgment time of the terminal device in the motion state and the second time offset value, or can be a product of the initial cell reselection judgment time of the terminal device in the motion state and the second time offset value.

[0126] The second time offset value can also refer to an offset value between a cell reselection judgment time applicable to the terminal device in a certain motion state (i.e., a cell reselection judgment time applicable to the terminal device in a non-ground network and in the motion state) and a cell reselection judgment time applicable to the terminal device in a ground network and in the motion state.

[0127] The cell reselection judgment time applicable to the terminal device in the certain motion state can be a sum of the cell reselection judgment time applicable to the terminal device in the ground network and in the motion state and the second time offset value, or can be a product of the cell reselection judgment time applicable to the terminal device in the ground network and in the motion state and the second time offset value.

[0128] 3) A second cell reselection hysteresis parameter.

[0129] The second cell reselection hysteresis parameter can refer to a cell reselection hysteresis parameter that the terminal device can directly use in a certain motion state, or can refer to an initial cell reselection hysteresis parameter of the terminal device in the certain motion state.

[0130] 4) A second hysteresis parameter offset value.

[0131] The second hysteresis parameter offset value can refer to an offset value between a cell reselection hysteresis parameter applicable to the terminal device in a certain motion state and an initial cell reselection hysteresis parameter of the terminal device in the motion state.

[0132] The cell reselection hysteresis parameter applicable to the terminal device in a certain motion state can be the sum of the initial cell reselection hysteresis parameter of the terminal device in the motion state and the second hysteresis parameter offset value, or the product of the initial cell reselection hysteresis parameter of the terminal device in the motion state and the second hysteresis parameter offset value.

[0133] The second hysteresis parameter offset value can also refer to the offset value between the cell reselection hysteresis parameter applicable to the terminal device in a certain motion state (i.e., the cell reselection hysteresis parameter applicable to the terminal device in the non-ground network in the motion state) and the cell reselection hysteresis parameter applicable to the terminal device in the ground network in the motion state.

[0134] The cell reselection hysteresis parameter applicable to the terminal device in a certain motion state can be the sum of the initial cell reselection hysteresis parameter of the terminal device in the motion state and the second hysteresis parameter offset value, or the product of the initial cell reselection hysteresis parameter of the terminal device in the motion state and the second hysteresis parameter offset value.

[0135] 5) The second cell quality offset value.

[0136] The second cell quality offset value can be the cell quality offset value that can be directly used by the terminal device in a certain motion state, or the initial cell quality offset value of the terminal device in the motion state.

[0137] 6) The second quality parameter offset value.

[0138] The second quality parameter offset value refers to the offset value between the cell quality offset value applicable to the terminal device in a certain motion state and the second cell quality offset value of the terminal device in the motion state.

[0139] The cell quality offset value applicable to the terminal device in a certain motion state can be the sum of the initial cell quality offset value of the terminal device in the motion state and the second quality parameter offset value, or the product of the initial cell quality offset value of the terminal device in the motion state and the second quality parameter offset value.

[0140] The second quality parameter offset value refers to the offset value between the cell quality offset value applicable to the terminal device in a certain motion state (i.e., the cell quality offset value applicable to the terminal device in the non-ground network in the motion state) and the cell quality offset value applicable to the terminal device in the non-ground network in the motion state.

[0141] The cell quality offset value applicable to the terminal device in the certain motion state can be a sum of the cell quality offset value applicable to the terminal device in the non-ground network and in the motion state and the second quality parameter offset value, or a product of the cell quality offset value applicable to the terminal device in the non-ground network and in the motion state and the second quality parameter offset value.

