Method, terminal device and network device for cell reselection

Abstract

A cell reselection method, a terminal device and a network device are provided, which are beneficial to reselecting to a cell meeting the network slice requirement of the terminal device, thereby improving user experience. The method comprises: performing cell reselection by the terminal device according to first information; wherein the first information comprises at least one of network slice information of the terminal device, frequency point priority information and channel quality information of at least one cell, the frequency point priority information is used to indicate priority information of a frequency point or a cell, and the at least one cell comprises a serving cell and / or a neighboring cell of the terminal device.

Description

Technical Field

[0001] This application relates to the field of communications, specifically to a cell reselection method, terminal equipment, and network equipment. Background Technology

[0002] The 5G system proposes a network slicing (NS) architecture to address the differences in user needs. Specifically, different network switching can support different types of services.

[0003] In related technologies, terminal devices can perform cell reselection based on cell reselection measurement criteria and cell reselection criteria. Based on these criteria, the terminal device will reselect a cell with high channel quality. However, if the terminal device's service is related to network slicing, performing cell reselection according to the above criteria may affect the terminal's service transmission and user experience. Summary of the Invention

[0004] This application provides a cell reselection method and terminal device, which facilitates reselection to a cell that meets the network slicing requirements of the terminal device, thereby improving the user experience.

[0005] In a first aspect, a cell reselection method is provided, comprising: a terminal device performing cell reselection based on first information; wherein the first information includes at least one of the terminal device's network slice information, frequency priority information, and channel quality information of at least one cell, the frequency priority information being used to indicate the priority information of a frequency or cell, and the at least one cell including the terminal device's serving cell and / or neighboring cells.

[0006] Secondly, a cell reselection method is provided, comprising: a network device sending second information to a terminal device, the second information being used to indicate network slice-related information, the second information being used by the terminal device to perform cell reselection.

[0007] Thirdly, a terminal device is provided for executing the method in the first aspect or any possible implementation thereof. Specifically, the terminal device includes a unit for executing the method in the first aspect or any possible implementation thereof.

[0008] Fourthly, a network device is provided for performing the method in the second aspect or any possible implementation thereof. Specifically, the network device includes units for performing the method in the second aspect or any possible implementation thereof.

[0009] Fifthly, a terminal device is provided, comprising a processor and a memory. The memory stores a computer program, and the processor invokes and runs the computer program stored in the memory to perform the methods described in the first aspect or its various implementations.

[0010] Sixthly, a network device is provided, comprising a processor and a memory. The memory is used to store a computer program, and the processor is used to invoke and run the computer program stored in the memory to perform the methods described in the second aspect or its implementations.

[0011] In a seventh aspect, a chip is provided for implementing the methods of any one of the first to second aspects or their respective implementations.

[0012] Specifically, the chip includes a processor for calling and running a computer program from memory, causing a device on which the chip is mounted to perform a method as described in any of the first to second aspects above or in their respective implementations.

[0013] Eighthly, a computer-readable storage medium is provided for storing a computer program that causes a computer to perform the methods of any one of the first to second aspects or their respective implementations.

[0014] Ninthly, a computer program product is provided, including computer program instructions that cause a computer to perform the methods of any one of the first to second aspects or their respective implementations.

[0015] In a tenth aspect, a computer program is provided that, when run on a computer, causes the computer to perform the methods of any one of the first to second aspects or their respective implementations.

[0016] Based on the above technical solution, during cell reselection, the terminal device can evaluate the cell reselection based on the terminal device's network slice information, frequency priority information, and the cell's channel quality. This is beneficial for reselecting to a cell with good channel quality that meets the terminal device's network slice requirements, thereby improving the user experience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram illustrating an application scenario provided in an embodiment of this application.

[0018] Figure 2 This is a schematic diagram of a cell reselection method provided in an embodiment of this application.

[0019] Figure 3This is a schematic diagram of another cell reselection method provided in the embodiments of this application.

[0020] Figure 4 This is a schematic block diagram of a terminal device provided in an embodiment of this application.

[0021] Figure 5 This is a schematic block diagram of a network device provided in an embodiment of this application.

[0022] Figure 6 This is a schematic block diagram of a communication device provided in another embodiment of this application.

[0023] Figure 7 This is a schematic block diagram of a chip provided in an embodiment of this application.

[0024] Figure 8 This is a schematic block diagram of a communication system provided in an embodiment of this application. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art without creative effort regarding the embodiments of this application are within the scope of protection of this application.

[0026] The technical solutions of this application embodiment can be applied to various communication systems, such as: Global System for Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, evolution of NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), and Wireless Fidelity (WF). Fidelity (WiFi), 5th-Generation (5G) communication systems, or other communication systems.

[0027] Traditional communication systems typically support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication but also, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, or vehicle-to-everything (V2X) communication. The embodiments of this application can also be applied to these communication systems.

[0028] Optionally, the communication system in this application embodiment can be applied to carrier aggregation (CA) scenarios, dual connectivity (DC) scenarios, or standalone (SA) network deployment scenarios.

[0029] Optionally, the communication system in this application embodiment can be applied to unlicensed spectrum, wherein unlicensed spectrum can also be considered as shared spectrum; or, the communication system in this application embodiment can also be applied to licensed spectrum, wherein licensed spectrum can also be considered as non-shared spectrum.

[0030] This application describes various embodiments in conjunction with network devices and terminal devices. The terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device, etc.

[0031] Terminal devices can be stations (STs) in WLANs, cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistant (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices, wearable devices, terminal devices in next-generation communication systems such as NR networks, or terminal devices in future evolved Public Land Mobile Network (PLMN) networks, etc.

[0032] In the embodiments of this application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships); and it can also be deployed in the air (such as airplanes, balloons and satellites).

[0033] In the embodiments of this application, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, 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 care, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0034] By way of example and not limitation, in this embodiment, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0035] In the embodiments of this application, the network device can be a device for communicating with mobile devices. The network device can be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved Node B (eNB or eNodeB) in LTE, a relay station or access point, or a vehicle-mounted device, wearable device, or a network device (gNB) in an NR network, or a network device in a future evolved PLMN network or an NTN network, etc.

[0036] By way of example and not limitation, in this embodiment, the network device may have mobility characteristics; for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low Earth orbit (LEO) satellite, a medium Earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station located on land, water, or other similar locations.

[0037] In this embodiment, the network device can provide services to a cell. The terminal device communicates with the network device through the transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell can be the cell corresponding to the network device (e.g., a base station). The cell can belong to a macro base station or to a base station corresponding to a small cell. The small cell can include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-speed data transmission services.

[0038] For example, the communication system 100 used in the embodiments of this application is as follows: Figure 1 As shown. The communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal, terminal). The network device 110 can provide communication coverage for a specific geographical area and can communicate with terminal devices located within that coverage area.

[0039] Figure 1 An exemplary embodiment shows a network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area. This application embodiment does not limit this.

[0040] Optionally, the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment.

[0041] It should be understood that devices with communication functions in the network / system of this application embodiment can be referred to as communication devices. Figure 1Taking the communication system 100 shown as an example, the communication equipment may include a network device 110 and a terminal device 120 with communication functions. The network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here. The communication equipment may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities. This application embodiment does not limit this.

[0042] It should be understood that the terms "system" and "network" are often used interchangeably in this document. The term "and / or" in this document merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0043] It should be understood that the term "instruction" mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0044] In the description of the embodiments of this application, the term "correspondence" may indicate that there is a direct or indirect correspondence between two things, or that there is an association between two things, or that there is a relationship of instruction and being instructed, configuration and being configured, etc.

[0045] Cell reselection is a process in which an idle or inactive UE selects a better cell to provide service by monitoring the signal quality of the serving cell and neighboring cells.

[0046] In some embodiments, the terminal device can obtain cell reselection parameters through a broadcast message. The broadcast message may, for example, include at least one of System Information Blocks (SIBs) 2-SIB5.

[0047] Optionally, the cell reselection parameters may include at least one of the following:

[0048] Optimal cell range, for example, rangeToBestCell;

[0049] The reference signal merging threshold, such as absThreshSS-BlocksConsolidation, if a rangeToBestCell is configured, is used to indicate the minimum threshold corresponding to the beam used to select the highest-ranked cell, and the minimum threshold used to determine the cell measurement; optionally, this parameter in SIB2 is used for the current serving frequency, and this parameter in SIB4 is used for the corresponding inter-frequency point;

[0050] Cell reselection priority, such as cellReselectionPriority, is used to indicate the absolute priority of NR or E-UTRAN frequencies;

[0051] Cell reselection sub-priority, such as cellReselectionSubPriority, is used to indicate the fractional (or decimal) priority value of the NR or E-UTRAN frequency added to the cell reselection priority.

[0052] High-priority relaxed measurement indicators, such as highPriorityMeasRelax, are used to indicate whether relaxed measurements are allowed for high-priority frequency points (provided that the relaxed measurement conditions are met);

[0053] The number of beams that the highest-ranked cell can be used for reselection, such as nrofSS-BlocksToAverage, indicates the number of beams used to select the highest-ranked cell and the number of beams used to determine cell measurements if an optimal cell range (rangeToBestCell) is configured. Optionally, this parameter in SIB2 is used for the current serving frequency, and this parameter in SIB4 is used for the corresponding inter-frequency.

[0054] Offset between cells, such as Q offsets，n This is used to indicate the offset between two cells;

[0055] Frequency offset of the same frequency point priority, for example, Q. offsetfrequency , used to indicate the frequency-specific offset of NR frequency points of equal priority;

[0056] Lag value, such as Q hyst This indicates the lag value used for the ranking criterion (or R criterion);

[0057] Additional offsets used for cell selection or reselection, such as Q offsettemp This is used to characterize the additional offset used for cell selection or reselection.

[0058] Minimum quality level, such as Qqualmin This represents the minimum quality level required for a cell, measured in dB.

[0059] Minimum receive level, such as Q rxlevmin This is used to indicate the minimum receive level required by the cell, and the unit is dBm;

[0060] Minimum quality level offset, e.g., Q qualminoffsetcell This indicates the cell's quality level relative to the minimum quality level Q. qualmin The offset;

[0061] Minimum receive level offset, e.g., Q rxlevminoffsetcell This indicates the offset of the cell's received signal level relative to the minimum received signal level.

[0062] The following is a brief explanation of the cell reselection measurement criteria and cell reselection criteria related to the embodiments of this application.

[0063] Cell reselection measurement criteria

[0064] Cell measurements can include in-frequency measurements and radio access technology (RAT) measurements.

[0065] 1. Same frequency measurement

[0066] Specifically, the UE can obtain cell reselection parameters related to co-frequency measurement through broadcast messages, such as the co-frequency measurement initiation threshold. The co-frequency measurement initiation threshold includes the Co-frequency Reference Signal Received Power (RSRP) threshold (i.e., S...). intraserachP ) and the Reference Signal Receiving Quality (RSRQ) threshold (i.e., S intraserachQ ).

[0067] The UE can determine whether to initiate co-frequency measurement based on the measurement results of the serving cell and the co-frequency measurement initiation threshold.

[0068] For example, the UE may not initiate intra-frequency measurement if the measurement results of the serving cell do not meet the intra-frequency measurement initiation threshold. Otherwise, intra-frequency measurement will be initiated.

