Information processing method, terminal, communication system, and storage machine

Abstract

Embodiments of the present disclosure provide an information processing method, a terminal, a communication system, and a storage medium. The information processing method comprises: a network device sending first information, the first information being used by a terminal to determine a key. Thus, the first information can be sent to the terminal by means of the network, enabling the terminal to accurately determine the key.

Description

Information processing method, terminal, communication system, and storage medium TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and particularly relates to an information processing method, a terminal, a communication system, and a storage medium. BACKGROUND

[0002] Under dual connectivity, a user equipment (UE) can access two cells or two cell groups simultaneously. The two cell groups are a master cell group (MCG) and a secondary cell group (SCG). Under the MCG, there can be many cells (Cells), one of which is used to initiate initial access, and this cell is called a primary cell (PCell). As the name implies, the PCell is the most "primary" cell in the MCG. The PCell under the MCG and the secondary cell (SCell) under the MCG are jointly aggregated by carrier aggregation (CA). The primary cell in the MCG is the PCell, and the secondary cell is the SCell; the primary and secondary cells in the SCG are the PSCell and the SCell.

[0003] SUMMARY

[0004] Embodiments of the present disclosure need to solve the problem of determining a mobility operation key by a terminal.

[0005] Embodiments of the present disclosure provide an information processing method, a terminal, a communication system, and a storage medium.

[0006] According to a first aspect of embodiments of the present disclosure, an information processing method is provided, comprising: a network device sending first information, wherein the first information is used by a terminal to determine a key-related operation.

[0007] According to a second aspect of embodiments of the present disclosure, an information processing method is provided, comprising: a terminal receiving first information; and determining a key-related operation based on the first information.

[0008] According to a third aspect of embodiments of the present disclosure, an information processing method is provided, comprising: a network device sending first information to a terminal; and the terminal determining a key-related operation based on the first information.

[0009] According to a fourth aspect of embodiments of the present disclosure, a network device is provided, comprising: a first transceiver module configured to send first information, wherein the first information is used by a terminal to determine a key-related operation.

[0010] According to a fifth aspect of embodiments of the present disclosure, a terminal is provided, comprising:

[0011] The second transceiver module is configured to receive the first information.

[0012] The processing module is configured to determine the key-related operation based on the first information.

[0013] According to a sixth aspect of the embodiments of the present disclosure, a network device is provided, comprising: one or more processors; and wherein the network device is configured to perform the optional implementation of the first aspect.

[0014] According to a seventh aspect of the embodiments of the present disclosure, a terminal is provided, comprising: one or more processors; and wherein the terminal is configured to perform the optional implementation of the second aspect.

[0015] According to an eighth aspect of the embodiments of the present disclosure, a communication system is provided, comprising: a network device and a terminal; wherein the network device is configured to perform the method described in the optional implementation of the first aspect, and the terminal is configured to perform the method described in the optional implementation of the second aspect.

[0016] According to a ninth aspect of the embodiments of the present disclosure, a storage medium is provided, and the storage medium stores instructions, when the instructions run on a communication device, the communication device performs the method described in the first aspect, the second aspect, the third aspect, or the optional implementation of the first aspect, the second aspect and the third aspect.

[0017] The embodiments of the present disclosure can solve the determination of the key of the terminal in the execution of the mobility operation. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following describes the drawings required for the embodiments, and the following drawings are only some embodiments of the present disclosure, and do not specifically limit the protection scope of the present disclosure.

[0019] FIG. 1A is a structural schematic diagram of an information processing system according to an embodiment of the present disclosure.

[0020] FIG. 1B is an architecture diagram of E-UTRA-NR dual connectivity according to an embodiment of the present disclosure.

[0021] FIG. 1C is an architecture schematic diagram of NR-DC according to an embodiment of the present disclosure.

[0022] FIG. 1D is a schematic diagram of dual connectivity according to an embodiment of the present disclosure.

[0023] FIG. 1E is a schematic diagram of an information unit according to an embodiment of the present disclosure.

[0024] FIG. 1F is a schematic diagram of an information unit according to an embodiment of the present disclosure.

[0025] FIG. 1G is a schematic diagram of an information unit according to an embodiment of the present disclosure.

[0026] FIG. 1H is a schematic diagram of an information unit according to an embodiment of the present disclosure.

[0027] FIG. 2 is an interaction diagram of an information processing method according to an embodiment of the present disclosure.

[0028] FIG. 3A is a flow diagram of an information processing method according to an embodiment of the present disclosure.

[0029] FIG. 3B is a flow diagram of an information processing method according to an embodiment of the present disclosure.

[0030] FIG. 4A is a flow diagram of an information processing method according to an embodiment of the present disclosure.

[0031] FIG. 4B is a flow diagram of an information processing method according to an embodiment of the present disclosure.

[0032] FIG. 4C is a flow diagram of an information processing method according to an embodiment of the present disclosure.

[0033] FIG. 4D is a flow diagram of an information processing method according to an embodiment of the present disclosure.

[0034] FIG. 5 is a flow diagram of an information processing method according to an embodiment of the present disclosure.

[0035] FIG. 6 is a flow diagram of an information processing method according to an embodiment of the present disclosure.

[0036] FIG. 7A is a structural diagram of a first device according to an embodiment of the present disclosure.

[0037] FIG. 7B is a structural diagram of a second device according to an embodiment of the present disclosure.

[0038] FIG. 8A is a structural diagram of a communication device according to an embodiment of the present disclosure.

[0039] FIG. 8B is a structural diagram of a chip according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0040] Embodiments of the present disclosure provide an information processing method, a terminal, a communication system and a storage medium.

[0041] In a first aspect, embodiments of the present disclosure provide an information processing method, including: sending, by a network device, first information, wherein the first information is used for a terminal to determine a key-related operation.

[0042] In the above embodiment, the first information can be sent by the network device to the terminal, so that the terminal can accurately determine the key-related operation, thereby facilitating to improve the secure communication between the network device and the terminal.

[0043] In some embodiments of the first aspect, the key-related operation comprises at least one of:

[0044] whether to update the key;

[0045] generating the key.

[0046] In the above embodiment, the terminal can accurately determine whether to update the key or accurately generate the key according to the first information, thereby facilitating to improve the security between the network device and the terminal.

[0047] In some embodiments of the first aspect, the first information is used by the terminal to determine the key-related operation, which comprises at least one of:

[0048] the first information is used by the terminal to determine the key-related operation when performing the mobility operation;

[0049] the first information is used by the terminal to determine the key-related operation after performing the mobility operation.

[0050] In the above embodiment, the terminal can accurately determine whether to update the key or accurately generate the key when the mobility operation is performed and / or after the mobility operation, so that the terminal can generate the key in the mobility scenario without reusing the previous key, thereby improving the security between the network device and the terminal in the mobility scenario.

[0051] In some embodiments of the first aspect, the key is a key corresponding to a secondary node (SN).

[0052] In the above embodiment, the security key of the secondary node can be accurately determined.

[0053] In some embodiments of the first aspect, the mobility operation comprises at least one of:

[0054] conditional handover (CHO);

[0055] Conditional PSCell Addition or Change (CPAC), wherein the CPAC comprises Conditional PSCell Addition (CPA) and / or Conditional PSCell Change (CPC);

[0056] Subsequent CHO (Subsequent CHO);

[0057] Subsequent CPAC (Subsequent CPAC), wherein the Subsequent CPAC comprises Subsequent CPA and / or Subsequent CPC;

[0058] Layer 1 Layer 2-Triggered Mobility (L1 / L2-Triggered Mobility, LTM) for a primary cell (PCell) or a master cell group (MCG), wherein the LTM comprises initial LTM and / or subsequent LTM;

[0059] LTM for a PSCell or a SCG, wherein the LTM comprises initial LTM and / or subsequent LTM.

[0060] In the above embodiments, the key can be accurately determined when the terminal performs mobility operation of at least one of CHO, CPAC, Subsequent CHO, Subsequent CPAC, LTM for a primary cell or a primary cell group, and LTM for a primary secondary cell or a secondary cell group.

[0061] In combination with some embodiments of the first aspect, in some embodiments, the sending the first information comprises: sending Radio Resource Control (RRC) signaling, wherein the RRC signaling carries the first information.

[0062] In the above embodiments, the RRC signaling can be multiplexed to send the first information, thereby improving the utilization rate of the RRC signaling and saving signaling overhead.

[0063] In combination with some embodiments of the first aspect, in some embodiments, the first information comprises: configuration information, wherein the configuration information is used to configure a first identifier set; and the first identifier set is used to identify a set of count values, and the count value is a value of a counter; and the value of the counter is used to generate a key corresponding to the SN.

[0064] In the above embodiments, the first identifier set used for generating the key can be sent to the terminal to facilitate the terminal to determine whether the first identifier set of the SN to which the terminal needs to switch changes from the current first identifier set, so as to determine whether to update the key and / or accurately generate the key based on the first identifier set.

[0065] In some embodiments of the first aspect, in some embodiments, the configuration information comprises at least one of:

[0066] an index, and a first identifier set corresponding to the index;

[0067] an index, and an SN identifier and a first identifier set corresponding to the index; the SN identifier is used to identify a candidate SN;

[0068] an SN identifier, and a first identifier set corresponding to the SN identifier.

[0069] In the above embodiments, multiple ways are provided for the network device to configure the first identifier set for the terminal, which facilitates adaptation to more application scenarios. Furthermore, one first identifier set can correspond to one index, and one index can correspond to one candidate SN, so that at least one first identifier set of the candidate SN can be configured for the terminal; this facilitates the terminal to determine whether the first identifier set in the current SN changes or not.

[0070] In some embodiments of the first aspect, in some embodiments, the first information is sent by at least one of:

[0071] at least one conditional reconfiguration configuration is sent; each conditional reconfiguration configuration carries the first information, and the first information comprises a first identifier set corresponding to the conditional reconfiguration configuration; the conditional reconfiguration configuration is a configuration of a mobility operation;

[0072] a plurality of conditional reconfiguration configurations are sent, wherein a first conditional reconfiguration configuration in the plurality of conditional reconfiguration configurations carries the first information, and the first information comprises a first identifier set corresponding to the first conditional reconfiguration configuration; at least one second conditional reconfiguration configuration in the plurality of conditional reconfiguration configurations carries the first information, and the first information comprises an SN identifier, an index, and / or a first configuration identifier; the first configuration identifier is used to identify the first conditional reconfiguration configuration; the second conditional reconfiguration configuration is associated with the same candidate SN as the first conditional reconfiguration configuration.

[0073] In the above embodiments, the first information comprising the first identifier set and the like can be sent through the conditional reconfiguration configuration, and the conditional reconfiguration configuration can also be used for the configuration of the mobility operation, so that the conditional reconfiguration configuration has two functions of indicating the first identifier set and the configuration for the mobility operation, and the first identifier set does not need to be sent through additional signaling, thereby reducing signaling overhead.

[0074] And, if each conditional reconfiguration configuration carries the first information including the first identification set, the corresponding first identification set can be configured for each conditional reconfiguration configuration.

[0075] Alternatively, if the conditional reconfiguration configurations belong to the same candidate SN, the first identification set can be carried in only one of the conditional reconfiguration configurations, and the SN identification, index, and / or configuration identification of the conditional reconfiguration configuration indicating the candidate SN can be carried in the other conditional reconfiguration configurations, so that the conditional reconfiguration configurations belonging to the same candidate SN can be configured with the same first identification set, and the first identification set does not need to be configured in each conditional reconfiguration configuration, thereby saving configuration resources.

[0076] In some embodiments of the first aspect, the first information is transmitted, including:

[0077] The at least one conditional reconfiguration configuration is transmitted, wherein the conditional reconfiguration includes indication information; and the conditional reconfiguration configuration is a configuration of a mobility operation.

[0078] The indication information is used to indicate the SN identification corresponding to the conditional reconfiguration configuration and / or the first identification set; and the SN identification is used to identify a candidate SN, and the candidate SN includes at least one candidate primary secondary cell and / or a candidate secondary cell group.

[0079] In the above embodiments, the terminal can be informed of the candidate SN corresponding to the conditional reconfiguration configuration and / or the first identification set corresponding to the conditional reconfiguration configuration, thereby facilitating the terminal to accurately determine whether to update the key.

[0080] In some embodiments of the first aspect, the indication information further includes at least one of:

[0081] The first indication information is used to indicate the SN identification corresponding to the conditional reconfiguration configuration.

[0082] The second indication information is used to indicate the first identification set corresponding to the conditional reconfiguration configuration and / or the index corresponding to the first identification set.

[0083] The third indication information is used to indicate the second configuration identification; and the second configuration identification is used to indicate the conditional reconfiguration configuration belonging to the same candidate SN as the conditional reconfiguration configuration.

[0084] In the above embodiments, the terminal can be informed of the candidate SN corresponding to the conditional reconfiguration configuration and / or the first identification set corresponding to the conditional reconfiguration configuration in various ways, thereby being suitable for more application scenarios.

[0085] In some embodiments of the first aspect, the first information includes:

[0086] at least one second identifier set, wherein the second identifier set comprises one of:

[0087] an identifier of at least one candidate primary secondary cell;

[0088] an identifier of at least one secondary cell group;

[0089] at least one configuration identifier, wherein one configuration identifier is used to indicate one conditional reconfiguration configuration.

[0090] In the above embodiments, the network device can configure the second identifier set for the terminal, for example, configure the identifier of the primary secondary cell, the identifier of the secondary cell group, and / or the configuration identifier indicating the conditional reconfiguration configuration, so as to inform the terminal of the first identifier set corresponding to the same candidate SN and / or the conditional reconfiguration configuration.

[0091] In combination with some embodiments of the first aspect, in some embodiments, the indication information further comprises: fourth indication information, wherein the fourth indication information is used to indicate at least one second identifier set corresponding to at least one set number.

[0092] In the above embodiments, one unified set number can be configured for each second identifier set.

[0093] In combination with some embodiments of the first aspect, in some embodiments, the fourth indication information comprises: an index and a set number corresponding to the index.

[0094] In the above embodiments, since the set number corresponds to the index, and the index corresponds to the candidate SN, the set number can correspond to the candidate SN, so that the terminal can know the first identifier set corresponding to the candidate SN.

[0095] In combination with some embodiments of the first aspect, in some embodiments, the indication information further comprises: fifth indication information, wherein the fifth indication information is used to indicate the association between the second identifier set and the first identifier set.

[0096] In the above embodiments, the pre-configured first identifier set and the second identifier set can be associated, so as to facilitate the terminal to determine the first identifier set corresponding to the second identifier set.

[0097] In combination with some embodiments of the first aspect, in some embodiments, the fifth indication information comprises one of:

[0098] an index, and the first identifier set and the second identifier set corresponding to the index;

[0099] the first identifier set and the second identifier set.

[0100] In the above embodiments, the pre-configured first identifier set and the second identifier set can be associated in various ways, so that more application scenarios can be applied.

[0101] In some embodiments of the first aspect, in some embodiments, the network device configures the terminal with multiple conditional reconfiguration configurations, and the multiple conditional reconfiguration configurations correspond to multiple candidate SNs, and the configuration information is used to configure the first identifier set of the candidate SNs.

[0102] In some embodiments of the first aspect, in some embodiments, the network device configures the terminal with multiple conditional reconfiguration configurations, and the multiple conditional reconfiguration configurations correspond to multiple candidate SNs, and the indication information includes first indication information.

[0103] In some embodiments of the first aspect, in some embodiments, the network device configures the terminal with multiple conditional reconfiguration configurations, and the multiple conditional reconfiguration configurations correspond to multiple candidate SNs, and the indication information includes second indication information.

[0104] In the above embodiments, when the network device configures the terminal with multiple conditional reconfiguration configurations, and the multiple conditional reconfiguration configurations belong to the same candidate SN, the first identifier set can be configured for each candidate SN, so that the terminal knows the first identifier set corresponding to the candidate SN. And / or, the terminal can know the candidate SN and / or the first identifier set corresponding to each conditional reconfiguration configuration.