[0142] For example, each reselection parameter information can include any one of the following: a second cell reselection judgment time; a second time offset value; a second cell reselection hysteresis parameter; a second hysteresis parameter offset value; a second cell quality offset value; a second quality parameter offset value; the second cell reselection judgment time and the second time offset value; the second cell reselection hysteresis parameter and the second hysteresis parameter offset value; the second cell quality offset value and the second quality parameter offset value; the second cell reselection judgment time and the second cell reselection hysteresis parameter; the second cell reselection judgment time and the second cell quality offset value; the second cell reselection hysteresis parameter and the second cell quality offset value; the second cell reselection judgment time, the second cell reselection hysteresis parameter, and the second cell quality offset value; the second time offset value and the second hysteresis parameter offset value; the second time offset value and the second quality parameter offset value; the second hysteresis parameter offset value and the second quality parameter offset value; the second time offset value, the second hysteresis parameter offset value, and the second quality parameter offset value; the second cell reselection judgment time and the second time offset value and the second cell reselection hysteresis parameter and the second hysteresis parameter offset value; the second cell reselection judgment time and the second time offset value and the second cell quality offset value and the second quality parameter offset value; the second cell reselection hysteresis parameter and the second hysteresis parameter offset value and the second cell quality offset value and the second quality parameter offset value; the second cell reselection judgment time and the second time offset value, the second cell reselection hysteresis parameter and the second hysteresis parameter offset value, and the second cell quality offset value and the second quality parameter offset value.

[0143] The forms of the multiple reselection parameter information in the reselection-related configuration can be as shown in Table 1, Table 2, or Table 3.

[0144] Table 1

[0145] In Table 1, each row can represent a reselection parameter information, and the speed range corresponding to each row motion state is different.

[0146] Table 2

[0147] In Table 2, each row can represent a reselection parameter information, and the speed range corresponding to each row motion state is different.

[0148] Table 3

[0149] In Table 3, each row can represent a reselection parameter information, and each row of movement state corresponds to a different speed range.

[0150] In a possible implementation, the first information can further include a plurality of ephemeris maps, and the plurality of ephemeris maps include an ephemeris map of the serving cell and an ephemeris map of the neighbor cell.

[0151] That is, the first information can include the reselection-related configuration and the ephemeris map of the serving cell, and the reselection-related configuration and the ephemeris map of the neighbor cell.

[0152] Each ephemeris map can include at least one of the following: a position of the access network device, a speed of the access network device, or an orbit of the access network device.

[0153] In a possible implementation, the first information can further include a plurality of speed thresholds, and each speed threshold corresponds to a different speed state.

[0154] That is, the first information can include the reselection-related configuration (including a plurality of reselection parameter information), the ephemeris map, and the plurality of speed thresholds of the serving cell, and the reselection-related configuration (including a plurality of reselection parameter information), the ephemeris map, and the plurality of speed thresholds of the neighbor cell.

[0155] In a possible implementation, the first information can further include a first time length and / or a second time length, the first time length is a time length during which the terminal device does not reside in a cell and does not measure a cell selection criterion, and the second time length is a time length during which the terminal device resides in a cell and does not measure a cell reselection criterion.

[0156] S202. The terminal device performs cell reselection according to the first information.

[0157] The terminal device can perform cell reselection in the following manner:

[0158] 1) The first information includes the reselection-related configuration of the serving cell and the reselection-related configuration of the neighbor cell, and each reselection-related configuration includes a first cell reselection judgment time, and if the terminal device exceeds the first cell reselection judgment time of the serving cell, the terminal device can perform cell reselection according to the signal quality of each cell.

[0159] 2) The first information includes the reselection-related configuration of the serving cell and the reselection-related configuration of the neighbor cell, and each reselection-related configuration includes a first time offset value, and the terminal device can determine a cell reselection judgment time applicable to each cell according to the first time offset value of each cell, and if the terminal device exceeds the first cell reselection judgment time of the serving cell, the terminal device can perform cell reselection according to the signal quality of each cell.

[0160] 3) The first information includes the reselection related configuration of the serving cell and the reselection related configuration of the neighbor cell, and each reselection related configuration includes a first cell reselection judgment time and a first time offset value, the terminal device can determine the cell reselection judgment time applicable to each cell according to the first cell reselection judgment time and the first time offset value of each cell, and if the terminal device exceeds the cell reselection judgment time applicable to the serving cell, the terminal device can perform cell reselection according to the signal quality of each cell.

[0161] 4) The first information includes the reselection related configuration of the serving cell and the reselection related configuration of the neighbor cell, and each reselection related configuration includes a first cell reselection hysteresis parameter and a first cell quality offset value, the terminal device can determine the signal quality level of each cell according to the following formula: s = Q meas,s + Q hyst - Qoffset temp R n = Q meas,n - Qoffset - Qoffset temp

[0162] wherein R s is the signal quality level of the serving cell; Q meas,s is the signal quality of the serving cell measured by the terminal device; Q hyst is the first cell reselection hysteresis parameter of the serving cell; Qoffset temp is the offset value applied to one cell during cell selection or reselection, specifically temporarily applied in the case of T300 continuous timeout in one cell; R n is the signal quality level of the neighbor cell; Q meas,n is the signal quality of the neighbor cell measured by the terminal device; and Qoffset is the first cell quality offset value of the neighbor cell.