[0069] Optionally, the fact that the measurement results of the serving cell do not meet the co-frequency measurement initiation threshold may include S. rxlev >S intraserachP And S qual >S intraserachQ Otherwise, it indicates that the measurement results of the serving cell meet the same-frequency measurement initiation threshold. Where S rxlevThis represents the RSRP-related measurement results of the serving cell, for example, S rxlev It equals Qrxlevmeas - Qrxlevmin, where Qrxlevmeas represents the RSRP of the serving cell, and Qrxlevmin can be, for example, -128 dBm. qual This represents the RSRQ-related measurement results of the serving cell, for example, S. qual It equals Qqualmeas - Qqualmin, where Qqualmeas represents the RSRQ of the serving cell, and Qqualmin can be, for example, -60.

[0070] 2. Measurement of different frequencies and different RATs

[0071] Specifically, cell reselection parameters related to inter-frequency or inter-RAT measurements can be obtained through broadcast messages, such as the inter-frequency measurement initiation threshold. The inter-frequency measurement initiation threshold includes the inter-frequency RSRP threshold (i.e., S...). nonintraserachP ) and different frequency RSRQ threshold (i.e. S nonintraserachQ ).

[0072] The UE can determine whether to initiate inter-frequency or inter-RAT measurement based on the measurement results of the serving cell, the frequency reselection priority, and the inter-frequency measurement initiation threshold.

[0073] For example, measurements are always performed on different frequency points or different RAT frequency points where the reselection priority is higher than that of the current frequency point.

[0074] For example, for different frequency points or different RAT frequency points with a reselection priority lower than or equal to the current frequency point's reselection priority, the measurement shall be performed according to the following rules:

[0075] If the measurement results of the serving cell do not meet the inter-frequency measurement start threshold, inter-frequency or inter-RAT measurement will not be started. Otherwise, inter-frequency or inter-RAT measurement will be started.

[0076] Optionally, the fact that the measurement results of the serving cell do not meet the inter-frequency measurement initiation threshold may include S. rxlev >S nonintraserachP And S qual >S nonintraserachQ Otherwise, it indicates that the measurement results of the serving cell meet the inter-frequency measurement initiation threshold. Wherein, S rxlev This represents the RSRP-related measurement results of the serving cell, for example, S rxlev It equals Qrxlevmeas - Qrxlevmin, where Qrxlevmeas represents the RSRP of the serving cell, and Qrxlevmin can be, for example, -128 dBm. qual This represents the RSRQ-related measurement results of the serving cell, for example, S. qualIt equals Qqualmeas - Qqualmin, where Qqualmeas represents the RSRQ of the serving cell, and Qqualmin can be, for example, -60.

[0077] Community re-election criteria

[0078] If a high-priority cell has multiple neighboring cells that meet the conditions, the optimal cell on the high-priority frequency point is selected. For frequencies of equal priority, cell reselection can be performed according to the R criterion for reselection of cells on the same frequency.

[0079] For example, for cell reselection of high-priority cells, the following conditions must be met:

[0080] 1. The UE stays in the original cell for more than a certain period of time, for example, 1 second;

[0081] 2. If the first threshold is broadcast (e.g., Thresh) X，HighQ (or high-priority reselection threshold), the S-value (e.g., Squal) of a high-priority frequency cell is greater than the first threshold (Thresh). X，HighQ ); or, if Thresh is not broadcast X，HighQ The S-value (e.g., Srxlev) of a high-priority frequency cell is greater than the second threshold (Thresh). X，HighP );

[0082] 3. The duration of the S-value of a cell on a high-priority frequency point exceeds the reselection time parameter (e.g., Treselection). RAT ).

[0083] For example, for cell reselection on low-priority frequencies, the following conditions must be met:

[0084] 1. The UE stays in the serving cell for a longer than a certain period of time, such as 1 second;

[0085] 2. Cells without high-priority (or equal-priority) frequency points meet the reselection requirements;

[0086] 3. If a third threshold is broadcast (e.g., Thresh) Serving，LowQ The serving cell's S-value (e.g., Squal) is less than the third threshold, and the S-value of cells on low-priority frequencies is greater than the fourth threshold (e.g., Thresh). x，LowQ (or low-priority reselection threshold); or, if Thresh is not broadcast Serving，LowQ The S-value of the serving cell (e.g., Srxlev) is less than the fifth threshold (e.g., Thresh). Serving，LowP), and the S-value (e.g., Srxlev) of low-priority frequency cells is greater than the sixth threshold (e.g., Thresh). x，LowP ).

[0087] 4. The duration of the S-value of a low-priority frequency cell exceeds the reselection time parameter (e.g., Treselection). RAT ).

[0088] It should be understood that the cell reselection measurement criteria and cell reselection criteria in the above examples are merely examples, and may be modified or adjusted as communication technologies evolve and develop. This application is not limited thereto.

[0089] Therefore, in cell reselection, the signal quality of the cell is mainly used as the judgment condition, and the cell reselected is the cell with good signal quality. However, after the introduction of network slicing, different cells may support different network slices, and the services transmitted by terminal devices may require cells to support specific network slices. In this case, cell reselection based solely on the signal quality of the cell may result in reselecting a cell that does not support the network slice services required by the terminal, thus affecting the terminal's service transmission.

[0090] Figure 2 This is a schematic flowchart illustrating a cell reselection method 200 provided in an embodiment of this application. The method 200 can be... Figure 1 The terminal device in the communication system shown performs, such as Figure 2 As shown, the method 200 may include at least some of the following:

[0091] S210, the terminal device performs cell reselection based on the first information; wherein, the first information includes at least one of the terminal device's network slice information, frequency priority information, and channel quality information of at least one cell, the frequency priority information is used to indicate the priority information of a frequency or cell, and the at least one cell includes the terminal device's serving cell and / or neighboring cells.

[0092] It should be understood that the embodiments of this application can be applied to cell reselection scenarios. Of course, they can also be applied to other scenarios where cell selection is performed, such as cell selection and cell handover scenarios. In specific implementation, the selection can be further combined with the technical solutions of the embodiments of this application based on the selection conditions in related technologies. For the sake of brevity, it will not be elaborated here.

[0093] Optionally, in some embodiments of this application, the channel quality information of the cell can be parameters related to the cell's measurement results, such as the cell's quality level or received level. As a specific example, the cell's channel quality information can be characterized by the cell's S-value, which can be, for example, Squal or Srxlev. The measurement results can be, for example, but not limited to, at least one of the following: Channel Quality Indicator (CQI), Reference Signal Receiving Power (RSRP), Reference Signal Receiving Quality (RSRQ), and Signal to Interference plus Noise Ratio (SINR).

[0094] Optionally, in some embodiments, the network slice information of the terminal device is the network slice information required by the terminal device, the network slice information supported by the terminal device, or the network slice information selected by the terminal device, or the pre-configured network slice information, or the network slice information allowed by the terminal device, or the network slice information registered by the terminal device, or the network slice information expected by the terminal device.

[0095] In other embodiments, the network slice information of the terminal device is the union of at least two of the following: network slice information supported by the terminal device, network slice information selected by the terminal device, network slice information allowed by the terminal device, network slice information expected by the terminal device, network slice information registered by the terminal device, and pre-configured network slice information.

[0096] In some other embodiments, the network slice information of the terminal device is the intersection of at least two of the following: network slice information supported by the terminal device, network slice information selected by the terminal device, network slice information allowed by the terminal device, network slice information desired by the terminal device, and network slice information registered by the terminal device and pre-configured network slice information.

[0097] Optionally, the network slice information that the terminal device needs, selects, or expects can be determined by the terminal device based on at least one of the following: the type of the terminal device, the type of service to be transmitted, or the priority of the network slice.

[0098] Optionally, the pre-configured network slice information is network slice information pre-configured on the terminal device. For example, the pre-configured network slice information may be network slice information supported by the terminal device, or network slice information corresponding to the service types supported by the terminal device, etc.

[0099] Optionally, the network slicing information allowed for the terminal device may be configured by the network device or pre-configured.

[0100] Optionally, the network slice information registered by the terminal device may be a network slice registered during the network registration process.

[0101] Optionally, in some embodiments, the network slicing information of the terminal device includes at least one of the following:

[0102] Network slice identification information, such as slice ID, single network slice selection assistance information (S-NSSAI) and network slice selection assistance information (NSSAI), and network slice ID, at least one of the following;

[0103] The frequency information corresponding to network slices, or in other words, the frequency layer;

[0104] Cell information corresponding to network slices;

[0105] Priority information corresponding to network slices;

[0106] Weight information corresponding to network slices;

[0107] Priority information for the frequency points corresponding to network slices;

[0108] Weight information of frequency points corresponding to network slices.

[0109] Optionally, for different network slices, at least one of their corresponding frequency information, cell information, priority information, and weight information may be different or the same, or may be partially the same.

[0110] Optionally, different network slices may have different corresponding frequency points, and / or the frequency priority information of at least one corresponding frequency point may also be different or partially different.

[0111] Optionally, for different network slices, the corresponding frequency points may be different, and / or the frequency weight information of at least one corresponding frequency point may also be different or partially different.

[0112] Optionally, the frequency or cell information corresponding to the network slice can indicate the frequency or cell that supports the network slice, or in other words, the frequency or cell that has the capability to support the network slice service. Considering the frequency or cell corresponding to the network slice during cell reselection helps to reselect the frequency or cell that supports the network slice service required by the terminal device, thereby improving the user experience.

[0113] In this embodiment of the application, the network slices indicated by the network slice identifier information in the network slice information of the terminal device constitute a first network slice set. The first network slice set can be described as the network slices required by the terminal device. The priority corresponding to the network slice can refer to the priority corresponding to the network slice in the first network slice set, and the weight information corresponding to the network slice can refer to the weight corresponding to the network slice in the first network slice set.

[0114] Optionally, in some embodiments, the priority information corresponding to the network slice of the terminal device may be configured by the network device or determined by the terminal device, and this application does not limit this.

[0115] As an example, the terminal device can obtain priority information corresponding to the network slice of the terminal device from the core network. For example, the terminal device can obtain priority information corresponding to multiple network slices through Non-Access Stratum (NAS) messages, and further combine the network slice information of the terminal device to determine the priority information corresponding to the network slice in the first network slice set.

[0116] As another embodiment, the terminal device can determine the priority information corresponding to the network slice based on its own interests, service requirements, and other information. For example, the terminal device can determine the network slice it is most interested in as the highest priority network slice, or determine the network slice that supports the service to be transmitted as the highest priority network slice, etc.

[0117] Optionally, in some embodiments, the weight information of the network slice of the terminal device may be configured by the network device or determined by the terminal device, and this application does not limit this.

[0118] As one embodiment, the terminal device can obtain weight information of multiple network slices from the serving cell. For example, the weight information of the multiple network slices can be obtained through broadcast messages or dedicated signaling. Furthermore, the weight information corresponding to the network slices in the first network slice set can be determined based on the weight information of the multiple network slices and the network slice information of the terminal device.

[0119] Optionally, the weight information of the multiple network slices may be applicable to the serving cell, or it may be applicable to both the serving cell and neighboring cells.

[0120] As another embodiment, the terminal device can obtain the weight information of the network slice of the terminal device from the core network. For example, the terminal device can obtain the weight information corresponding to multiple network slices through NAS messages, and further determine the weight information corresponding to the network slices in the first network slice set based on the weight information corresponding to the multiple network slices.

[0121] As another embodiment, the terminal device can determine the weight information of the network slices itself. For example, the terminal device can determine the weight information of the network slices in the first network slice set based on its own interests, service requirements, and other information. For instance, the terminal device can determine the network slice it is most interested in as the network slice with the highest weight, or determine the network slice that supports the service to be transmitted as the network slice with the highest weight, etc.

