Cell reselection method and apparatus

Abstract

Embodiments of the present disclosure disclose a cell reselection method and apparatus. The method includes: receiving indication information for indicating the priorities of various network types; and performing cell reselection based on the indication information. By adopting the embodiments of the present disclosure, cell reselection can be flexibly performed based on the priorities of various network types, and the applicability is high.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular, to a cell reselection method and apparatus. Background Art

[0002] With the continuous development of communication technologies, both non-terrestrial networks (NTN) and terrestrial networks (TN) need to provide services for terminal devices. Therefore, the terminal device needs to perform cell reselection within NTN and TN. Among them, NTN includes communication networks of types such as geostationary earth orbiting (GEO) satellite networks, low earth orbiting (LEO) satellite networks, and medium earth orbiting (MEO) satellite networks.

[0003] For the same network mode, if different network types (TN, GEO satellite network, LEO satellite network, MEO satellite network, etc.) correspond to different frequencies, the terminal device can select the priority of the network type to access according to the frequency priority during cell reselection. However, when different network types use the same frequency, the network cannot configure the terminal device to reselect to a specific network type during cell reselection, resulting in low flexibility.

[0004] Therefore, how to improve the flexibility of cell reselection has become an urgent problem to be solved. Summary of the Invention

[0005] Embodiments of the present disclosure provide a cell reselection method and apparatus, which can improve the flexibility of cell reselection and have high applicability.

[0006] In a first aspect, an embodiment of the present disclosure provides a cell reselection method applied to a terminal device. The method includes:

[0007] Receiving indication information, where the indication information is used to indicate the priority of each network type;

[0008] Performing cell reselection based on the indication information.

[0009] In a second aspect, an embodiment of the present disclosure provides a cell reselection method applied to a network device. The method includes:

[0010] Sending indication information, where the indication information is used for the terminal device to perform cell reselection, and the indication information is used to indicate the priority of each network type.

[0011] In a third aspect, an embodiment of the present disclosure provides a cell reselection apparatus, and the apparatus includes:

[0012] A receiving unit, configured to receive indication information for indicating the priorities of various network types.

[0013] A selection unit, configured to perform cell reselection based on the indication information.

[0014] In a fourth aspect, an embodiment of the present disclosure provides a cell reselection apparatus, including:

[0015] A sending unit, configured to send indication information for the terminal device to perform cell reselection, where the indication information is used to indicate the priorities of various network types.

[0016] In a fifth aspect, an embodiment of the present disclosure provides a terminal device, including a processor and a memory, where the processor and the memory are connected to each other;

[0017] The memory is configured to store a computer program;

[0018] The processor is configured to execute the method provided in the first aspect when calling the computer program.

[0019] In a sixth aspect, an embodiment of the present disclosure provides a network device, including a processor and a memory, where the processor and the memory are connected to each other;

[0020] The memory is configured to store a computer program;

[0021] The processor is configured to execute the method provided in the second aspect when calling the computer program.

[0022] In a sixth aspect, an embodiment of the present disclosure provides a computer-readable storage medium storing a computer program, where the computer program is executed by a processor to implement the method provided in any one of the first aspect and / or the second aspect.

[0023] In the embodiments of the present disclosure, the terminal device can perform cell reselection based on the priorities of various network types, which can improve the flexibility of cell reselection and has high applicability. Description of the Drawings

[0024] To more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for the embodiments. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 It is a communication network architecture diagram provided by an embodiment of the present disclosure;

[0026] Figure 2 is a timing schematic diagram of the cell reselection method provided by the present disclosure;

[0027] Figure 3 is a schematic diagram of a scenario of cell reselection provided by an embodiment of the present disclosure;

[0028] Figure 4 is another schematic diagram of a scenario of cell reselection provided by an embodiment of the present disclosure;

[0029] Figure 5 is a schematic structural diagram of a cell reselection device provided by an embodiment of the present disclosure;

[0030] Figure 6 is another schematic structural diagram of a cell reselection device provided by an embodiment of the present disclosure;

[0031] Figure 7 is a schematic structural diagram of a terminal device provided by an embodiment of the present disclosure;

[0032] Figure 8 is a schematic structural diagram of a network device provided by an embodiment of the present disclosure. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present disclosure will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present disclosure without creative efforts shall fall within the protection scope of the present disclosure.

[0034] See Figure 1 , Figure 1 is a communication network architecture diagram provided by an embodiment of the present disclosure. In Figure 1 , in the same network mode, NTN110 and TN120 can be included simultaneously. Among them, communication can be carried out between NTN110 and TN120 according to the needs of the actual communication scenario, and both NTN110 and TN120 can provide services for the terminal device 130. That is to say, when the terminal device 130 performs cell reselection, it needs to select a cell to camp on in a certain network type among NTN110 and TN120. Among them, NTN110 includes different network types such as GEO satellite network, LEO satellite network, and MEO satellite network. TN120 is composed of different network devices on land.