[0163] The signal quality levels of each cell are sorted, if the signal quality level of the serving cell is the largest, the terminal device does not perform cell reselection and still resides in the serving cell, and if the signal quality level of the neighbor cell is the largest, the terminal device can reselect to the neighbor cell.

[0164] 5) The first information includes the reselection related configuration of the serving cell and the reselection related configuration of the neighbor cell, and each reselection related configuration includes a first hysteresis parameter offset value and a first quality parameter offset value, then the terminal device can determine the cell reselection hysteresis parameter of the terminal device in each cell according to the first hysteresis parameter offset value of the cell, and determine the cell quality offset value of the terminal device in the cell according to the first quality parameter offset value of the cell; then determine the signal quality level of each cell according to the cell reselection hysteresis parameter and the cell quality offset value, the way of determining the signal quality level can refer to the way 4), which will not be repeated here; sort the signal quality level of each cell, if the signal quality level of the serving cell is the largest, the terminal device does not perform cell reselection, and still resides in the serving cell, if the signal quality level of the neighbor cell is the largest, the terminal device can reselect to the neighbor cell.

[0165] 6) The first information includes the reselection related configuration of the serving cell and the reselection related configuration of the neighbor cell, and each reselection related configuration includes a first cell reselection hysteresis parameter, a first hysteresis parameter offset value, a first cell quality offset value and a first quality parameter offset value, then the terminal device can determine the cell reselection hysteresis parameter applicable to the terminal device in each cell according to the first cell reselection hysteresis parameter and the first hysteresis parameter offset value of the cell, and determine the cell quality offset value applicable to the terminal device in the cell according to the first cell quality offset value and the first quality parameter offset value of the cell; then determine the signal quality level of each cell according to the cell reselection hysteresis parameter and the cell quality offset value applicable to the terminal device in each cell, the way of determining the signal quality level can refer to the way 4), which will not be repeated here; sort the signal quality level of each cell, if the signal quality level of the serving cell is the largest, the terminal device does not perform cell reselection, and still resides in the serving cell, if the signal quality level of the neighbor cell is the largest, the terminal device can reselect to the neighbor cell.

[0166] 7) The first information includes the reselection related configuration of the serving cell and the reselection related configuration of the neighbor cell, and each reselection related configuration includes a first cell reselection judgment time, a first cell reselection hysteresis parameter and a first hysteresis parameter offset value, if the terminal device exceeds the first cell reselection judgment time of the serving cell, the terminal device can determine the signal quality level of each cell according to the first cell reselection hysteresis parameter and the first cell quality offset value of the terminal device in each cell, the way of determining the signal quality level can refer to the way 4), which will not be repeated here; sort the signal quality level of each cell, if the signal quality level of the serving cell is the largest, the terminal device does not perform cell reselection, and still resides in the serving cell, if the signal quality level of the neighbor cell is the largest, the terminal device can reselect to the neighbor cell.

[0167] 8) The first information includes the reselection related configuration of the serving cell and the reselection related configuration of the neighbor cell, and each reselection related configuration includes a first time offset value, a first hysteresis parameter offset value and a first quality parameter offset value; the terminal device can determine the cell reselection judgment time applicable to each cell according to the first time offset value of each cell, determine the cell reselection hysteresis parameter of the terminal device in the cell according to the first hysteresis parameter offset value of each cell, determine the cell quality offset value of the terminal device in the cell according to the first quality parameter offset value of each cell, and then determine the signal quality level of each cell according to the cell reselection hysteresis parameter and the cell quality offset value. The way of determining the signal quality level can refer to the way 4), which will not be repeated here. If the terminal device exceeds the cell reselection judgment time of the serving cell, the terminal device can perform cell reselection according to the signal quality level of each cell. If the signal quality level of the serving cell is the largest, the terminal device does not perform cell reselection and still resides in the serving cell. If the signal quality level of the neighbor cell is the largest, the terminal device can reselect to the neighbor cell.

