Information transmission method, information transmission device, related equipment, and storage medium

Abstract

The information transmission method includes transmitting network slice-related information to a terminal by a network equipment, the network slice-related information including at least one of first information, second information, third information, and fourth information, the first information indicating a network slice supported by a first cell, the second information representing a correspondence relationship between the network slice and a frequency, the third information representing a correspondence relationship between the network slice and a cell, and the fourth information representing a correspondence relationship between the network slice and a cell access parameter, wherein, in the first information, the second information, the third information, and the fourth information, one of the following is performed for an identifier of the network slice: performing an encryption process on the identifier of the network slice using a key; truncating the identifier of the network slice; and performing mapping on the identifier of the network slice.

Description

[Technical field]

[0001] (CROSS-REFERENCE TO RELATED APPLICATIONS) This disclosure is filed based on and claims priority to a Chinese patent application having application number 202011581551.3 and filing date December 28, 2020, the entire contents of which are incorporated herein by reference.

[0002] The present disclosure relates to the field of wireless communication, and in particular to an information transmission method and device, related equipment, and storage medium. [Background technology]

[0003] A network slice (hereinafter referred to as slice) can provide differentiated services to different user groups. However, in the related art, slice information is transmitted from the core network to the terminal by dedicated signaling, and the terminal knows the slices supported in the registration area based on the slice information. In such a case, when switching, the terminal cannot select a frequency point or cell suitable for its slice based on the slice information. Summary of the Invention [Means for solving the problem]

[0004] To solve the related technical problems, the embodiments of the present disclosure provide an information transmission method and an information transmission device, related equipment, and a storage medium.

[0005] The technical solutions of the embodiments of the present disclosure are realized as follows.

[0006] An embodiment of the present disclosure provides an information transmission method applied to a network device, the information transmission method including: transmitting network slice-related information to a terminal, the network slice-related information including at least one of first information, second information, third information, and fourth information; The first information indicates a network slice supported by a first cell; and The second information represents a correspondence relationship between a network slice and a frequency, The third information represents a correspondence relationship between a network slice and a cell; The fourth information represents a correspondence relationship between a network slice and a cell access parameter, where: In the first information, the second information, the third information, and the fourth information, for an identifier of a network slice, performing an encryption process on an identifier of the network slice using a key; truncating an identifier of the network slice; and and performing a mapping to an identifier of the network slice.

[0007] In the above solution, relevant information about the network slice is transmitted to the terminal in a broadcast manner.

[0008] In the above solution, when a key is used to perform encryption processing on the identifier of the network slice, the information transmission method further includes: This includes transmitting the key to the terminal in a unicast manner.

[0009] In the above solution, the information transmission method further includes: encrypting fifth information using the key, the fifth information including dedicated information sent by a network side to the terminal; and and transmitting the encrypted fifth information to the terminal.

[0010] In the above solution, the key is valid within the current registration domain.

[0011] In the above solution, when the identifier of the network slice is truncated, the information transmission method further comprises: Sending sixth information to the terminal, the sixth information including indicating that a network slice identifier in the network slice related information has been truncated.

[0012] In the above solution, when mapping is performed on an identifier of the network slice, the information transmission method further comprises: Sending seventh information to the terminal, the seventh information including indicating that an identifier of the network slice in related information of the network slice is mapped.

[0013] In the above solution, the information transmission method further includes: Receiving eighth information reported by a terminal, the eighth information including indicating whether the terminal supports processing capability for related information of the network slice.

[0014] An embodiment of the present disclosure further provides an information transmission method applied to a terminal, the information transmission method including: receiving network slice-related information transmitted from a network side, the network slice-related information including at least one of first information, second information, third information, and fourth information; The first information indicates a network slice supported by a first cell; and The second information represents a correspondence relationship between a network slice and a frequency, The third information represents a correspondence relationship between a network slice and a cell; The fourth information represents a correspondence relationship between a network slice and a cell access parameter, where: In the first information, the second information, the third information, and the fourth information, for an identifier of a network slice, performing an encryption process on an identifier of the network slice using a key; truncating an identifier of the network slice; and and performing a mapping to an identifier of the network slice.

[0015] In the above solution, relevant information of the network slice is received in a broadcast manner.

[0016] In the above solution, the information transmission method further includes: With respect to the network slice related information, performing a decryption process on the encrypted network slice identifier using the key to obtain the network slice identifier; performing a truncation recovery process on the identifier of the truncated network slice to obtain an identifier of the network slice; and The method includes performing one of the following: performing a mapping to an identifier of the mapped network slice to obtain an identifier of the network slice.

[0017] In the above solution, when a decryption process is performed on the identifier of the network slice encrypted using a key, the information transmission method further includes: This includes receiving a key transmitted from the network side in a unicast manner.

[0018] In the above solution, the information transmission method further includes: receiving encrypted fifth information sent from a network side, the fifth information including dedicated information sent by the network side to the terminal; and decrypting the encrypted fifth information using the key to obtain the fifth information.

[0019] In the above solution, when a truncation recovery process is performed on the truncated network slice identifier to obtain the network slice identifier, the information transmission method further includes: Receiving sixth information transmitted from the network side, the sixth information including indicating that an identifier of a network slice in related information of the network slice has been truncated.

[0020] In the above solution, when performing mapping on the identifier of the mapped network slice to obtain the identifier of the network slice, the information transmission method further includes: Receiving seventh information transmitted from a network side, the seventh information including indicating that an identifier of the network slice in related information of the network slice is mapped.

[0021] In the above solution, when the related information of the network slice includes second information, the information transmission method further comprises: Using the second information to determine network slice information supported by adjacent frequencies.

[0022] In the above solution, when the related information of the network slice includes third information, the information transmission method further comprises: Using the third information, determining network slice information supported by the neighboring cell.

[0023] In the above solution, when the related information of the network slice includes fourth information, the information transmission method further comprises: Using the fourth information, determining cell access parameters of a network slice supported by the terminal.

[0024] In the above solution, the information transmission method further includes: Reporting eighth information to a network side, the eighth information including indicating whether the terminal supports processing capability for related information of the network slice.

[0025] An embodiment of the present disclosure further provides an information transmission device, the information transmission device comprising: A first sending unit configured to send network slice related information to a terminal, the network slice related information including at least one of first information, second information, third information, and fourth information; The first information indicates a network slice supported by a first cell; and The second information represents a correspondence relationship between a network slice and a frequency, The third information represents a correspondence relationship between a network slice and a cell; The fourth information represents a correspondence relationship between a network slice and a cell access parameter, where: In the first information, the second information, the third information, and the fourth information, for an identifier of a network slice, performing an encryption process on an identifier of the network slice using a key; truncating an identifier of the network slice; and and performing a mapping to an identifier of the network slice.

[0026] An embodiment of the present disclosure further provides an information transmission device, the information transmission device comprising: A first receiving unit configured to receive network slice related information transmitted from a network side, the network slice related information including at least one of first information, second information, third information, and fourth information; The first information indicates a network slice supported by a first cell; and The second information represents a correspondence relationship between a network slice and a frequency, The third information represents a correspondence relationship between a network slice and a cell; The fourth information represents a correspondence relationship between a network slice and a cell access parameter, where: In the first information, the second information, the third information, and the fourth information, for an identifier of a network slice, performing an encryption process on an identifier of the network slice using a key; truncating an identifier of the network slice; and and performing a mapping to an identifier of the network slice.