[0122] Optionally, in other embodiments, the frequency information, cell information, weight information, or priority information corresponding to the network slice of the terminal device may also be pre-configured, and this application is not limited thereto.

[0123] When performing cell reselection, the terminal device combines information such as the cell, frequency, priority information, or weight information corresponding to the network slice it needs, which helps it to reselect a cell or frequency that supports the network slice required by the terminal device. This ensures the normal transmission of network slice services and improves user experience.

[0124] In some embodiments, the network device can provide services to the serving cell, and the terminal device can obtain information about the network slices supported by the serving cell from the serving cell. For example, the terminal device can obtain information about the network slices supported by the serving cell through system broadcast messages or Radio Resource Control (RRC) signaling, such as RRC-specific signaling. Alternatively, it can obtain information about the network slices supported by the serving cell through other messages or signaling, but this application is not limited thereto.

[0125] In other embodiments, the terminal device may also obtain information about at least one network slice supported by a neighboring cell from the serving cell. For example, the terminal device may obtain this information via a system broadcast message or RRC signaling, where the RRC signaling may be, for example, RRC-specific signaling. Alternatively, the information may be obtained via other messages or signaling, but this application is not limited thereto.

[0126] In other embodiments, the terminal device may also obtain information about network slices supported by the network side from the serving cell. For example, the terminal device may obtain information about network slices supported by the network side through system broadcast messages or RRC signaling, such as RRC-specific signaling. Alternatively, information about network slices supported by the network side may be obtained through other messages or signaling, and this application is not limited thereto.

[0127] Optionally, the network slice information supported by the network side may include information on network slices supported by at least one cell served by the network device, or information on network slices supported by all network devices, or information on network slices supported by network devices in the tracking area (TA) list or TA area where the network device is located, or information on network slices supported by network devices in the Access and Mobility Management Function (AMF) where the network device is located.

[0128] Optionally, in some embodiments, the network slicing information supported by the serving cell includes at least one of the following:

[0129] The identification information of the network slices supported by the serving cell;

[0130] The frequency point information corresponding to the network slices supported by the serving cell;

[0131] The cell information corresponding to the network slices supported by the serving cell;

[0132] Priority information corresponding to the network slices supported by the serving cell;

[0133] The weight information corresponding to the network slices supported by the serving cell;

[0134] Frequency priority information for at least one frequency point corresponding to the network slice supported by the serving cell;

[0135] The weight information of at least one frequency point corresponding to the network slice supported by the serving cell.

[0136] Optionally, in some embodiments, the network slice information supported by the neighboring cells includes at least one of the following:

[0137] The identification information of the network slices supported by the neighboring cells;

[0138] The frequency point information corresponding to the network slices supported by the neighboring cells;

[0139] The cell information corresponding to the network slices supported by the neighboring cells;

[0140] Priority information corresponding to the network slices supported by the neighboring cells;

[0141] The weight information corresponding to the network slices supported by the neighboring cells;

[0142] Frequency priority information for at least one frequency point corresponding to the network slice supported by the neighboring cell;

[0143] The weight information of at least one frequency point corresponding to the network slice supported by the neighboring cell.

[0144] Optionally, the definition of the network slice information of the serving cell and neighboring cells can refer to the relevant definition of the network slice information of the terminal device. For the sake of brevity, it will not be repeated here.

[0145] Optionally, the serving cell may indicate priority information corresponding to multiple network slices via broadcast messages or dedicated messages. This priority information may apply to the serving cell, or it may apply to both the serving cell and neighboring cells. In other embodiments, the priority information corresponding to the multiple network slices may be pre-configured.

[0146] Optionally, the priority information corresponding to the network slices supported by the serving cell can be determined based on the priority information corresponding to the multiple network slices and the identification information of the network slices supported by the serving cell, or the priority information corresponding to the network slices supported by the neighboring cell can also be determined based on the priority information corresponding to the multiple network slices and the identification information of the network slices supported by the neighboring cell.

[0147] Optionally, in some embodiments, the serving cell may indicate the weight information corresponding to multiple network slices via broadcast messages or dedicated messages. The weight information corresponding to the multiple network slices may be applicable to the serving cell, or it may be applicable to the serving cell and neighboring cells. In other embodiments, the weight information corresponding to the multiple network slices may be pre-configured.

[0148] Optionally, the weight information corresponding to the network slices supported by the serving cell can be determined based on the weight information corresponding to the multiple network slices and the identification information of the network slices supported by the serving cell, or the weight information corresponding to the network slices supported by the neighboring cell can also be determined based on the weight information corresponding to the multiple network slices and the identification information of the network slices supported by the neighboring cell.

[0149] Based on the network slice information of the terminal device, and combined with the frequency point information, cell information, priority information or weight information corresponding to the network slices supported by the serving cell and neighboring cells, cell reselection is performed. This helps to reselect cells or frequencies that support the network slices required by the terminal device, thereby ensuring the normal transmission of network slice services and improving user experience.

[0150] Optionally, the terminal device may also obtain cell reselection parameters, which are evaluation parameters selected during cell reselection.

[0151] As an example, the cell reselection parameters are first-type cell reselection parameters, which are unrelated to network slicing. Optionally, the first-type cell reselection parameters can be obtained from broadcast messages or dedicated signaling, such as RRC dedicated signaling. The first-type reselection parameters can be cell reselection parameters applicable to the serving cell, or cell reselection parameters applicable to both the serving cell and neighboring cells.

[0152] In another embodiment, the cell reselection parameters are second-type cell reselection parameters, which are related to network slices. For example, there may be at least one set of second-type cell reselection parameters, and each set of second-type cell reselection parameters may correspond to one or more network slices, that is, the second-type cell reselection parameters may be configured per network slice, per network slice group, or set. Alternatively, the at least one set of second-type cell reselection parameters may correspond to at least one network slice or at least one network slice group, that is, the at least one set of second-type cell reselection parameters may correspond to a specific network slice. Alternatively, the at least one set of second-type cell reselection parameters may be common cell reselection parameters, that is, the at least one set of second-type cell reselection parameters may correspond to all network slices.

[0153] Optionally, the second type of cell reselection parameters can be obtained from broadcast messages or dedicated signaling. For example, the dedicated signaling can be RRC dedicated signaling (e.g., RRC release signaling, RRC reconfiguration signaling, etc.), or the second type of cell reselection parameters can be pre-configured. The second type of reselection parameters can be cell reselection parameters applicable to the serving cell, or cell reselection parameters applicable to both the serving cell and neighboring cells.

[0154] In some embodiments, when the at least one set of second-type cell reselection parameters is not configured, the terminal device can perform cell reselection based on the first-type cell reselection parameters; when the at least one set of second-type cell reselection parameters is configured, the terminal device can perform cell reselection based on the at least one set of second-type cell reselection parameters. Alternatively, when the at least one set of second-type cell reselection parameters is configured, the terminal device performs cell reselection based on the second-type cell reselection parameters corresponding to a specific network slice. Alternatively, when the at least one set of second-type cell reselection parameters is configured, and the terminal device performs cell reselection based on a specific network slice, the terminal device can perform cell reselection based on the second-type cell reselection parameters corresponding to the specific network slice. Alternatively, when the at least one set of second-type cell reselection parameters is configured, the terminal device determines to use the second-type cell reselection parameters based on network indication information, and the terminal device performs cell reselection based on a specific network slice, the terminal device can perform cell reselection based on the second-type cell reselection parameters corresponding to the specific network slice. The specific implementation of the specific network slice is described below and will not be repeated here.

[0155] This application embodiment configures second-type cell reselection parameters related to network slicing. Furthermore, when performing cell reselection, it performs cell reselection based on the second-type cell reselection parameters corresponding to the network slice. This is beneficial for reselecting cells or frequencies that meet the cell reselection criteria and support the network slice required by the terminal device, thereby ensuring the normal transmission of network slice services and improving user experience.

[0156] The embodiments of this application do not limit the specific parameters included in the first type of cell reselection parameters and the second type of cell reselection parameters.

[0157] As an example, the first type of cell reselection parameters may include at least one of the cell reselection parameters in the foregoing embodiments, and the second type of cell reselection parameters may include at least one of the cell reselection parameters in the foregoing embodiments.

[0158] That is, the first type of cell reselection parameters and the second type of cell reselection parameters can be exactly the same as or partially the same as the cell reselection parameters in the broadcast message, and this application is not limited thereto.

[0159] As an example, the first type of cell reselection parameters may include, for example, the optimal cell range (e.g., rangeToBestCell), the reference signal merging threshold (e.g., absThreshSS-BlocksConsolidation), and of course, other parameters, which are not limited to this application.

[0160] As another example, the second type of cell reselection parameters may include, for example, the optimal cell range (e.g., rangeToBestCell), the reference signal merging threshold (e.g., absThreshSS-BlocksConsolidation), and of course, other parameters, which are not limited to this application.

[0161] It should be understood that, in the embodiments of this application, when a cell has multiple beams (or multiple reference signals), the signal quality of the cell can be the average of the signal strengths of the multiple reference signals, provided that the signal strength of each reference signal is greater than or equal to the reference signal merging threshold. That is, the signal strengths of reference signals whose signal strength is greater than or equal to the reference signal merging threshold can be included in the calculation of the average. In some cases, if the signal quality of all reference signals is less than the reference signal merging threshold, the signal quality of the cell can be determined based on the signal quality of the reference signal with the strongest signal quality.

[0162] For ease of description and explanation, in the embodiments of this application, a beam whose reference signal strength needs to be greater than the reference signal merging threshold is referred to as a high-quality beam.

[0163] Optionally, in some embodiments, the terminal device may also acquire frequency point priority information. Optionally, the frequency point priority information may include, for example, at least one frequency point or cell and its corresponding frequency point priority.

[0164] In some embodiments, the frequency priority information may be a first type of frequency priority information, unrelated to network slicing. Optionally, the first type of frequency priority information may be obtained from broadcast messages or dedicated signaling, such as RRC dedicated signaling, or it may be obtained through other messages or signaling; this application is not limited thereto. The first type of frequency priority information may be frequency priority information applicable to the serving cell, or frequency priority information applicable to both the serving cell and neighboring cells.

[0165] Optionally, in some embodiments, the first type of frequency point priority information may include cell reselection priority and / or cell reselection sub-priority. It should be noted that the cell reselection priority and cell reselection sub-priority here are not related to network slicing. The definitions of cell reselection priority and cell reselection sub-priority are as described above and will not be repeated here.

[0166] In other embodiments, the frequency point priority information may be a second type of frequency point priority information, which may include at least one frequency point or cell corresponding to a network slice (which may be one or more) and its corresponding frequency point priority information.

[0167] Optionally, in some embodiments, the second type of frequency priority information may be obtained from broadcast messages or dedicated signaling. The dedicated signaling may be, for example, the cell reselection or redirection information element (IE) in the RRC release message, or it may be obtained through other messages or signaling. This application is not limited to this.

[0168] Optionally, in some embodiments, the second type of frequency point priority information may include cell reselection priority and / or cell reselection sub-priority. It should be noted that the cell reselection priority and cell reselection sub-priority here are related to network slicing. The definitions of cell reselection priority and cell reselection sub-priority are as described above and will not be repeated here.