[0168] 9) The first information includes the reselection related configuration of the serving cell and the reselection related configuration of the neighbor cell, and each reselection related configuration includes a first cell reselection judgment time, a first cell reselection hysteresis parameter, a first hysteresis parameter offset value, a first time offset value, a first hysteresis parameter offset value and a first quality parameter offset value; the terminal device can determine the cell reselection judgment time applicable to each cell according to the first cell reselection judgment time and the first time offset value of each cell, determine the cell reselection hysteresis parameter applicable to the terminal device in the cell according to the first cell reselection hysteresis parameter and the first hysteresis parameter offset value of each cell, determine the cell quality offset value applicable to the terminal device in the cell according to the first cell quality offset value and the first quality parameter offset value of each cell, and then determine the signal quality level of each cell according to the cell reselection hysteresis parameter and the cell quality offset value applicable to the terminal device in each cell. The way of determining the signal quality level can refer to the way 4), which will not be repeated here. If the terminal device exceeds the cell reselection judgment time applicable to the serving cell, the terminal device can perform cell reselection according to the signal quality level of each cell. If the signal quality level of the serving cell is the largest, the terminal device does not perform cell reselection and still resides in the serving cell. If the signal quality level of the neighbor cell is the largest, the terminal device can reselect to the neighbor cell.

[0169] 10) If the first information comprises the reselection related configuration (including the plurality of reselection parameter information), the ephemeris map and the plurality of speed threshold values of the serving cell, and the reselection related configuration (including the plurality of reselection parameter information), the ephemeris map and the plurality of speed threshold values of the neighbor cell, the terminal device determines the motion state of the terminal device according to the ephemeris map associated with the cell, the speed of the terminal device and the plurality of speed threshold values for any one cell; determines the reselection parameter information according to the motion state of the terminal device; and performs cell reselection according to the reselection parameter information corresponding to each cell.

[0170] In a possible implementation, the motion state of the terminal device can be determined by: determining the relative speed of the terminal device and the access network device according to the ephemeris map associated with the cell and the speed of the terminal device; and determining the motion state of the terminal device according to the relationship between the relative speed and the plurality of speed threshold values.

[0171] For example, if there are six speed threshold values, if the relative speed of the terminal device and the satellite is less than or equal to the speed threshold value 1, the terminal device is in the motion state 1; if the relative speed of the terminal device and the satellite is greater than the speed threshold value 1 and less than or equal to the speed threshold value 2, the terminal device is in the motion state 2; if the relative speed of the terminal device and the satellite is greater than the speed threshold value 2 and less than or equal to the speed threshold value 3, the terminal device is in the motion state 3; if the relative speed of the terminal device and the satellite is greater than the speed threshold value 3 and less than or equal to the speed threshold value 4, the terminal device is in the motion state 4; if the relative speed of the terminal device and the satellite is greater than the speed threshold value 4 and less than or equal to the speed threshold value 5, the terminal device is in the motion state 5; and if the relative speed of the terminal device and the satellite is greater than the speed threshold value 5 and less than or equal to the speed threshold value 6, the terminal device is in the motion state 6.

[0172] After the terminal device determines the reselection parameter information of each cell, the terminal device can perform cell reselection according to the above-mentioned mode 1) to mode 9), which will not be described herein again.

[0173] 11) If the first information comprises the first time length, the terminal device starts timing when leaving the current serving cell, does not measure the cell selection rule, i.e., does not perform cell selection, within the first time length, and measures the cell selection rule to perform cell selection after the interval of the first time length.

[0174] 12) If the first information comprises the second time length, the terminal device starts timing when entering the current serving cell, does not measure the cell reselection rule, i.e., does not perform cell reselection, within the second time length, and measures the cell reselection rule to perform cell selection after the interval of the second time length.

[0175] In the embodiment shown in FIG. 2, the network device sends first information to the terminal device, the first information includes one or more reselection-related configurations, and the terminal device can accurately perform cell reselection based on the reselection-related configurations, thereby reducing the frequency of cell reselection.