[0105] In some embodiments of the first aspect, in some embodiments, the method comprises: sending a configuration table, wherein the configuration table includes a first configuration table and / or a second configuration table:

[0106] The first configuration table is used to add at least one first identifier set, add at least one second identifier set, modify at least one first identifier set, and / or modify at least one second identifier set.

[0107] The second configuration table is used to delete at least one first identifier set and / or delete at least one second identifier set.

[0108] In the above embodiments, the network device can configure the terminal with the configuration table, so that the terminal updates the first identifier set and / or the second identifier set, for example, the first identifier set and / or the second identifier set can be added, modified and / or deleted.

[0109] In some embodiments of the first aspect, in some embodiments, the first configuration table includes an index and a first identifier set corresponding to the index; and / or the first configuration table includes an index and a second identifier set corresponding to the index; and / or the second configuration table includes an index.

[0110] In the above embodiments, the first identifier set and / or the second identifier set can be added and / or modified by the first configuration table; for example, when an index and the first identifier set corresponding to the index are included in the first configuration table, and the first identifier set corresponding to the index has been configured in the terminal, the first identifier set configured can be modified based on the first identifier set in the first configuration table; for another example, when an index and the first identifier set corresponding to the index are included in the first configuration table, and the first identifier set corresponding to the index has not been configured in the terminal, the first identifier set corresponding to the index in the first configuration table can be added; for another example, when an index and the second identifier set corresponding to the index are included in the first configuration table, and the second identifier set corresponding to the index has been configured in the terminal, the second identifier set configured can be modified based on the second identifier set in the first configuration table; for another example, when an index and the second identifier set corresponding to the index are included in the first configuration table, and the second identifier set corresponding to the index has not been configured in the terminal, the second identifier set corresponding to the index in the first configuration table can be added. And / or, the first identifier set and / or the second identifier set can be deleted by the second configuration table; for example, when an index is included in the second configuration table, the first identifier set and / or the second identifier set corresponding to the index configured in the terminal can be deleted.

[0111] In a second aspect, some embodiments of the present disclosure provide an information processing method, including: receiving, by a terminal, first information; determining, by the terminal, a key-related operation based on the first information.

[0112] In some embodiments of the second aspect, the key-related operation includes at least one of:

[0113] whether to update the key;

[0114] generating the key.

[0115] In some embodiments of the second aspect, determining the key-related operation based on the first information includes one of:

[0116] determining the key-related operation when performing a mobility operation based on the first information;

[0117] determining the key-related operation after performing the mobility operation based on the first information.

[0118] In some embodiments of the second aspect, the key is a key corresponding to an SN.

[0119] In some embodiments of the second aspect, the mobility operation includes one of:

[0120] CHO;

[0121] CPAC, wherein the CPAC includes CPA and / or CPC;

[0122] a subsequent CHO;

[0123] a subsequent CPAC, wherein the subsequent CPAC comprises a subsequent CPA and / or a subsequent CPC;

[0124] a mobility LTM for a primary cell or a primary cell group, wherein the LTM comprises an initial LTM and / or a subsequent LTM;

[0125] a LTM for a primary secondary cell or a secondary cell group, wherein the LTM comprises an initial LTM and / or a subsequent LTM.

[0126] In some embodiments, the receiving the first information comprises: receiving RRC signaling, wherein the RRC signaling carries the first information.

[0127] In some embodiments, the first information comprises configuration information, wherein the configuration information is used to configure the first identity set; and wherein the first identity set is used to identify a set of count values; and wherein a count value is a value of a counter used to generate a key corresponding to the SN.

[0128] In some embodiments, the configuration information comprises at least one of:

[0129] an index and a first identity set corresponding to the index;

[0130] an index, an SN identity and a first identity set corresponding to the index; and wherein the SN identity is used to identify a candidate SN;

[0131] an SN identity and a first identity set corresponding to the SN identity.

[0132] In some embodiments, the receiving the first information comprises one of:

[0133] receiving at least one conditional reconfiguration configuration; wherein each conditional reconfiguration configuration carries the first information, and wherein the first information comprises a first identity set corresponding to the conditional reconfiguration configuration; and wherein the conditional reconfiguration configuration is a configuration of a mobility operation;

[0134] receiving a plurality of conditional reconfiguration configurations; wherein a first conditional reconfiguration configuration of the plurality of conditional reconfiguration configurations carries the first information, and wherein the first information comprises a first identity set corresponding to the first conditional reconfiguration configuration; and wherein at least one second conditional reconfiguration configuration of the plurality of conditional reconfiguration configurations carries the first information, and wherein the first information comprises an SN identity, an index and / or a first configuration identity; and wherein the first configuration identity is used to indicate the first conditional reconfiguration configuration; and wherein the second conditional reconfiguration configuration is associated with a same candidate SN as the first conditional reconfiguration configuration.

[0135] In some embodiments of the second aspect, in some embodiments, the receiving the first information comprises: receiving at least one conditional reconfiguration configuration, wherein the conditional reconfiguration comprises the indication information; and the conditional reconfiguration configuration is a configuration of a mobility operation.

[0136] The indication information is used to indicate the SN identifier corresponding to the conditional reconfiguration configuration and / or the first identifier set; and the SN identifier is used to identify a candidate SN, and the candidate SN comprises at least one candidate primary secondary cell and / or a candidate secondary cell group.

[0137] In some embodiments of the second aspect, in some embodiments, the indication information further comprises at least one of:

[0138] First indication information, wherein the first indication information is used to indicate the SN identifier corresponding to the conditional reconfiguration configuration.

[0139] Second indication information, wherein the second indication information is used to indicate the first identifier set corresponding to the conditional reconfiguration configuration and / or an index corresponding to the first identifier set.

[0140] Third indication information, wherein the third indication information is used to indicate a second configuration identifier; and the second configuration identifier is used to indicate a conditional reconfiguration configuration belonging to a same candidate SN as the conditional reconfiguration configuration.

[0141] In some embodiments of the second aspect, in some embodiments, the first information comprises:

[0142] At least one second identifier set, wherein the second identifier set comprises one of:

[0143] An identifier of at least one candidate primary secondary cell;

[0144] An identifier of at least one secondary cell group;

[0145] At least one configuration identifier, wherein one configuration identifier is used to indicate one conditional reconfiguration configuration.

[0146] In some embodiments of the second aspect, in some embodiments, the indication information further comprises: fourth indication information, wherein the fourth indication information is used to indicate at least one second identifier set corresponding to at least one set number.

[0147] In some embodiments of the second aspect, in some embodiments, the fourth indication information comprises: an index corresponding to a set number.

[0148] In some embodiments of the second aspect, in some embodiments, the indication information further comprises: fifth indication information, wherein the fifth indication information is used to indicate an association between the second identifier set and the first identifier set.

[0149] In some embodiments of the second aspect, in some embodiments, the fifth indication information comprises one of:

[0150] the index, and the first identifier set and the second identifier set corresponding to the index;

[0151] the first identifier set and the second identifier set.

[0152] In some embodiments of the second aspect, in some embodiments, the network device configures a plurality of conditional reconfiguration configurations for the terminal, and the plurality of conditional reconfiguration configurations correspond to a plurality of candidate SNs, and the configuration information is used for configuring the first identifier set of the candidate SNs;

[0153] In some embodiments of the second aspect, in some embodiments, the network device configures a plurality of conditional reconfiguration configurations for the terminal, and the plurality of conditional reconfiguration configurations correspond to a plurality of candidate SNs, and the indication information comprises the first indication information;

[0154] In some embodiments of the second aspect, in some embodiments, the network device configures a plurality of conditional reconfiguration configurations for the terminal, and the plurality of conditional reconfiguration configurations correspond to a plurality of candidate SNs, and the indication information comprises the second indication information.

[0155] In some embodiments of the second aspect, in some embodiments, the method comprises: receiving a configuration table, wherein the configuration table comprises a first configuration table and / or a second configuration table:

[0156] The first configuration table is used for adding at least one first identifier set, adding at least one second identifier set, modifying at least one first identifier set, and / or modifying at least one second identifier set;

[0157] The second configuration table is used for deleting at least one first identifier set and / or deleting at least one second identifier set.

[0158] In some embodiments of the second aspect, in some embodiments, the first configuration table comprises an index and a first identifier set corresponding to the index; and / or, the first configuration table comprises an index and a second identifier set corresponding to the index; and / or, the second configuration table comprises an index.

[0159] In some embodiments of the second aspect, in some embodiments, based on the first information, determining the key-related operation comprises one of:

[0160] Based on the first identifier set corresponding to the currently serving master secondary cell being the same as the first identifier set corresponding to the target master secondary cell, it is determined that the key is not updated; wherein the target master secondary cell is one of the candidate master secondary cell or the secondary cell group.

[0161] Based on the index corresponding to the currently serving master secondary cell being the same as the index corresponding to the target master secondary cell, it is determined that the key is not updated.

[0162] determine to update the key based on the first identification set corresponding to the current serving primary secondary cell being different from the first identification set corresponding to the target primary secondary cell;

[0163] determine to update the key based on the index corresponding to the current serving primary secondary cell being different from the index corresponding to the target primary secondary cell;

[0164] determine to generate the key based on the first identification set corresponding to the current serving primary secondary cell being different from the first identification set corresponding to the target primary secondary cell;

[0165] determine to generate the key based on the index corresponding to the current serving primary secondary cell being different from the index corresponding to the target primary secondary cell.

[0166] In the above embodiments, whether the key needs to be updated and / or the key needs to be generated can be determined accurately based on whether the first identification set corresponding to the current serving primary secondary cell and / or the target primary secondary cell is consistent.

[0167] In some embodiments of the second aspect, determining the key-related operation based on the first information comprises one of the following:

[0168] determine not to update the key based on the SN identification corresponding to the current serving primary secondary cell being the same as the SN identification corresponding to the target primary secondary cell; wherein the target primary secondary cell is one of the candidate primary secondary cell or the secondary cell group;

[0169] determine to update the key based on the SN identification corresponding to the current serving primary secondary cell being different from the SN identification corresponding to the target primary secondary cell;

[0170] determine to generate the key based on the SN identification corresponding to the current serving primary secondary cell being different from the SN identification corresponding to the target primary secondary cell.

[0171] In the above embodiments, whether the key needs to be updated and / or the key needs to be generated can be determined accurately based on whether the candidate SN corresponding to the current serving primary secondary cell and / or the target primary secondary cell is consistent, i.e., based on whether the candidate SN is determined to have changed.

[0172] In some embodiments of the second aspect, determining the key based on the first information comprises one of the following:

[0173] determine not to update the key based on the set number corresponding to the current serving primary secondary cell being the same as the set number corresponding to the target primary secondary cell; wherein the target primary secondary cell is one of the candidate primary secondary cell or the secondary cell group;

[0174] determine to update the key based on the set number corresponding to the current serving primary secondary cell being different from the set number corresponding to the target primary secondary cell;

[0175] The current service primary secondary cell corresponding set number and target primary secondary cell corresponding set number are different, and it is determined to generate a key.

[0176] In the above embodiments, whether the current service primary secondary cell and / or the target primary secondary cell corresponding set number is consistent can be determined based on the set number corresponding to the index, and the index corresponds to the SN identifier of the candidate SN, that is, based on whether the candidate SN is changed, whether the key needs to be updated and / or the key is generated is accurately determined.

[0177] In a third aspect, the embodiments of the present disclosure provide an information processing method, including: a network device sending first information to a terminal; and the terminal determining a key-related operation based on the first information.

[0178] In a fourth aspect, the embodiments of the present disclosure provide a network device, including: a first transceiver module configured to send first information, wherein the first information is used by a terminal to determine a key-related operation.

[0179] In a fifth aspect, the embodiments of the present disclosure provide a terminal, including:

[0180] A second transceiver module configured to receive first information;

[0181] A processing module configured to determine a key-related operation based on the first information.

[0182] In a sixth aspect, the embodiments of the present disclosure provide a network device, including: one or more processors; wherein the network device is configured to perform the optional implementation of the first aspect.

[0183] In a seventh aspect, the embodiments of the present disclosure provide a terminal, including: one or more processors; wherein the terminal is configured to perform the optional implementation of the second aspect.

[0184] In an eighth aspect, the embodiments of the present disclosure provide a communication system, including: a network device and a terminal; wherein the network device is configured to perform the method described in the optional implementation of the first aspect, and the terminal is configured to perform the method described in the optional implementation of the second aspect.

[0185] In a ninth aspect, a storage medium is provided, and the storage medium stores instructions, when the instructions run on a communication device, the communication device performs the method described in the first aspect, the second aspect, the third aspect, or the optional implementation of the first aspect, the second aspect and the third aspect.

[0186] In a tenth aspect, the embodiments of the present disclosure provide a program product, which, when executed by a communication device, causes the communication device to perform the method described in the first aspect, the second aspect, the third aspect, or the optional implementation of the first aspect, the second aspect, and the third aspect.

[0187] In an eleventh aspect, the embodiments of the present disclosure provide a computer program, which, when running on a computer, causes the computer to perform the information processing method described in the first aspect, the second aspect, the third aspect, or the optional implementation of the first aspect, the second aspect, and the third aspect.

[0188] In a twelfth aspect, the embodiments of the present disclosure provide a chip or chip system, which includes processing circuitry configured to perform the method described in the first aspect, the second aspect, and the third aspect.

[0189] It can be understood that the network device, the terminal, the communication system, the storage medium, the program product, the computer program, and the chip or chip system are all used to perform the method provided by the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved are as described in the corresponding method, which will not be described here. It can be understood that the communication device includes the first device and / or the network device.

[0190] The embodiments of the present disclosure provide an information processing method, a first device, a network device, a communication system, and a storage medium. In some embodiments, the information processing method and the communication method can be replaced with each other, the information processing device and the communication device can be replaced with each other, and the information processing system and the communication system can be replaced with each other.

[0191] The embodiments of the present disclosure are not exhaustive, but only illustrate some embodiments, and are not specific limitations on the protection scope of the present disclosure. In the case of no contradiction, each step in an embodiment can be implemented as an independent embodiment, and the steps can be combined arbitrarily, for example, the scheme after removing some steps in an embodiment can also be implemented as an independent embodiment, and the order of the steps in an embodiment can be exchanged arbitrarily, in addition, the optional implementation in an embodiment can be combined arbitrarily; in addition, the embodiments can be combined arbitrarily, for example, the steps of different embodiments or the optional implementation of an embodiment can be combined arbitrarily.

[0192] In the embodiments of the present disclosure, the terms and / or descriptions of the embodiments are consistent and can be used with each other if there is no special description and no logical conflict, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0193] The terms used in the embodiments of the present disclosure are only for the purpose of describing the particular embodiments and are not intended to be limiting of the present disclosure.

[0194] In the embodiments of the present disclosure, unless otherwise specified, the elements represented by the singular form, such as "one", "an", "the", "above", "said", "preceding", "this", etc., can represent "one and only one", or can represent "one or more", "at least one", etc. For example, in the case of using articles such as "a", "an", "the" in English, the noun after the article can be understood as a singular expression, or can be understood as a plural expression.

[0195] In the embodiments of the present disclosure, "plurality" means two or more.

[0196] In some embodiments, the terms "at least one of", "one or more of", "a plurality of", "multiple", and the like can be replaced with each other.

[0197] In some embodiments, the description manner such as "at least one of A, B", "A and / or B", "A in one case, B in another case", "in response to a case A, in response to a case B", and the like can include the following technical solutions according to the case: A in some embodiments (A is executed regardless of B); B in some embodiments (B is executed regardless of A); A and B are selectively executed in some embodiments (A and B are selected from A and B); A and B are executed in some embodiments (A and B are executed). When there are more branches such as A, B, C, etc., it is similar to the above.

[0198] In some embodiments, the description manner such as "A or B" and the like can include the following technical solutions according to the case: A in some embodiments (A is executed regardless of B); B in some embodiments (B is executed regardless of A); A and B are selectively executed in some embodiments (A and B are selected from A and B). When there are more branches such as A, B, C, etc., it is similar to the above.