[0169] Optionally, when the second type of frequency point priority information is not configured, the terminal device can perform cell reselection based on the first type of frequency point priority information. When the second type of frequency point priority information is configured, the terminal device can perform cell reselection based on the second type of frequency point priority information. Alternatively, when the second type of frequency point priority information is configured and the terminal device performs cell reselection based on a specific network slice, the terminal device can perform cell reselection based on the second type of frequency point priority information corresponding to the frequency point of the specific network slice. Or, when the second type of frequency point priority information is configured and the terminal device determines to use the second type of frequency point priority information based on network indication information, the terminal device can perform cell reselection based on the second type of frequency point priority information corresponding to the frequency point of the specific network slice. The specific implementation of the specific network slice will be described below and will not be repeated here.

[0170] This application embodiment configures a second type of frequency point priority information related to network slicing. Furthermore, when performing cell reselection, it performs cell reselection based on the second type of frequency point priority information corresponding to the network slice. This is beneficial for reselecting cells or frequencies that meet the cell reselection criteria and support the network slice required by the terminal device, thereby ensuring the normal transmission of network slice services and improving user experience.

[0171] In this embodiment, the terminal device can perform cell reselection based on at least one of the following: network slice information, frequency priority information, channel quality of the cell, and beam quality within the cell. That is, the first information may include at least one of the aforementioned information. It should be understood that the beam quality can be determined based on the quality of the reference signal corresponding to the beam.

[0172] It should be understood that in the embodiments of this application, when cell reselection is performed based on the above-mentioned multiple information, this application does not limit the order in which the multiple information is used, or the above-mentioned multiple information can be used in combination, or some of the above-mentioned information can be used for cell reselection, and this application is not limited thereto.

[0173] Optionally, the terminal device may perform cell reselection based on at least one of the following: network slice information, frequency priority information, channel quality of the cell, and beam quality of the cell. This may include at least one of the following steps:

[0174] Step A: The terminal device performs cell reselection based on the network slice information of the terminal device;

[0175] Step B: The terminal device performs cell reselection based on frequency priority information;

[0176] Step C: The terminal device performs cell reselection based on the channel quality of the cell;

[0177] Step D: The terminal device performs cell reselection based on the quality of the beams in the cell.

[0178] In other words, the steps for cell reselection may include all of the above steps, or may only include some of them, such as only steps A, B and C.

[0179] It should be understood that this application does not limit the order in which the above steps are performed.

[0180] As an example, step A can precede at least one of steps B, C, and D.

[0181] As another example, step A may follow at least one of steps B, C, and D.

[0182] As yet another example, step A follows step B and precedes at least one of steps C and D.

[0183] As another example, step A follows at least one of steps B and C and precedes step D.

[0184] The following describes the implementation method of cell reselection according to the embodiments of this application, with reference to specific examples.

[0185] Example 1: The terminal device first determines the frequency priority, i.e., whether it should reselect a cell on the same frequency, a different frequency, or a different RAT. It then further combines the terminal device's network slice information and the cell's channel quality to perform cell reselection.

[0186] It should be understood that in practical applications, the step of determining frequency priority may not exist or may be an implicit step. Frequency priority information is only referred to when sorting cells. This application does not limit this.

[0187] It should be noted that when performing cell reselection based on the network slicing information of the terminal device and the channel quality of the cell, this application does not limit whether cell reselection is performed first based on the network slicing information of the terminal device, first based on the channel quality of the cell, or simultaneously referencing both pieces of information.

[0188] Scenario 1: Cell reselection scenario with the same frequency

[0189] Example 1-1: First, execute step A, then execute step C.

[0190] Specifically, the terminal device can first determine a first set of candidate cells that meet the network slicing conditions based on the network slicing information of the terminal device and / or the network slicing information supported by neighboring cells, and further determine the target cell for reselection by combining the channel quality information of the candidate cells in the first set of candidate cells.

[0191] Optionally, in some embodiments, the network slicing conditions may include at least one of the following:

[0192] Supported specific network slices for the terminal devices;

[0193] The terminal device supports the largest number of network slices;

[0194] Support the network slice with the highest weight value in the network slice of the terminal device;

[0195] The sum of the weight values ​​of multiple network slices of the supported terminal device is the largest.

[0196] Optionally, in some embodiments, the specific network slice includes at least one of the following:

[0197] Any network slice in the network slice information of the terminal device;

[0198] The network slice with the highest priority in the network slice of the terminal device;

[0199] The serving cell supports the highest priority network slice;

[0200] The network slice supported by the serving cell is the network slice that matches the network slice of the terminal device and has the highest priority.

[0201] In other words, the target cell needs to support a specific network slice in the first network slice set, or support the largest number of network slices in the first network slice set, or support a number of network slices in the first network slice set greater than a certain threshold, or support the network slice with the largest weight in the first network slice set, or support multiple network slices in the first network slice set, and the sum of the weight values ​​of the multiple network slices is the largest.

[0202] It should be understood that the network slicing conditions and specific network slices exemplified above are merely examples and can be adjusted according to actual needs. This application is not limited to these.

[0203] Optionally, in some embodiments, the terminal device may determine the target cell based on the channel quality information of the candidate cells in the first candidate cell set, combined with the optimal cell range or the first cell range.

[0204] As an example, if the optimal cell range, i.e., rangeToBestCell, is not configured, the terminal device can determine the target cell based on the channel quality information of the candidate cells in the first candidate cell set and the first cell range.

[0205] As another embodiment, if the optimal cell range, i.e., rangeToBestCell, is configured, the terminal device can determine the target cell based on the channel quality information of the candidate cells in the first candidate cell set and the optimal cell range or the first cell range.

[0206] Optionally, the range of the first cell may be pre-configured or determined by the terminal device.

[0207] Optionally, the first cell range can be based on a specific cell in the first candidate cell set. This specific cell could be, for example, the highest-ranked candidate cell, the highest-ranked neighbor cell with the most high-quality beams, or the highest-ranked neighbor cell supporting a specific network slice. The target cell can be a cell whose R value falls within a certain range of the R values ​​of the specific cell, and this certain range can be the first cell range.

[0208] Optionally, the optimal cell range can be based on a specific cell in the first candidate cell set. This specific cell could be, for example, the highest-ranked candidate cell, the highest-ranked neighbor cell with the most high-quality beams, or the highest-ranked neighbor cell supporting a specific network slice. The target cell can be a cell whose R value falls within a certain range of the R values ​​of the specific cell, and this certain range can be the optimal cell range.

[0209] Optionally, in other embodiments, the terminal device may also directly determine the candidate cell with the highest ranking in the first candidate cell set as the target cell, regardless of whether rangeToBestCell is configured.

[0210] Example 1-2: First, execute step C, then execute step A.

[0211] Specifically, the terminal device can first determine a first set of candidate cells whose channel quality meets certain conditions based on the channel quality information of at least one neighboring cell. Then, based on the network slicing information supported by the candidate cells in the first set and the network slicing information of the terminal device, it can determine a second set of candidate cells that meets the network slicing conditions. Finally, it can determine the target cell for reselection from the second set of candidate cells. The network slicing conditions are described in reference to Embodiment 1-1 and will not be repeated here.

[0212] Optionally, in some embodiments, the terminal device may determine the first candidate cell set based on the channel quality information of at least one neighboring cell, combined with the optimal cell range or the first cell range.

[0213] As an example, if the optimal cell range, i.e., rangeToBestCell, is not configured, the terminal device can determine the first candidate cell set based on the channel quality information of at least one neighboring cell and the first cell range.

[0214] As another embodiment, if the optimal cell range, i.e., rangeToBestCell, is configured, the terminal device can determine the first candidate cell set based on the channel quality information of the at least one neighboring cell and the optimal cell range or the first cell range.

[0215] Optionally, the range of the first cell may be pre-configured or determined by the terminal device.

[0216] Optionally, the first cell range can be based on a specific cell among at least one neighboring cell. This specific cell could be, for example, the highest-ranking neighboring cell, the highest-ranking neighboring cell with the most high-quality beams, or the highest-ranking neighboring cell supporting a specific network slice. The target cell can be a cell whose R value falls within a certain range of the R values ​​of the specific cell, and this certain range can be the first cell range.

[0217] Optionally, the optimal cell range can be based on a specific cell among at least one neighboring cell. This specific cell could be, for example, the highest-ranked candidate cell, the highest-ranked neighboring cell with the most high-quality beams, or the highest-ranked neighboring cell supporting a specific network slice. The target cell can be a cell whose R value falls within a certain range of the R values ​​of the specific cell, and this certain range can be the optimal cell range.

[0218] Optionally, in the above embodiments, when determining the target cell from the first candidate cell set, if the first candidate cell set includes only one cell, then that single cell can be determined as the target cell. Alternatively, if the candidate cell set includes multiple cells, the terminal device can further combine other information for selection. This other information may include, for example, network slice weight information, network slice priority information, the number of high-quality beams, channel quality, and the network slice information of the terminal device. For example, a cell that meets at least one of the following conditions can be determined as the target cell: supporting the network slice with the highest weight, having the largest sum of weights for supported network slices, having the largest number of high-quality beams, or having the best channel quality (i.e., being ranked highest).

[0219] In other words, after performing steps C and A, or after performing steps A and C, other steps can be performed to make further choices, such as performing step D, at least one of steps A and C.

[0220] Examples 1-3: First, execute step C, then execute step D, and then execute step A.

[0221] The terminal device can first determine a first set of candidate cells whose channel quality meets certain conditions based on the channel quality information of at least one neighboring cell. Then, based on the signal quality of the reference signals of the candidate cells in the first set of candidate cells and a reference signal merging threshold, it can determine a second set of candidate cells. Next, based on the network slicing information supported by the candidate cells in the second set of candidate cells and the network slicing information of the terminal device, it can determine a third set of candidate cells that meets the network slicing conditions. Finally, it can determine the target cell for reselection from the third set of candidate cells. The network slicing conditions are described in reference to Embodiment 1-1 and will not be repeated here.

[0222] Optionally, in some embodiments, the terminal device may determine the first candidate cell set based on the channel quality information of the candidate cells in the first candidate cell set, combined with the optimal cell range or the first cell range. Specific implementation details can be found in the description of Embodiments 1-1, and will not be repeated here. Alternatively, in other embodiments, the terminal device may also determine at least one cell ranked high in the first candidate cell set as the first candidate cell set.

[0223] Optionally, determining a second candidate cell set based on the signal quality of the reference signals of the candidate cells in the first candidate cell set, combined with a reference signal merging threshold, may include:

[0224] The candidate cell with the most high-quality beams in the first candidate cell set is determined as the second candidate cell set, or the candidate cell with the number of high-quality beams in the first candidate cell set is determined as the second candidate cell set.

[0225] Furthermore, when determining the target cell from the third candidate cell set, if the third candidate cell set includes only one cell, then that single cell can be determined as the target cell. Alternatively, if the third candidate cell set includes multiple cells, the terminal device can further combine other information for selection. This other information may include, for example, network slice weight information, network slice priority information, the number of high-quality beams, channel quality, and the network slice information of the terminal device. For instance, a cell that meets at least one of the following conditions can be determined as the target cell: supporting the network slice with the highest weight, having the largest sum of weights for supported network slices, having the largest number of high-quality beams, or having the best channel quality (i.e., being ranked highest).

[0226] In other words, after performing steps C, D, and A, further steps can be performed to make further choices, such as performing at least one of steps C, D, and A.

[0227] The following example illustrates how cell reselection can be implemented.

[0228] It should be noted that the network slicing conditions exemplified below are merely examples and can be other network slicing conditions from the aforementioned embodiments, such as supporting the highest priority slices, supporting the largest weights, or supporting the maximum sum of network slice weights, etc. Similarly, the channel quality conditions are also subject to these rules.