[0035] Among them, the communication network architecture provided by the embodiments of the present disclosure can be applicable to a variety of communication systems. For example, the applicable systems can be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) general packet radio service (GPRS) system, a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, a long term evolution advanced (LTE-A) system, a universal mobile telecommunication system (UMTS), a worldwide interoperability for microwave access (WiMAX) system, a 3rd generation partnership project (3GPP) related cellular system, a 5th generation (5G) mobile communication system, and subsequent evolved communication systems. Among them, 5G can also be referred to as new radio (NR).

[0036] The terminal device 130 involved in the embodiments of the present disclosure may be a device that provides voice and / or data connectivity to users, such as a handheld device with wireless connection capabilities, or other processing devices connected to a wireless modem, as well as terminals in future 5G systems or terminal devices in future evolved public land mobile networks (PLMNs). In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be referred to as a user equipment (UE). It can also be a wireless terminal device that can communicate with one or more core networks (CNs) via a radio access network (RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it can be a portable, pocket-sized, handheld, computer-integrated, or vehicle-mounted mobile device that exchanges voice and / or data with the radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiated protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), etc. are not limited in the embodiments of the present disclosure. The wireless terminal device can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile, remote station, access point, remote terminal, access terminal, user terminal, user agent, user device, which is not limited in the embodiments of the present disclosure.

[0037] In the embodiments of the present disclosure, the network device related to TN120 may be a base station, which may include multiple cells that provide services to terminal devices. According to different specific application scenarios, the base station may also be referred to as an access point, or may be a device in the access network that communicates with wireless terminal devices through one or more sectors over the air interface, or have other names. The network device can be used to mutually replace the received air frames and Internet Protocol (IP) packets, and act as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network device can also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present disclosure may be a network device (Base Transceiver Station, BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), or may be a network device (NodeB) in a Wide-band Code Division Multiple Access (WCDMA), or may also be an evolved network device (evolutional Node B, eNB or e-NodeB) in a Long Term Evolution (LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), or may be a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc. The embodiments of the present disclosure do not limit this. In some network architectures, the network device may include a centralized unit (centralized unit, CU) node and a distributed unit (distributed unit, DU) node, and the centralized unit and the distributed unit may also be arranged separately geographically.

[0038] Among them, in NTN110, the network devices in different network types may include the network devices involved in TN120, or other electronic devices, apparatuses, etc. that have the same or similar functions as the network devices in TN120, which are not limited here.

[0039] See Figure 2 , Figure 2 is a timing schematic diagram of the cell reselection method provided by the embodiments of the present disclosure. As Figure 2 shown, the cell reselection method provided by the embodiments of the present disclosure may include the following steps:

[0040] S1. Send indication information.

[0041] In some feasible embodiments, the indication information is used to indicate the priorities of various network types, where the network types include at least one of a geosynchronous orbit satellite network, a medium earth orbit satellite network, a low earth orbit satellite network, and a terrestrial network. The network device can obtain relevant information for determining the priorities of various network types, and the relevant information for determining the priorities of various network types can include at least one of the reporting information of the terminal device, the capability information of the terminal device, and the network configuration policy. The network device then determines the priorities of various network types based on at least one of the reporting information of the terminal device, the capability information of the terminal device, and the network configuration policies of various types of networks.

[0042] Among them, multiple network types can correspond to the same priority at the same time. For example, the geosynchronous orbit satellite network and the terrestrial network can correspond to the highest priority at the same time, or each network type can correspond to different priorities. The specific determination method of the priorities of various network types and the specific division of the priority granularity can be determined based on the above-mentioned relevant information and the actual application scenario, and are not limited here.

[0043] Optionally, the network device can determine the network type that the terminal device expects to camp on based on the reporting information of the terminal device, and then determine the priorities of various network types based on the network type that the terminal device expects to camp on. Among them, the priority of the network type that the terminal device expects to camp on is higher than that of other network types. For example, if the network device determines through the reporting information that the terminal device expects to camp on the terrestrial network, the priority of the terrestrial network can be determined as the highest priority. The reporting information indicates the network type that the terminal device expects to camp on, and the network device can obtain it from the auxiliary information reported by the terminal device to the network device, or can also obtain the reporting information by adopting a corresponding acquisition method according to the actual sending method of the terminal device, which is not limited here.

[0044] Furthermore, the reporting information can also indicate multiple network types that the terminal device expects to camp on, and the expected degree of the terminal device to camp on each network type. The higher the expected degree, the more the terminal device expects to camp on the corresponding network type. Therefore, the network device can determine the priorities of various network types based on the network types that the terminal device expects to camp on and the corresponding expected degrees, and the higher the expected degree, the higher the priority of the corresponding network type.

[0045] Optionally, the network device may determine the priorities of each network type based on the capability information of the terminal device. The capability information of the terminal device may be related information characterizing the capabilities of the terminal device. The capabilities of the terminal device may include Packet Data Convergence Protocol (PDCP) capabilities (such as the compression header types supported by the terminal device), transport channel capabilities (such as the maximum transport channel, received bits, etc.), and measurement capabilities (such as multi-carrier frequency measurement), inter-system Packet Switch (PS) domain handover capabilities, Multimedia Broadcast Multicast Service (MBMS) reception capabilities, Carrier Aggregation (CA) capabilities, etc.