[0027] An embodiment of the present disclosure further provides a network device, the network device including a first processor and a first communication interface; The first communication interface is for transmitting network slice-related information to a terminal, and the network slice-related information includes at least one of first information, second information, third information, and fourth information; The first information indicates a network slice supported by a first cell; and The second information represents a correspondence relationship between a network slice and a frequency, The third information represents a correspondence relationship between a network slice and a cell; The fourth information represents a correspondence relationship between a network slice and a cell access parameter, where: In the first information, the second information, the third information, and the fourth information, for an identifier of a network slice, performing an encryption process on an identifier of the network slice using a key; truncating an identifier of the network slice; and and performing a mapping to an identifier of the network slice.

[0028] An embodiment of the present disclosure further provides a terminal, the terminal including a second communication interface and a second processor; The second communication interface is for receiving network slice related information transmitted from a network side, and the network slice related information includes at least one of first information, second information, third information, and fourth information; The first information indicates a network slice supported by a first cell; and The second information represents a correspondence relationship between a network slice and a frequency, The third information represents a correspondence relationship between a network slice and a cell; The fourth information represents a correspondence relationship between a network slice and a cell access parameter, where: In the first information, the second information, the third information, and the fourth information, for an identifier of a network slice, performing an encryption process on an identifier of the network slice using a key; truncating an identifier of the network slice; and and performing a mapping to an identifier of the network slice.

[0029] An embodiment of the present disclosure further provides a network device, the network device including a first processor and a first memory storing a computer program executable by the processor; When the computer program is executed, the first processor executes the steps of any of the above network device-side methods.

[0030] An embodiment of the present disclosure further provides a terminal, the terminal including a second processor and a second memory storing a computer program executable by the processor; The second processor, when the computer program is executed, performs the steps of any of the above terminal-side methods.

[0031] An embodiment of the present disclosure further provides a storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of any of the above-mentioned network device side methods or the steps of any of the above-mentioned terminal side methods.

[0032] In the information transmission method, information transmission device, related device, and storage medium provided in the embodiments of the present disclosure, a network device transmits network slice-related information to a terminal, and the network slice-related information includes at least one of first information, second information, third information, and fourth information, where the first information indicates a network slice supported by a first cell, the second information represents a correspondence relationship between the network slice and a frequency, the third information represents a correspondence relationship between the network slice and a cell, and the fourth information represents a correspondence relationship between the network slice and a cell access parameter, and in the first information, the second information, the third information, and the fourth information perform one of the following for an identifier of the network slice: performing encryption processing on the identifier of the network slice using a key, truncating the identifier of the network slice, and performing mapping on the identifier of the network slice. According to the technical solution provided in the embodiments of the present disclosure, the slice identifier is not directly transmitted, but related information from which the slice identifier can be obtained is transmitted, thereby avoiding security risks caused by directly transmitting the slice identifier. At the same time, by transmitting the above information, frequency priority or cell access parameters or cell reselection parameters, etc. for a specific slice can be set in the terminal, thereby realizing differentiated access to the slice and enabling the terminal to select a frequency point or cell suitable for its slice based on the slice information. The present invention provides, for example, the following: (Item 1) An information transmission method applied to a network device, comprising: transmitting network slice-related information to a terminal, the network slice-related information including at least one of first information, second information, third information, and fourth information; The first information indicates a network slice supported by a first cell; and The second information represents a correspondence relationship between a network slice and a frequency, The third information represents a correspondence relationship between a network slice and a cell; The fourth information represents a correspondence relationship between a network slice and a cell access parameter, where: In the first information, the second information, the third information, and the fourth information, for an identifier of a network slice, performing an encryption process on an identifier of the network slice using a key; truncating an identifier of the network slice; and and performing mapping to an identifier of the network slice. (Item 2) The network slice related information is transmitted to the terminal in a broadcast manner. Item 1. The information transmission method according to item 1. (Item 3) When the key is used to perform encryption processing on the identifier of the network slice, the information transmission method further includes: transmitting the key to the terminal in a unicast manner; Item 1. The information transmission method according to item 1. (Item 4) The information transmission method further comprises: encrypting fifth information using the key, the fifth information including dedicated information sent by a network side to the terminal; and and transmitting the encrypted fifth information to the terminal. Item 1. The information transmission method according to item 1. (Item 5) The key is valid within the current registration domain. Item 1. The information transmission method according to item 1. (Item 6) In the case of truncating the identifier of the network slice, the information transmission method further includes: Sending sixth information to the terminal, the sixth information including indicating that a network slice identifier in the network slice related information is truncated. Item 1. The information transmission method according to item 1. (Item 7) When mapping to an identifier of the network slice, the information transmission method further includes: Sending seventh information to the terminal, the seventh information including indicating that an identifier of the network slice in related information of the network slice is mapped. Item 1. The information transmission method according to item 1. (Item 8) The information transmission method further comprises: Receiving eighth information reported by a terminal, the eighth information including whether the terminal supports a processing capability for related information of the network slice. The information transmission method according to any one of items 1 to 7. (Item 9) An information transmission method applied to a terminal, comprising: receiving network slice-related information transmitted from a network side, the network slice-related information including at least one of first information, second information, third information, and fourth information; The first information indicates a network slice supported by a first cell; and The second information represents a correspondence relationship between a network slice and a frequency, The third information represents a correspondence relationship between a network slice and a cell; The fourth information represents a correspondence relationship between a network slice and a cell access parameter, where: In the first information, the second information, the third information, and the fourth information, for an identifier of a network slice, performing an encryption process on an identifier of the network slice using a key; truncating an identifier of the network slice; and and performing mapping to an identifier of the network slice. (Item 10) The network slice related information is received in a broadcast manner. Item 9. The information transmission method according to item 9. (Item 11) The information transmission method further comprises: With respect to the network slice related information, performing a decryption process on the encrypted network slice identifier using the key to obtain the network slice identifier; performing a truncation recovery process on the identifier of the truncated network slice to obtain an identifier of the network slice; and and performing one of the following: performing a mapping on the mapped network slice identifier to obtain a network slice identifier. Item 11. The information transmission method according to item 10. (Item 12) When performing a decryption process on the identifier of the network slice encrypted using the key, the information transmission method further includes: receiving a key transmitted from a network side in a unicast manner; Item 12. The information transmission method according to item 11. (Item 13) The information transmission method further comprises: receiving encrypted fifth information sent from a network side, the fifth information including dedicated information sent by the network side to the terminal; decrypting the encrypted fifth information using the key to obtain the fifth information. Item 12. The information transmission method according to item 11. (Item 14) When performing a truncation recovery process on the truncated network slice identifier to obtain a network slice identifier, the information transmission method further includes: receiving sixth information transmitted from a network side, the sixth information including indicating that an identifier of a network slice in related information of the network slice has been truncated; Item 12. The information transmission method according to item 11. (Item 15) When performing mapping on the identifier of the mapped network slice to obtain an identifier of the network slice, the information transmission method further includes: Receiving seventh information transmitted from a network side, the seventh information including indicating that an identifier of the network slice in related information of the network slice is mapped. Item 12. The information transmission method according to item 11. (Item 16) When the related information of the network slice includes second information, the information transmission method further includes: using the second information to determine network slice information supported by adjacent frequencies. Item 9. The information transmission method according to item 9. (Item 17) When the related information of the network slice includes third information, the information transmission method further includes: using the third information to determine network slice information supported by neighboring cells. Item 9. The information transmission method according to item 9. (Item 18) When the related information of the network slice includes fourth information, the information transmission method further includes: determining cell access parameters of a network slice supported by the terminal using the fourth information; Item 9. The information transmission method according to item 9. (Item 19) The information transmission method further comprises: Reporting eighth information to a network side, the eighth information including whether the terminal supports a processing capability for related information of the network slice; 19. The information transmission method according to any one of items 9 to 18. (Item 20) An information transmission device, A first sending unit configured to send network slice related information to a terminal, the network slice related information including at least one of first information, second information, third information, and fourth information; The first information indicates a network slice supported by a first cell; and The second information represents a correspondence relationship between a network slice and a frequency, The third information represents a correspondence relationship between a network slice and a cell; The fourth information represents a correspondence relationship between a network slice and a cell access parameter, where: In the first information, the second information, the third information, and the fourth information, for an identifier of a network slice, performing an encryption process on an identifier of the network slice using a key; truncating an identifier of the network slice; and An information transmitting device that performs one of the following: mapping to an identifier of the network slice. (Item 21) An information transmission device, A first receiving unit configured to receive network slice related information transmitted from a network side, the network slice related information including at least one of first information, second information, third information, and fourth information; The first information indicates a network slice supported by a first cell; and The second information represents a correspondence relationship between a network slice and a frequency, The third information represents a correspondence relationship between a network slice and a cell; The fourth information represents a correspondence relationship between a network slice and a cell access parameter, where: In the first information, the second information, the third information, and the fourth information, for an identifier of a network slice, performing an encryption process on an identifier of the network slice using a key; truncating an identifier of the network slice; and An information transmitting device that performs one of the following: mapping to an identifier of the network slice. (Item 22) A network device comprising: a first processor; and a first communication interface; The first communication interface is for transmitting network slice-related information to a terminal, and the network slice-related information includes at least one of first information, second information, third information, and fourth information; The first information indicates a network slice supported by a first cell; and The second information represents a correspondence relationship between a network slice and a frequency, The third information represents a correspondence relationship between a network slice and a cell; The fourth information represents a correspondence relationship between a network slice and a cell access parameter, where: In the first information, the second information, the third information, and the fourth information, for an identifier of a network slice, performing an encryption process on an identifier of the network slice using a key; truncating an identifier of the network slice; and A network device that performs one of the following: performing a mapping to an identifier of the network slice. (Item 23) a terminal including a second communication interface and a second processor; The second communication interface is for receiving network slice related information transmitted from a network side, and the network slice related information includes at least one of first information, second information, third information, and fourth information; The first information indicates a network slice supported by a first cell; and The second information represents a correspondence relationship between a network slice and a frequency, The third information represents a correspondence relationship between a network slice and a cell; The fourth information represents a correspondence relationship between a network slice and a cell access parameter, where: In the first information, the second information, the third information, and the fourth information, for an identifier of a network slice, performing an encryption process on an identifier of the network slice using a key; truncating an identifier of the network slice; and A terminal performing one of the following: performing mapping to an identifier of the network slice. (Item 24) A network device, a first processor and a first memory storing a computer program executable by the processor; A network device, wherein the first processor executes the steps of the information transmission method described in any one of items 1 to 8 when the computer program is executed. (Item 25) A terminal, a second processor and a second memory storing a computer program executable by the processor; A terminal, wherein the second processor executes the steps of the information transmission method described in any one of items 9 to 19 when the computer program is executed. (Item 26) A storage medium having stored thereon a computer program that, when executed by a processor, realizes the steps of the information transmission method described in any one of items 1 to 8, or realizes the steps of the information transmission method described in any one of items 9 to 19. [Brief description of the drawings]