[0176] FIG. 3 is a structural schematic diagram of a cell reselection apparatus provided by an embodiment of the present application. As shown in FIG. 3, the cell reselection apparatus 300 includes: a communication module 301, configured to receive first information, the first information including one or more reselection-related configurations, and the first information being applicable to an Internet of Things terminal device or a non-Internet of Things terminal device; and a processing module 302, configured to perform cell reselection according to the first information.

[0177] In a possible implementation, each reselection-related configuration includes at least one of: a first cell reselection judgment time; a first time offset value; a first cell reselection hysteresis parameter; a first hysteresis parameter offset value; a first cell quality offset value; and a first quality parameter offset value.

[0178] In a possible implementation, each reselection-related configuration includes a plurality of reselection parameter information, and parameters in each reselection parameter information are applicable to different speeds.

[0179] In a possible implementation, each reselection parameter information includes at least one of: a second cell reselection judgment time; a second time offset value; a second cell reselection hysteresis parameter; a second hysteresis parameter offset value; a second cell quality offset; and a second quality parameter offset value.

[0180] In a possible implementation, the first information further includes a plurality of ephemeris maps, the plurality of ephemeris maps including an ephemeris map of a serving cell and an ephemeris map of a neighboring cell, and each ephemeris map includes at least one of: a position of an access network device, a speed of the access network device, or an orbit of the access network device.

[0181] In a possible implementation, the first information further includes a plurality of speed threshold values, each speed threshold value corresponding to a different motion state.

[0182] In a possible implementation, the processing module 302 is specifically configured to: for any one cell, determine a motion state of the terminal device according to an ephemeris map associated with the cell, a speed of the terminal device, and the plurality of speed threshold values; determine reselection parameter information according to the motion state of the terminal device; and perform cell reselection according to the reselection parameter information corresponding to each cell.

[0183] In a possible implementation, the processing module 302 is specifically configured to: determine a relative speed between the terminal device and an access network device according to an ephemeris map associated with the cell and a speed of the terminal device; and determine a motion state of the terminal device according to a relationship between the relative speed and the plurality of speed threshold values.

[0184] In a possible implementation, the first information further includes a first time length and / or a second time length, the first time length being a time length during which the cell selection criterion is not measured when the terminal device does not camp on a cell, and the second time length being a time length during which the cell reselection criterion is not measured when the terminal device camps on a cell.

[0185] The cell reselection apparatus 300 provided in this embodiment is used to implement the technical solutions of the terminal device in the foregoing method embodiments, and has similar implementation principles and technical effects, which will not be described here again.

[0186] FIG. 4 is a structural schematic diagram of another cell reselection apparatus according to an embodiment of the present application. As shown in FIG. 4, the cell reselection apparatus 400 includes: a determination module 401 configured to determine first information, the first information including one or more reselection-related configurations, and the first information being applied to an Internet of Things terminal device or a non-Internet of Things terminal device; and a communication module 402 configured to send the first information.

[0187] In a possible implementation, each reselection-related configuration includes at least one of: a first cell reselection judgment time; a first time offset value; a first cell reselection hysteresis parameter; a first hysteresis parameter offset value; a first cell quality offset value; and a first quality parameter offset value.

[0188] In a possible implementation, each reselection-related configuration includes a plurality of reselection parameter information, and parameters in each reselection parameter information are applicable to different speeds.

[0189] In a possible implementation, each reselection parameter information includes at least one of: a second cell reselection judgment time; a second time offset value; a second cell reselection hysteresis parameter; a second hysteresis parameter offset value; a second cell quality offset; and a second quality parameter offset value.

[0190] In a possible implementation, the first information further includes a plurality of ephemeris maps, the plurality of ephemeris maps including an ephemeris map of a serving cell and an ephemeris map of a neighboring cell, and each ephemeris map includes at least one of: a position of an access network device, a speed of the access network device, or an orbit of the access network device.

[0191] In a possible implementation, the first information further includes a plurality of speed threshold values, each speed threshold value corresponding to a different motion state.

[0192] In a possible implementation, the first information further includes a first time length and / or a second time length, the first time length being a time length during which the cell selection criterion is not measured when the terminal device does not camp on a cell, and the second time length being a time length during which the cell reselection criterion is not measured when the terminal device camps on a cell.

[0193] The cell reselection apparatus 400 provided in this embodiment is used to implement the technical solutions of the access network device in the foregoing method embodiments, and has similar implementation principles and technical effects, which will not be described here again.