[0199] The prefix words of "first", "second" and the like in the embodiments of the present disclosure are merely used to distinguish different description objects, and do not constitute limitation on the position, order, priority, quantity or content of the description objects. The description objects are described in the claims or embodiments in the context of the description, and should not be construed as redundant limitation because of the use of the prefix words. For example, the ordinal words in front of the description objects "field" in "first field" and "second field" do not limit the position or order between the "fields", and "first" and "second" do not limit whether the "fields" modified thereby are in the same message or not, nor limit the order of "first field" and "second field". For another example, the ordinal words in front of the description objects "level" in "first level" and "second level" do not limit the priority between the "levels". For another example, the quantity of the description objects is not limited by the ordinal words, and can be one or more. For example, "first device", wherein the quantity of "device" can be one or more. In addition, the objects modified by different prefix words can be the same or different, for example, the description objects are "device", and "first device" and "second device" can be the same device or different devices, and the types thereof can be the same or different; for another example, the description objects are "information", and "first information" and "second information" can be the same information or different information, and the contents thereof can be the same or different.

[0200] In some embodiments, "including A", "containing A", "for indicating A", "carrying A" can be interpreted as directly carrying A, or indirectly indicating A.

[0201] In some embodiments, the terms of "in response to", "in response to determining", "in the case of", "when", "when", "if", and the like can be replaced with each other.

[0202] In some embodiments, the terms of "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not lower than", "above", and the like can be replaced with each other, and the terms of "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", "below", and the like can be replaced with each other.

[0203] In some embodiments, the apparatus and the like can be interpreted as physical or virtual, and the name thereof is not limited to the name recorded in the embodiments. The terms of "apparatus", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject" and the like can be replaced with each other.

[0204] In some embodiments, “network” can be interpreted as the devices (e.g., access network devices, core network devices, etc.) included in the network.

[0205] In some embodiments, the terms “access network device (AN device),” “radio access network device (RAN device),” “base station (BS),” “radio base station,” “fixed station,” “node,” “access point,” “transmission point (TP),” “reception point (RP),” “transmission / reception point (TRP),” “panel,” “antenna panel,” “antenna array,” “cell,” “macro cell,” “small cell,” “femto cell,” “pico cell,” “sector,” “cell group,” “carrier,” “component carrier,” “bandwidth part (BWP),” and the like can be replaced with each other.

[0206] In some embodiments, the terms "terminal," "terminal device," "user equipment (UE)," "user terminal," "mobile station (MS)," "mobile terminal (MT)," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," and so on can be replaced with each other.

[0207] In some embodiments, the access network device, the core network device, or the network device can be replaced with a terminal. For example, the embodiments of the present disclosure can also be applied to a structure in which communication between the access network device, the core network device, or the network device and the terminal is replaced with communication between a plurality of terminals (for example, also referred to as device-to-device (D2D), vehicle-to-everything (V2X), and so on). In this case, the terminal can also be configured to have all or part of the functions of the access network device. In addition, the language of "uplink," "downlink," and so on can also be replaced with language corresponding to the inter-terminal communication (for example, "side"). For example, the uplink channel, the downlink channel, and so on can be replaced with the side channel, and the uplink, the downlink, and so on can be replaced with the side link.

[0208] In some embodiments, the terminal can be replaced with the access network device, the core network device, or the network device. In this case, the access network device, the core network device, or the network device can also be configured to have all or part of the functions of the terminal.

[0209] In some embodiments, the data, information, etc. can be obtained in compliance with the laws and regulations of the country in which the location is situated.

[0210] In some embodiments, the data, information, etc. can be obtained after obtaining the consent of the user.

[0211] In addition, each element, each row, or each column in the table of the embodiments of the present disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0212] FIG. 1A is a structural schematic diagram of an information processing system 100 according to an embodiment of the present disclosure. As shown in FIG. 1A, the information processing system 100 can include a terminal 101 and a network device 102.

[0213] In some embodiments, the network device 102 can include at least one of an access network device and a core network device.

[0214] In some embodiments, the terminal 101 includes at least one of a mobile phone, a wearable device, an IOT device or terminal, a car with communication function, a smart car, a Pad, a computer with wireless transceiver function, a VR terminal device, an AR terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, a wireless terminal device in smart home, etc., but is not limited thereto.

[0215] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network, and the access network device can include at least one of an evolved NodeB (eNB) in a 5G communication system, a next generation eNB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, an access node in a wireless fidelity (WiFi) system, but is not limited thereto.

[0216] In some embodiments, the technical solutions of the present disclosure can be applied to an Open RAN architecture, at this time, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can become internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be realized through software or programs.

[0217] In some embodiments, the access network device can be composed of a central unit (CU) and a distributed unit (DU), wherein the CU can also be referred to as a control unit. The CU-DU structure can split the protocol layers of the access network device, and the functions of part of the protocol layers are controlled by the CU, and the functions of the remaining part or all of the protocol layers are distributed in the DU and controlled by the CU, but the present disclosure is not limited thereto.

[0218] In some embodiments, the core network device can be one device including the first network element, the second network element, and the like, or can be a plurality of devices or device groups including all or part of the first network element and the second network element. The network element can be virtual or physical. The core network includes at least one of an evolved packet core (EPC), a 5G core network (5GCN), and a next generation core (NGC), for example.

[0219] It can be understood that the information processing system described in the embodiments of the present disclosure is for more clearly illustrating the technical solutions of the embodiments of the present disclosure, and does not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. It can be known by those skilled in the art that, with the evolution of system architecture and the appearance of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.

[0220] The following embodiments of the present disclosure can be applied to the information processing system 100 shown in FIG. 1A or part of the subject, but are not limited thereto. The subjects shown in FIG. 1A are exemplary, and the information processing system can include all or part of the subjects in FIG. 1A, or other subjects other than those in FIG. 1A. The number and form of each subject is arbitrary, and the connection relationship between the subjects is exemplary. The subjects can be connected or not connected, and the connection can be in any manner, can be direct connection or indirect connection, and can be wired connection or wireless connection.

[0221] Embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (Bluetooth (registered trademark)), Public Land Mobile Network (PLMN) network, Device-to-Device (D2D) system, Machine to Machine (M2M) system, Internet of Things (IoT) system, Vehicle-to-Everything (V2X), system using other communication methods, next-generation system expanded based thereon, and the like. In addition, a plurality of systems can be combined (for example, combination of LTE or LTE-A and 5G, and the like).

[0222] In some embodiments, dual connectivity technology includes the following:

[0223] First, Multi-Radio Dual Connectivity (MR-DC).

[0224] MR-DC is a generalized Universal Mobile Telecommunication System (UMTS) Intra-E-UTRA Dual Connectivity. In which a UE can utilize radio resources provided by two different resource scheduling units, which are located on two different New Generation Radio Access Network (NG-RAN) nodes, connected by a non-ideal backhaul, one providing New Radio (NR) access and the other providing E-UTRA or NR access. The base station of the primary cell can be a Master Node (MN), and the base station of the secondary cell can be a Secondary Node (SN). The MN and the SN are connected by a network interface, wherein at least the MN is connected to a core network.

[0225] The second one is MR-DC based on Evolved Packet Core (EPC).

[0226] As shown in FIG. IB, it is a schematic diagram of an Evolved Universal Terrestrial Radio Access Network (E-UTRA-NR) Dual Connectivity (EN-DC) architecture. The E-UTRAN supports MR-DC through E-UTRA-NR DC (EN-DC), in which a UE is connected to a base station eNB acting as a Master Node (MN) and a base station en-gNB acting as a Secondary Node (SN). The base station eNB is connected to the core network EPC through an S1 interface and to the base station en-gNB through an X2 interface. The base station en-gNB can also be connected to the core network EPC through an S1-U interface and to other base stations en-gNBs through an X2-U interface. The core network device of the EPC can include a Mobility Management entity (MME) and / or a Service-Gateway (S-GW).

[0227] The third one is MR-DC based on 5th Generation Core (5GC).

[0228] The 5GC supports the following dual connectivity:

[0229] 1) Dual connectivity of E-UTRA-NR and NGEN-DC.

[0230] 5G radio access network (NG-RAN) supports NG-RAN E-UTRA-NR dual connectivity (NGEN-DC), in which a UE is connected to an ng-eNB as a master node (MN) and to one gNB as a secondary node (SN). The base station (ng-eNB) is connected to 5GC, and the base station (gNB) is connected to the base station ng-eNB over the Xn interface.

[0231] 2) NR-E-UTRA dual connectivity.

[0232] NG-RAN supports NR-E-UTRA dual connectivity (NE-DC), in which a UE is connected to a base station gNB as a master node MN and to a base station ng-eNB as a secondary node SN. The base station gNB is connected to 5GC, and the base station ng-eNB is connected to the base station gNB over the Xn interface.

[0233] 3) NR-NR dual connectivity.

[0234] As shown in FIG. 1C, an architecture diagram of NR-DC is shown. NG-RAN supports NR-NR dual connectivity (NR-DC), in which a UE is connected to one base station (gNB) as a master node MN and another base station gNB as a secondary node (SN). The master base station gNB is connected to 5GC over the NG interface, and the two base stations gNB are connected over the Xn interface, and the secondary base station gNB can also be connected to 5GC over the NG-U interface. In addition, NR-DC can also be used for a UE to access a single base station gNB, which simultaneously acts as a master node MN and a secondary node SN, while configuring a master cell group MCG and a secondary cell group SCG.

[0235] In some embodiments, as shown in FIG. 1D, under dual connectivity, a UE can access two cell groups, a master cell group (MCG) and a secondary cell group (SCG). Under the MCG, there can be many cells (Cell), one of which is used to initiate initial access, which is called a (PCell). As the name implies, the PCell is the most “primary” cell in the MCG. The PCell under the MCG and the SCell under the MCG are jointly configured through CA. The primary cell in the MCG is the PCell, and the secondary cell is the SCell; the primary and secondary cells in the SCG are the PSCell and the SCell. Because many signaling is only sent on the PCell and the PSCell, for the convenience of description, a concept of special primary cell (sPCell) is also defined in the protocol, and the PSCell is collectively referred to as sPCell.

[0236] The subsequent CHO / CPAC can be referred to as cell group (MCG / SCG) selective activation. Alternatively, the subsequent CPAC includes at least one of a subsequent CPC and a subsequent CPA.

[0237] In some embodiments, in conditional handover (CHO) and conditional PSCell change (CPC) / conditional PSCell addition (CPA), the CHO / CPC / CPA configured terminal has to release the CHO / CPC / CPA configuration upon completing random access to the target PCell / PSCell. Therefore, if the network does not reconfigure and reinitialize the CHO / CPC / CPA, the terminal has no chance to continue to perform CHO / CPC / CPA subsequently. This will increase the handover or SCG change latency and increase the signal overhead, especially in FR2 scenarios, in the case of frequent changes of CG.

[0238] Therefore, subsequent CHO / CPA is proposed. Subsequent CHO / CPA can also be referred to as cell / cell group selective activation. After triggering cell group or cell change or addition, the terminal does not delete the conditional reconfiguration configuration (CHO and / or CPAC configuration), and the original CHO / CPAC configuration can continue to be used for subsequent CHO / CPAC without RRC reconfiguration or reinitialization of the conditional reconfiguration configuration. Supporting subsequent CHO / CPAC can effectively reduce signaling overhead and reduce the interruption time of cell group change (or SPCell) change.

[0239] A subsequent CHO / CPAC configuration includes but is not limited to at least one of the following: configuration identifier, execution condition, configuration of corresponding candidate target cell (or cell group).

[0240] The network side can simultaneously configure multiple Subsequent CHO / CPAC configurations and reference configurations for the UE.

[0241] Optionally, the configuration identifier is an identifier (ID) indicating the related configuration.

[0242] Optionally, the execution condition is a condition that the UE needs to meet to trigger the mobility operation (trigger CHO, CPAC).

[0243] Optionally, the configuration of the corresponding candidate target cell (or cell group) is the candidate configuration corresponding to the target cell accessed by the UE when triggering the mobility operation, and this configuration can be represented by RRC Reconfiguration.

[0244] Reference configuration is a configuration corresponding to a candidate target configuration. The candidate target configuration is an incremental configuration of the reference configuration. Based on the candidate target configuration and the reference configuration, a complete configuration can be generated. This configuration can be represented by RRC Reconfiguration. When performing CHO / CPAC, the UE will apply the complete configuration. The reference configuration can be a specific configuration generated by the network or the current configuration of the UE. Only the configuration of the subsequent CHO / CPAC needs to configure the reference configuration.

[0245] In some embodiments, the configuration of CHO and CPAC does not contain the reference configuration, but only contains the configuration identifier, the execution condition, and the configuration of the corresponding candidate target cell (or cell group). The target cell accessed by the UE when triggering the mobility operation directly applies the configuration of the candidate target cell (or cell group).

[0246] In the subsequent CHO / CPAC, the network side can provide the UE with candidate configurations. These candidate configurations can be applied multiple times without re-providing the configuration. That is, in the subsequent CHO / CPAC, after applying a new cell group configuration to access a new cell, the UE will not delete the original configuration of the subsequent CHO / CPAC.

[0247] For example, for the handover CPAC, that is, the selective activation of the SCG, the subsequent CPAC can continue after the SCG and / or PSCell change or addition occurs without RRC reconfiguration.

[0248] In some embodiments, as shown in FIG. 1E, the RRCReconfiguration message is a command to modify the RRC connection. It can transmit information for measurement configuration, mobility control, radio resource configuration (including RBs, MAC master configuration, and physical channel configuration), and security configuration.

[0249] In some embodiments, the ConditionalReconfiguration is used for the configuration of the candidate target SpCell and / or the execution condition of at least one of the conditional handover, the conditional PSCell addition, or the conditional PSCell change.

[0250] Optionally, the ConditionalReconfiguration information element is used for adding, modifying, and publishing the configuration of the conditional reconfiguration.

[0251] Optionally, as shown in FIG. 1F, an implementation of the ConditionalReconfiguration information element is provided.

[0252] In some embodiments, the conditionally reset mobility configuration can include, but is not limited to, one or more of the following information:

[0253] A condReconfigToAddModList (condition reconfiguration to add or modify list) is used to add one or more condition reconfigurations and / or modify existing one or more condition reconfigurations.

[0254] A condReconfigToRemoveList (condition reconfiguration to remove list) is used to delete one or more condition reconfigurations.

[0255] Optionally, as shown in FIG. 1G, an implementation of a condition reconfig to add and / or modify information element (CondReconfigToAddModList information element) is provided. Optionally, this information element concerns a list of condition reconfigurations to be added or modified, for each entry, a condition reconfig ID and an associated condition execution condition or condition execution condition SCG (condExecutionCond / condExecutionCondSCG) and a condition reconfig.

[0256] In some embodiments, the IE SK-Counter is a counter for initial configuration of SN security for NR-DC and NE-DC, and updates S-K gNB or S-K eNB based on the current or newly derived base station root key (K gNB ) during RRC resume (RRC Resume) or RRC reconfiguration. Optionally, an implementation of the IE SK-Counter can be as shown in FIG. 1H.

[0257] In some embodiments, the SN Counter maintains can be at least one of the following:

[0258] The MN maintains a 16-bit counter, like the SN Counter, in its AS security context. The SN Counter is used when calculating K SN .

[0259] The MN keeps the value of the counter for the duration of the current 5G as the security context between the UE and the MN. The UE does not need to maintain the SN Counter after it has calculated K SN , as the MN provides the UE with the current SN Counter value (SN Counter value) when the UE needs to calculate a new K SN . The SN Counter is K SNFreshness of the new input. That is, the UE assumes that the MN provides a new SN counter each time and does not need to verify the freshness of the SN counter (Note: an attacker cannot modify the SN counter over the air and force the reuse of the same SN counter value. The reason is that the SN counter is transferred over the RRC connection between the MN and the UE, and this connection is integrity protected and protected against replay).

[0260] When a new AS root key K NG-RAN is established in the associated 5G AS security context, the MN shall set the SN counter to "0". After the first computed K SN , the MN sets the SN counter to "1", and for each additional computed K SN , the SN counter is monotonically increased. The value "0" of the SN counter is used to compute the first K SN .

[0261] If the MN decides to release a connection offloaded to an SN and later decides to resume offloading to the same SN, the value of the SN counter will remain increased, thus keeping the computed K SN new.