[0046] The capability information of the terminal device may further include the band combinations supported by the terminal device, the modulation methods supported by the terminal device on the carriers of these band combinations, multiple-input multiple-output (MIMO) capabilities, and the related information of the corresponding radio access technology of the terminal device, such as the terminal supports one or more radio technologies. The capability information of the terminal device may also include the power level of the terminal device (such as the maximum output power) and the up / down service capability level (the number of bits of the downlink shared channel transport block that can be received per transmission time interval, the number of bits of each transmission block of the downlink shared channel that can be received per transmission time interval, and the number of bits of the up / down shared channel transport block that can be sent per transmission time interval), etc., which are not limited herein.

[0047] It should be particularly noted that in the embodiments of the present disclosure, the capability information of the terminal device may include one or more of the above information, which may be specifically determined based on the actual application scenario and is not limited herein.

[0048] Furthermore, the network device may determine the priorities of each network type based on the specific content of the capability information. For example, the capability information of the terminal device includes the maximum output power of the terminal device, and different output powers (or ranges) correspond to different priorities. The higher the maximum output power of the terminal device, the higher the corresponding priority. When the output power of the terminal device is relatively high, the priority of the satellite network with a relatively high orbital altitude (such as the GEO satellite network) may be determined as the highest priority. When the maximum output power of the terminal device is relatively low, it is more power-saving for the terminal device to camp on the satellite network with a relatively low orbital altitude (such as the LEO satellite network). Therefore, the network device may determine the priority of the LEO satellite network as the highest priority.

[0049] For another example, the capability information of the terminal device includes two modulation methods supported by the terminal device. The network device may determine the priority of the network types that support both of these modulation methods simultaneously as the highest priority, and determine the priority of the network types that do not support the above two modulation methods as the lowest priority. The priority of the network types that support one of the modulation methods is determined as the intermediate priority.

[0050] It should be specifically noted that the above method for determining the priority of network types is only an example and is not limited in the embodiments of the present disclosure.

[0051] Optionally, the network device may determine the priority of each network type based on the network configuration policies of each network type. Among them, the network configuration policy may be manifested as the device types that can access each network type, the number of terminal devices accessing each network type, etc., which can be specifically determined based on the actual application scenario and are not limited here.

[0052] For example, when the terminal device is a mobile phone, the network device may determine that the priority of the terrestrial network is the highest. When the terminal device is a vehicle navigation device, the network device determines that the priority of the satellite network is the highest. For another example, the network device determines the number of terminal devices currently accessing each network type, and determines the priority of the network type with fewer accessed terminal devices as the highest priority, that is, the fewer the number of accessed terminal devices, the higher the priority of the corresponding network type.

[0053] It should be specifically noted that the above network configuration policy may include one or more configuration policies. For example, the network device determines the priority of each network type based on one configuration policy, and then re-orders the network types with the same priority in the current priority based on another configuration policy to obtain the final priority of each network type. Among them, the above method for determining the priority of each network type based on the network configuration policy is only an example, and can be specifically determined based on the actual network configuration policy and is not limited here.

[0054] Optionally, the network device may also determine the priority of each network type based on multiple items among the reported information of the terminal device, the capability information of the terminal, and the network configuration policy. For example, the network device determines that the priority of the network type that the terminal device expects to camp on is the highest priority based on the reported information of the terminal device, further determines the priority of each network type among the remaining network types based on the capability information of the terminal device, and when there are multiple network types with the same priority, the network device re-divides the network types with the same current priority based on the network configuration policy.

[0055] It should be specifically noted that the specific method of determining the priority of each network type based on one or more of the above-mentioned reporting information of the terminal device, the capability information of the terminal, and the network configuration policy is only an example, and can be specifically determined based on the actual application scenario, and is not limited herein.

[0056] In some feasible embodiments, the network device sends system information including the above-mentioned indication information to the terminal device, so that the terminal device performs cell reselection based on the indication information. That is, the network device can carry the above-mentioned indication information in the system message sent to the terminal device. For example, the above-mentioned indication information is carried in the system information block (SIB) sent through the downlink shared channel in the system message, such as the indication information is carried in SIB2 and SIB3.

[0057] Optionally, the network device can also carry the above-mentioned indication information in the radio resource control (RRC) message sent to the terminal device, such as carrying the indication information in the RRC release message.

[0058] It should be specifically noted that the specific method for the network device to send the indication information to the terminal device can be determined based on the actual application scenario and the communication network structure, and is not limited herein.

[0059] S2. Perform cell reselection based on the indication information.

[0060] In some feasible embodiments, the terminal device can receive the indication information for indicating the priority of each network type based on the system message or RRC message sent by the network device, and then perform cell reselection based on the above-mentioned indication information.