[0194] FIG. 5 is a structural schematic diagram of a terminal device provided in an embodiment of the present application. As shown in FIG. 5, the terminal device 500 includes a processor 501 and a memory 502. The memory 502 stores computer-executable instructions. The processor 501 executes the computer-executable instructions stored in the memory 502, so that the terminal device performs the corresponding technical solutions of the terminal device in the foregoing method embodiments. The implementation principles and technical effects are similar, which will not be described here again.

[0195] FIG. 6 is a structural schematic diagram of a network device provided in an embodiment of the present application. As shown in FIG. 6, the network device 600 includes a processor 601 and a memory 602. The memory 602 stores computer-executable instructions. The processor 601 executes the computer-executable instructions stored in the memory 602, so that the network device performs the corresponding technical solutions of the access network device in the foregoing method embodiments. The implementation principles and technical effects are similar, which will not be described here again.

[0196] An embodiment of the present application provides a chip. The chip includes a processor configured to invoke a computer program in a memory to execute the technical solutions in the above embodiments. The implementation principles and technical effects are similar to those of the above related embodiments, which will not be described here again.

[0197] An embodiment of the present application further provides a computer-readable storage medium storing a computer program. The computer program is executed by a processor to implement the method steps performed by the access network device in the foregoing method embodiments.

[0198] An embodiment of the present application further provides a computer-readable storage medium storing a computer program. The computer program is executed by a processor to implement the method steps performed by the terminal device in the foregoing method embodiments.

[0199] An embodiment of the present application provides a computer program product including a computer program. When the computer program is run, the computer program causes a computer to execute the method steps performed by the access network device in the foregoing method embodiments.

[0200] An embodiment of the present application provides a computer program product including a computer program. When the computer program is run, the computer program causes a computer to execute the method steps performed by the terminal device in the foregoing method embodiments.

[0201] The methods described in the above embodiments can be implemented, in whole or in part, by software, hardware, firmware, or any combination thereof. If implemented in software, the functions can be stored or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media can include computer storage media and communication media, and can further include any medium that facilitates transfer of a computer program from one place to another. Storage media can be any available media that can be accessed by a computer.

[0202] In a possible implementation, the computer-readable medium can include RAM, ROM, compact disc read-only memory (CD-ROM) or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of medium. Disk and disc, as used herein, include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk, and Blu-ray® disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.

[0203] The embodiments of the present application are described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) according to the embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, as well as combinations of flows and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a general purpose computer, a special purpose computer, an embedded processor, or other programmable data processing apparatus to produce a machine, so that the instructions executed by the computer or other programmable data processing apparatus generate a device that implements the functions specified in the flowchart and / or block diagram one or more flows and / or one or more blocks.

[0204] The above detailed description is merely descriptive of the application and specific embodiments thereof. It is not intended as a limitation on the scope of the application. Changes, equivalent substitutions, improvements, combinations, and the like, which are apparent to a skilled artisan, are covered by the following claims.

Claims

1. A cell reselection method, characterized by, Comprising: receiving first information, the first information comprising one or more reselection related configurations, the first information being applied to an internet of things terminal device or a non-internet of things terminal device; performing cell reselection according to the first information.

2. The method of claim 1, wherein, Each reselection related configuration comprises at least one of: a first cell reselection evaluation time; a first time offset value; a first cell reselection hysteresis parameter; a first hysteresis parameter offset value; a first cell quality offset value; a first quality parameter offset value.

3. The method of claim 1, wherein, Each reselection related configuration comprises a plurality of reselection parameter information, parameters in each reselection parameter information being applicable to different speeds.

4. The method of claim 3, wherein, Each reselection parameter information comprises at least one of: a second cell reselection evaluation time; a second time offset value; a second cell reselection hysteresis parameter; a second hysteresis parameter offset value; a second cell quality offset; a second quality parameter offset value.

5. The method according to any one of claims 1 to 4, characterized in that, The first information further comprises a plurality of ephemeris maps, the plurality of ephemeris maps comprising an ephemeris map of a serving cell and an ephemeris map of a neighbor cell, wherein: Each ephemeris map comprises at least one of: a position of an access network device, a speed of the access network device, or an orbit of the access network device.