[0229] Example 1: If `rangeToBestCell` is not configured, the target cell is the highest-ranked cell that supports the specific network slice. For example, the terminal device can first determine the specific network slice, and then sort the cells from high to low based on the R criterion, identifying the highest-ranked cell that supports the specific network slice as the target cell.

[0230] Example 2: If `rangeToBestCell` is not configured, the target cell is the cell with the highest ranking and that supports a specific number of network slices. The terminal device can first sort the cells from high to low based on the R criterion, and determine the cell with the highest ranking and that supports a specific number of network slices as the target cell.

[0231] Example 3: If `rangeToBestCell` is not configured, the target cell is the cell that supports the most network slices of the terminal device's network, or supports a specific network slice, or supports a specific number of network slices, and the R value of the target cell is within the range of the first cell. For example, the terminal device sorts cells from highest to lowest based on the R criterion, determines the first cell with the highest ranking, and determines at least one second cell with an R value within the range of the first cell's R value based on the first cell's R value. The target cell is then determined from among these at least one second cell in conjunction with the network slice condition. Optionally, if multiple cells meet the conditions, further selection can be made by combining other information; for example, the cell with the highest ranking can be selected as the target cell.

[0232] Example 4: If the rangeToBestCell is configured, the target cell is the cell that supports the most slices for the terminal device, supports a specific number of network slices, and whose R value is within the rangeToBestCell of the highest-ranked cell's R value. For example, the terminal device can first sort cells from high to low based on the R criterion, determine the first cell with the highest ranking, and determine at least one second cell based on the R value of the first cell and the rangeToBestCell, wherein the R value of the at least one second cell is within a certain range (rangeToBestCell) of the R value of the first cell. Further, among the at least one second cell, the cell that supports the most slices for the terminal device or supports a specific number of network slices is selected as the target cell. Optionally, if multiple cells are determined, the cell with the most high-quality beams or the highest ranking can be further selected as the target cell.

[0233] Example 5: If the rangeToBestCell is configured, the target cell supports a specific network slice, and the R value of the target cell is within the rangeToBestCell of the highest-ranked cell's R value. For example, the terminal device can first sort the cells from high to low based on the R criterion, determine the first cell with the highest ranking, and determine at least one second cell based on the R value of the first cell and the rangeToBestCell, wherein the R value of the at least one second cell is within a certain range (rangeToBestCell) of the R value of the first cell. Further, a cell supporting a specific network slice is determined from the at least one second cell as the target cell. Optionally, if multiple cells are determined, the cell with the most high-quality beams or the highest-ranked cell can be further selected as the target cell.

[0234] Example 6: If the rangeToBestCell is configured, the target cell is the cell with the most high-quality beams, supports a specific network slice, and has an R value within the rangeToBestCell of the highest-ranked cell. For example, the terminal device can first sort the cells from high to low based on the R criterion, determine the first cell with the highest ranking, and determine at least one second cell based on the R value of the first cell and the rangeToBestCell, wherein the R value of the at least one second cell is within a certain range (rangeToBestCell) of the R value of the first cell. Further, among the at least one second cell, the cell that supports a specific network slice and has the most high-quality beams is selected as the target cell.

[0235] Example 7: If the rangeToBestCell is configured, the target cell is the cell with the most high-quality beams, supports a specific number of network slices, and has an R value within the rangeToBestCell of the highest-ranked cell's R value. For example, the terminal device can first sort the cells from high to low based on the R criterion, determine the first cell with the highest ranking, and then determine at least one second cell based on the R value of the first cell and the rangeToBestCell. The R value of the at least one second cell is within a certain range (rangeToBestCell) of the R value of the first cell. Further, among the at least one second cell, the cell that supports a specific number of network slices and has the most high-quality beams is selected as the target cell.

[0236] Example 8: If the rangeToBestCell is configured, the target cell can be the cell with the most high-quality beams, the most supported network slices, and whose R value is within the rangeToBestCell of the highest-ranked cell's R value. For example, the terminal device can first sort the cells from high to low based on the R criterion, determine the first cell with the highest ranking, and determine at least one second cell based on the R value of the first cell and the rangeToBestCell, wherein the R value of the at least one second cell is within a certain range (rangeToBestCell) of the R value of the first cell. Further, among the at least one second cell, the cell with the most supported network slices and the most high-quality beams is selected as the target cell.

[0237] Example 9: If the rangeToBestCell is configured, the target cell is the cell with the most high-quality beams, and the R value of the target cell is within the rangeToBestCell of the highest-ranked cell's R value. For example, the terminal device can first rank the cells from high to low based on the R criterion, determine the first cell ranked highest, and determine at least one second cell based on the R value of the first cell and the rangeToBestCell, wherein the R value of the at least one second cell is within a certain range (rangeToBestCell) of the R value of the first cell. Further, a third cell with the most supported network slices is determined from among the at least one second cell. If there is one third cell, that third cell can be determined as the target cell; or if there are multiple third cells, the cell among the multiple third cells that meets at least one of the following conditions can be determined as the target cell: ranked highest, supports a specific network slice, and supports the most network slices.

[0238] Example 10: If the rangeToBestCell configuration is provided, the terminal device first sorts the cells from highest to lowest based on the R criterion, then determines the highest-ranked first cell. Based on the R value of the first cell, it determines at least one second cell within a certain range (rangeToBestCell) of the R value of the first cell. Further, it determines the third cell with the most high-quality beams among the at least one second cell. If there are multiple third cells, the terminal device can optionally select the highest-ranked cell (denoted as the fourth cell) as the target cell. Alternatively, based on the R value of the fourth cell, it can determine at least one fifth cell within a certain range of the R value of the fourth cell, and further determine the cell among the at least one fifth cell that supports a specific network slice of the terminal device as the target cell. Alternatively, if there are multiple cells determined based on the above conditions, the highest-ranked cell can be selected as the target cell.

[0239] Example 11: If the rangeToBestCell configuration is configured, the terminal device first sorts the cells from highest to lowest based on the R criterion, determines the highest-ranked first cell, and then, based on the R value of the first cell, determines at least one second cell within a certain range (rangeToBestCell) of the R value of the first cell. Further, among the at least one second cell, a third cell with the most high-quality beams is determined. If there are multiple third cells, optionally, the terminal device can determine the highest-ranked cell (denoted as the fourth cell), further determine at least one fifth cell within a certain range of the R value of the fourth cell, and determine the at least one fifth cell that supports a specific number of network slices for the terminal device or supports the most network slices as the target cell. Alternatively, if there are multiple cells determined based on the above conditions, the highest-ranked cell can be selected as the target cell.

[0240] In summary, the network slices supported by the target cell determined by the cell reselection method according to the embodiments of this application can meet the aforementioned network slice conditions, and the channel quality of the target cell meets certain channel quality conditions, such as having the highest channel quality ranking, the largest number of high-quality beams in the cell, or the number of high-quality beams in the cell being greater than a certain threshold.

[0241] Scenario 2: Cell reselection scenario with different frequencies or different RATs

[0242] Scenario 1: The frequency priority of the neighboring cell is higher than that of the serving cell.

[0243] In this case, the terminal device can also perform cell reselection according to the cell reselection order described above.

[0244] Optionally, in this case, the channel quality of the target cell determined by the terminal device satisfies the first channel condition, and the network slice supported by the target cell satisfies the network slicing condition.

[0245] The specific implementation of the network slicing conditions can be found in the description of the foregoing embodiments, and will not be repeated here for the sake of brevity.

[0246] Optionally, the first channel quality condition includes:

[0247] The terminal device is configured with a first threshold (e.g., Thresh). X，HighQ And the channel quality of the neighboring cell is greater than the first threshold (e.g., Thresh). X，HighQ );

[0248] The terminal device is not configured with the first threshold (e.g., Thresh). X，HighQ And the channel quality of the neighboring cell is greater than the second threshold (e.g., Srxlev > Thresh). X，HighP ).

[0249] Scenario 2: The frequency priority of the neighboring cell is lower than that of the serving cell.

[0250] In this case, the terminal device can also perform cell reselection according to the cell reselection order described above.

[0251] Optionally, in this case, the channel quality of the target cell and serving cell determined by the terminal device satisfies the second channel condition, and the network slice supported by the target cell satisfies the network slicing condition.

[0252] The specific implementation of the network slicing conditions can be found in the description of the foregoing embodiments, and will not be repeated here for the sake of brevity.

[0253] Optionally, the second channel quality condition includes: the terminal device is configured with a third threshold (e.g., Thresh). Serving，LowQ And the channel quality of the serving cell is less than the third threshold (e.g., Squal < Thresh). Serving，LowQ The channel quality of the neighboring cell is greater than the fourth threshold (e.g., Squal > Thresh). x，LowQ );

[0254] The terminal device is not configured with the third threshold, and the channel quality of the serving cell is less than the fifth threshold (Srxlev < Thresh). Serving，LowP The channel quality of the neighboring cell is greater than the sixth threshold (e.g., Srxlev > Srxlev > Thresh). x，LowP ).

[0255] It should be understood that during cell reselection, in addition to the cell's channel quality needing to meet certain channel quality conditions, the duration of the cell's channel quality must also exceed a certain threshold, such as the reselection time parameter (e.g., Treselection). RAT ).

[0256] Example 2: First, the network slice conditions for cell reselection are determined based on the network slice information of the terminal device, and then cell reselection is performed based on frequency priority and cell channel quality.

[0257] The specific implementation of determining the network slice conditions for cell reselection based on the network slice information of the terminal device is described in the relevant description of Implementation Example 1, and will not be repeated here.

[0258] It should be understood that, in the embodiments of this application, when cell reselection is performed based on frequency point priority, if the network slicing conditions have been determined to be met at this time, the network slicing conditions include the need to support a specific network slice, and the terminal device is configured with a second type of frequency point priority information, the terminal device can perform cell reselection based on the second type of frequency point priority information corresponding to the specific network slice.

[0259] The specific cell reselection process can be found in the description of Implementation Example 1, which will not be repeated here for the sake of brevity.

[0260] Therefore, in this embodiment, the terminal device can perform cell reselection evaluation based on the terminal device's network slice information, frequency priority information, and cell channel quality. This facilitates reselection to a cell or frequency that supports the network slice required by the terminal device, thereby ensuring the normal transmission of network slice services and improving user experience.

[0261] The above text combined Figure 2 The method for cell reselection according to embodiments of this application is described in detail from the perspective of the terminal device. The following text combines... Figure 3 This application describes in detail a cell reselection method according to another embodiment of the present application from the perspective of a network device. It should be understood that the description on the network device side corresponds to the description on the terminal device side, and similar descriptions can be found above. To avoid repetition, they will not be repeated here.

[0262] Figure 3 This is a schematic flowchart of a cell reselection method 300 according to another embodiment of this application. The method 300 can be performed by… Figure 1 The network devices in the communication system shown perform the following actions: Figure 3 As shown, the method 300 includes the following:

[0263] S310, the network device sends second information to the terminal device, the second information being used to indicate network slice-related information, and the second information being used by the terminal device to perform cell reselection.

[0264] Optionally, in some embodiments, the second information includes at least one of the following:

[0265] The terminal device's serving cell supports the identification information of network slices;

[0266] Priority information of network slices supported by the serving cell;

[0267] The weight information of the network slices supported by the serving cell;

[0268] The identification information of network slices supported by at least one neighboring cell of the terminal device;

[0269] Priority information of network slices supported by at least one neighboring cell;

[0270] Weight information of network slices supported by at least one neighboring cell;

[0271] The second type of frequency priority information includes priority information for at least one frequency point or cell corresponding to at least one network slice;

[0272] At least one set of Type II cell reselection parameters related to network slicing.