[0061] Specifically, after receiving the above-mentioned indication information, the terminal device can determine the priority of each network type based on the indication information, and then based on the priority of each network type, as well as the S criterion and the R criterion, determine the target cell for cell reselection. That is, the terminal device determines the cells that the terminal device can select based on the S criterion, and determines the target cell for cell reselection from the cells that the terminal device can select based on the R criterion.

[0062] In some feasible embodiments, after receiving the above-mentioned indication information, the terminal device can determine the priority of each network type based on the indication information, and at the same time determine the frequency priority of the frequencies corresponding to each network type. Among them, the terminal device can determine the frequency priority of the frequencies corresponding to each network type according to the frequency priority indicated by the network device. Or in the case where the network device does not indicate the frequency priority of the frequencies corresponding to each network type, the terminal device can determine the frequency priority of the frequencies corresponding to each network type according to the frequencies corresponding to each network type.

[0063] Among them, the network device can, based on the above indication information, simultaneously indicate the frequency priority levels of the frequencies corresponding to each network type, so that the terminal device can determine the frequency priority levels of the frequencies corresponding to each network type based on the above indication information. Alternatively, the network device can also send the configuration information for indicating the frequency priority levels of the frequencies corresponding to each network type to the terminal device in the form of system messages or RRC messages, etc., so that the terminal device can determine the frequency priority levels of the frequencies corresponding to each network type based on the frequency priority configuration information.

[0064] Specifically, if the terminal device determines that the frequency priority levels of the frequencies corresponding to each network type are different, the terminal device determines the target cell for cell reselection based on the frequency priority levels of the frequencies corresponding to each network type, the S criterion, and the R criterion.

[0065] Specifically, if the terminal device determines that the frequency priority levels of the frequencies corresponding to each network type are the same, that is, the frequencies corresponding to each network type all correspond to the same frequency priority level, the terminal device can determine the target cell for cell reselection based on the priority levels of each network type, the above S criterion, and the above R criterion.

[0066] Specifically, when the terminal device determines the target cell for cell reselection based on the priority levels of each network type, the S criterion, and the R criterion, the terminal device can determine, based on the priority levels of each network type, the cell that satisfies the S criterion and has the highest R value of the R criterion as the target cell for cell reselection.

[0067] That is to say, the terminal device can determine the cells that satisfy the S criterion among the cells corresponding to all network types, and further determine the R values of the R criterion corresponding to each cell that satisfies the S criterion. The terminal device can determine the cell with the highest R value of the R criterion as the target cell for cell reselection. When there are multiple cells with the highest R value, the cell with the highest priority level of the network type among the cells with the same R value is determined as the target cell for cell reselection.

[0068] See Figure 3 , Figure 3 is a schematic diagram of a scenario of cell reselection provided by an embodiment of the present disclosure. As Figure 3As shown in the figure, the first priority is higher than the second priority. The terminal device determines cells cell-1, cell-2, and cell-3 that meet the S criterion from the cells of the network type corresponding to the first priority. At the same time, cells cell-7, cell-8, and cell-9 that meet the S criterion are determined from the cells of the network type corresponding to the second priority. The terminal device further determines the R values of cells cell-1, cell-2, cell-3, cell-7, cell-8, and cell-9 corresponding to the R criterion. When the R value of cell-2 is the highest value, the terminal device can determine cell-2 as the target cell for cell reselection; when the R values of cell-2 and cell-9 are both the highest values, since the priority of the network type corresponding to cell-2 is higher than the priority of the network type corresponding to cell-9, the terminal device can determine cell-2 as the target cell for cell reselection.

[0069] Optionally, the terminal device can determine the network type of the cells that meet the S criterion, and further determine the network type with the highest priority among the network types of the cells that meet the S criterion. The terminal device can determine the cell with the highest R value among all the cells that meet the S criterion in the network type with the highest priority as the target cell for cell reselection.

[0070] That is to say, the terminal device determines all the cells that meet the S criterion in the network type corresponding to the first priority, and further determines the R values corresponding to each cell among all the cells that meet the S criterion based on the R criterion. At this time, the terminal device can determine the cell with the highest R value among the cells that meet the S criterion as the target cell for cell reselection. If the terminal device does not determine a cell that meets the S criterion in the network type corresponding to the first priority, then in the same way, in the network type corresponding to the second priority, the cell with the highest R value among the cells that meet the S criterion is determined as the target cell for cell reselection. If no cell that meets the S criterion is determined in the network type corresponding to the second priority, then in the network type corresponding to the next priority level of the second priority, a cell that meets the S criterion is determined until the target cell for cell reselection is determined based on the above method. Among them, the second priority is lower than the first priority.

[0071] See Figure 4 , Figure 4 is another schematic diagram of the cell reselection scenario provided by the embodiments of the present disclosure. As Figure 4As shown in the figure, when the terminal device determines three cells, namely cell-1, cell-2, and cell-3, that meet the S criterion among the multiple cells corresponding to the network type with the highest priority, the terminal device will no longer perform cell reselection in the cells corresponding to other network types with priorities lower than the highest priority. At this time, the terminal device respectively determines the R values corresponding to cell-1, cell-2, and cell-3 according to the R criterion. If the R value of cell-2 is the largest, the terminal device determines cell-2 as the target cell for cell reselection, that is, the terminal device will access and camp on cell-2.