[0033] [Figure 1] 1 is a schematic flowchart of an information transmission method according to an embodiment of the present disclosure. [Diagram 2] 4 is a schematic flowchart of another information transmission method according to an embodiment of the present disclosure. [Diagram 3] FIG. 2 is a structural schematic diagram of an information transmission device according to an embodiment of the present disclosure. [Figure 4] FIG. 2 is a structural schematic diagram of another information transmission device according to an embodiment of the present disclosure. [Diagram 5] FIG. 2 is a structural schematic diagram of a network device according to an embodiment of the present disclosure. [Figure 6] FIG. 2 is a structural schematic diagram of a terminal according to an embodiment of the present disclosure. [Figure 7] FIG. 1 is a structural schematic diagram of an information transmission system according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0034] The present disclosure will now be described in more detail with reference to the drawings and examples.

[0035] If the base station directly broadcasts slice information (e.g., slice ID, i.e., single network slice selection assistance information (S-NSSAI)), there may be a security risk. For example, an unregistered terminal or an unauthorized terminal can know what slices the cell supports by receiving system information, and if it recognizes that the slice of the cell is a security-sensitive slice (e.g., party, government, military slice), it will be destroyed. Therefore, in the related art, the broadcast of slice information is not supported, and all slice information is transmitted to the terminal via dedicated signaling transmitted from the core network. Based on this, the terminal knows the slices supported within the registration area, where the registration area includes several cells, i.e., knows the slice information of the granularity of the registration area.

[0036] However, since the slice information obtained by the terminal is of the granularity of the registration area, the terminal cannot know the slice information of adjacent frequency points or cells, i.e., cannot know the slice information with the granularity of a frequency point or cell, and therefore cannot select a frequency point or cell suitable for its own slice based on the slice information supported by adjacent frequencies or adjacent cells.

[0037] Based on this, various embodiments of the present disclosure provide a secure slice information transmission method, enabling terminals supporting different slices to know slice information with a frequency point or cell granularity, thereby selecting a frequency point or cell suitable for their own slice based on the slice information supported by adjacent frequencies or adjacent cells, and further realizing differentiated access using different network parameters.

[0038] An embodiment of the present disclosure provides an information transmission method applied to a network device (specifically, a base station), and as shown in FIG. 1, the information transmission method includes step 101.

[0039] In step 101, sending network slice related information to a terminal, the network slice related information including at least one of first information, second information, third information, and fourth information; The first information indicates a network slice supported by a first cell, and the first information is different from an identifier of the network slice supported by the first cell; The second information represents a correspondence relationship between a network slice and a frequency, The third information represents a correspondence relationship between a network slice and a cell; The fourth information represents a correspondence relationship between a network slice and a cell access parameter, where: In the first information, the second information, the third information, and the fourth information, for an identifier of a network slice, performing an encryption process on an identifier of the network slice using a key; truncating an identifier of the network slice; and performing a mapping to an identifier of the network slice.