[0273] Optionally, each group of second-type cell reselection parameters corresponds to one or more network slices; or

[0274] The at least one set of second-type cell reselection parameters corresponds to at least one network slice or network slice group; or

[0275] The at least one set of second-type cell reselection parameters corresponds to all network slices.

[0276] Optionally, the network device sends the second information via a broadcast message or a dedicated message.

[0277] It should be noted that the definition of the specific content in the second information can be found in the relevant definition in method 200, and will not be repeated here for the sake of brevity.

[0278] Figure 4 This is a schematic block diagram of a terminal device according to an embodiment of this application. Figure 4 The terminal equipment 400 includes:

[0279] Processing unit 410 is used to perform cell reselection based on the first information;

[0280] The first information includes at least one of the following: network slice information of the terminal device, frequency priority information, and channel quality information of at least one cell. The frequency priority information is used to indicate the priority information of a frequency or cell. The at least one cell includes the serving cell and / or neighboring cells of the terminal device.

[0281] Optionally, in some embodiments, the network slice information of the terminal device is network slice information supported by the terminal device, or network slice information selected by the terminal device, or pre-configured network slice information, or network slice information allowed by the terminal device, or network slice information registered by the terminal device, or network slice information desired by the terminal device; or

[0282] The network slice information of the terminal device is the union of at least two of the following: network slice information supported by the terminal device, network slice information selected by the terminal device, network slice information allowed by the terminal device, network slice information expected by the terminal device, and network slice information registered by the terminal device and pre-configured network slice information; or

[0283] The network slice information of the terminal device is the intersection of at least two of the following: the network slice information supported by the terminal device, the network slice information selected by the terminal device, the network slice information allowed by the terminal device, the network slice information expected by the terminal device, and the network slice information registered by the terminal device and the pre-configured network slice information.

[0284] Optionally, in some embodiments, the network slicing information of the terminal device includes at least one of the following:

[0285] Identification information for network slices;

[0286] Frequency information corresponding to network slices;

[0287] Cell information corresponding to network slices;

[0288] Priority information corresponding to network slices;

[0289] Weight information corresponding to network slices.

[0290] Optionally, the first information may further include network slice information supported by the serving cell and / or network slice information supported by the neighboring cells.

[0291] Optionally, the network slicing information supported by the serving cell includes at least one of the following:

[0292] The identification information of the network slices supported by the serving cell;

[0293] The frequency point information corresponding to the network slices supported by the serving cell;

[0294] The cell information corresponding to the network slices supported by the serving cell;

[0295] Priority information corresponding to the network slices supported by the serving cell;

[0296] The weight information corresponding to the network slices supported by the serving cell.

[0297] Optionally, in some embodiments, the network slice information supported by the neighboring cells includes at least one of the following:

[0298] The identification information of the network slices supported by the neighboring cells;

[0299] The frequency point information corresponding to the network slices supported by the neighboring cells;

[0300] The cell information corresponding to the network slices supported by the neighboring cells;

[0301] Priority information corresponding to the network slices supported by the neighboring cells;

[0302] The weight information corresponding to the network slices supported by the neighboring cells.

[0303] Optionally, the first information further includes cell reselection parameters, wherein the cell reselection parameters are either first-type cell reselection parameters or second-type cell reselection parameters; wherein the first-type cell reselection parameters are not related to network slices and include at least one of the cell reselection parameters in the broadcast message; the second-type cell reselection parameters are in at least one set, each set of second-type cell reselection parameters corresponds to one or more network slices, or the at least one set of second-type cell reselection parameters corresponds to at least one network slice or at least one group of network slices, or the at least one set of second-type cell reselection parameters corresponds to all network slices, and the second-type cell reselection parameters include at least one of the cell reselection parameters in the broadcast message.

[0304] Optionally, the broadcast message includes at least one of system information blocks SIB2, SIB3, SIB4, and SIB5.

[0305] Optionally, the cell reselection parameters include at least one of the following: optimal cell range, reference signal merging threshold, cell reselection priority, cell reselection sub-priority, high priority relaxation measurement indication, number of beams that the highest-ranked cell can use for reselection, cell offset, frequency offset of co-frequency priority, hysteresis value for R criterion, additional offset for cell selection or reselection, minimum required quality level, minimum received level, and received level offset.

[0306] Optionally, in some embodiments, when the terminal device is not configured with the at least one set of second-type cell reselection parameters, the terminal device performs cell reselection according to the first-type cell reselection parameters;

[0307] When the terminal device is configured with the at least one set of second-type cell reselection parameters, the terminal device performs cell reselection according to the first-type cell reselection parameters or the at least one set of second-type cell reselection parameters, or performs cell reselection according to the instructions of the network device using the at least one set of second-type cell reselection parameters.

[0308] Optionally, in some embodiments, the processing unit 410 is specifically used for:

[0309] The terminal device performs cell reselection based on its network slice information before performing cell reselection based on at least one of the frequency priority information, the channel quality information of the at least one cell, and the beam quality information of the at least one cell; or

[0310] The terminal device performs cell reselection based on its network slice information after performing cell reselection based on at least one of the frequency priority information, the channel quality information of the at least one cell, and the beam quality information of the at least one cell; or

[0311] The terminal device performs cell reselection based on its network slice information after performing cell reselection based on the frequency priority information, but before performing cell reselection based on at least one of the channel quality information and beam quality information of the at least one cell; or

[0312] The terminal device performs cell reselection based on the network slice information of the terminal device, after performing cell reselection based on at least one of the frequency priority information and the channel quality information of the at least one cell, and before performing cell reselection based on the beam quality information of the at least one cell.

[0313] Optionally, in some embodiments, the processing unit 410 is further configured to:

[0314] Based on the frequency priority information, the target frequency priority of at least one neighboring cell of the terminal device is determined;

[0315] Cell reselection is performed based on the target frequency priority of the at least one neighboring cell, the network slice information of the terminal device, and the channel quality information of the at least one neighboring cell.

[0316] Optionally, in some embodiments, the target frequency priority of the at least one neighboring cell is the same as the frequency priority of the serving cell, and the processing unit 410 is further configured to:

[0317] Based on the network slicing information of the terminal device and the network slicing information supported by the at least one neighboring cell, a first set of candidate cells that meets the network slicing conditions is determined.

[0318] The target cell for reselection is determined based on the channel quality information of the candidate cells in the first candidate cell set.

[0319] Optionally, in some embodiments, the processing unit 410 is specifically used for:

[0320] Based on the channel quality information of the candidate cells in the first candidate cell set, and in combination with the optimal cell range or the first cell range, a second candidate cell set is determined.

[0321] Based on the second candidate cell set, the target cell for reselection is determined.

[0322] Optionally, in some embodiments, when the terminal device is configured with the optimal cell range, the processing unit 410 determines the second candidate cell set based on the optimal cell range;

[0323] If the terminal device is not configured with the optimal cell range, the processing unit 410 determines the second candidate cell set based on the first cell range, or determines that at least one candidate cell with the best channel quality in the first candidate cell set constitutes the second candidate cell set.

[0324] Optionally, in some embodiments, the frequency priority of the at least one neighboring cell is the same as the frequency priority of the serving cell, and the processing unit 410 is further configured to:

[0325] A first candidate cell set is determined based on the channel quality information of the at least one neighboring cell;

[0326] Based on the network slicing information supported by the candidate cells in the first candidate cell set and the network slicing information of the terminal device, a second candidate cell set that meets the network slicing conditions is determined.

[0327] Based on the second candidate cell set, the target cell for reselection is determined.

[0328] Optionally, in some embodiments, the processing unit 410 is further configured to:

[0329] Based on the channel quality information of the at least one neighboring cell, and in conjunction with the optimal cell range or the first cell range, the first candidate cell set is determined.

[0330] Optionally, in some embodiments, when the terminal device is configured with the optimal cell range, the processing unit 410 determines the first candidate cell set based on the optimal cell range;

[0331] If the terminal device is not configured with the optimal cell range, the processing unit 410 determines the first candidate cell set or determines at least one neighboring cell with the best channel quality to constitute the first candidate cell set based on the first cell range.

[0332] Optionally, in some embodiments, the processing unit 410 is further configured to:

[0333] The target cell for reselection is determined from the second candidate cell set based on at least one of the following:

[0334] Reference signal merging threshold;

[0335] Network slice information supported by the candidate cells in the second candidate cell set;

[0336] Channel quality information of candidate cells in the second candidate cell set;

[0337] The second residential area.

[0338] Optionally, in some embodiments, the second cell range is based on the candidate cell with the best channel quality in the second candidate cell set, or on the candidate cell with the best channel quality and the largest number of beams that meets the reference signal combining threshold.

[0339] Optionally, in some embodiments, the frequency priority of the at least one neighboring cell is the same as the frequency priority of the serving cell, and the processing unit 410 is further configured to:

[0340] A first candidate cell set is determined based on the channel quality information of the at least one neighboring cell;

[0341] A second candidate cell set is determined based on the signal quality of the reference signals of the candidate cells in the first candidate cell set and the reference signal merging threshold.

[0342] Based on the network slicing information supported by the candidate cells in the second candidate cell set and the network slicing information of the terminal device, a third candidate cell set that meets the network slicing conditions is determined.

[0343] The target cell to be reselected is determined based on the third candidate cell set.

[0344] Optionally, in some embodiments, the first cell range is based on the candidate cell with the best channel quality in the first candidate cell set or the candidate cell with the best channel quality and the largest number of beams that meets the reference signal combining threshold.

[0345] Optionally, in some embodiments, the frequency priority of the at least one neighboring cell is the same as the frequency priority of the serving cell, including:

[0346] The at least one neighboring cell and the serving cell have the same frequency, or the at least one neighboring cell and the serving cell have different frequencies or different systems, but the at least one neighboring cell and the serving cell have the same frequency priority.

[0347] Optionally, in some embodiments, the frequency priority of the at least one neighboring cell is higher than the frequency priority of the serving cell, and the processing unit 410 is further configured to:

[0348] Based on the channel quality information of the at least one neighboring cell and the network slice information supported by the at least one neighboring cell, a first set of candidate cells is determined whose channel quality meets the first channel quality condition and whose supported network slices meet the network slice condition.

[0349] The target cell for reselection is determined from the first candidate cell set.

[0350] Optionally, in some embodiments, the first channel quality condition includes:

[0351] The terminal device is configured with a first threshold, and the channel quality of the neighboring cell is greater than the first threshold;

[0352] The terminal device is not configured with the first threshold, and the channel quality of the neighboring cell is greater than the second threshold.

[0353] Optionally, in some embodiments, the frequency priority of the at least one neighboring cell is lower than the frequency priority of the serving cell, and the processing unit 410 is further configured to:

[0354] Based on the channel quality information of the at least one neighboring cell and the channel quality information of the serving cell, a second set of candidate cells that meets the second channel quality condition and whose supported network slices meet the network slice condition is determined.

[0355] The target cell for reselection is determined from the second candidate cell set.

[0356] Optionally, in some embodiments, the second channel quality condition includes:

[0357] The terminal device is configured with a third threshold, the channel quality of the serving cell is less than the third threshold, and the channel quality of the neighboring cell is greater than the fourth threshold;

[0358] The terminal device is not configured with the third threshold, the channel quality of the serving cell is less than the fifth threshold, and the channel quality of the neighboring cell is greater than the sixth threshold.