[0262] Before the SN counter wraps around, the MN shall refresh the 5G root key as the security context associated with the SN counter. The refresh of the root key can be done using an intra-cell handover. When the root key is refreshed, the SN counter is reset to "0".

[0263] In some embodiments, the derivation of the key can include at least one of the following:

[0264] The UE and the MN shall derive the security key KSNof the SN.

[0265] The SN is either an ng-eNB or a gNB, from which the SN RRC and UP keys are derived from KS N at the SN and the UE.

[0266] Once all SN RRC and UP keys have been derived from K SN , the SN and the UE can delete K SN .

[0267] In some embodiments, the derivation of the dual connectivity K SN may be as follows:

[0268] When the MN and the UE derive KSNduring dual connectivity, the following input string is used. The following input parameters shall be used:

[0269] FC = 0x79;

[0270] P0 = Value of SN Counter in non-negative integer form;

[0271] L0 = Length of the value of SN Counter (e.g. 0x00 0x02).

[0272] When MN is ng-eNB, the input key shall be KeNB, when MN is gNB, the input key shall be KgNB.

[0273] In some embodiments, security issues of subsequent CPAC:

[0274] In some embodiments, the security key of the SN is updated by the MN generating K SN over Xn-C to the SN. In order to generate K SN , the MN associates a counter called SK-Counter. K SN is generated from the security key of the MN and the SK-Counter. The value of the SK-Counter is sent by the MN to the terminal over RRC Rconfiguration. Optionally, the security of the SN depends only on the SK-Counter and the key of the MN.

[0275] For subsequent CPC, if the existing procedure is followed, the SK-Counter stored in the CPC configuration will continue to be used. Therefore, for multiple subsequent CPCs on the same candidate PSCell, if the same SK-Counter stored in the CPC configuration is used, the same security key will be generated. This will lead to security key reuse issues (i.e. using the same security key and Packet Data Convergence Protocol (PDCP) COUNT value to encrypt different data packets, which is not allowed).

[0276] Optionally, to address the above security issues, the security issues of the following scenarios are identified:

[0277] Q: RAN2 would like to know if SA3 considers the existing handling of SK-Counter / S-KgNB in the above scenarios as acceptable, i.e. using the same SK-counter / S-KgNB when connecting to SN#1 before and after connecting to SN#1.

[0278] A: No, this is not acceptable from a security point of view.

[0279] Q: If SA3 considers the existing handling of SK-Counter / S-KgNB in the above scenarios as not acceptable, RAN2 kindly requests SA3 to provide the requirements for a solution.

[0280] A: No, the same S-KgNB cannot be used. SA3 will specify an additional subclause for security for selective SCG activation.

[0281] Optionally, it is explicitly stated that the UE sends SN change, and the same SK-Counter / S-KgNB cannot be used before and after the SN change. A solution to solve the problem of security is also proposed, as follows is the detailed information of the solution from security trigger:

[0282] Step 1, for each SN, the MN provides the UE with multiple SN Counter values; the UE stores the CPC configuration together with the SN Counter values;

[0283] Step 2: the UE derives K gNB from the unused SN Counter value provided by the MN in advance. SN When SN switching is performed, the UE changes the value of the SN Counter.

[0284] In some embodiments, there are the following problems:

[0285] The UE avoids the reuse of SN keys according to the SN Counter pre-configured by the MN to generate a new K SN after the SN switching occurs. However, since the CPC configuration is configured for each candidate cell, the candidate SN information is not carried in the CPC configuration information, and the UE cannot know the candidate SN corresponding to each candidate PSCell / SCG, so the UE does not know whether the SN changes when performing Subsequent CPC.

[0286] Since the CPC and the subsequent CPC are triggered by the UE based on the pre-configuration of the network side, the network side cannot know when the UE will trigger the subsequent CPC, so it cannot directly instruct the UE whether to update K SN when the next CPC occurs.

[0287] Therefore, in view of the above problems, the embodiments of the present disclosure provide a method for indicating whether K SN needs to be updated when the subsequent CPC is performed. Through the pre-configured indication information of the network, the UE can determine whether the SN changes when performing the subsequent CPC, and if the SN changes, the UE will obtain the value of the new SK Counter and generate a new K SN based on the value of the SK Counter and KgNB. The network indication information is used to indicate the SN associated with each candidate cell / cell group configuration or the corresponding SN Counter value. The pre-indication information refers to the indication information configured by the UE in the CPAC preparation phase.

[0288] Optionally, the UE can be the terminal in the previous embodiments.

[0289] FIG. 2 is an interaction diagram of an information processing method according to an embodiment of the present disclosure. As shown in FIG. 2, the embodiment of the present disclosure relates to an information processing method for an information processing system 100, and the method comprises:

[0290] In step S2101, the network device sends first information to the terminal.

[0291] In some embodiments, the terminal receives the first information sent by the network device.

[0292] In some embodiments, the network device sends RRC signaling to the terminal, wherein the RRC signaling carries the first information.

[0293] In some embodiments, the terminal receives the RRC signaling sent by the network device, wherein the RRC signaling carries the first information.

[0294] Optionally, the RRC signaling can be any RRC signaling sent by the network device to the terminal; for example, the RRC signaling can be an RRC reconfiguration message.

[0295] Optionally, the first information can be carried by conditional reconfiguration (conditionalReconfiguration) configuration; for example, the first information can be sent in the IE ConditionalReconfiguration.

[0296] In some embodiments, the network device sends a MAC CE to the terminal; wherein the MAC CE carries the first information.

[0297] In some embodiments, the terminal receives the MAC CE sent by the network device; wherein the first information is carried in the MAC CE.

[0298] In some embodiments, the network device sends DCI to the terminal; wherein the DCI carries the first information.

[0299] In some embodiments, the terminal receives the DCI sent by the network device; wherein the DCI carries the first information.

[0300] In some embodiments, the network device sends a NAS message; wherein the NAS message carries the first information.

[0301] In some embodiments, the terminal receives a NAS message sent by the network device; wherein the NAS message carries the first information.

[0302] In some embodiments, the first information is used by the terminal to determine a key-related operation. Optionally, the key-related operation comprises whether to update a key, and / or to generate a key.

[0303] Optionally, the first information is used by the terminal to determine whether to update a key.

[0304] Optionally, the first information is used by the terminal to determine to generate a key.

[0305] In some embodiments, the first information is used by the terminal for a key-related operation when or after a mobility operation.

[0306] Optionally, the first information is used by the terminal to determine whether to update a key during the mobility operation.

[0307] Optionally, the first information is used by the terminal to determine whether to update a key before, during or after the mobility operation.

[0308] Optionally, the first information is used by the terminal to generate a key during the mobility operation.

[0309] Optionally, the first information is used by the terminal to generate a key before, during or after the mobility operation.

[0310] Optionally, the name of the key is not limited, which is, for example, a security key, security material, key information or password information, etc.

[0311] Optionally, the key can be a key corresponding to a secondary node (SN). For example, the key corresponding to the SN can be a secondary key (S-KeNB), a secondary key (S-KgNB), a secondary node key (KSN), etc.

[0312] Optionally, the key can be a key corresponding to a master node (MN). For example, the key corresponding to the MN can be a master key (KgNB), etc.

[0313] Optionally, the mobility operation comprises at least one of: CHO, CPAC, subsequent CHO, subsequent CPAC, Layer 1 Layer 2-Triggered Mobility (L1 / L2-Triggered Mobility, LTM) for a primary cell (PCell) or a master cell group (MCG), and LTM for a primary secondary cell (PSCell) or a secondary cell group (SCG). For example, the CPAC comprises CPA and / or CPC. For example, the subsequent CPAC comprises subsequent CPA and / or subsequent CPC. For example, the LTM for the primary cell or the master cell group comprises initial LTM and / or subsequent LTM. For example, the LTM for the primary secondary cell or the secondary cell group comprises initial LTM and / or subsequent LTM.

[0314] In some embodiments, the name of the first information is not limited, which is, for example, configuration information, and / or indication information, etc.

[0315] In some embodiments, the first information comprises configuration information.

[0316] Optionally, the configuration information is used for configuring the first identity set. For example, the configuration information is used for the network device to configure the first identity set for the terminal.

[0317] Optionally, the configuration information is used for configuring the first identity set of the at least one candidate SN.

[0318] Optionally, the name of the configuration information is not limited, which is, for example, a first parameter or a value of a counter, etc. As long as the first parameter or the value of the counter can be used to generate a key with one of a root key (such as KgNB), a long-term credential, a symmetric key, and a public / private key pair.

[0319] Optionally, the first identity set is used to identify a set of count values; the count value is a value of a counter. Optionally, the value of the counter or the count value is used to generate a key corresponding to the SN.

[0320] Optionally, the first identity set can comprise at least one count value.

[0321] Optionally, the count value can be any code. For example, the count value can be any integer from 0 to 65535, etc.

[0322] Optionally, the count value can be an SK Counter value or an SN Counter value, etc.

[0323] Optionally, the first identity set corresponds to an index.

[0324] Optionally, the configuration information can comprise: an index and a first identifier set corresponding to the index. For example, the implementation of the configuration information can be as shown in Table 1. For example, the index can be one or more. For example, the index is one-to-one corresponding to the first identifier set.

[0325] Table 1

[0326] Optionally, the configuration information can comprise: the index, and an SN identifier and a first identifier set corresponding to the index; the SN identifier is used to identify a candidate SN. For example, the implementation of the configuration information can be as shown in Table 2. For example, the index can be one or more. For example, the index is one-to-one corresponding to the first identifier set, and the index is one-to-one corresponding to the SN identifier.

[0327] Table 2

[0328] Optionally, the configuration information can comprise: an SN identifier and a first identifier set corresponding to the SN identifier; the SN identifier is used to identify a candidate SN. For example, the implementation of the configuration information can be as shown in Table 3. For example, the SN identifier can be one or more. For example, the SN identifier is one-to-one corresponding to the first identifier set.

[0329] Table 3

[0330] Optionally, each index (Index) corresponds to a candidate SN.

[0331] Optionally, the SN identifier can be any number or string, etc. For example, SN1, SN2 and SN3 are respectively identifiers of different candidate SNs.

[0332] In some embodiments, the first information is contained in a conditional reconfiguration configuration. The conditional reconfiguration configuration is a configuration of conditional reconfiguration, or the conditional reconfiguration configuration is a configuration of mobility operation. Optionally, the mobility operation can be any mobility operation in the previous embodiments.

[0333] In some embodiments, the network device sends at least one conditional reconfiguration configuration to the terminal, wherein the conditional reconfiguration configuration carries the first information. The at least one conditional reconfiguration configuration comprises one or more conditional reconfiguration configurations.

[0334] In some embodiments, the terminal receives at least one conditional reconfiguration configuration sent by the network device, wherein the conditional reconfiguration configuration carries the first information.

[0335] Optionally, the at least one conditional reconfiguration configuration can be carried in a message or signaling and sent.

[0336] Optionally, the at least one conditional reconfiguration configuration can be carried in different messages or signaling.

[0337] Optionally, the message or signaling can be at least one of the RRC signaling, DCI, MAC CE, and NAS message in the previous embodiments.

[0338] Optionally, each conditional reconfiguration configuration carries first information, and the first information includes a first identification set corresponding to the conditional reconfiguration configuration.

[0339] Optionally, one of the at least one conditional reconfiguration configuration carries a first identification set corresponding to the conditional reconfiguration configuration.

[0340] Optionally, one of the plurality of conditional reconfiguration configurations carries first information, and the first information includes first information of a first identification set corresponding to the first conditional reconfiguration configuration; at least one of the plurality of conditional reconfiguration configurations carries first information, and the first information includes an SN identification, an index, and / or a first configuration identification; the first configuration identification is used to identify the first conditional reconfiguration configuration; and the second conditional reconfiguration configuration is associated with the same candidate SN as the first conditional reconfiguration configuration.

[0341] Optionally, the first configuration identification can be an arbitrary encoded string, etc.

[0342] In some embodiments, the first information includes indication information.

[0343] Optionally, the network device sends at least one conditional reconfiguration configuration to the terminal, wherein the conditional reconfiguration configuration includes the indication information.

[0344] Optionally, the terminal receives at least one conditional reconfiguration configuration sent by the network device, wherein the conditional reconfiguration configuration includes the indication information.

[0345] Optionally, the network device sends RRC signaling, DCI, MAC CE, or NAS message to the terminal, wherein the RRC signaling, DCI, MAC CE, or NAS message can include the indication information.

[0346] In some embodiments, the indication information is used to indicate an SN identification corresponding to the conditional reconfiguration configuration and / or a first identification set. Optionally, the SN identification is used to identify a candidate SN. Optionally, the candidate SN includes at least one candidate primary secondary cell and / or a candidate secondary cell group. Optionally, the candidate SN includes at least one cell and / or a cell group. Optionally, the conditional reconfiguration configuration is a configuration for a mobility operation; the mobility operation can be the mobility operation in the previous embodiments.

[0347] Optionally, the SN identification can be a node identification of the candidate SN or a number or string of the candidate SN identification, etc.

[0348] In some embodiments, the name of the indication information is not limited, which is, for example, a second parameter, or associated information, etc.

[0349] Optionally, the indication information further comprises at least one of:

[0350] The first indication information, wherein the first indication information is used to indicate an SN identifier corresponding to the conditional reconfiguration configuration;

[0351] The second indication information, wherein the second indication information is used to indicate a first identifier set corresponding to the conditional reconfiguration configuration and / or an index corresponding to the first identifier set;

[0352] The third indication information, wherein the third indication information is used to indicate a second configuration identifier; the second configuration identifier is used to indicate a conditional reconfiguration configuration belonging to a same candidate SN as the conditional reconfiguration configuration.

[0353] Optionally, the first indication information, the second indication information and the third indication information can each be one or more bits.

[0354] In some embodiments, the indication information is used to configure a second identifier set. Optionally, the second identifier set is used to indicate a second identifier set corresponding to a same candidate SN.

[0355] In some embodiments, the first information comprises at least one second identifier set.

[0356] Optionally, the second identifier set comprises one of: an identifier of at least one candidate primary secondary cell; an identifier of at least one secondary cell group; and at least one configuration identifier. Optionally, one configuration identifier is used to indicate one conditional reconfiguration configuration.

[0357] Optionally, the second identifier set can be any number or string, etc.

[0358] Optionally, the indication information can comprise fourth indication information, wherein the fourth indication information is used to indicate at least one second identifier set corresponding to at least one set number.

[0359] Optionally, the fourth indication information comprises an index corresponding to a set number. The index is one-to-one corresponding to the set number.

[0360] Optionally, the fourth indication information is one or more bits.

[0361] Optionally, the set number can be any number or string.

[0362] Exemplarily, the implementation manner of the fourth indication information can be shown in Table 4. Exemplarily, the set number is one-to-one corresponding to the second identifier set.

[0363] Table 4

[0364] For example, the cell identity can be an identity of a candidate primary secondary cell.

[0365] For example, the cell group identity can be an identity of a candidate secondary node.

[0366] For example, the configuration identity can be an identity of a configuration.

[0367] For example, the set number is one-to-one corresponding to a group of cell identities.

[0368] For example, the set number is one-to-one corresponding to a group of cell group identities.

[0369] For example, the set number is one-to-one corresponding to a group of configuration identities.

[0370] In some embodiments, the indication information is used to associate the second identity set with the first identity set.

[0371] Optionally, the indication information can include fifth indication information, wherein the fifth indication information is used to indicate the association of the second identity set with the first identity set.

[0372] Optionally, the fifth indication information can be one or more bits.

[0373] Optionally, the name of the fifth indication information is not limited, which is, for example, association information, etc.

[0374] Optionally, the fifth indication information can include an index, and the first identity set and the second identity set corresponding to the index. For example, the implementation of the fifth indication information can be shown in Table 5 as follows. For example, the index is one-to-one corresponding to the first identity set, and the index is one-to-one corresponding to the second identity set.

[0375] Table 5

[0376] Optionally, the fifth indication information can include the first identity set and the second identity set. For example, the implementation of the fifth indication information can be shown in Table 6 as follows.