[0040] Here, before performing step 101, the network equipment needs to determine relevant information of the network slice.

[0041] Based on this, in one embodiment, the method may further include step 100, as shown in FIG.

[0042] In step 100, relevant information of the network slice is determined, i.e., relevant information of the network slice is obtained.

[0043] Here, in practical application, it can be determined as needed, for example, it can be obtained from the core network, and the embodiment of the present disclosure is not limited thereto.

[0044] In the first information, the second information, the third information, and the fourth information, the network slice identifier is processed means that the network slice identifier included in these pieces of information is processed. Specifically, for the first information, the first information is actually information obtained after performing any of the above processes on the identifier of the network slice supported by the first cell. For the second information, the information includes information after performing any of the above processes on the identifier of each network slice and the corresponding frequency. For the third information, the information includes information after performing any of the above processes on the identifier of each network slice and the corresponding cell. For the fourth information, the information includes information after performing any of the above processes on the identifier of each network slice and the corresponding cell access parameters.

[0045] Since the related information of the network slice is not a slice identifier, i.e., S-NSSAI, but a certain process must be performed to obtain the slice identifier, the security of slice information transmission can be guaranteed.

[0046] Therefore, relevant information about the network slice may be transmitted to the terminal in a broadcast manner.

[0047] In practical application, any of the above processes may be performed on a slice identifier, i.e., a slice ID, for example, S-NSSAI.

[0048] Here, encryption refers to the network side setting an encryption key in the terminal, and the terminal uses the key to decrypt (also called decode) the slice-related information transmitted from the network side.

[0049] The truncation refers to constructing a part of the slice identifier as new slice information, that is, using a part of the slice ID to transmit over the air interface, thereby realizing secure transmission of slice information. Specifically, the S-NSSAI includes a slice / service type (SST) and a slice differentiator (SD), for example, the SST can be used instead of the S-NSSAI, thereby saving the resource overhead of the air interface and avoiding the risk of privacy and security exposure. Of course, other truncation methods may be adopted, for example, truncating some bits therein. The mapping refers to transmitting a mapping identifier corresponding to a slice identifier, rather than directly transmitting a slice identifier. For example, slice ID1 is mapped to mapping ID1 (e.g., category 1), slice ID2 is mapped to mapping ID2 (e.g., category 2), and the mapping relationship can be transmitted to the terminal by a dedicated message, and the dedicated message is transmitted to the terminal by a secure channel, for example, an encrypted link. The network side transmits a mapping ID, rather than a slice ID, by a broadcast message, and the terminal can know the corresponding slice ID by the mapping relationship.

[0050] Based on this, in one embodiment, the method comprises: performing an encryption process on an identifier of the network slice using a key; truncating an identifier of the network slice; and The method includes one of: mapping to an identifier of the network slice.

[0051] Specifically, for the first information, for an identifier of a network slice supported by the first cell, performing a cryptographic operation on an identifier of a network slice supported by the first cell using a key; truncating an identifier of a network slice supported by the first cell; and and performing a mapping to an identifier of a network slice supported by the first cell to obtain the first information.

[0052] Here, in practical application, when processing the identifier of the network slice, the network side needs to send the receiving configuration information of the slice information to the terminal. Specifically, when performing encryption processing on the identifier of the network slice using a key, the receiving configuration information includes an encryption key, that is, when performing encryption processing on the identifier of the network slice supported by the first cell using a key, the encrypted key needs to be notified to the terminal.

[0053] Based on this, in one embodiment, when performing an encryption process on the identifier of the network slice using a key, the method further comprises: This may include transmitting the key to the terminal in a unicast manner.

[0054] That is, a key for decoding the encrypted slice identifier in the broadcast message is transmitted to the terminal over a unicast encrypted link.

[0055] In practical application, when a terminal registers, the terminal receives registration area information sent from a network side to the terminal, the registration area includes several cells or several tracking areas, and at the same time, the terminal can also receive an encryption key sent from a network side, which is applied to the slice identifier of the registration area, and when the terminal is in the registration area, the terminal uses the key to decode the encrypted slice identifier.

[0056] Here, when the terminal moves and leaves the registration area, the terminal initiates a registration area update process to the network side, and the terminal receives new registration area information sent from the network side and an encryption key applied to the new slice identifier of the registration area, and can further receive an allowed slice list. When the terminal moves within the registration area, the terminal decodes the encrypted slice identifier in the broadcast message using the key applied to the registration area.

[0057] That is, the key changes with changes in the registration area of ​​the terminal, i.e., the key is valid within the current registration area.

[0058] Of course, for one registration area, the key can be changed, i.e., can be changed, and the network side can put the terminal into a connected state through a paging manner, and update the key currently applied in the registration area for the terminal. Correspondingly, the network side can also use a new key to encrypt the slice identifier broadcast on the air interface, thereby realizing regular or irregular change of the encryption key.

[0059] In practical application, the key can be used to encrypt the private information sent from the network side to the terminal, so that it can be sent by a broadcast message.

[0060] Based on this, in one embodiment, the method further comprises: encrypting fifth information using the key, the fifth information including dedicated information sent by a network side to the terminal; and transmitting the encrypted fifth information to the terminal.

[0061] Specifically, the encrypted fifth information may be transmitted to the terminal in a broadcast manner.

[0062] Here, in practical application, the network side needs to inform the terminal that the fifth information is encrypted. For example, assume that certain system information N is transmitted in an encrypted manner. The network side transmits a key configuration message for decoding the encrypted system information to the terminal, and the key configuration message includes: indicating that the system information N is encrypted system information; Setting area information, e.g., a registration area, in which the same key can be used to decode system information; and It may include at least one of the keys that are applied to the region.

[0063] When truncating the identifier of the network slice, i.e., when truncating the identifier of the network slice, it is also necessary for the network side to transmit reception configuration information of the slice information to the terminal. Specifically, when truncating the identifier of the network slice, the reception configuration information includes a truncation instruction to indicate that the slice information is to truncate the slice identifier.

[0064] Based on this, in one embodiment, when truncating the identifier of the network slice, the method further comprises: Sending sixth information to the terminal, the sixth information may include indicating that a network slice identifier in the network slice related information has been truncated.

[0065] Here, in practical application, the sixth information may be sent to the terminal through a system message or dedicated signaling.

[0066] When mapping is performed on the network slice identifier, i.e., when mapping is performed on the network slice identifier, it is also necessary for the network side to transmit reception configuration information of the slice information to the terminal. Specifically, when mapping is performed on the network slice identifier, the reception configuration information includes a mapping instruction for indicating that the slice information is to be mapped to the slice identifier.

[0067] Based on this, in one embodiment, when mapping to an identifier of the network slice, the method further comprises: Sending seventh information to the terminal, the seventh information may include indicating that an identifier of the network slice in related information of the network slice is mapped.

[0068] Here, in practical application, the sixth information may be sent to the terminal through a system message or dedicated signaling.

[0069] A mapping relationship for performing the mapping may be transmitted to the terminal through a dedicated message, so that the terminal can obtain a network slice identifier based on the mapping relationship.