[0359] Optionally, in some embodiments, the processing unit 410 is further configured to:

[0360] Based on the network slice information of the terminal device, determine the network slice conditions used for cell reselection;

[0361] Cell reselection is performed based on the frequency priority and channel quality information of the at least one neighboring cell, combined with the network slicing conditions.

[0362] Optionally, in some embodiments, the processing unit 410 is further configured to:

[0363] Determine a first set of candidate cells whose channel quality meets the channel quality conditions and whose supported network slices meet the network slice conditions.

[0364] The target cell for reselection is determined from the first candidate cell set.

[0365] Optionally, in some embodiments, the network slices supported by the target cell meet the network slicing conditions, and the channel quality of the target cell meets the channel quality conditions.

[0366] Optionally, in some embodiments, the network slicing conditions include at least one of the following:

[0367] Supported specific network slices for the terminal devices;

[0368] The terminal device supports the largest number of network slices;

[0369] Support the network slice with the highest weight value in the network slice of the terminal device;

[0370] The sum of the weight values ​​of multiple network slices of the supported terminal device is the largest.

[0371] Optionally, in some embodiments, the specific network slice includes at least one of the following:

[0372] Any network slice in the network slice information of the terminal device;

[0373] The network slice with the highest priority in the network slice of the terminal device;

[0374] The serving cell supports the highest priority network slice;

[0375] The network slice supported by the serving cell is the network slice that matches the network slice of the terminal device and has the highest priority.

[0376] Optionally, in some embodiments, the terminal device 400 further includes:

[0377] A communication unit is used to obtain the priority information of the network slice of the terminal device from the non-access stratum (NAS) messages of the core network;

[0378] The processing unit 410 is further configured to: determine the priority information of the network slice of the terminal device according to the service requirements of the terminal device.

[0379] Optionally, in some embodiments, the communication unit is further configured to:

[0380] Obtain the weight information of the network slice of the terminal device from the non-access stratum (NAS) messages of the core network;

[0381] The processing unit 410 is further configured to: determine the weight information of the network slice of the terminal device according to the service requirements of the terminal device.

[0382] Optionally, in some embodiments, the channel quality conditions include at least one of the following:

[0383] The channel quality is ranked highest.

[0384] The cell has the largest number of beams that meet the reference signal merging threshold.

[0385] Optionally, in some embodiments, the communication unit is further configured to perform at least one of the following:

[0386] Priority information of network slices supported by the serving cell and / or at least one neighboring cell is received via broadcast message or dedicated message;

[0387] The weight information of the network slices supported by the serving cell and / or at least one neighboring cell is received via broadcast message or dedicated message.

[0388] Optionally, in some embodiments, the frequency point priority information is a first type of frequency point priority information or a second type of frequency point priority information. The first type of frequency point priority information includes priority information of at least one frequency point or cell, and the second type of frequency point priority information includes priority information of at least one frequency point or cell corresponding to at least one network slice.

[0389] Optionally, in some embodiments, the second type of frequency point priority information is configured via broadcast messages or Radio Resource Control (RRC) dedicated signaling, or the second type of frequency point priority information is pre-configured.

[0390] Optionally, in some embodiments, when the terminal device is not configured with the second type of frequency point priority information, the processing unit 410 performs cell reselection based on the first type of frequency point priority information;

[0391] When the terminal device is configured with the second type of frequency priority information or based on the instruction of the network device, the processing unit 410 performs cell reselection according to the second type of frequency priority information.

[0392] Optionally, in some embodiments, the communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip. The processing unit may be one or more processors.

[0393] It should be understood that the terminal device 400 according to the embodiments of this application may correspond to the terminal device in the method embodiments of this application, and the above and other operations and / or functions of each unit in the terminal device 400 are respectively for implementing Figure 2 The corresponding process of the terminal device in method 200 shown will not be described in detail here for the sake of brevity.

[0394] Figure 5 This is a schematic block diagram of a network device according to an embodiment of this application. Figure 5 The network equipment 500 includes:

[0395] The communication unit 510 is used to send second information to the terminal device, the second information being used to indicate network slice-related information, and the second information being used by the terminal device to perform cell reselection.

[0396] Optionally, in some embodiments, the second information includes at least one of the following:

[0397] The terminal device's serving cell supports the identification information of network slices;

[0398] Priority information of network slices supported by the serving cell;

[0399] The weight information of the network slices supported by the serving cell;

[0400] The identification information of network slices supported by at least one neighboring cell of the terminal device;

[0401] Priority information of network slices supported by at least one neighboring cell;

[0402] Weight information of network slices supported by at least one neighboring cell;

[0403] The second type of frequency priority information includes priority information for at least one frequency point or cell corresponding to at least one network slice; and at least one set of second type cell reselection parameters related to the network slice.

[0404] Optionally, in some embodiments, each group of second-type cell reselection parameters corresponds to one or more network slices; or

[0405] The at least one set of second-type cell reselection parameters corresponds to at least one network slice or network slice group; or

[0406] The at least one set of second-type cell reselection parameters corresponds to all network slices.

[0407] Optionally, in some embodiments, the network device sends the second information via a broadcast message or a private message.

[0408] Optionally, in some embodiments, the communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip. The processing unit may be one or more processors.

[0409] It should be understood that the network device 500 according to the embodiments of this application may correspond to the network device in the method embodiments of this application, and the above and other operations and / or functions of each unit in the network device 500 are respectively for implementing Figure 3 The corresponding procedures for network devices in method 300 shown are not described in detail here for the sake of brevity.

[0410] Figure 6 This is a schematic structural diagram of a communication device 600 provided in an embodiment of this application. Figure 6 The communication device 600 shown includes a processor 610, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0411] Optionally, such as Figure 6 As shown, the communication device 600 may further include a memory 620. The processor 610 can retrieve and run computer programs from the memory 620 to implement the methods described in this embodiment.

[0412] The memory 620 can be a separate device independent of the processor 610, or it can be integrated into the processor 610.

[0413] Optionally, such as Figure 6As shown, the communication device 600 may also include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices. Specifically, it may send information or data to other devices or receive information or data sent by other devices.

[0414] The transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include antennas, and the number of antennas may be one or more.

[0415] Optionally, the communication device 600 may specifically be a network device in the embodiments of this application, and the communication device 600 may implement the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0416] Optionally, the communication device 600 may specifically be a mobile terminal / terminal device in the embodiments of this application, and the communication device 600 may implement the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0417] Figure 7 This is a schematic structural diagram of the chip according to an embodiment of this application. Figure 7 The chip 700 shown includes a processor 710, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0418] Optionally, such as Figure 7 As shown, chip 700 may further include memory 720. Processor 710 can retrieve and run computer programs from memory 720 to implement the methods described in this embodiment.

[0419] The memory 720 can be a separate device independent of the processor 710, or it can be integrated into the processor 710.

[0420] Optionally, the chip 700 may also include an input interface 730. The processor 710 can control the input interface 730 to communicate with other devices or chips; specifically, it can acquire information or data sent by other devices or chips.

[0421] Optionally, the chip 700 may also include an output interface 740. The processor 710 can control the output interface 740 to communicate with other devices or chips, specifically, to output information or data to other devices or chips.

[0422] Optionally, the chip can be applied to the network device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0423] Optionally, the chip can be applied to the mobile terminal / terminal device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0424] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0425] Figure 8 This is a schematic block diagram of a communication system 900 provided in an embodiment of this application. Figure 8 As shown, the communication system 900 includes a terminal device 910 and a network device 920.

[0426] The terminal device 910 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 920 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, these will not be elaborated here.

[0427] It should be understood that the processor in the embodiments of this application may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method embodiments can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor described above can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.

[0428] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0429] It should be understood that the above-described memory is exemplary and not a limiting description. For example, the memory in the embodiments of this application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DR RAM), etc. That is to say, the memory in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0430] This application also provides a computer-readable storage medium for storing computer programs.

[0431] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0432] Optionally, the computer-readable storage medium can be applied to the mobile terminal / terminal device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0433] This application also provides a computer program product, including computer program instructions.

[0434] Optionally, the computer program product can be applied to the network device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

[0435] Optionally, the computer program product can be applied to the mobile terminal / terminal device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

[0436] This application also provides a computer program.

[0437] Optionally, the computer program can be applied to the network device in the embodiments of this application. When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0438] Optionally, the computer program can be applied to the mobile terminal / terminal device in the embodiments of this application. When the computer program is run on a computer, it causes the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0439] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0440] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0441] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0442] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0443] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0444] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0445] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for cell reselection, characterized in that, include: The terminal device performs cell reselection based on the first information; The first information includes network slice information, frequency priority information, and channel quality information of at least one cell of the terminal device. The network slice information of the terminal device is either network slice information supported by the terminal device or network slice information selected by the terminal device. The frequency priority information is used to indicate the priority information of a frequency or cell. The at least one cell includes the serving cell and / or neighboring cells of the terminal device. The frequency point priority information is either a first type of frequency point priority information or a second type of frequency point priority information. The first type of frequency point priority information includes priority information for at least one frequency point or cell, and the second type of frequency point priority information includes priority information for at least one frequency point or cell corresponding to at least one network slice. The method further includes: When the second type of frequency point priority information is not configured, the terminal device performs cell reselection based on the first type of frequency point priority information; when the second type of frequency point priority information is configured and the terminal device performs cell reselection based on a specific network slice, the terminal device performs cell reselection based on the second type of frequency point priority information corresponding to the frequency point of the specific network slice; or, when the second type of frequency point priority information is configured and the terminal device determines to use the second type of frequency point priority information based on network indication information, the terminal device performs cell reselection based on the second type of frequency point priority information corresponding to the frequency point of the specific network slice. The specific network slice includes at least one of the following: Any one of the network slices in the network slice information of the terminal device; The network slice with the highest priority in the network slice information of the terminal device; The network slice supported by the serving cell is the network slice that matches the network slice information of the terminal device and has the highest priority.

2. The method according to claim 1, characterized in that, The network slicing information of the terminal device includes at least one of the following: Identification information for network slices; Frequency information corresponding to network slices; Cell information corresponding to network slices; Priority information corresponding to network slices; Weight information corresponding to network slices.

3. The method according to claim 1 or 2, characterized in that, The first information also includes network slice information supported by the serving cell and / or network slice information supported by the neighboring cells.

4. The method according to claim 1, characterized in that, The network slicing information supported by the serving cell includes at least one of the following: The identification information of the network slices supported by the serving cell; The frequency point information corresponding to the network slices supported by the serving cell; The cell information corresponding to the network slices supported by the serving cell; Priority information corresponding to the network slices supported by the serving cell; The weight information corresponding to the network slices supported by the serving cell.

5. The method according to claim 1 or 4, characterized in that, The network slice information supported by the neighboring cell includes at least one of the following: The identification information of the network slices supported by the neighboring cells; The frequency point information corresponding to the network slices supported by the neighboring cells; The cell information corresponding to the network slices supported by the neighboring cells; Priority information corresponding to the network slices supported by the neighboring cells; The weight information corresponding to the network slices supported by the neighboring cells.

6. The method according to any one of claims 1, 2, and 4, characterized in that, The first information also includes: cell reselection parameters, wherein the cell reselection parameters are either first-type cell reselection parameters or second-type cell reselection parameters; The first type of cell reselection parameters are not related to network slices and include at least one of the cell reselection parameters in the broadcast message; The second type of cell reselection parameters have at least one set, each set of second type cell reselection parameters corresponds to one or more network slices, or the at least one set of second type cell reselection parameters corresponds to at least one network slice or at least one group of network slices, or the at least one set of second type cell reselection parameters corresponds to all network slices, and the second type of cell reselection parameters include at least one of the cell reselection parameters in the broadcast message.