[0072] Optionally, the terminal device can determine the cells that meet the S criterion among the cells corresponding to all network types, and further determine the R values corresponding to the R criterion for each cell that meets the S criterion. The terminal device determines the priority of the network type corresponding to each cell that meets the S criterion, and determines the cell with the highest R value among one or more cells that meet the S criterion corresponding to the network type with the highest priority as the target cell for cell reselection.

[0073] In some feasible implementation manners, when performing cell reselection based on the priority of the network type, the S criterion, and the R criterion, the terminal device can first determine the network types that support cell reselection among each network type, and then determine the target cell for cell reselection based on the network types that support cell reselection, their priorities, the S criterion, and the R criterion. The judgment condition for the terminal device to determine the network types that support cell reselection among each network type can be whether the access volume of the terminal device in the cells of this network type reaches the threshold, whether this network type supports the access of the current terminal device, etc., which can be specifically determined based on the actual application scenario and is not limited here.

[0074] In some feasible implementation manners, if the terminal device does not receive the indication information for indicating the priority of each network type, it can determine the frequency priority of the frequency corresponding to each network type based on the frequency of each network type, or determine the frequency priority of the frequency corresponding to each network type through the frequency priority configuration information sent by the network device, and then determine the target cell for cell reselection based on the frequency priority, the S criterion, and the R criterion. Among them, the network device determines the frequency priority of the frequency corresponding to each network type according to the frequency corresponding to each network type, and sends the frequency priority configuration information to the terminal device in the form of a system message or an RRC message, etc., to indicate the frequency priority of the frequency corresponding to each network type through the frequency priority configuration information.

[0075] Among them, the specific implementation manner for the terminal device to perform cell reselection based on the frequency priority of each network type is the same as the implementation manner for the terminal device to perform cell reselection based on the priority of the network type, and will not be elaborated here.

[0076] In the embodiments of the present disclosure, the network device determines the priorities of each network type based on one or more of the reporting information, capability information, and network configuration policies of the terminal device, enabling the network device to determine the priorities of each network type in different application scenarios, with high applicability. At the same time, when the frequency priorities of each network type are the same, the terminal device can perform cell reselection based on the priorities of each network type, further enhancing the flexibility and applicability of cell reselection.

[0077] See Figure 5 , Figure 5 is a schematic structural diagram of a cell reselection device provided by an embodiment of the present disclosure. The cell reselection device 1 provided by the embodiment of the present disclosure includes:

[0078] A receiving unit 11, configured to receive indication information, where the indication information is used to indicate the priorities of each network type;

[0079] A selection unit 12, configured to perform cell reselection based on the indication information.

[0080] In some feasible implementation manners, the above network types include at least one of a geosynchronous orbit satellite network, a medium earth orbit satellite network, a low earth orbit satellite network, and a terrestrial network.

[0081] In some feasible implementation manners, the above selection unit 12 is configured to:

[0082] Based on the S criterion, the R criterion, and the indication information, determine the target cell for cell reselection.

[0083] In some feasible implementation manners, the above selection unit 12 is configured to:

[0084] According to the indication information, determine the priorities of the above network types;

[0085] Determine the frequency priorities of the frequencies corresponding to the above network types;

[0086] When the frequency priorities of the frequencies corresponding to the above network types are the same, then based on the priorities of the above network types, the S criterion, and the R criterion, determine the target cell for cell reselection.

[0087] In some feasible implementation manners, the above selection unit 12 is configured to:

[0088] Based on the priorities of the above network types, determine the cell that satisfies the S criterion and has the highest R value of the R criterion as the target cell for cell reselection.

[0089] In some feasible implementation manners, the above selection unit 12 is configured to:

[0090] Determine the network type of the cell that meets the S criterion;

[0091] Among the network types of the cells that meet the S criterion, determine the cell with the highest R value of the R criterion corresponding to the network type with the highest priority as the target cell for cell reselection.

[0092] In some feasible embodiments, the above selection unit 12 is further configured to:

[0093] When the frequency priorities of the frequencies corresponding to the above network types are different, determine the target cell for cell reselection based on the frequency priorities of the frequencies corresponding to the above network types, the above S criterion, and the above R criterion.

[0094] In some feasible embodiments, the priority of the above network types is determined by at least one of the following information:

[0095] The reporting information of the above terminal device; the capability information of the above terminal device; the network configuration policy;

[0096] Wherein, the above reporting information indicates the network type that the above terminal device expects to camp on.

[0097] In some feasible embodiments, the above selection unit 12 is configured to:

[0098] Receive a system message, where the above indication information is included in the above system message;

[0099] Receive a Radio Resource Control (RRC) message, where the above indication information is included in the above RRC message.