[0070] The correspondence between the network slice and the frequency refers to identifying that a certain frequency supports a certain slice, or refers to a frequency priority corresponding to a certain slice, i.e., a network slice supported by one frequency (also referred to as configuring the network slice by one frequency), or a frequency priority corresponding to one slice (also referred to as a frequency priority used by one slice).

[0071] The correspondence between the network slices and the cells refers to a certain cell supporting a certain slice, i.e., a network slice supported by one cell.

[0072] The correspondence between the network slices and cell access parameters refers to the cell access parameters of a slice, and the cell access parameters may include cell selection parameters (e.g., a minimum residency threshold, etc.) or cell reselection parameters, etc., thereby realizing different access thresholds for different slices or different reselection conditions or parameters for different slices, and further realizing differentiated residency or reselection of slices.

[0073] The correspondence indicated by the second information, the third information, and the fourth information can be referred to as a correspondence between slices and network parameters.

[0074] In practical application, the terminal can report the terminal's capabilities, and the network device can send relevant information of the network slice matching the capabilities to the terminal based on the terminal's capabilities.

[0075] Based on this, in one embodiment, the method further comprises: Receiving eighth information reported by a terminal, the eighth information may include indicating whether the terminal supports processing capability (which may be abbreviated as capability) for related information of the network slice.

[0076] Here, the processing capacity is Whether the terminal supports encryption of slice identifiers; Whether the terminal supports truncation of slice identifiers; Whether the terminal supports mapping of slice identifiers; Whether the terminal supports the correspondence between slices and frequencies; Whether the terminal supports the correspondence between slices and cells; and whether the terminal supports the correspondence between slices and cell access parameters.

[0077] Here, if the terminal supports encryption, truncation or mapping of the slice identifier, the network side needs to set the reception configuration information of this area to the terminal by dedicated signaling as described above. Specifically, if the terminal supports encryption of the slice identifier, a key of this area needs to be set, the network side broadcasts the encrypted slice identifier in the system information, and the terminal uses the key to decode the encrypted system information and / or the encrypted slice identifier in the system information.

[0078] If the terminal does not support encryption, truncation or mapping of slice identifiers, it cannot receive slice information broadcast in the system information.

[0079] Correspondingly, an embodiment of the present disclosure further provides an information transmission method applied to a terminal, the information transmission method including: receiving network slice-related information transmitted from a network side, the network slice-related information including at least one of first information, second information, third information, and fourth information; The first information indicates a network slice supported by a first cell, and the first information is different from an identifier of the network slice supported by the first cell; The second information represents a correspondence relationship between a network slice and a frequency, The third information represents a correspondence relationship between a network slice and a cell; The fourth information represents a correspondence relationship between a network slice and a cell access parameter, where: In the first information, the second information, the third information, and the fourth information, for an identifier of a network slice, performing an encryption process on an identifier of the network slice using a key; truncating an identifier of the network slice; and and performing a mapping to an identifier of the network slice.

[0080] Here, in practical application, the terminal may be referred to as a user equipment (UE) or a user.

[0081] In one embodiment, the relevant information of the network slice may be received in a broadcast manner.

[0082] In one embodiment, the method further comprises: With respect to the network slice related information, performing a decryption process on the encrypted network slice identifier using the key to obtain the network slice identifier; performing a truncation recovery process on the identifier of the truncated network slice to obtain an identifier of the network slice; and The method may include performing one of the following: performing a mapping to a mapped network slice identifier to obtain a network slice identifier.

[0083] Here, when the network side performs encryption processing on the slice identifier, the terminal decrypts the encrypted slice identifier using a key, when the network side truncates the slice identifier, the terminal performs truncation recovery processing on the truncated slice identifier, and when the network side performs mapping on the slice identifier, the terminal performs mapping on the mapped slice identifier.

[0084] Here, in one embodiment, when performing a decryption process on the identifier of the network slice encrypted using the key to obtain the identifier of the network slice, the method further includes: This may include receiving a key transmitted from the network side in a unicast manner.

[0085] In one embodiment, the method further comprises: receiving encrypted fifth information sent from a network side, the fifth information including dedicated information sent by the network side to the terminal; and decrypting the encrypted fifth information using the key to obtain the fifth information.

[0086] In one embodiment, when performing a truncation recovery process on the truncated network slice identifier to obtain the network slice identifier, the method further includes: Receiving sixth information transmitted from the network side, the sixth information may include indicating that an identifier of the network slice in related information of the network slice has been truncated.

[0087] In one embodiment, when performing mapping on a mapped network slice identifier to obtain a network slice identifier, the method further includes: Receiving seventh information transmitted from a network side, the seventh information may include indicating that an identifier of the network slice in related information of the network slice is mapped.

[0088] In one embodiment, when the related information of the network slice includes second information, i.e., when the related information of the network slice includes second information, the method further comprises: This may include using the first information to determine network slice information (i.e., slice identifiers) supported by the neighboring cell.

[0089] In one embodiment, when the related information of the network slice includes second information, i.e., when the related information of the network slice includes second information, the method further comprises: This may include using the second information to determine network slice information supported by adjacent frequencies.

[0090] In one embodiment, when the related information of the network slice includes third information, i.e., when the related information of the network slice includes third information, the method further comprises: This may include using the third information to determine network slice information supported by neighboring cells.

[0091] In one embodiment, when the related information of the network slice includes fourth information, i.e., when the related information of the network slice includes fourth information, the method further includes: This may include using the fourth information to determine cell access parameters of a network slice supported by the terminal.

[0092] In one embodiment, the method further comprises: Reporting eighth information to a network side, the eighth information may include indicating whether the terminal supports processing capability for related information of the network slice.

[0093] An embodiment of the present disclosure provides an information transmission method, and as shown in FIG. 2, the method includes steps 201-202.

[0094] In step 201, the network device sends network slice related information to the terminal, and the network slice related information includes at least one of first information, second information, third information, and fourth information; The first information indicates a network slice supported by a first cell, and the first information is different from an identifier of the network slice supported by the first cell; The second information represents a correspondence relationship between a network slice and a frequency, The third information represents a correspondence relationship between a network slice and a cell; The fourth information represents a correspondence relationship between a network slice and a cell access parameter, where: In the first information, the second information, the third information, and the fourth information, for an identifier of a network slice, performing an encryption process on an identifier of the network slice using a key; truncating an identifier of the network slice; and performing a mapping to an identifier of the network slice.

[0095] In step 202, the terminal receives relevant information of the network slice.

[0096] It should be mentioned that the specific processing processes of the network equipment and the terminals have been described in detail above, and therefore will not be described in detail here.