7. The method according to claim 6, characterized in that, The broadcast message includes at least one of System Information Block SIB2, System Information Block SIB3, System Information Block SIB4, and System Information Block SIB5.

8. The method according to claim 6, characterized in that, The cell reselection parameters include at least one of the following: Optimal cell range, reference signal merging threshold, cell reselection priority, cell reselection sub-priority, high priority relaxation measurement indication, number of beams available for reselection for the highest-ranked cell, cell offset, frequency offset for co-frequency priority, hysteresis value for R criterion, additional offset for cell selection or reselection, minimum required quality level, minimum received level, received level offset.

9. The method according to claim 6, characterized in that, When the terminal device is not configured with the at least one set of second-type cell reselection parameters, the terminal device performs cell reselection according to the first-type cell reselection parameters; When the terminal device is configured with the at least one set of second-type cell reselection parameters, the terminal device performs cell reselection according to the first-type cell reselection parameters or the at least one set of second-type cell reselection parameters, or performs cell reselection according to the instructions of the network device using the at least one set of second-type cell reselection parameters.

10. The method according to any one of claims 1, 2, and 4, characterized in that, The terminal device performs cell reselection based on the first information, including: The terminal device determines the target frequency priority of at least one neighboring cell based on the frequency priority information. Cell reselection is performed based on the target frequency priority of the at least one neighboring cell, the network slice information of the terminal device, and the channel quality information of the at least one neighboring cell.

11. The method according to claim 10, characterized in that, The target frequency priority of the at least one neighboring cell is the same as the frequency priority of the serving cell. The cell reselection based on the target frequency priority of the at least one neighboring cell, the network slice information of the terminal device, and the channel quality information of the at least one neighboring cell includes: The terminal device determines a first set of candidate cells that meet the network slicing conditions based on the network slicing information of the terminal device and the network slicing information supported by the at least one neighboring cell. The terminal device determines the target cell for reselection based on the channel quality information of the candidate cells in the first candidate cell set.

12. The method according to claim 11, characterized in that, The terminal device determines the target cell for reselection based on the channel quality information of the candidate cells in the first candidate cell set, including: The terminal device determines a second candidate cell set based on the channel quality information of the candidate cells in the first candidate cell set, combined with the optimal cell range or the first cell range. Based on the second candidate cell set, the target cell for reselection is determined.

13. The method according to claim 12, characterized in that, When the terminal device is configured with the optimal cell range, the terminal device determines the second candidate cell set based on the optimal cell range; If the terminal device does not configure the optimal cell range, the terminal device determines the second candidate cell set based on the first cell range, or determines at least one candidate cell with the best channel quality in the first candidate cell set to constitute the second candidate cell set.

14. The method according to claim 10, characterized in that, The target frequency priority of the at least one neighboring cell is the same as the frequency priority of the serving cell. The cell reselection based on the target frequency priority of the at least one neighboring cell, the network slice information of the terminal device, and the channel quality information of the at least one neighboring cell includes: A first candidate cell set is determined based on the channel quality information of the at least one neighboring cell; Based on the network slicing information supported by the candidate cells in the first candidate cell set and the network slicing information of the terminal device, a second candidate cell set that meets the network slicing conditions is determined. Based on the second candidate cell set, the target cell for reselection is determined.

15. The method according to claim 14, characterized in that, Based on the channel quality information of the at least one neighboring cell, a first candidate cell set is determined, including: Based on the channel quality information of the at least one neighboring cell, and in combination with the optimal cell range or the first cell range, the first candidate cell set is determined.

16. The method according to claim 14, characterized in that, When the terminal device is configured with an optimal cell range, the terminal device determines the first candidate cell set based on the optimal cell range; If the terminal device does not configure the optimal cell range, the terminal device determines the first candidate cell set based on the first cell range, or determines at least one candidate cell with the best channel quality to constitute the first candidate cell set.

17. The method according to claim 12, characterized in that, The step of determining the target cell for reselection based on the second candidate cell set includes: The target cell for reselection is determined from the second candidate cell set based on at least one of the following: Reference signal merging threshold; Network slice information supported by the candidate cells in the second candidate cell set; Channel quality information of candidate cells in the second candidate cell set; The second residential area.

18. The method according to claim 17, characterized in that, The second cell range is based on the candidate cell with the best channel quality in the second candidate cell set, or the candidate cell with the best channel quality and the largest number of beams that meets the reference signal combining threshold.

19. The method according to claim 10, characterized in that, The target frequency priority of the at least one neighboring cell is the same as the frequency priority of the serving cell. The cell reselection based on the target frequency priority of the at least one neighboring cell, the network slice information of the terminal device, and the channel quality information of the at least one neighboring cell includes: A first candidate cell set is determined based on the channel quality information of the at least one neighboring cell; A second candidate cell set is determined based on the signal quality of the reference signals of the candidate cells in the first candidate cell set and the reference signal merging threshold. Based on the network slicing information supported by the candidate cells in the second candidate cell set and the network slicing information of the terminal device, a third candidate cell set that meets the network slicing conditions is determined. Based on the third candidate cell set, the target cell for reselection is determined.

20. The method according to claim 13, characterized in that, The first cell range is based on the candidate cell with the best channel quality in the first candidate cell set, or the candidate cell with the best channel quality and the largest number of beams that meets the reference signal combining threshold.

21. The method according to claim 11, characterized in that, The target frequency priority of at least one neighboring cell is the same as the frequency priority of the serving cell, including: The at least one neighboring cell and the serving cell have the same frequency, or the at least one neighboring cell and the serving cell have different frequencies or different systems, but the at least one neighboring cell and the serving cell have the same frequency priority.

22. The method according to claim 10, characterized in that, The target frequency priority of the at least one neighboring cell is higher than the frequency priority of the serving cell. The cell reselection based on the target frequency priority of the at least one neighboring cell, the network slice information of the terminal device, and the channel quality information of the at least one neighboring cell includes: The terminal device determines a first set of candidate cells whose channel quality meets the first channel quality condition and whose supported network slices meet the network slice condition based on the channel quality information of the at least one neighboring cell and the network slice information supported by the at least one neighboring cell. The target cell for reselection is determined from the first candidate cell set.

23. The method according to claim 22, characterized in that, The first channel quality conditions include: The terminal device is configured with a first threshold, and the channel quality of the neighboring cell is greater than the first threshold; The terminal device is not configured with the first threshold, and the channel quality of the neighboring cell is greater than the second threshold.

24. The method according to claim 10, characterized in that, The target frequency priority of the at least one neighboring cell is lower than the frequency priority of the serving cell. The cell reselection based on the target frequency priority of the at least one neighboring cell, the network slice information of the terminal device, and the channel quality information of the at least one neighboring cell includes: The terminal device determines a second set of candidate cells that meet the second channel quality condition and whose supported network slices meet the network slice condition, based on the channel quality information of the at least one neighboring cell and the channel quality information of the serving cell. The target cell for reselection is determined from the second candidate cell set.

25. The method according to claim 24, characterized in that, The second channel quality condition includes: The terminal device is configured with a third threshold, the channel quality of the serving cell is less than the third threshold, and the channel quality of the neighboring cells is greater than the fourth threshold; The terminal device is not configured with the third threshold, the channel quality of the serving cell is less than the fifth threshold, and the channel quality of the neighboring cells is greater than the sixth threshold.

26. The method according to any one of claims 1, 2, and 4, characterized in that, The terminal device performs cell reselection based on the first information, including: The terminal device determines the network slice conditions for cell reselection based on the network slice information of the terminal device. Cell reselection is performed based on the frequency priority and channel quality information of the at least one neighboring cell, combined with the network slicing conditions.

27. The method according to claim 26, characterized in that, The cell reselection process, based on the frequency priority and channel quality information of the at least one neighboring cell, combined with the network slicing conditions, includes: The terminal device determines a first set of candidate cells whose channel quality meets the channel quality conditions and whose supported network slices meet the network slice conditions. The target cell for reselection is determined from the first candidate cell set.

28. The method according to claim 11, characterized in that, The network slices supported by the target cell meet the network slicing conditions, and the channel quality of the target cell meets the channel quality conditions.

29. The method according to claim 28, characterized in that, The network slicing conditions include at least one of the following: The specific network slice supported by the terminal device; The terminal device supports the largest number of network slices; Support the network slice with the highest weight value in the network slice of the terminal device; The sum of the weight values ​​of multiple network slices of the supported terminal device is the largest.

30. The method according to claim 29, characterized in that, The method further includes: The terminal device obtains the network slice priority information of the terminal device from the non-access stratum (NAS) message of the core network; or The terminal device determines the priority information of the network slice based on its service requirements.

31. The method according to claim 29, characterized in that, The method further includes: The terminal device obtains the network slice weight information of the terminal device from the non-access stratum (NAS) message of the core network; or The terminal device determines the weight information of the network slice based on its service requirements.

32. The method according to claim 28, characterized in that, The channel quality conditions include at least one of the following: The channel quality is ranked highest. The cell has the largest number of beams that meet the reference signal merging threshold.

33. The method according to claim 29, characterized in that, The method further includes at least one of the following: The terminal device receives priority information of the network slices supported by the serving cell and / or at least one neighboring cell via broadcast messages or dedicated messages; The terminal device receives weight information of network slices supported by the serving cell and / or at least one neighboring cell via broadcast messages or dedicated messages.

34. The method according to claim 1, characterized in that, The second type of frequency point priority information is configured via broadcast messages or Radio Resource Control (RRC) dedicated signaling, or the second type of frequency point priority information is pre-configured.

35. A terminal device, characterized in that, include: The processing unit is used to perform cell reselection based on the first information; The first information includes at least one of the following: network slice information of the terminal device, frequency priority information, and channel quality information of at least one cell. The network slice information of the terminal device is either network slice information supported by the terminal device or network slice information selected by the terminal device. The frequency priority information is used to indicate the priority information of a frequency or cell. The at least one cell includes the serving cell and / or neighboring cells of the terminal device. The frequency point priority information is either a first type of frequency point priority information or a second type of frequency point priority information. The first type of frequency point priority information includes priority information for at least one frequency point or cell, and the second type of frequency point priority information includes priority information for at least one frequency point or cell corresponding to at least one network slice. The processing unit is also used for: When the second type of frequency point priority information is not configured, cell reselection is performed based on the first type of frequency point priority information; when the second type of frequency point priority information is configured and cell reselection is performed based on a specific network slice, cell reselection is performed based on the second type of frequency point priority information corresponding to the frequency point of the specific network slice; or, when the second type of frequency point priority information is configured and the use of the second type of frequency point priority information is determined based on network indication information, cell reselection is performed based on the second type of frequency point priority information corresponding to the frequency point of the specific network slice. The specific network slice includes at least one of the following: Any one of the network slices in the network slice information of the terminal device; The network slice with the highest priority in the network slice information of the terminal device; The network slice supported by the serving cell is the network slice that matches the network slice information of the terminal device and has the highest priority.

36. A terminal device, characterized in that, include: A processor and a memory for storing a computer program, the processor for calling and running the computer program stored in the memory to perform the method as described in any one of claims 1 to 34.

37. A chip, characterized in that, include: A processor for retrieving and running a computer program from memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 1 to 34.

38. A computer-readable storage medium, characterized in that, Used to store a computer program that causes a computer to perform the method as described in any one of claims 1 to 34.

39. A computer program product, characterized in that, It includes computer program instructions that cause a computer to perform the method as described in any one of claims 1 to 34.

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