[0100] See Figure 6 , Figure 6 is another schematic structural diagram of the cell reselection device provided by the embodiments of the present disclosure. The cell reselection device 2 provided by the embodiments of the present disclosure includes:

[0101] A sending unit 21, configured to send indication information, where the above indication information is used for the terminal device to perform cell reselection, and the above indication information is used to indicate the priorities of the above network types.

[0102] In some feasible embodiments, the above network types include at least one of a geosynchronous orbit satellite network, a medium earth orbit satellite network, a low earth orbit satellite network, and a terrestrial network.

[0103] In some feasible embodiments, the above cell reselection device 2 further includes an obtaining unit 22, configured to:

[0104] Obtain relevant information for determining the priorities of the above network types;

[0105] Determine the priorities of the above network types according to the above relevant information;

[0106] Among them, the above relevant information includes at least one of the following:

[0107] The reporting information of the above terminal device; the capability information of the above terminal device; the network configuration policy;

[0108] Among them, the above reporting information indicates the network type that the above terminal device expects to camp on.

[0109] In some possible implementation manners, the above sending unit 21 is used for:

[0110] Send a system message including indication information;

[0111] Send an RRC message including the above indication information.

[0112] In the embodiments of the present disclosure, the network device determines the priorities of the network types through one or more of the reporting information, capability information, and network configuration policy of the terminal device, which enables the network device to determine the priorities of the network types in different application scenarios, and has high applicability. At the same time, when the frequency priorities of the network types are the same, the terminal device can perform cell reselection based on the priorities of the network types, further improving the flexibility and applicability of cell reselection.

[0113] See Figure 7 , Figure 7 is a schematic structural diagram of a terminal device provided by an embodiment of the present disclosure. As Figure 7 shown, the terminal device 1000 in this embodiment may include: a processor 1001, a network interface 1004, and a memory 1005. In addition, the above terminal device 1000 may further include: a user interface 1003 and at least one communication bus 1002. Among them, the communication bus 1002 is used to implement connection communication between these components. Among them, the user interface 1003 may include a display screen (Display) and a keyboard (Keyboard). Optionally, the user interface 1003 may further include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface). The memory 1004 may be a high-speed RAM memory or a non-volatile memory, such as at least one disk memory. The memory 1005 may optionally be at least one storage device located far from the aforementioned processor 1001. As Figure 7 shown, the memory 1005 as a computer-readable storage medium may include an operating system, a network communication module, a user interface module, and a device control application program.

[0114] In Figure 7 the terminal device 1000 shown in the figure, the network interface 1004 can provide network communication functions; the user interface 1003 is mainly used to provide an input interface for users; and the processor 1001 can be used to call the device control application program stored in the memory 1005 to implement:

[0115] Receiving indication information, where the indication information is used to indicate the priorities of each network type;

[0116] Performing cell reselection based on the above indication information.

[0117] In some feasible implementation manners, the above network types include at least one of a geosynchronous orbit satellite network, a medium earth orbit satellite network, a low earth orbit satellite network, and a terrestrial network.

[0118] In some feasible implementation manners, the above processor 1001 is used for:

[0119] Determining a target cell for cell reselection based on the S criterion, the R criterion, and the above indication information.

[0120] In some feasible implementation manners, the above processor 1001 is used for:

[0121] Determining the priorities of the above network types according to the above indication information;

[0122] Determining the frequency priorities of the frequencies corresponding to the above network types;

[0123] When the frequency priorities of the frequencies corresponding to the above network types are the same, then determining a target cell for cell reselection based on the priorities of the above network types, the S criterion, and the R criterion.

[0124] In some feasible implementation manners, the above processor 1001 is used for:

[0125] Based on the priorities of the above network types, determining the cell that satisfies the S criterion and has the highest R value of the R criterion as the target cell for cell reselection.

[0126] In some feasible implementation manners, the above processor 1001 is used for:

[0127] Determining the network type in which there is a cell that satisfies the S criterion;

[0128] Determining the cell with the highest R value of the R criterion corresponding to the network type with the highest priority among the network types in which there is a cell that satisfies the S criterion as the target cell for cell reselection.

[0129] In some feasible implementation manners, the above processor 1001 is further used for:

[0130] When the frequency priorities of the frequencies corresponding to the above network types are different, the target cell for cell reselection is determined based on the frequency priorities of the frequencies corresponding to the above network types, the above S criterion, and the above R criterion.

[0131] In some possible implementation manners, the priorities of the above network types are determined by at least one of the following information:

[0132] The reporting information of the above terminal device; the capability information of the above terminal device; the network configuration policy;

[0133] Among them, the above reporting information indicates the network type that the above terminal device expects to camp on.

[0134] In some possible implementation manners, the above processor 1001 is further configured to:

[0135] Receive a system message, where the above indication information is included in the system message;

[0136] Receive a radio resource control (RRC) message, where the above indication information is included in the RRC message.

[0137] It should be understood that in some possible implementation manners, the above processor 1001 may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The memory may include a read-only memory and a random access memory, and provide instructions and data to the processor. A part of the memory may also include a non-volatile random access memory. For example, the memory may also store information about the device type.