[0377] Table 6

[0378] It can be understood that each element in the above Tables 1 to 6 exists independently, and the elements are exemplarily listed in the same table, but it does not mean that all elements in the table must exist at the same time according to the table. The value of each element is independent of the value of any other element in Tables 1 to 6. Therefore, those skilled in the art can understand that the value of each element of Tables 1 to 6 is an independent embodiment.

[0379] In some embodiments, the configuration information and the indication information in the preceding embodiments can be sent separately, or the configuration information and the indication information in the preceding embodiments can be sent together.

[0380] In some embodiments, the network device can send the configuration information first and then send the indication information in the preceding embodiments.

[0381] In some embodiments, the network device configures multiple conditional reconfiguration configurations for the terminal, and the multiple conditional reconfiguration configurations correspond to multiple candidate SNs, and the configuration information is used to configure a first identifier set of the candidate SNs.

[0382] In some embodiments, the network device configures multiple conditional reconfiguration configurations for the terminal, and the multiple conditional reconfiguration configurations correspond to multiple candidate SNs, and the indication information includes first indication information and / or second indication information.

[0383] In some embodiments, the first information includes a configuration table, or the configuration information includes a configuration table.

[0384] In some embodiments, the terminal receives the configuration table sent by the network device.

[0385] In some embodiments, the network device sends RRC signaling to the terminal, wherein the RRC signaling carries the configuration table.

[0386] In some embodiments, the terminal receives the RRC signaling sent by the network device, wherein the RRC signaling carries the configuration table.

[0387] Optionally, the RRC signaling can be any RRC signaling sent by the network device to the terminal; for example, the RRC signaling can be an RRC reconfiguration message.

[0388] Optionally, the configuration table can be sent by conditional reconfiguration (conditionalReconfiguration) configuration, for example, the configuration table can be contained in the IE ConditionalReconfiguration and sent.

[0389] In some embodiments, the network device sends a MAC CE to the terminal; wherein the MAC CE carries the configuration table.

[0390] In some embodiments, the terminal receives a MAC CE sent by the network device; wherein the MAC CE carries the configuration table.

[0391] In some embodiments, the network device sends a DCI to the terminal; wherein the DCI carries the configuration table.

[0392] In some embodiments, the terminal receives a DCI sent by the network device; wherein the DCI carries the configuration table.

[0393] In some embodiments, the network device sends a NAS message to the terminal; wherein the NAS message carries the configuration table.

[0394] In some embodiments, the terminal receives a NAS message sent by the network device; wherein the NAS message carries the configuration table.

[0395] In some embodiments, the name of the configuration table is not limited, for example, it can be configuration information, or a configuration set, etc.

[0396] Optionally, the configuration table includes a first configuration table and / or a second configuration table.

[0397] Optionally, the network device sends a conditional reconfiguration configuration to the terminal, wherein the conditional reconfiguration configuration includes the first configuration table and / or the second configuration table.

[0398] Optionally, the terminal receives a conditional reconfiguration configuration sent by the network device, wherein the conditional reconfiguration configuration includes the first configuration table and / or the second configuration table.

[0399] Optionally, the name of the first configuration table is not limited, for example, it is addition or increase information, or modification information, etc.

[0400] Optionally, the first configuration table is used for one of the following: adding at least one first identification set, adding at least one second identification set, modifying at least one first identification set, and modifying at least one second identification set.

[0401] Optionally, the first configuration table includes at least one of the following: an index and a first identification set corresponding to the index, and an index and a second identification set corresponding to the index.

[0402] Optionally, the name of the second configuration table is not limited, for example, it is deletion information, etc.

[0403] Optionally, the second configuration table is used for deleting at least one first identification set and / or deleting at least one second identification set.

[0404] Optionally, the second configuration table includes an index.

[0405] In some embodiments, the configuration table can be sent independently of the first information. For example, the network device sends the first information and the configuration table in different messages or signaling.

[0406] At step S2102, the terminal performs the first operation.

[0407] In some embodiments, the terminal performs the first operation based on the first information and the configuration table.

[0408] Optionally, the first operation comprises at least one of: adding the first set of identities configured in the first information, modifying the first set of identities configured in the first information, deleting the first set of identities configured in the first information, adding the second set of identities configured in the first information, modifying the second set of identities configured in the first information, and deleting the second set of identities configured in the first information.

[0409] In some embodiments, the terminal performs at least one of: adding the first set of identities and / or the second set of identities corresponding to the index based on the first configuration table; and modifying the first set of identities and / or the second set of identities corresponding to the index based on the first configuration table.

[0410] In some embodiments, the terminal performs at least one of: deleting the first set of identities and / or the second set of identities corresponding to the index based on the second configuration table.

[0411] At step S2103, the terminal determines the key-related operation.

[0412] Optionally, the terminal determines whether to update the key.

[0413] Optionally, the terminal generates the key.

[0414] Optionally, the terminal determines whether to update the key during the execution of the mobility operation.

[0415] Optionally, the terminal determines whether to update the key before or during or after the execution of the mobility operation.

[0416] Optionally, the terminal generates the key during the execution of the mobility operation.

[0417] Optionally, the terminal generates the key before or during or after the execution of the mobility operation.

[0418] Optionally, the terminal determines the key-related operation based on the first information.

[0419] In some embodiments, the terminal determines not to update the key based on the first set of identities corresponding to the current serving primary secondary cell being the same as the first set of identities corresponding to the target primary secondary cell; wherein the target primary secondary cell is one of the candidate primary secondary cell or the secondary cell group.

[0420] In some embodiments, the terminal determines not to update the key based on that the index corresponding to the currently serving primary secondary cell is same as the index corresponding to the target primary secondary cell.

[0421] In some embodiments, the terminal determines to update the key based on that the first set of identities corresponding to the currently serving primary secondary cell is different from the first set of identities corresponding to the target primary secondary cell.

[0422] In some embodiments, the terminal determines to update the key based on that the index corresponding to the currently serving primary secondary cell is different from the index corresponding to the target primary secondary cell.

[0423] In some embodiments, the terminal determines to generate the key based on that the first set of identities corresponding to the currently serving primary secondary cell is different from the first set of identities corresponding to the target primary secondary cell.

[0424] In some embodiments, the terminal determines to generate the key based on that the index corresponding to the currently serving primary secondary cell is different from the index corresponding to the target primary secondary cell.

[0425] Optionally, the determining not to update the key comprises determining not to update the key when or after the mobility operation is performed.

[0426] Optionally, the determining to update the key comprises determining to update the key when or after the mobility operation is performed.

[0427] Optionally, the determining to generate the key comprises determining to generate the key when or after the mobility operation is performed.

[0428] In some embodiments, the SN identity corresponding to the currently serving primary secondary cell is same as the SN identity corresponding to the target primary secondary cell, and it is determined not to update the key; wherein the target primary secondary cell is one of the candidate primary secondary cell or the secondary cell group.

[0429] In some embodiments, the SN identity corresponding to the currently serving primary secondary cell is different from the SN identity corresponding to the target primary secondary cell, and it is determined to update the key; wherein the target primary secondary cell is one of the candidate primary secondary cell or the secondary cell group.

[0430] In some embodiments, the SN identity corresponding to the currently serving primary secondary cell is different from the SN identity corresponding to the target primary secondary cell, and it is determined to generate the key; wherein the target primary secondary cell is one of the candidate primary secondary cell or the secondary cell group.

[0431] Optionally, the SN identity corresponding to the target primary secondary cell can be the identity of the secondary node corresponding to the target primary secondary cell.

[0432] In some embodiments, the set number corresponding to the currently serving primary secondary cell is same as the set number corresponding to the target primary secondary cell, and it is determined not to update the key; wherein the target primary secondary cell is one of the candidate primary secondary cell or the secondary cell group.

[0433] In some embodiments, the set number corresponding to the current serving primary secondary cell is different from the set number corresponding to the target primary secondary cell, and it is determined to update the key; wherein the target primary secondary cell is one of the candidate primary secondary cell or the secondary cell group.

[0434] In some embodiments, the set number corresponding to the current serving primary secondary cell is different from the set number corresponding to the target primary secondary cell, and it is determined to generate the key; wherein the target primary secondary cell is one of the candidate primary secondary cell or the secondary cell group.

[0435] In some embodiments, the name of the information is not limited to the name described in the embodiments, and the terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", "chip", and the like can be replaced with each other.

[0436] In some embodiments, "acquire", "obtain", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be replaced with each other, which can be interpreted as receiving from other subjects, acquiring from protocols, obtaining from higher layers, processing to obtain, autonomously implementing, and the like.

[0437] In some embodiments, the terms such as "send", "transmit", "report", "issue", "transmit", "bidirectional transmission", "send and / or receive" can be replaced with each other.

[0438] In some embodiments, the terms such as "certain", "preset", "pre-set", "set", "indicated", "one", "arbitrary", "first" can be replaced with each other, and "certain A", "preset A", "pre-set A", "set A", "indicated A", "one A", "arbitrary A", "first A" can be interpreted as A specified in advance in a protocol or the like, or can be interpreted as A obtained by setting, configuring, or indicating, or can be interpreted as certain A, one A, arbitrary A, or first A, but is not limited thereto.

[0439] In some embodiments, the determining or judging can be performed by a value represented by 1 bit (0 or 1), a true or false value (Boolean value) represented by true or false, or a comparison of numerical values (for example, a comparison with a predetermined value), but is not limited thereto.

[0440] The information processing method related to the embodiments of the present disclosure can include at least one of steps S2101 to S2103. For example, step S2101 can be implemented as an independent embodiment; step S2102 can be implemented as an independent embodiment; step S2103 can be implemented as an independent embodiment; a combination of step S2101 and step S2103 can be implemented as an independent embodiment; a combination of step S2102 and step S2103 can be implemented as an independent embodiment; a combination of step S2101 and step S2103 can be implemented as an independent embodiment; or a combination of steps S2101 to S2103 can be implemented as an independent embodiment.

[0441] In some embodiments, the order of steps S2102 and S2103 can be exchanged or they can be performed simultaneously.

[0442] In some embodiments, steps S2102 and S2103 can be optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0443] In some embodiments, steps S2101 and S2102 can be optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0444] In some embodiments, steps S2101 and S2103 can be optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0445] FIG. 3A is a flow diagram illustrating an information processing method according to an embodiment of the present disclosure. As shown in FIG. 3A, the embodiments of the present disclosure relate to an information processing method performed by a network device, and the above method comprises:

[0446] Step S3101: transmitting first information.

[0447] The optional implementation of step S3101 can refer to the optional implementation of step S2101 of FIG. 2 and other related parts in the embodiments related to FIG. 2, which will not be described here.

[0448] In some embodiments, the network device transmits the first information to the terminal, but is not limited thereto, and can transmit the first information to other subjects.

[0449] Optionally, the first information comprises at least one of configuration information, indication information, and a configuration table.

[0450] Optionally, the first information comprises at least one of configuration information and indication information; the configuration information can comprise a configuration table.

[0451] The information processing method related to the embodiments of the present disclosure can comprise at least one of step S3101 to step S3102. For example, step S3101 can be implemented as an independent embodiment; step S3102 can be implemented as an independent embodiment; the combination of step S3101 and step S3102 can be implemented as an independent embodiment.

[0452] In some embodiments, step S3101 can be optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0453] In some embodiments, step S3102 can be optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0454] FIG. 3B is a flow diagram illustrating an information processing method according to an embodiment of the present disclosure. As shown in FIG. 3B, the embodiments of the present disclosure relate to an information processing method, which is performed by a network device, and the above method comprises:

[0455] Step S3201: transmitting first information.

[0456] The optional implementation of step S3201 can refer to the optional implementation of step S2101 in FIG. 2, or the optional implementation of step S3101 in FIG. 3A, and other associated parts in the embodiments related to FIG. 2 and FIG. 3A, which will not be described here.

[0457] Optionally, the first information is used by the terminal to determine a key-related operation.

[0458] In some embodiments, the key-related operation comprises whether to update a key and / or generate a key.

[0459] In some embodiments, the first information is used by the terminal to determine a key-related operation, which comprises at least one of the following:

[0460] The first information is used by the terminal to determine a key-related operation when performing a mobility operation;

[0461] The first information is used by the terminal to determine a key-related operation after performing a mobility operation;

[0462] The first information is used by the terminal to determine a key-related operation when performing a mobility operation;

[0463] The first information is used by the terminal to determine a key-related operation after performing the mobility operation.

[0464] In some embodiments, the key is a key corresponding to a secondary node (SN).

[0465] In some embodiments, the mobility operation comprises at least one of:

[0466] CHO;

[0467] CPAC, wherein the CPAC comprises a CPA and / or a CPC;

[0468] Subsequent CHO (Subsequent CHO);

[0469] Subsequent CPAC (Subsequent CPAC), wherein the Subsequent CPAC comprises a Subsequent CPA (Subsequent CPA) and / or a Subsequent CPC (Subsequent CPC);

[0470] LTM for a primary cell (PCell) or a master cell group (MCG), wherein the LTM comprises an initial LTM and / or a subsequent LTM;

[0471] LTM for a primary secondary cell (PSCell) or a secondary cell group (SCG), wherein the LTM comprises an initial LTM and / or a subsequent LTM.

[0472] In some embodiments, the sending the first information comprises: sending RRC signaling, wherein the RRC signaling carries the first information.

[0473] In some embodiments, the first information comprises: configuration information, wherein the configuration information is used to configure a first identity set; wherein the first identity set is used to identify a set of count values, the count values being values of a counter; the values of the counter are used to generate the key corresponding to the SN.

[0474] In some embodiments, the configuration information comprises at least one of:

[0475] an index and a first identity set corresponding to the index;

[0476] an index, an SN identity corresponding to the index, and a first identity set; the SN identity is used to identify a candidate SN;

[0477] an SN identity and a first identity set corresponding to the SN identity.

[0478] In some embodiments, the sending the first information comprises one of:

[0479] sending at least one conditional reconfiguration configuration; wherein each conditional reconfiguration configuration carries first information, the first information comprising a first identification set corresponding to the conditional reconfiguration configuration; wherein the conditional reconfiguration configuration is a configuration for mobility operation;

[0480] sending a plurality of conditional reconfiguration configurations; wherein a first conditional reconfiguration configuration in the plurality of conditional reconfiguration configurations carries first information, the first information comprising a first identification set corresponding to the first conditional reconfiguration configuration; at least one second conditional reconfiguration configuration in the plurality of conditional reconfiguration configurations carries first information, the first information comprising a SN identification, an index and / or a first configuration identification; the first configuration identification is used to identify the first conditional reconfiguration configuration; the second conditional reconfiguration configuration is associated with the first conditional reconfiguration configuration in a same candidate SN.

[0481] In some embodiments, the sending of the first information comprises: sending at least one conditional reconfiguration configuration, wherein the conditional reconfiguration comprises indication information; the conditional reconfiguration configuration is a configuration for mobility operation;

[0482] wherein the indication information is used to indicate a SN identification corresponding to the conditional reconfiguration configuration and / or a first identification set; the SN identification is used to identify a candidate SN, the candidate SN comprising at least one candidate primary secondary cell and / or a candidate secondary cell group.

[0483] In some embodiments, the indication information further comprises at least one of:

[0484] first indication information, wherein the first indication information is used to indicate a SN identification corresponding to the conditional reconfiguration configuration;

[0485] second indication information, wherein the second indication information is used to indicate a first identification set corresponding to the conditional reconfiguration configuration and / or an index corresponding to the first identification set;

[0486] third indication information, wherein the third indication information is used to indicate a second configuration identification; the second configuration identification is used to indicate a conditional reconfiguration configuration belonging to a same candidate SN as the conditional reconfiguration configuration.

[0487] In some embodiments, the first information comprises:

[0488] at least one second identification set, wherein the second identification set comprises one of:

[0489] an identification of at least one candidate primary secondary cell;

[0490] an identification of at least one secondary cell group;

[0491] at least one configuration identification, wherein one configuration identification is used to indicate one conditional reconfiguration configuration.

[0492] In some embodiments, the indication information further includes fourth indication information, where the fourth indication information is used to indicate that at least one second identifier set corresponds to at least one set number.