[0097] In the information transmission method provided in the embodiment of the present disclosure, a network device transmits network slice-related information to a terminal, and the network slice-related information includes at least one of first information, second information, third information, and fourth information, where the first information indicates a network slice supported by a first cell, the second information represents a correspondence relationship between the network slice and a frequency, the third information represents a correspondence relationship between the network slice and a cell, and the fourth information represents a correspondence relationship between the network slice and a cell access parameter, and in the first information, the second information, the third information, and the fourth information, for a network slice identifier, one of the following is performed: performing encryption processing on the network slice identifier using a key, truncating the network slice identifier, and performing mapping on the network slice identifier. In the solution provided in the embodiment of the present disclosure, the slice identifier is not directly transmitted, but related information from which the slice identifier can be obtained is transmitted, thereby avoiding security risks caused by directly transmitting the slice identifier. At the same time, by transmitting the above information, frequency priority or cell access parameters or cell reselection parameters, etc. for a specific slice can be set in the terminal, thereby realizing differentiated access to the slice and enabling the terminal to select a frequency point or cell suitable for its slice based on the slice information.

[0098] In order to realize the method on the network device side of the embodiment of the present disclosure, the embodiment of the present disclosure further provides an information transmission device configured in the network device, and as shown in FIG. 3, the information transmission device includes: a first sending unit 301 configured to send network slice related information to a terminal, the network slice related information including at least one of first information, second information, third information, and fourth information; The first information indicates a network slice supported by a first cell; and The second information represents a correspondence relationship between a network slice and a frequency, The third information represents a correspondence relationship between a network slice and a cell; The fourth information represents a correspondence relationship between a network slice and a cell access parameter, where: In the first information, the second information, the third information, and the fourth information, for an identifier of a network slice, performing an encryption process on an identifier of the network slice using a key; truncating an identifier of the network slice; and and performing a mapping to an identifier of the network slice.

[0099] In one embodiment, as shown in FIG. 3, the apparatus further comprises: The network slice may include a first processing unit 302 configured to determine relevant information of the network slice.

[0100] In one embodiment, the first sending unit 301 is configured to send the network slice related information to the terminal in a broadcast manner.

[0101] In one embodiment, the first processing unit 302 is performing an encryption process on an identifier of the network slice using a key; truncating an identifier of the network slice; and and performing a mapping to an identifier of the network slice.

[0102] In one embodiment, when a key is used to perform encryption processing on the identifier of the network slice, the first sending unit 301 is further configured to send the key to the terminal in a unicast manner.

[0103] In one embodiment, the first processing unit 302 is further configured to encrypt fifth information using the key, the fifth information including dedicated information sent by a network side to the terminal; The first sending unit 301 is further configured to send the encrypted fifth information to the terminal.

[0104] In one embodiment, when the network slice identifier is truncated, the first transmitting unit 301 is further configured to transmit sixth information to the terminal, the sixth information indicating that the network slice identifier in the related information of the network slice has been truncated.

[0105] In one embodiment, when mapping to an identifier of the network slice, the first transmitting unit 301 is further configured to transmit seventh information to the terminal, the seventh information indicating that the identifier of the network slice in the related information of the network slice is mapped.

[0106] In one embodiment, the apparatus may further include a second receiving unit configured to receive eighth information reported by the terminal, the eighth information indicating whether the terminal supports processing capability for related information of the network slice.

[0107] In practical application, the first sending unit 301 and the second receiving unit can be realized by a communication interface in an information transmitting device, and the first processing unit 302 can be realized by a processor in the information transmitting device.

[0108] In order to realize the terminal-side method of the embodiment of the present disclosure, the embodiment of the present disclosure further provides an information transmission device configured in the terminal, as shown in FIG. 4, the information transmission device comprises: A first receiving unit 401 configured to receive network slice related information sent from a network side, the network slice related information including at least one of first information, second information, third information and fourth information; The first information indicates a network slice supported by a first cell, and the first information is different from an identifier of the network slice supported by the first cell; The second information represents a correspondence relationship between a network slice and a frequency, The third information represents a correspondence relationship between a network slice and a cell; The fourth information represents a correspondence relationship between a network slice and a cell access parameter, where: In the first information, the second information, the third information, and the fourth information, for an identifier of a network slice, performing an encryption process on an identifier of the network slice using a key; truncating an identifier of the network slice; and Perform one of the mappings to an identifier of the network slice.

[0109] In one embodiment, the first receiving unit 401 is configured to receive related information of the network slice in a broadcast manner.

[0110] In one embodiment, as shown in FIG. 4, the device further comprises, for the related information of the network slice: performing a decryption process on the encrypted network slice identifier using the key to obtain the network slice identifier; performing a truncation recovery process on the identifier of the truncated network slice to obtain an identifier of the network slice; and The network slice identifier may include a second processing unit 402 configured to perform one of the following: performing mapping on a mapped network slice identifier to obtain a network slice identifier.

[0111] In one embodiment, when performing a decryption process on the network slice identifier encrypted using the key to obtain the network slice identifier, the first receiving unit 401 is further configured to receive the key transmitted from the network side in a unicast manner.

[0112] In one embodiment, the first receiving unit 401 is further configured to receive encrypted fifth information sent from a network side, the fifth information including dedicated information sent by the network side to the terminal; The second processing unit 402 is further configured to decrypt the encrypted fifth information using the key to obtain the fifth information.

[0113] In one embodiment, when performing a truncation recovery process on the truncated network slice identifier to obtain a network slice identifier, the first receiving unit 401 is further configured to receive sixth information sent from the network side, where the sixth information indicates that the network slice identifier in the related information of the network slice has been truncated.

[0114] In one embodiment, when performing mapping to a mapped network slice identifier to obtain a network slice identifier, the first receiving unit 401 is further configured to receive seventh information sent from the network side, where the seventh information indicates that the network slice identifier in the related information of the network slice is mapped.

[0115] In one embodiment, when the network slice related information includes first information, the second processing unit 402 is further configured to use the first information to determine network slice information supported by an adjacent cell.

[0116] In one embodiment, if the network slice related information includes second information, the second processing unit 402 is further configured to use the second information to determine network slice information supported by adjacent frequencies.

[0117] In one embodiment, when the network slice related information includes third information, the second processing unit 402 is further configured to use the third information to determine network slice information supported by adjacent cells.

[0118] In one embodiment, if the related information of the network slice includes fourth information, the second processing unit 402 is further configured to use the fourth information to determine cell access parameters of the network slice supported by the terminal.

[0119] In one embodiment, the apparatus may further include a second transmitting unit configured to report eighth information to the network side, the eighth information indicating whether the terminal supports processing capability for related information of the network slice.

[0120] In practical application, the first receiving unit 401 and the second sending unit can be realized by a communication interface in an information transmitting device, and the second processing unit 402 can be realized by a processor in the information transmitting device.

[0121] It should be noted that, when the information transmission device provided in the above embodiment performs information transmission, only the above program module division is taken as an example, but in actual application, the above process can be completed by different program modules as needed, that is, the internal structure of the device is divided into different program modules to complete all or part of the above described process. In addition, the information transmission device and the information transmission method provided in the above embodiment belong to the same concept, and the specific implementation process thereof shall refer to the method embodiment in detail, and will not be described in detail here.

[0122] In order to realize the above-mentioned program module based on the hardware and to realize the method on the network device side of the embodiment of the present disclosure, the embodiment of the present disclosure further provides a network device, as shown in FIG. 5, the network device 500 includes: a first communication interface 501 capable of information interaction with a terminal; A first processor 502 is connected to the first communication interface 501, and executes the method provided by one or more technical solutions on the network device side when a computer program is executed, to realize information interaction with the terminal; a first memory 503, and the computer program is stored in the first memory 503.