[0138] See Figure 8 , Figure 8 is a schematic structural diagram of a network device provided by an embodiment of the present disclosure. As Figure 8As shown in the figure, the network device 1100 in this embodiment may include: a processor 1101, a network interface 1104, and a memory 1105. In addition, the above network device 1100 may further include: a user interface 1103 and at least one communication bus 1102. Among them, the communication bus 1102 is used to realize the connection and communication between these components. Among them, the user interface 1103 may include a display screen (Display) and a keyboard (Keyboard). Optionally, the user interface 1103 may further include a standard wired interface and a wireless interface. The network interface 1104 may optionally include a standard wired interface and a wireless interface (such as a WI-FI interface). The memory 1104 may be a high-speed RAM memory or a non-volatile memory, such as at least one disk memory. The memory 1105 may optionally be at least one storage device located far from the aforementioned processor 1101. As Figure 8 shown, the memory 1105, as a computer-readable storage medium, may include an operating system, a network communication module, a user interface module, and a device control application program.

[0139] In Figure 8 the network device 1100 shown in the figure, the network interface 1104 can provide network communication functions; while the user interface 1103 is mainly used to provide an input interface for users; and the processor 1101 can be used to call the device control application program stored in the memory 1105 to implement:

[0140] Sending indication information, where the above indication information is used for the terminal device to perform cell reselection, and the above indication information is used to indicate the priorities of each network type.

[0141] In some feasible implementation manners, the above network types include at least one of a geosynchronous orbit satellite network, a medium earth orbit satellite network, a low earth orbit satellite network, and a terrestrial network.

[0142] In some feasible implementation manners, the above processor 1101 is further used to:

[0143] Obtain relevant information for determining the priorities of the above network types;

[0144] Determine the priorities of the above network types according to the above relevant information;

[0145] Among them, the above relevant information includes at least one of the following:

[0146] The reporting information of the above terminal device; the capability information of the above terminal device; the network configuration policy;

[0147] Among them, the above reporting information indicates the network type that the above terminal device expects to camp on.

[0148] In some feasible embodiments, the above-mentioned processor 1101 is configured to:

[0149] Send a system message including indication information;

[0150] Send an RRC message including the above-mentioned indication information.

[0151] It should be understood that in some feasible embodiments, the above-mentioned processor 1101 may be a central processing unit (CPU), and this processor may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or this processor may also be any conventional processor, etc. The memory may include a read-only memory and a random access memory, and provide instructions and data to the processor. A part of the memory may also include a non-volatile random access memory. For example, the memory may also store information about the device type.

[0152] In the embodiments of the present disclosure, the network device determines the priority of each network type through one or more of the reporting information, capability information, and network configuration policy of the terminal device, which enables the network device to determine the priority of each network type in different application scenarios, and has high applicability. At the same time, when the frequency priorities of each network type are the same, the terminal device can perform cell reselection based on the priority of each network type, further improving the flexibility and applicability of cell reselection.

[0153] The embodiments of the present disclosure also provide a computer-readable storage medium, which stores a computer program that is executed by a processor to implement Figure 2 the methods provided in each step, and for details, reference may be made to the implementation manners provided in each of the above steps, which will not be elaborated here.

[0154] The above computer-readable storage medium may be an internal storage unit of the task processing device provided in any of the foregoing embodiments, such as the hard disk or memory of a terminal device or a network device. The computer-readable storage medium may also be an external storage device of the terminal device or the network device, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the terminal device or the network device. The above computer-readable storage medium may also include magnetic disks, optical discs, read-only memory (ROM), or random access memory (RAM), etc. Further, the computer-readable storage medium may include both the internal storage unit of the terminal device or the network device and the external storage device. The computer-readable storage medium is used to store the computer program and other programs and data required by the terminal device or the network device. The computer-readable storage medium may also be used to temporarily store the data that has been output or will be output.

[0155] Embodiments of the present disclosure provide a computer program product or a computer program. The computer program product or the computer program includes computer instructions, and the computer instructions are stored in a computer-readable storage medium. The processor of the terminal device or the network device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes Figure 2 the methods provided in each step in

[0156] The terms "first", "second", etc. in the claims, the description, and the drawings of the present disclosure are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or electronic device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products, or electronic devices. The mention of "embodiments" in this article means that specific features, structures, or characteristics described in connection with the embodiments may be included in at least one embodiment of the present disclosure. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments. The term "and / or" used in the description and claims of the present disclosure refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0157] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of the two. To clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described according to functions in the above description. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this disclosure.

[0158] The above-disclosed are only the preferred embodiments of this disclosure, and thus cannot be used to limit the scope of rights of this disclosure. Therefore, equivalent changes made according to the claims of this disclosure still fall within the scope covered by this disclosure.