[0493] In some embodiments, the fourth indication information includes an index and a set number corresponding to the index.

[0494] In some embodiments, the indication information further includes fifth indication information, where the fifth indication information is used to indicate an association between the second identifier set and the first identifier set.

[0495] In some embodiments, the fifth indication information includes one of the following:

[0496] an index, and a first identifier set and a second identifier set corresponding to the index;

[0497] a first identifier set and a second identifier set.

[0498] In some embodiments, the network device configures a plurality of conditional reconfiguration configurations for the terminal, and the plurality of conditional reconfiguration configurations correspond to a plurality of candidate SNs, and the configuration information is used to configure a first identifier set of the candidate SNs.

[0499] In some embodiments, the network device configures a plurality of conditional reconfiguration configurations for the terminal, and the plurality of conditional reconfiguration configurations correspond to a plurality of candidate SNs, and the indication information includes first indication information.

[0500] In some embodiments, the network device configures a plurality of conditional reconfiguration configurations for the terminal, and the plurality of conditional reconfiguration configurations correspond to a plurality of candidate SNs, and the indication information includes second indication information.

[0501] In some embodiments, the network device configures a plurality of conditional reconfiguration configurations for the terminal, and the plurality of conditional reconfiguration configurations correspond to a plurality of candidate SNs, and the indication information includes second indication information.

[0502] In some embodiments, the method includes sending a configuration table, where the configuration table includes a first configuration table and / or a second configuration table.

[0503] In some embodiments, the first configuration table is used to add at least one first identifier set, add at least one second identifier set, modify at least one first identifier set, and / or modify at least one second identifier set.

[0504] In some embodiments, the second configuration table is used to delete at least one first identifier set and / or delete at least one second identifier set.

[0505] In some embodiments, the first configuration table includes an index and a first identifier set corresponding to the index; and / or, the first configuration table includes an index and a second identifier set corresponding to the index; and / or, the second configuration table includes an index.

[0506] The above embodiments can be implemented alone or in combination with each other. The optional implementation can refer to the optional implementation of the steps of FIG. 2 and FIG. 3A, which will not be described here.

[0507] FIG. 4A is a flow diagram illustrating a method of information processing according to an embodiment of the present disclosure. As shown in FIG. 4A, the present embodiment relates to a method of information processing, which is performed by a terminal, and the method comprises:

[0508] In step S4101, first information is acquired.

[0509] Optional implementation of step S4101 can refer to optional implementation of step S2101 in FIG. 2 and other associated parts in the embodiments related to FIG. 2, which will not be repeated here.

[0510] In some embodiments, the terminal receives the first information sent by the network device, but is not limited thereto, and can also receive the first information sent by other subjects.

[0511] In some embodiments, the terminal acquires the first information specified by a protocol.

[0512] In some embodiments, the terminal acquires the first information from upper layer(s).

[0513] In some embodiments, the terminal processes to obtain the first information.

[0514] In some embodiments, step S4101 is omitted, and the terminal autonomously implements the function indicated by the first information, or the above function is default or default.

[0515] Optionally, the first information comprises at least one of configuration information, indication information and a configuration table.

[0516] Optionally, the first information comprises at least one of configuration information and indication information; the configuration information can comprise a configuration table.

[0517] In step S4102, a first operation is performed.

[0518] Optional implementation of step S4102 can refer to optional implementation of step S2102 in FIG. 2 and other associated parts in the embodiments related to FIG. 2, which will not be repeated here.

[0519] Optionally, the first operation is performed based on the configuration table.

[0520] Optionally, the first operation is determined based on the configuration table and the first information.

[0521] In step S4103, a key-related operation is determined.

[0522] Optional implementation of step S4103 can refer to optional implementation of step S2103 in FIG. 2 and other associated parts in the embodiments related to FIG. 2, which will not be repeated here.

[0523] Optionally, the key is determined based on the first information.

[0524] The information processing method according to the embodiments of the present disclosure can include at least one of steps S4101 to S4103. For example, step S4101 can be implemented as an independent embodiment; step S4102 can be implemented as an independent embodiment; step S4103 can be implemented as an independent embodiment; a combination of step S4101 and step S4102 can be implemented as an independent embodiment; a combination of step S4102 and step S4103 can be implemented as an independent embodiment; a combination of step S4101 and step S4103 can be implemented as an independent embodiment; a combination of steps S4101 to S4103 can be implemented as an independent embodiment.

[0525] In some embodiments, the order of step S4102 and step S4103 can be exchanged or performed simultaneously.

[0526] In some embodiments, step S4102 and step S4103 can be optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0527] In some embodiments, step S4101 and step S4102 can be optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0528] In some embodiments, step S4101 and step S4103 can be optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0529] FIG. 4B is a flow diagram illustrating an information processing method according to an embodiment of the present disclosure. As shown in FIG. 4B, the embodiments of the present disclosure relate to an information processing method performed by a terminal, and the above method includes:

[0530] Step S4201, receiving first information.

[0531] Optional implementation of step S4201 can refer to optional implementation of step S2101 in FIG. 2, or step S4101 in FIG. 4A, and other related parts in the embodiments related to FIG. 2 and FIG. 4A, which will not be described here.

[0532] Optionally, the first information is used to determine a key-related operation.

[0533] In some embodiments, the key-related operation is determined based on the first information.

[0534] In some embodiments, the key-related operation includes whether to update the key and / or generate the key.

[0535] In some embodiments, based on the first information, determining the key-related operation comprises one of:

[0536] based on the first information, determining the key-related operation when the mobility operation is performed;

[0537] based on the first information, determining the key-related operation after the mobility operation is performed;

[0538] based on the first information, determining the key-related operation when the mobility operation is performed;

[0539] based on the first information, determining the key-related operation after the mobility operation is performed.

[0540] In some embodiments in combination with the second aspect, in some embodiments, the key is a key corresponding to the SN.

[0541] In some embodiments, the mobility operation comprises one of:

[0542] CHO;

[0543] CPAC, wherein the CPAC comprises a primary secondary cell addition CPA and / or a primary secondary cell change CPC;

[0544] subsequent CHO;

[0545] subsequent CPAC, wherein the subsequent CPAC comprises a subsequent CPA and / or a subsequent CPC;

[0546] a mobility LTM for a primary cell or a primary cell group, wherein the LTM comprises an initial LTM and / or a subsequent LTM;

[0547] an LTM for a primary secondary cell or a secondary cell group, wherein the LTM comprises an initial LTM and / or a subsequent LTM.

[0548] In some embodiments, receiving the first information comprises: receiving RRC signaling, wherein the RRC signaling carries the first information.

[0549] In some embodiments, the first information comprises configuration information, wherein the configuration information is used to configure a first identity set; wherein the first identity set is used to identify a set of count values, the count value being a value of a counter; the value of the counter is used to generate the key corresponding to the SN.

[0550] In some embodiments, the configuration information comprises at least one of:

[0551] an index, and a first identity set corresponding to the index;

[0552] an index, and an SN identity and a first identity set corresponding to the index; the SN identity is used to identify a candidate SN;

[0553] an SN identity, and a first identity set corresponding to the SN identity

[0554] In some embodiments, the first information comprises one of:

[0555] receiving at least one conditional reconfiguration configuration; wherein each conditional reconfiguration configuration carries the first information, the first information comprising a first identity set corresponding to the conditional reconfiguration configuration; wherein the conditional reconfiguration configuration is a configuration of a mobility operation;

[0556] receiving a plurality of conditional reconfiguration configurations; wherein a first conditional reconfiguration configuration in the plurality of conditional reconfiguration configurations carries the first information, the first information comprising a first identity set corresponding to the first conditional reconfiguration configuration; at least one second conditional reconfiguration configuration in the plurality of conditional reconfiguration configurations carries the first information, the first information comprising an SN identity, an index, and / or a first configuration identity; the first configuration identity is used to indicate the first conditional reconfiguration configuration; the second conditional reconfiguration configuration is associated with the same candidate SN as the first conditional reconfiguration configuration.

[0557] In some embodiments, the first information comprises: receiving at least one conditional reconfiguration configuration, wherein the conditional reconfiguration comprises indication information; the conditional reconfiguration configuration is a configuration of a mobility operation; wherein the indication information is used to indicate an SN identity and / or a first identity set corresponding to the conditional reconfiguration configuration; the SN identity is used to identify a candidate SN, the candidate SN comprising at least one candidate primary secondary cell and / or a candidate secondary cell group.

[0558] In some embodiments, the indication information further comprises at least one of:

[0559] first indication information, wherein the first indication information is used to indicate an SN identity corresponding to the conditional reconfiguration configuration;

[0560] second indication information, wherein the second indication information is used to indicate a first identity set corresponding to the conditional reconfiguration configuration and / or an index corresponding to the first identity set;

[0561] third indication information, wherein the third indication information is used to indicate a second configuration identity; the second configuration identity is used to indicate a conditional reconfiguration configuration belonging to the same candidate SN as the conditional reconfiguration configuration.

[0562] In some embodiments, the first information comprises:

[0563] at least one second identity set, wherein the second identity set comprises one of:

[0564] an identity of at least one candidate primary secondary cell;

[0565] an identity of the at least one secondary cell group;

[0566] at least one configuration identity, wherein one configuration identity is used to indicate one conditional reconfiguration configuration.

[0567] In some embodiments, the indication information further comprises fourth indication information, wherein the fourth indication information is used to indicate at least one second identity set corresponding to at least one set number.

[0568] In some embodiments, the fourth indication information comprises: an index and a set number corresponding to the index.

[0569] In some embodiments, the indication information further comprises fifth indication information, wherein the fifth indication information is used to indicate an association between the second identity set and the first identity set.

[0570] In some embodiments, the fifth indication information comprises one of:

[0571] an index, and a first identity set and a second identity set corresponding to the index;

[0572] a first identity set and a second identity set.

[0573] In some embodiments, the network device configures a plurality of conditional reconfiguration configurations for the terminal, and the plurality of conditional reconfiguration configurations correspond to a plurality of candidate SNs, the configuration information is used to configure a first identity set of the candidate SN; and / or, the network device configures a plurality of conditional reconfiguration configurations for the terminal, and the plurality of conditional reconfiguration configurations correspond to a plurality of candidate SNs, the indication information comprises the first indication information; and / or, the network device configures a plurality of conditional reconfiguration configurations for the terminal, and the plurality of conditional reconfiguration configurations correspond to a plurality of candidate SNs, one of the second indication information is indicated.

[0574] In some embodiments, the method comprises: receiving a configuration table, wherein the configuration table comprises a first configuration table and / or a second configuration table:

[0575] wherein the first configuration table is used to add at least one first identity set, add at least one second identity set, modify at least one first identity set, and / or modify at least one second identity set;

[0576] the second configuration table is used to delete at least one first identity set and / or delete at least one second identity set.

[0577] In some embodiments, the first configuration table comprises an index and a first identity set corresponding to the index; and / or, the first configuration table comprises an index and a second identity set corresponding to the index; and / or, the second configuration table comprises an index.

[0578] In some embodiments, based on the first information, determining the key-related operation comprises one of:

[0579] based on the first identification set corresponding to the current serving primary secondary cell being same as the first identification set corresponding to the target primary secondary cell, determining not to update the key; wherein the target primary secondary cell is one of the candidate primary secondary cell or the secondary cell group;

[0580] based on the index corresponding to the current serving primary secondary cell being same as the index corresponding to the target primary secondary cell, determining not to update the key;

[0581] based on the first identification set corresponding to the current serving primary secondary cell being different from the first identification set corresponding to the target primary secondary cell, determining to update the key;

[0582] based on the index corresponding to the current serving primary secondary cell being different from the index corresponding to the target primary secondary cell, determining to update the key;

[0583] based on the first identification set corresponding to the current serving primary secondary cell being different from the first identification set corresponding to the target primary secondary cell, determining to generate the key;

[0584] based on the index corresponding to the current serving primary secondary cell being different from the index corresponding to the target primary secondary cell, determining to generate the key.

[0585] In some embodiments, based on the first information, determining the key related operation comprises one of:

[0586] based on the SN identification corresponding to the current serving primary secondary cell being same as the SN identification corresponding to the target primary secondary cell, determining not to update the key; wherein the target primary secondary cell is one of the candidate primary secondary cell or the secondary cell group;

[0587] based on the SN identification corresponding to the current serving primary secondary cell being different from the SN identification corresponding to the target primary secondary cell, determining to update the key;

[0588] based on the SN identification corresponding to the current serving primary secondary cell being different from the SN identification corresponding to the target primary secondary cell, determining to generate the key.

[0589] In some embodiments, based on the first information, determining the key related operation comprises one of:

[0590] based on the set number corresponding to the current serving primary secondary cell being same as the set number corresponding to the target primary secondary cell, determining not to update the key; wherein the target primary secondary cell is one of the candidate primary secondary cell or the secondary cell group;

[0591] based on the set number corresponding to the current serving primary secondary cell being different from the set number corresponding to the target primary secondary cell, determining to update the key;

[0592] based on the set number corresponding to the current serving primary secondary cell being different from the set number corresponding to the target primary secondary cell, determining to generate the key.

[0593] The above-mentioned embodiments can be implemented independently or in combination with each other. For optional implementation, refer to the optional implementation of steps in FIG. 2 and FIG. 4A, which are not described herein again.

[0594] FIG. 4C is a flow diagram of an information processing method according to an embodiment of the present disclosure. As shown in FIG. 4C, the embodiment of the present disclosure relates to an information processing method, which is performed by a terminal, and the method comprises the following steps:

[0595] In step S4301, a key-related operation is determined.

[0596] For optional implementation of step S4301, refer to the optional implementation of step S2103 in FIG. 2, or the optional implementation of step S4103 in FIG. 4A, and other associated parts in the embodiments related to FIG. 2 and FIG. 4A, which are not described herein again.

[0597] The above-mentioned embodiments can be implemented independently or in combination with each other. For optional implementation, refer to the optional implementation of steps in FIG. 2 and FIG. 4A, which are not described herein again.

[0598] FIG. 4D is a flow diagram of an information processing method according to an embodiment of the present disclosure. As shown in FIG. 4D, the embodiment of the present disclosure relates to an information processing method, which is performed by a terminal, and the method comprises the following steps:

[0599] In step S4401, a first operation is performed.

[0600] For optional implementation of step S4401, refer to the optional implementation of step S2102 in FIG. 2, or the optional implementation of step S4102 in FIG. 4A, and other associated parts in the embodiments related to FIG. 2 and FIG. 4A, which are not described herein again.

[0601] The above-mentioned embodiments can be implemented independently or in combination with each other. For optional implementation, refer to the optional implementation of steps in FIG. 2 and FIG. 4A, which are not described herein again.

[0602] FIG. 5 is a flow diagram of an information processing method according to an embodiment of the present disclosure. As shown in FIG. 5, the embodiment of the present disclosure relates to an information processing method, which is used in a communication system, and the method comprises the following steps:

[0603] In step S5101, a network device sends first information to a terminal.

[0604] For optional implementation of step S5101, refer to the optional implementation of step S2101 in FIG. 2, or the optional implementation of step S3101 in FIG. 3A, or the optional implementation of step S4101 in FIG. 4A, and other associated parts in the embodiments related to FIG. 2, FIG. 3A and FIG. 4A, which are not described herein again.

[0605] In step S5102, the terminal determines a key-related operation based on the first information.

[0606] The optional implementation of step S5102 can refer to step S2104 in FIG. 2, step S4104 in FIG. 4A, and other related parts in the embodiments related to FIG. 2, FIG. 3A, and FIG. 4A, which are not described herein again.

[0607] In some embodiments, the above method can include the method described in the embodiments of the information processing system 100 side, network device side, terminal side, and the like, which are not described herein again.

[0608] As shown in FIG. 6, the embodiments of the present disclosure provide an information processing method, comprising:

[0609] Step S6101A, configuration of SN Counter values of each (Per) SN.

[0610] In some embodiments, a set of SN Counter values is configured for each SN, and each set of SN Counter values corresponds to an index (Index), which is used to indicate the corresponding SN. Optionally, the SN Counter values can be the first identifier set in the previous embodiments.