[0123] Specifically, the first communication interface 501 transmits network slice related information to the terminal, and the network slice related information includes at least one of first information, second information, third information, and fourth information; The first information indicates a network slice supported by a first cell; and The second information represents a correspondence relationship between a network slice and a frequency, The third information represents a correspondence relationship between a network slice and a cell; The fourth information represents a correspondence relationship between a network slice and a cell access parameter, where: In the first information, the second information, the third information, and the fourth information, for an identifier of a network slice, performing an encryption process on an identifier of the network slice using a key; truncating an identifier of the network slice; and and performing a mapping to an identifier of the network slice.

[0124] In one embodiment, the first processor 502 determines relevant information for a network slice.

[0125] In one embodiment, the first communication interface 501 transmits network slice related information to the terminal in a broadcast manner.

[0126] In one embodiment, the first processor 502 is performing an encryption process on an identifier of the network slice using a key; truncating an identifier of the network slice; and and performing a mapping to an identifier of the network slice.

[0127] In one embodiment, when a key is used to perform encryption processing on the identifier of the network slice, the first communication interface 501 further transmits the key to the terminal in a unicast manner.

[0128] In one embodiment, the first processor 502 further encrypts fifth information using the key, the fifth information including dedicated information sent by a network side to the terminal; The first communication interface 501 further transmits the encrypted fifth information to the terminal.

[0129] In one embodiment, when the network slice identifier is truncated, the first communication interface 501 further transmits sixth information to the terminal, the sixth information indicating that the network slice identifier in the related information of the network slice has been truncated.

[0130] In one embodiment, when mapping is performed to an identifier of the network slice, the first communication interface 501 further transmits seventh information to the terminal, the seventh information indicating that the identifier of the network slice in the related information of the network slice is mapped.

[0131] In one embodiment, the first communication interface 501 further receives eighth information reported by a terminal, the eighth information indicating whether the terminal supports processing capability for related information of the network slice.

[0132] It should be explained that the specific processing processes of the first processor 502 and the first communication interface 501 can be understood with reference to the above methods.

[0133] Of course, in practical application, each component in the network device 500 is coupled via a bus system 504. It can be understood that the bus system 504 realizes the connection communication between these components. The bus system 504 includes a power bus, a control bus and a status signal bus in addition to a data bus. However, for clarity of explanation, the various buses are all illustrated as the bus system 504 in FIG. 5.

[0134] The first memory 503 in the embodiment of the present disclosure stores various types of data to support the operation of the network device 500. Examples of these data include any computer programs for operating on the network device 500.

[0135] The methods disclosed in the above embodiments of the present disclosure may be applied to or realized by the first processor 502. The first processor 502 may be an integrated circuit chip having signal processing capabilities. In the realization process, each step of the above-mentioned method may be completed by an integrated logic circuit of hardware in the first processor 502 or by an instruction in software form. The above-mentioned first processor 502 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc. The first processor 502 may realize or execute each method, step, and logic block diagram disclosed in the embodiments of the present disclosure. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of the present disclosure may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in a decoding processor. The software module may be located in a storage medium, which is located in the first memory 503, and the first processor 502 reads the information in the first memory 503 and combines with its hardware to complete the steps of the aforementioned method.

[0136] In an exemplary embodiment, network device 500 may be implemented with one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), Field-Programmable Gate Arrays (FPGAs), general-purpose processors, controllers, Micro Controller Units (MCUs), Microprocessors, or other electronic elements and configured to perform the methods described above.

[0137] In order to realize the above program module based on the hardware and realize the terminal-side method of the embodiment of the present disclosure, the embodiment of the present disclosure further provides a terminal, as shown in FIG. 6, the terminal 600 includes: a second communication interface 601 capable of information interaction with a network device; A second processor 602 is connected to the second communication interface 601, and executes the method provided by one or more technical solutions on the terminal side when a computer program is executed, to realize information interaction with a network device; a second memory 603, wherein the computer program is stored in the second memory 603.

[0138] Specifically, the second communication interface 601 receives network slice related information transmitted from a network side, and the network slice related information includes at least one of first information, second information, third information, and fourth information; The first information indicates a network slice supported by a first cell, and the first information is different from an identifier of the network slice supported by the first cell; The second information represents a correspondence relationship between a network slice and a frequency, The third information represents a correspondence relationship between a network slice and a cell; The fourth information represents a correspondence relationship between a network slice and a cell access parameter, where: In the first information, the second information, the third information, and the fourth information, for an identifier of a network slice, performing an encryption process on an identifier of the network slice using a key; truncating an identifier of the network slice; and Perform one of the mappings to an identifier of the network slice.

[0139] In one embodiment, the second communication interface 601 receives related information of the network slice in a broadcast manner.

[0140] In one embodiment, the second processor 602, for the network slice related information, performing a decryption process on the encrypted network slice identifier using the key to obtain the network slice identifier; performing a truncation recovery process on the identifier of the truncated network slice to obtain an identifier of the network slice; and and performing one of the following: performing a mapping against an identifier of the mapped network slice to obtain an identifier of the network slice.

[0141] In one embodiment, when performing a decryption process on a network slice identifier encrypted using a key to obtain the network slice identifier, the second communication interface 601 further receives a key transmitted from the network side in a unicast manner.

[0142] In one embodiment, the second communication interface 601 further receives encrypted fifth information sent from a network side, the fifth information including dedicated information sent by the network side to the terminal.

[0143] The second processor 602 further decrypts the encrypted fifth information using the key to obtain the fifth information.

[0144] In one embodiment, when a truncation recovery process is performed on the truncated network slice identifier to obtain the network slice identifier, the second communication interface 601 further receives sixth information sent from the network side, where the sixth information indicates that the network slice identifier in the related information of the network slice has been truncated.

[0145] In one embodiment, when mapping is performed on a mapped network slice identifier to obtain a network slice identifier, the second communication interface 601 further receives seventh information transmitted from the network side, and the seventh information indicates that the first information is a mapping of the network slice identifier in the related information of the network slice.

[0146] In one embodiment, if the network slice related information includes first information, the second processor 602 further uses the first information to determine network slice information supported by an adjacent cell.

[0147] In one embodiment, if the network slice related information includes second information, the second processor 602 further uses the second information to determine network slice information supported by adjacent frequencies.

[0148] In one embodiment, if the network slice related information includes third information, the second processor 602 further uses the third information to determine network slice information supported by adjacent cells.

[0149] In one embodiment, if the related information of the network slice includes fourth information, the second processor 602 further uses the fourth information to determine cell access parameters of the network slice supported by the terminal.

[0150] In one embodiment, the second communication interface 601 further reports eighth information to the network side, where the eighth information indicates whether the terminal supports processing capability for related information of the network slice.

[0151] It should be mentioned that the specific processing processes of the second processor 602 and the second communication interface 601 can be understood with reference to the above methods.