Claims

1. A cell reselection method, characterized in that, Applied to a terminal device; the method includes: Receiving indication information, which is used to indicate the priorities of each network type and is sent through a system message or a Radio Resource Control (RRC) message; Determining the frequency priorities of the frequencies corresponding to each network type according to the frequency priorities indicated by the network device; When the frequency priorities of the frequencies corresponding to each network type are the same, determining the target cell for cell reselection as the cell with the highest priority of the network type among the cells that meet the S-criterion and have the highest R value of the R-criterion, or determining the target cell for cell reselection as the cell with the highest R value of the R-criterion among the cells that meet the S-criterion and have the highest priority of the network type; When the frequency priorities of the frequencies corresponding to each network type are different, determining the target cell for cell reselection based on the frequency priorities of the frequencies corresponding to each network type, the S-criterion, and the R-criterion.

2. The method according to claim 1, wherein The network type includes at least one of a geostationary orbit satellite network, a medium earth orbit satellite network, a low earth orbit satellite network, and a terrestrial network.

3. The method according to claim 1, wherein The priorities of each network type are determined by at least one of the following information: the reporting information of the terminal device; the capability information of the terminal device; the network configuration policy; wherein the reporting information indicates the network type that the terminal device expects to camp on, and the network configuration policy indicates at least one of the following information: the device types that can access each network type, the number of terminal devices accessing each network type.

4. A cell reselection method, characterized in that, Applied to a network device; the method includes: Sending indication information, wherein the indication information is used to indicate the priorities of each network type and is sent through a system message or an RRC message; the indication information is used for the terminal device to determine the frequency priorities of the frequencies corresponding to each network type according to the frequency priorities indicated by the network device, and when the frequency priorities of the frequencies corresponding to each network type are the same, determining the target cell for cell reselection as the cell with the highest priority of the network type among the cells that meet the S-criterion and have the highest R value of the R-criterion, or determining the target cell for cell reselection as the cell with the highest R value of the R-criterion among the cells that meet the S-criterion and have the highest priority of the network type; when the frequency priorities of the frequencies corresponding to each network type are different, determining the target cell for cell reselection based on the frequency priorities of the frequencies corresponding to each network type, the S-criterion, and the R-criterion.

5. The method according to claim 4, wherein The network type includes at least one of a geostationary orbit satellite network, a medium earth orbit satellite network, a low earth orbit satellite network, and a terrestrial network.

6. The method according to claim 4, characterized in that, The method further includes: Obtaining relevant information for determining the priorities of each network type; the relevant information includes at least one of the following: the reporting information of the terminal device; the capability information of the terminal device; the network configuration policy; wherein the reporting information indicates the network type that the terminal device expects to camp on; the network configuration policy indicates at least one of the following information: the device types that can access each network type, the number of terminal devices accessing each network type; Determine the priorities of the respective network types according to the relevant information.

7. A cell reselection device, characterized in that, The apparatus includes: a receiving unit, configured to receive indication information for indicating the priorities of the respective network types, where the indication information is sent through a system message or an RRC message; a selection unit, configured to determine the frequency priorities of the frequencies corresponding to the respective network types according to the frequency priorities indicated by the network device; when the frequency priorities of the frequencies corresponding to the respective network types are the same, determine the cell with the highest priority of the network type in the cell that satisfies the S criterion and has the highest R value of the R criterion as the target cell for cell reselection, or determine the cell with the highest R value of the R criterion in the cell that satisfies the S criterion and has the highest priority of the network type as the target cell for cell reselection; when the frequency priorities of the frequencies corresponding to the respective network types are different, determine the target cell for cell reselection based on the frequency priorities of the frequencies corresponding to the respective network types, the S criterion, and the R criterion.

8. A cell reselection device, characterized in that, The apparatus includes a sending unit: The sending unit is configured to send indication information, where the indication information is used to indicate the priorities of the respective network types, and the indication information is sent through a system message or an RRC message; the indication information is used for the terminal device to determine the frequency priorities of the frequencies corresponding to the respective network types according to the frequency priorities indicated by the network device, and when the frequency priorities of the frequencies corresponding to the respective network types are the same, determine the cell with the highest priority of the network type in the cell that satisfies the S criterion and has the highest R value of the R criterion as the target cell for cell reselection, or determine the cell with the highest R value of the R criterion in the cell that satisfies the S criterion and has the highest priority of the network type as the target cell for cell reselection; when the frequency priorities of the frequencies corresponding to the respective network types are different, determine the target cell for cell reselection based on the frequency priorities of the frequencies corresponding to the respective network types, the S criterion, and the R criterion.

9. A terminal device, characterized in that, including a processor and a memory, the processor and the memory are connected to each other; the memory is configured to store a computer program; the processor is configured to execute the method according to any one of claims 1 to 3 when calling the computer program.

10. A network device, characterized in that, including a processor and a memory, the processor and the memory are connected to each other; the memory is configured to store a computer program; the processor is configured to execute the method according to any one of claims 4 to 6 when calling the computer program.

11. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, and the computer program is executed by the processor to implement the method according to any one of claims 1 to 3 or to implement the method according to any one of claims 4 to 6.

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