[0611] Step S6101B, a way of indicating the SN or SN Counter List associated with the configuration of CPAC.

[0612] In some embodiments, the indication information is included in the configuration of each CPAC, which is used to indicate the SN associated with the candidate cell / cell group corresponding to the CPAC configuration or the SN Counter Values List associated therewith.

[0613] In some embodiments, the network device configures the UE with a set of cells indicating that the cells belong to the same SN.

[0614] In some embodiments, a plurality of preconfigured SN Counter values are associated with a set of candidate cells belonging to the same SN, and each candidate SN is associated with a set of SN Counter values.

[0615] In some embodiments, the UE can configure a set of SN Counter values and / or a corresponding set of cells (a set of configurations) associated with one or more SNs by using AddMod List and Remove List. The AddMod List and Remove List can be the configuration table in the previous embodiments; wherein the AddMod List is the first configuration table in the previous embodiments; and the Remove List is the second configuration table in the previous embodiments.

[0616] In some embodiments, if the network configures the UE with Subsequent CPAC, if multiple Subsequent CPACs correspond to multiple different Candidate SNs, the network side needs to configure a set of SN Counter values for each SN, and needs to indicate the corresponding SN / SN Counter values set for the CPAC configuration (or candidate cell / cell group).

[0617] Optionally, the configuration of conditional reconfiguration can be the conditional reconfiguration configuration in the previous embodiments.

[0618] Optionally, the method of configuring CPAC:

[0619] The configuration of conditional reconfiguration is used to configure CHO and / or CPAC, and the configuration of conditional reconfiguration can be represented by IE ConditionalReconfiguration, wherein IE ConditionalReconfiguration is used to add, modify and / or release the configuration of conditional reconfiguration, etc.

[0620] Each configuration of conditional reconfiguration includes but is not limited to one or more of the following information: (CPAC is a configuration of conditional reconfiguration; the configuration of CPAC is a configuration of conditional reconfiguration, and each configuration of CPAC corresponds to a candidate PSCell / SCG).

[0621] Conditional reconfiguration (condReconfigId) (the identifier corresponding to the configuration of conditional reconfiguration).

[0622] Conditional execution condition (condExecutionCond) (to trigger the execution of conditional reconfiguration of CHO, CPA, SN-in-CPC without involving MN or MN-initiated inter-SN CPC, the execution condition that needs to be met).

[0623] RRC conditional reconfiguration (condRRCReconfig) (the RRC reconfiguration message applied when the condition is met). Here it corresponds to the candidate cell / cell group configuration.

[0624] Conditional execution condition secondary cell group (condExecutionCondSCG) (the conditional execution condition secondary cell group contains the execution condition that needs to be met in order to trigger the execution of conditional reconfiguration of SN-initiated inter-SN CPC. Meas Ids refers to the Meas configuration related to SCG).

[0625] In some embodiments, the conditional reconfiguration or the conditional reconfiguration configuration can further include explicit or implicit indication information to indicate whether the conditional reconfiguration configuration can be used for Subsequent CPC / CPA. For example, if the conditional reconfiguration configuration includes indication information indicating SN / SN Counter Values, it can be implicitly indicated that the conditional reconfiguration configuration can be used for Subsequent CPC / CPA.

[0626] For the above step S6101, at least one of the following can be included:

[0627] Case 1, the network side can send a set of SN Counter values List to the UE for configuring the available SN Counter values List corresponding to each Candidate SN.

[0628] Wherein, the set of SN Counter values List is sent to the UE through RRC signaling.

[0629] For example, the set of SN Counter values List is configured through conditional reconfiguration (conditionalReconfiguration), and the corresponding configuration is included in the IE ConditionalReconfiguration.

[0630] For example, the specific format 1 is Table 1 in the previous embodiment.

[0631] For example, the specific format 2 is Table 2 in the previous embodiment.

[0632] For example, the specific format 3 is Table 3 in the previous embodiment.

[0633] Wherein, each SN Counter Value can be identified by Sk-Counter, which can be an integer from 0 to 65535.

[0634] Wherein, the index (Index) is the identification corresponding to each SN Counter Value List, and each Index corresponds to a Candidate SN

[0635] Wherein, SN1, SN2, SNn are the identifications of Candidate SNs.

[0636] Case 2, the corresponding SN Counter Value List is included in the conditional reconfiguration configuration.

[0637] (Exemplarily, the conditional reconfiguration configuration can be used for Subsequent CPAC).

[0638] Exemplarily, the SN Counter Value List corresponding to the SN is included in each conditional reconfiguration configuration.

[0639] Exemplarily, for multiple conditional reconfiguration configurations corresponding to the same SN, the SN Counter Value List corresponding to the SN only needs to be included in one of the conditional reconfiguration configurations; the identification or Index of the Candidate SN or the configuration identification corresponding to the conditional reconfiguration configuration including the SN Counter Value List is included in the other conditional reconfiguration configurations corresponding to the SN.

[0640] For the above step S6102, at least one of the following can be included:

[0641] Case 1: the indication information indicating the SN corresponding to the candidate cell / cell group corresponding to the conditional reconfiguration configuration or indicating the SN Counter Values List corresponding to the CPAC configuration is included in each conditional reconfiguration configuration.

[0642] Exemplarily, the conditional reconfiguration configuration can be used for Subsequent CPAC.

[0643] Implementation 1: the first indication information indicating the Candidate SN corresponding to the candidate PSCell / SCG of the CPAC is included in each conditional reconfiguration configuration (the configuration of the CPAC).

[0644] Optionally, the Node ID corresponding to the Candidate SN or other SN identification indicating the SN is indicated.

[0645] Implementation 2: the second indication information indicating the SN Counter Values List corresponding to the configuration of the CPAC is included in each conditional reconfiguration configuration (the configuration of the CPAC).

[0646] Optionally, the Index (also referred to as the Set ID corresponding to the SN Counter Values List) corresponding to the SN Counter Values List or other identification or ID indicating the SN Counter Values List is indicated. Optionally, the Set ID can be the set number in the previous embodiment.

[0647] Implementation 3: the third indication information is contained in each conditional reconfiguration configuration (configuration of CPAC), and the third indication information is used to indicate configuration ID List of other CPAC configurations associated with the same CPAC configuration.

[0648] Case 2: multiple cell lists (CPAC configuration lists) are configured, and each cell list (CPAC configuration list) indicates a cell / CPAC configuration corresponding to the same SN.

[0649] Among them, the set of Cells List is sent to the UE through RRC signaling.

[0650] For example, the set of Cells List is configured through conditional reconfiguration (conditionalReconfiguration) as in Table 4 in the previous embodiment.

[0651] Implementation 1: wherein Cellnx can be represented by Cell ID, and Cell ID is the identifier of each candidate PSCell. For example, PCI, corresponding SSB Frequency.

[0652] Implementation 2: wherein Cellnx can be represented by Cell Group ID, and Cell Group ID is the identifier of each candidate SCG.

[0653] Implementation 3: wherein Cellnx can be represented by the configuration identifier corresponding to the configuration of conditional reconfiguration, and the configuration identifier is the configuration identifier corresponding to each conditional reconfiguration configuration. The conditional reconfiguration configurations corresponding to the configuration identifiers belonging to the same set are all associated with the same SN (SN Counter Values List).

[0654] Optionally, Cells List can be the second identification set in the previous embodiment.

[0655] Case 3: multiple preconfigured SN Counter values are associated with the set of candidate cells belonging to the same SN, and each candidate SN is associated with a set of SN Counter values.

[0656] The network can configure a set to associate Cells List and SN Counter values List.

[0657] For example, the specific format 1 can be Table 5 in the previous embodiment.

[0658] For example, the specific format 2 can be Table 6 in the previous embodiment.

[0659] Step S6102, the UE determines whether to perform K SN update.

[0660] Step S6102A, if the SN Counter Value List corresponding to the current serving PSCell and the SN Counter Value List corresponding to the target PSCell are the same when the UE performs Subsequent CPC, then there is no need to generate a new K SN ; if the SN Counter Value List corresponding to the current serving PSCell and the SN Counter Value List corresponding to the target PSCell are different when the UE performs Subsequent CPC, then a new K SN .

[0661] Optionally, based on the network configuration of the identification that the current PSCell (or the currently applied CPAC configuration) and the target PSCell (or the target configuration) correspond to the same SN Counter value List, or are associated with the same SN Counter value List, then there is no need to generate a new K SN ; otherwise, a new K SN .

[0662] Step S6102B, if the same SN corresponding to the current serving PSCell and the target PSCell when the UE performs Subsequent CPC, then there is no need to generate a new K SN ; if the different SN corresponding to the current serving PSCell and the target PSCell when the UE performs Subsequent CPC, then a new K SN .

[0663] Optionally, based on the network configuration of the identification that the current PSCell (or the currently applied CPAC configuration) and the target PSCell (or the target configuration) correspond to the same SN, or are associated with the same SN, then there is no need to generate a new K SN ; otherwise, a new KSN is generated.

[0664] Step S6102C, if the UE performs Subsequent CPC, the current serving PSCell and the Target PSCell belong to the same Set, then no need to use a new SN Counter to generate a new K SN Step S6102D, if the UE performs Subsequent CPC, the current serving PSCell and the Target PSCell belong to different Sets, then need to use a new SN Counter to generate a new K SN .

[0665] In some embodiments, for step S6101A and step S6101B, the UE can AddMod List and Remove List to configure one or more sets of SN Counter values and / or a corresponding one or more sets of Cells (configuration of one or more sets of CPAC).

[0666] Wherein each set of SN Counter values and / or each corresponding set of Cells (configuration of each set of CPAC) corresponds to an Index.

[0667] Optionally, the network side can use the Remove List to delete one or more sets of SN Counter values and / or a corresponding one or more sets of Cell Ids (configuration ID of one or more sets of CPAC) that the UE has been configured, and the UE carries the Index corresponding to the set to be deleted in the Remove List.

[0668] Optionally, the network side can use the Add / Mod List to add / modify one or more sets of SN Counter values and / or a corresponding one or more sets of Cell Ids (configuration ID of one or more sets of CPAC) that the UE has been configured, and the UE carries the Index corresponding to the set to be added / modified and the content of the corresponding set (such as a set of SN Counter Values) in the AddMod List; if the same Index exists in the UE's existing configuration, replace the original content with this content, if not, add a new set, and the Index and content of this set are configured in the AddMod List.

[0669] In some embodiments, for step S6101A and step S6101B, if the network configures the UE with Subsequent CPAC, and there are multiple Subsequent CPACs corresponding to multiple different Candidate SNs, the network side needs to configure a set of SN Counter values for each SN, and needs to indicate the SN / SN Counter values List corresponding to the CPAC configuration (or candidate cell / cell group).

[0670] In some embodiments, the network device sends the first information to the terminal, but is not limited thereto, and can also send the first information to other subjects.

[0671] The information processing method related to the embodiments of the present disclosure can include at least one of step S6101 to step S6102. For example, step S6101 can be implemented as an independent embodiment; step S6102 can be implemented as an independent embodiment; and the combination of step S6101 and step S6102 can be implemented as an independent embodiment.

[0672] In some embodiments, step S6101 can be optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0673] In some embodiments, step S6102 can be optional, and one or more of these steps can be omitted or replaced in different embodiments.

[0674] The embodiments of the present disclosure also propose a device for implementing any of the above methods, for example, a device including units or modules for implementing each step performed by the terminal in any of the above methods. For another example, another device is also proposed, including units or modules for implementing each step performed by the network device (such as an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0675] It should be understood that the division of units in the above apparatus is only a logical function division, and all or part of them can be integrated into a physical entity or physically separated in actual implementation. In addition, the units in the apparatus can be implemented in the form of processor calling software: for example, the apparatus includes a processor connected with a memory, the memory stores computer instructions, and the processor calls the computer instructions stored in the memory to implement any of the above methods or realize the functions of the units of the above apparatus, wherein the processor is, for example, a general processor such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the apparatus or a memory outside the apparatus. Alternatively, the units in the apparatus can be implemented in the form of hardware circuit, and the functions of part or all of the units can be realized by the design of the hardware circuit, and the above hardware circuit can be understood as one or more processors; for example, in one implementation, the above hardware circuit is an application-specific integrated circuit (ASIC), and the functions of part or all of the units are realized by the design of the logical relationship of elements in the circuit; for example, in another implementation, the above hardware circuit is realized by a programmable logic device (PLD), and a field programmable gate array (FPGA) is taken as an example, which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, so as to realize the functions of part or all of the units. All units of the above apparatus can be implemented in the form of processor calling software, or all units can be implemented in the form of hardware circuit, or part of the units can be implemented in the form of processor calling software, and the remaining part can be implemented in the form of hardware circuit.

[0676] In the embodiments of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), a digital signal processor (DSP), and the like. In another implementation, the processor can implement certain functions through a logical relationship of hardware circuit, and the logical relationship of the hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In the reconfigurable hardware circuit, the processor loads a configuration document to implement the configuration of the hardware circuit. It can be understood that the processor loads instructions to implement the functions of the above part or all units. In addition, the hardware circuit can also be designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), and the like.

[0677] FIG. 7A is a structural schematic diagram of a network device provided by the embodiments of the present disclosure. As shown in FIG. 7A, the network device 7100 comprises at least one of a first transceiver module 7101 and the like. In some embodiments, and the first transceiver module 7102 is configured to transmit first information. Optionally, the first transceiver module 7102 is configured to perform at least one of the receiving and / or transmitting steps (for example, the step S2101 and the like, but not limited to) performed by the network device in any of the above methods, and details are not described herein again.

[0678] FIG. 7B is a structural schematic diagram of a terminal according to an embodiment of the present disclosure. As shown in FIG. 7B, the terminal 7200 includes at least one of a second transceiver module 7201, a second processing module 7202, and the like. In some embodiments, the second transceiver module 7201 is configured to receive first information, and the second processing module 7202 is configured to determine a key-related operation based on the first information. Optionally, the second transceiver module 7201 is configured to perform at least one of the receiving and / or transmitting steps (for example, step S2101, but not limited thereto) performed by the terminal in any of the above methods, details of which are not repeated here. Optionally, the second processing module 7202 is configured to perform at least one of the processing steps (for example, steps S2102 and / or S2103, but not limited thereto) performed by the terminal in any of the above methods, details of which are not repeated here.

[0679] FIG. 8A is a structural schematic diagram of a communication device 8100 according to an embodiment of the present disclosure. The communication device 8100 can be a network device (for example, an access network device, a core network device), a terminal, a chip, a chip system, or a processor supporting the network device or the terminal to implement any of the above methods, and the like. The communication device 8100 can be used to implement the methods described in the above method embodiments, and details can be referred to the descriptions in the above method embodiments.

[0680] As shown in FIG. 8A, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a special-purpose processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (for example, a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, and the like), execute programs, and process data of the programs. The processor 8101 is configured to invoke instructions to enable the communication device 8100 to perform any of the above methods.

[0681] In some embodiments, the communication device 8100 further includes one or more memories 8102 configured to store instructions. Optionally, all or part of the memory 8102 can also be located outside the communication device 8100.

[0682] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the transceiver 8103 performs at least one of the communication steps (for example, at least one of steps S2101 to S2106, but not limited thereto) of the above-described methods, and the processor 8101 performs at least one of the other steps (for example, at least one of steps S2101 to S2106, but not limited thereto, but not limited thereto).

[0683] In some embodiments, the transceiver can include a receiver and a transmitter, which can be separate or integrated together. Optionally, the terms transceiver, transceiving unit, transceiver, transceiving circuit, etc. can be replaced with each other, the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc. can be replaced with each other, and the terms receiver, receiving unit, receiver, receiving circuit, etc. can be replaced with each other.

[0684] Optionally, the communication device 8100 further includes one or more interface circuits 8104 connected with the memory 8102, which can be used to receive signals from the memory 8102 or other devices, and can be used to send signals to the memory 8102 or other devices. For example, the interface circuit 8104 can read the instructions stored in the memory 8102 and send them to the processor 8101.