[0152] Of course, in a practical application, each component in the terminal 600 is coupled via a bus system 604. It can be understood that the bus system 604 realizes the connection communication between these components. The bus system 604 includes a power bus, a control bus and a status signal bus in addition to a data bus. However, for clarity of explanation, the various buses are all illustrated in FIG. 6 as the bus system 604. The second memory 603 in the embodiment of the present disclosure stores various types of data to support the operation of the terminal 600. Examples of these data include any computer programs for running on the terminal 600.

[0153] The methods disclosed in the above embodiments of the present disclosure may be applied to or realized by the second processor 602. The second processor 602 may be an integrated circuit chip having signal processing capabilities. In the realization process, each step of the above-mentioned method may be completed by an integrated logic circuit of hardware in the second processor 602 or by an instruction in software form. The above-mentioned second processor 602 may be a general-purpose processor, a DSP, or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc. The second processor 602 may realize or execute each method, step, and logic block diagram disclosed in the embodiments of the present disclosure. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of the present disclosure may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in a decoding processor. The software module may be located in a storage medium, which is located in the second memory 603, and the second processor 602 reads the information in the second memory 603 and combines with its hardware to complete the steps of the aforementioned method.

[0154] In an exemplary embodiment, terminal 600 may be implemented with one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general purpose processors, controllers, MCUs, Micropocessors, or other electronic devices to perform the methods described above.

[0155] It can be understood that the memory (first memory 503 and second memory 603) of the embodiment of the present disclosure can be volatile memory or non-volatile memory, and can also include both volatile and non-volatile memory. The non-volatile memory can be a read only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a ferromagnetic random access memory (FRAM), a flash memory, a magnetic surface memory, an optical disk, or a compact disc read-only memory (CD-ROM). The magnetic surface memory can be a magnetic disk memory or a tape memory. The volatile memory can be a random access memory (RAM) used as an external cache.By way of example and not limitation, many forms of RAM may be used, such as, for example, static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), SyncLink dynamic random access memory (SLDRAM), and direct memory bus random access memory (DRRAM). Memory as described in the embodiments of this disclosure is intended to include, without being limited to, these and any other suitable types of memory.

[0156] To realize the method of the embodiment of the present disclosure, the embodiment of the present disclosure further provides an information transmission system, which includes a network device 701 and a terminal 702, as shown in FIG.

[0157] It should be noted that the specific processing processes of the network device 701 and the terminal 702 have been described in detail above, and therefore will not be described in detail here.

[0158] In an exemplary embodiment, the embodiment of the present disclosure further provides a storage medium, i.e., a computer storage medium, specifically, a computer-readable storage medium, for example, including a first memory 503 storing a computer program, the computer program being executable by the first processor 502 of the network device 500 to complete the steps of the aforementioned network device-side method. For example, a second memory 603 storing a computer program, the computer program being executable by the second processor 602 of the terminal 600 to complete the steps of the aforementioned terminal-side method. The computer-readable storage medium may be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disk, or CD-ROM.

[0159] It should be clarified that "first", "second", etc. are used to distinguish between similar objects and not to describe a particular order or chronology.

[0160] In addition, the technical solutions described in the embodiments of the present disclosure can be arbitrarily combined unless they are contradictory.

[0161] The above descriptions are only preferred embodiments of the present disclosure, and are not intended to limit the protection scope of the present disclosure.

Claims

1. An information transmission method applied to a terminal, the information transmission method comprising: Receiving network slice related information transmitted from a network side, the network slice related information including second information, the second information representing a correspondence relationship between the network slice and a frequency, and the network slice related information being used to set a frequency priority for a specific slice in the terminal; determining network slice information supported by a first frequency using the second information; and Including, An information transmission method, comprising: in the second information, mapping an identifier of the network slice to an identifier of the network slice.

2. The network slice related information further includes at least one of first information, third information, and fourth information; The first information indicates a network slice supported by a first cell; and The third information represents a correspondence relationship between a network slice and a cell; The fourth information represents a correspondence relationship between a network slice and a cell access parameter, In the first information, the third information, and the fourth information, for an identifier of the network slice, performing an encryption process on an identifier of the network slice using a key; The identifier of the network slice is truncated; The identifier of the network slice is mapped.

2. The information transmission method according to claim 1, further comprising:

3. The network slice related information is received in a broadcast manner. Item 2. An information transmission method according to item 1.

4. The information transmission method includes: With respect to the network slice related information, performing a decryption process on the identifier of the network slice encrypted using the key to obtain the identifier of the network slice; performing a truncation recovery process on the truncated network slice identifier to obtain a network slice identifier; Obtaining an identifier of a network slice by performing mapping on the identifier of the mapped network slice 4. The method of claim 2, further comprising performing one of the following:

5. The information transmission method of claim 4, wherein when a decryption process is performed on a network slice identifier encrypted using the key, the information transmission method further includes receiving a key transmitted from the network side in a unicast manner.

6. The information transmission method includes: receiving encrypted fifth information sent from a network side, the fifth information including dedicated information sent by the network side to the terminal; obtaining fifth information by decrypting the fifth information encrypted using said key; The information transmission method of claim 4, further comprising:

7. When the identifier of the network slice is obtained by performing a truncation recovery process on the identifier of the truncated network slice, the information transmission method further includes receiving sixth information transmitted from a network side; The information transmission method according to claim 4 , wherein the sixth information indicates that a network slice identifier in network slice related information has been truncated.

8. When the identifier of the network slice is obtained by performing mapping on the identifier of the mapped network slice, the information transmission method further includes receiving seventh information transmitted from the network side; The information transmission method according to claim 4 , wherein the seventh information indicates that an identifier of the network slice in related information of the network slice is mapped.

9. 2. The information transmission method according to claim 1, wherein when the network slice related information includes third information, the information transmission method further includes: using the third information to determine network slice information supported by a first cell.

10. 2. The information transmission method according to claim 1, wherein, when the related information of the network slice includes fourth information, the information transmission method further includes: using the fourth information to determine cell access parameters of a network slice supported by the terminal.

11. The information transmission method further includes reporting eighth information to a network side; The information transmission method according to any one of claims 1 to 10, wherein the eighth information indicates whether the terminal supports processing capability for related information of the network slice.

12. An information transmission method applied to a network device, the information transmission method comprising: Sending network slice-related information to a terminal, The network slice-related information includes second information, the second information representing a correspondence relationship between a network slice and a frequency, and the network slice-related information is used to set a frequency priority for a specific slice in the terminal; and determining network slice information supported by a first frequency using the second information; and Including, An information transmission method, comprising: in the second information, mapping an identifier of the network slice to an identifier of the network slice.

13. A network device, the network device includes a first processor and a first memory that stores a computer program executable by the first processor; The network device, wherein the first processor performs the information transmission method according to claim 12 when the computer program is executed.

14. A terminal, the terminal includes a second processor and a second memory that stores a computer program executable by the second processor; The second processor performs the information transmission method according to any one of claims 1 to 11 when the computer program is executed.

15. A storage medium having stored thereon a computer program for causing a first processor to realize the information transmission method according to any one of claims 1 to 11, or for causing a second processor to realize the information transmission method according to claim 12.

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