6. The method according to any one of claims 1 to 5, characterized in that, The first information further comprises a plurality of speed threshold values, each speed threshold value corresponding to a different motion state.

7. The method of claim 6, wherein, Performing cell reselection according to the first information comprises: For any one cell, determining a motion state of the terminal device according to an ephemeris map associated with the cell, a speed of the terminal device, and the plurality of speed threshold values; Determining reselection parameter information according to the motion state of the terminal device; Performing cell reselection according to the reselection parameter information corresponding to each cell for the terminal device.

8. The method of claim 7, wherein, The determining a motion state of the terminal device according to an ephemeris map associated with the cell, a speed of the terminal device, and the plurality of speed threshold values comprises: Determining a relative speed of the terminal device and an access network device according to the ephemeris map associated with the cell and the speed of the terminal device; Determining the motion state of the terminal device according to a relationship between the relative speed and the plurality of speed threshold values.

9. The method of claim 1, wherein, The first information further comprises a first time length and / or a second time length, the first time length being a time length during which a cell selection criterion is not measured when the terminal device does not camp on a cell, and the second time length being a time length during which a cell reselection criterion is not measured when the terminal device camps on a cell.

10. A cell reselection method, characterized by, Comprising: determining first information, the first information comprising one or more reselection related configurations, the first information being applied to an internet of things terminal device or a non-internet of things terminal device; sending the first information.

11. The method of claim 10, wherein, Each reselection related configuration comprises at least one of: a first cell reselection evaluation time; a first time offset value; a first cell reselection hysteresis parameter; a first hysteresis parameter offset value; a first cell quality offset value; a first quality parameter offset value.

12. The method of claim 10, wherein, Each reselection related configuration comprises a plurality of reselection parameter information, parameters in each reselection parameter information being applicable to different speeds.

13. The method of claim 12, wherein, Each reselection parameter information comprises at least one of: a second cell reselection evaluation time; a second time offset value; a second cell reselection hysteresis parameter; a second hysteresis parameter offset value; a second cell quality offset; a second quality parameter offset value. The first information further comprises a plurality of ephemeris maps, the plurality of ephemeris maps comprising an ephemeris map of a serving cell and an ephemeris map of a neighbor cell, wherein: Each ephemeris map comprises at least one of: a position of an access network device, a speed of the access network device, or an orbit of the access network device. The first information further comprises a plurality of speed threshold values, each speed threshold value corresponding to a different motion state.

14. The method according to any one of claims 10 to 13, characterized in that, The first information further comprises a plurality of ephemeris maps, the plurality of ephemeris maps comprising an ephemeris map of the serving cell and ephemeris maps of the neighbor cells, wherein, Each ephemeris map comprises at least one of a position of the access network device, a velocity of the access network device, or an orbit of the access network device.

15. The method according to any one of claims 10 to 14, characterized in that, The first information further comprises a plurality of velocity thresholds, each velocity threshold corresponding to a different motion state.

16. The method of claim 10, wherein, The first information further comprises a first time duration and / or a second time duration, the first time duration being a time duration during which the cell selection criterion is not measured when the terminal device does not camp on a cell, and the second time duration being a time duration during which the cell reselection criterion is not measured when the terminal device camps on a cell.

17. A terminal device, comprising: Comprising: a processor and a memory; the memory storing computer-executable instructions; the processor executing the computer-executable instructions stored in the memory to cause the terminal to perform the method of any one of claims 1-9.

18. A network device, comprising: Comprising: a processor and a memory; the memory storing computer-executable instructions; the processor executing the computer-executable instructions stored in the memory to cause the network device to perform the method of any one of claims 10-16.

19. A computer-readable storage medium, the computer-readable storage medium storing a computer program, characterized in that, The computer program, when executed by the processor, implements the method of any one of claims 1-9, or the method of any one of claims 10-16.

20. A chip system, characterized by Comprising at least one processor and a communication interface, the communication interface and the at least one processor being interconnected by a line, the at least one processor being configured to run a computer program or instructions to perform the method of any one of claims 1-9, or the method of any one of claims 10-16.

21. A computer program product, characterised in that, Comprising a computer program, which, when executed by a computer, causes the computer to perform the method of any one of claims 1-9, or the method of any one of claims 10-16.

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