[0685] The communication device 8100 described in the above embodiments can be a network device or a first device, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 can not be limited by FIG. 8A. The communication device can be a standalone device or can be part of a larger device. For example, the communication device can be: (1) a standalone integrated circuit (IC), or a chip, or a chip system or subsystem; (2) a set of one or more ICs, which can optionally also include storage components for storing data, computer programs; (3) an ASIC, such as a Modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handset, mobile unit, vehicle-mounted device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0686] FIG. 8B is a structural schematic diagram of a chip 8200 according to an embodiment of the present disclosure. For the case where the communication device 8100 is a chip or a chip system, the structural schematic diagram of the chip 8200 shown in FIG. 8B can be referred to, but is not limited thereto.

[0687] The chip 8200 includes one or more processors 8201, and the chip 8200 is configured to execute any of the above methods.

[0688] In some embodiments, the chip 8200 further includes one or more interface circuits 8202 connected with the memory 8203, which can be configured to receive signals from or transmit signals to the memory 8203 or other devices. For example, the interface circuit 8202 can read instructions stored in the memory 8203 and transmit the instructions to the processor 8201.

[0689] In some embodiments, the interface circuit 8202 performs at least one of the communication steps such as transmitting and / or receiving in the above methods, and the processor 8201 performs at least one of the other steps.

[0690] In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc. can be replaced by each other.

[0691] In some embodiments, the chip 8200 further includes one or more memories 8203 for storing instructions. Optionally, all or part of the memory 8203 can be outside the chip 8200.

[0692] The disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer readable storage medium, but is not limited to this, and it can also be a storage medium readable by other devices. Optionally, the storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a transitory storage medium.

[0693] The disclosure also proposes a program product, which, when executed by the communication device 8100, causes the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0694] The disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any of the above methods.

Claims

1. An information processing method characterized by comprising: The method comprises: The network device sends first information, wherein the first information is used for the terminal to determine a key-related operation.

2. The method of claim 1, wherein, The key-related operation comprises at least one of the following: whether to update the key; generating the key.

3. The method according to claim 1 or 2, characterized in that, The first information is used for the terminal to determine a key-related operation, comprises one of the following: The first information is used for the terminal to determine the key-related operation when performing a mobility operation; The first information is used for the terminal to determine the key-related operation after performing the mobility operation.

4. The method according to any one of claims 1 to 3, characterized in that, The key is a key corresponding to a secondary node (SN).

5. The method of claim 3, wherein, The mobility operation comprises at least one of the following: conditional cell handover (CHO); conditional primary and secondary cell addition or change (CPAC), wherein the CPAC comprises primary and secondary cell addition (CPA) and / or primary and secondary cell change (CPC); subsequent CHO; subsequent CPAC, wherein the subsequent CPAC comprises subsequent CPA and / or subsequent CPC; layer 1 and layer 2 triggered mobility (LTM) for a primary cell (PCell) or a master cell group (MCG), wherein the LTM comprises an initial LTM and / or a subsequent LTM; LTM for a primary secondary cell (PSCell) or a secondary cell group (SCG), wherein the LTM comprises the initial LTM and / or the subsequent LTM.

6. The method according to any one of claims 1 to 5, characterized in that, The sending of the first information comprises: sending radio resource control (RRC) signaling, wherein the RRC signaling carries the first information.

7. The method according to any one of claims 1 to 6, wherein, The first information comprises: configuration information, wherein the configuration information is used to configure a first identifier set; the first identifier set is used to identify a set of count values, the count values being values of a counter; the values of the counter are used to generate a key corresponding to an SN.

8. The method of claim 7, wherein, The configuration information comprises at least one of the following: an index and the first identifier set corresponding to the index; the index, an SN identifier corresponding to the index, and the first identifier set; the SN identifier is used to identify a candidate SN; an SN identifier and the first identifier set corresponding to the SN identifier.

9. The method according to any one of claims 1 to 5, characterized in that, The sending of the first information comprises one of the following: sending at least one conditional reconfiguration configuration; wherein each conditional reconfiguration configuration carries the first information, the first information comprising a first identifier set corresponding to the conditional reconfiguration configuration; wherein the conditional reconfiguration configuration is a configuration of a mobility operation; sending a plurality of conditional reconfiguration configurations; wherein a first conditional reconfiguration configuration in the plurality of conditional reconfiguration configurations carries the first information, the first information comprising a first identifier set corresponding to the first conditional reconfiguration configuration; at least one second conditional reconfiguration configuration in the plurality of conditional reconfiguration configurations carries the first information, the first information comprising an SN identifier, an index, and / or a first configuration identifier; the first configuration identifier is used to identify the first conditional reconfiguration configuration; the second conditional reconfiguration configuration is associated with the same candidate SN as the first conditional reconfiguration configuration.

10. The method according to any one of claims 1 to 8, characterized in that, The sending of the first information comprises: sending at least one conditional reconfiguration configuration, wherein the conditional reconfiguration configuration comprises indication information; the conditional reconfiguration configuration is a configuration of a mobility operation; The indication information is used to indicate an SN identifier and / or a first identifier set corresponding to the conditional reconfiguration configuration; the SN identifier is used to identify a candidate SN, and the candidate SN includes at least one candidate primary secondary cell and / or a candidate secondary cell group.

11. The method of claim 10, wherein, The indication information further includes at least one of the following: First indication information, wherein the first indication information is used to indicate the SN identifier corresponding to the conditional reconfiguration configuration; Second indication information, wherein the second indication information is used to indicate the first identifier set corresponding to the conditional reconfiguration configuration and / or an index corresponding to the first identifier set; Third indication information, wherein the third indication information is used to indicate a second configuration identifier; and the second configuration identifier is used to indicate a conditional reconfiguration configuration belonging to the same candidate SN as the conditional reconfiguration configuration.

12. The method according to claim 10 or 11, characterized in that, The first information includes: At least one second identifier set, wherein the second identifier set includes one of the following: An identifier of at least one candidate primary secondary cell; An identifier of at least one secondary cell group; At least one configuration identifier, wherein one configuration identifier is used to indicate one conditional reconfiguration configuration.

13. The method of claim 12, wherein, The indication information further includes: Fourth indication information, wherein the fourth indication information is used to indicate at least one second identifier set corresponding to at least one set number.

14. The method of claim 13, wherein, The fourth indication information includes: an index and a set number corresponding to the index.

15. The method of claim 10 or 11, wherein, The indication information further includes: Fifth indication information, wherein the fifth indication information is used to indicate an associated second identifier set and the first identifier set.

16. The method of claim 15, wherein, The fifth indication information includes one of the following: An index, and a first identifier set and a second identifier set corresponding to the index; A first identifier set and a second identifier set.

17. The method according to any one of claims 10 to 16, characterized in that, The method includes at least one of the following: A network device configures a terminal with multiple conditional reconfiguration configurations, and the multiple conditional reconfiguration configurations correspond to multiple candidate SNs; and the configuration information is used to configure the first identifier set of the candidate SNs; The network device configures the terminal with the multiple conditional reconfiguration configurations, and the multiple conditional reconfiguration configurations correspond to multiple candidate SNs; and the indication information includes first indication information; Or the network device configures the terminal with the multiple conditional reconfiguration configurations, and the multiple conditional reconfiguration configurations correspond to multiple candidate SNs; and the indication information includes second indication information.

18. The method according to any one of claims 1 to 17, characterized in that, The method includes: sending a configuration table, wherein the configuration table includes a first configuration table and / or a second configuration table; The first configuration table is used to add at least one first identifier set, add at least one second identifier set, modify at least one first identifier set, and / or modify at least one second identifier set; The second configuration table is used to delete at least one first identifier set and / or delete at least one second identifier set.

19. The method of claim 18, wherein: The first configuration table includes an index and a first identifier set corresponding to the index; And / or, The first configuration table includes an index and a second identifier set corresponding to the index; And / or, The second configuration table includes an index.

20. An information processing method characterized by comprising: The method includes: A terminal receives first information; determining a key-related operation based on the first information.

21. The method of claim 20, wherein, The determining the key-related operation based on the first information comprises at least one of: whether to update the key; generating the key.

22. The method of claim 20 or 21, wherein, The determining the key-related operation based on the first information, comprises one of: determining the key-related operation when performing a mobility operation based on the first information; determining the key-related operation after performing the mobility operation based on the first information.

23. The method of any one of claims 20 to 22, wherein, The key is a key corresponding to a secondary node (SN).

24. The method of claim 22, wherein, The mobility operation comprises one of: a conditional cell changeover (CHO); a conditional primary and secondary cell addition or change (CPAC), wherein the CPAC comprises a primary and secondary cell addition (CPA) and / or a primary and secondary cell change (CPC); a subsequent CHO; a subsequent CPAC, wherein the subsequent CPAC comprises a subsequent CPA and / or a subsequent CPC; a layer 1 and layer 2 triggered mobility (LTM) for a primary cell (PCell) or a master cell group (MCG), wherein the LTM comprises an initial LTM and / or a subsequent LTM; a LTM for a primary secondary cell (PSCell) or a secondary cell group (SCG), wherein the LTM comprises the initial LTM and / or the subsequent LTM.

25. The method according to any one of claims 20 to 24, characterized in that, The receiving the first information comprises: receiving radio resource control (RRC) signaling, wherein the RRC signaling carries the first information.

26. The method of any one of claims 20 to 25, wherein, The first information comprises: configuration information, wherein the configuration information is used to configure a first identifier set corresponding to at least one candidate SN; the first identifier set is used to identify a set of count values; the count values are used to generate a value of a counter of a key corresponding to the SN.

27. The method of claim 26, wherein, The configuration information comprises at least one of: an index and the first identifier set corresponding to the index; the index, an SN identifier corresponding to the index, and the first identifier set; the SN identifier is used to identify a candidate SN; an SN identifier and the first identifier set corresponding to the SN identifier.

28. The method of any one of claims 20 to 24, wherein, The receiving the first information comprises one of: receiving at least one conditional reconfiguration configuration; wherein each of the conditional reconfiguration configurations carries the first information, the first information comprising a first identifier set corresponding to the conditional reconfiguration configuration; wherein the conditional reconfiguration configuration is a configuration of a mobility operation; receiving a plurality of conditional reconfiguration configurations; wherein a first conditional reconfiguration configuration in the plurality of conditional reconfiguration configurations carries the first information, the first information comprising a first identifier set corresponding to the first conditional reconfiguration configuration; at least one second conditional reconfiguration configuration in the plurality of conditional reconfiguration configurations carries the first information, the first information comprising an SN identifier, an index, and / or a first configuration identifier; the first configuration identifier is used to indicate the first conditional reconfiguration configuration; the second conditional reconfiguration configuration is associated with the same candidate SN as the first conditional reconfiguration configuration.

29. The method of any one of claims 20 to 27, wherein, The receiving the first information comprises: receiving at least one conditional reconfiguration configuration, wherein the conditional reconfiguration comprises indication information; the conditional reconfiguration configuration is a configuration of a mobility operation; The indication information is used to indicate an SN identifier and / or a first identifier set corresponding to the conditional reconfiguration configuration; the SN identifier is used to identify a candidate SN, and the candidate SN includes at least one candidate primary secondary cell and / or a candidate secondary cell group.

30. The method of claim 29, wherein, The indication information further includes at least one of the following: First indication information, wherein the first indication information is used to indicate the SN identifier corresponding to the conditional reconfiguration configuration; Second indication information, wherein the second indication information is used to indicate the first identifier set corresponding to the conditional reconfiguration configuration and / or an index corresponding to the first identifier set; Third indication information, wherein the third indication information is used to indicate a second configuration identifier; and the second configuration identifier is used to indicate a conditional reconfiguration configuration belonging to the same candidate SN as the conditional reconfiguration configuration.

31. The method of claim 29 or 30, wherein, The first information includes: At least one second identifier set, wherein the second identifier set includes one of the following: An identifier of at least one candidate primary secondary cell; An identifier of at least one secondary cell group; At least one configuration identifier, wherein one configuration identifier is used to indicate one conditional reconfiguration configuration.

32. The method of claim 31, wherein, The indication information further includes: Fourth indication information, wherein the fourth indication information is used to indicate at least one second identifier set corresponding to at least one set number.

33. The method of claim 32, wherein, The fourth indication information includes: an index and a set number corresponding to the index.

34. The method of claim 29 or 30, wherein, The indication information further includes: Fifth indication information, wherein the fifth indication information is used to indicate an associated second identifier set and the first identifier set.

35. The method of claim 34, wherein, The fifth indication information includes one of the following: An index, and a first identifier set and a second identifier set corresponding to the index; A first identifier set and a second identifier set.

36. The method of any one of claims 29 to 35, wherein, The method includes at least one of the following: A network device configures a terminal with multiple conditional reconfiguration configurations, and the multiple conditional reconfiguration configurations correspond to multiple candidate SNs; and the configuration information is used to configure the first identifier set of the candidate SNs; The network device configures the terminal with the multiple conditional reconfiguration configurations, and the multiple conditional reconfiguration configurations correspond to multiple candidate SNs; and the indication information includes first indication information; Or the network device configures the terminal with the multiple conditional reconfiguration configurations, and the multiple conditional reconfiguration configurations correspond to multiple candidate SNs; and the indication information includes second indication information.

37. The method of any one of claims 20 to 36, wherein, The method includes receiving a configuration table, wherein the configuration table includes a first configuration table and / or a second configuration table: The first configuration table is used to add at least one first identifier set, add at least one second identifier set, modify at least one first identifier set, and / or modify at least one second identifier set; The second configuration table is used to delete at least one first identifier set and / or delete at least one second identifier set.

38. The method of claim 37, wherein: The first configuration table includes an index and a first identifier set corresponding to the index; And / or, The first configuration table includes an index and a second identifier set corresponding to the index; The second configuration table includes an index.

39. The method of any one of claims 20 to 38, wherein, The key-related operation is determined based on the first information, includes one of the following: determining not to update the key based on the first identification set corresponding to the current serving primary secondary cell being same as the first identification set corresponding to the target primary secondary cell, wherein the target primary secondary cell is one of a candidate primary secondary cell or a secondary cell group; determining not to update the key based on the index corresponding to the current serving primary secondary cell being same as the index corresponding to the target primary secondary cell; determining to update the key based on the first identification set corresponding to the current serving primary secondary cell being different from the first identification set corresponding to the target primary secondary cell; determining to update the key based on the index corresponding to the current serving primary secondary cell being different from the index corresponding to the target primary secondary cell; determining to generate the key based on the first identification set corresponding to the current serving primary secondary cell being different from the first identification set corresponding to the target primary secondary cell; determining to generate the key based on the index corresponding to the current serving primary secondary cell being different from the index corresponding to the target primary secondary cell.

40. The method of any one of claims 20 to 38, wherein, determining the key related operation based on the first information, comprising one of: determining not to update the key based on the SN identification corresponding to the current serving primary secondary cell being same as the SN identification corresponding to the target primary secondary cell, wherein the target primary secondary cell is one of a candidate primary secondary cell or a secondary cell group; determining to update the key based on the SN identification corresponding to the current serving primary secondary cell being different from the SN identification corresponding to the target primary secondary cell; determining to generate the key based on the SN identification corresponding to the current serving primary secondary cell being different from the SN identification corresponding to the target primary secondary cell.

41. The method of any one of claims 20 to 38, wherein, determining the key based on the first information, comprising one of: determining not to update the key based on the set number corresponding to the current serving primary secondary cell being same as the set number corresponding to the target primary secondary cell, wherein the target primary secondary cell is one of a candidate primary secondary cell or a secondary cell group; determining to update the key based on the set number corresponding to the current serving primary secondary cell being different from the set number corresponding to the target primary secondary cell; determining to generate the key based on the set number corresponding to the current serving primary secondary cell being different from the set number corresponding to the target primary secondary cell.

42. A network device, comprising: comprising: a first transceiver module configured to send first information, wherein the first information is used by a terminal to determine a key related operation.

43. A terminal, characterized by comprising: a second transceiver module configured to receive first information; a processing module configured to determine a key related operation based on the first information.

44. A network device, comprising: comprising: one or more processors; wherein the network device is configured to perform the information processing method of any of claims 1-19.

45. A terminal, characterized by comprising: one or more processors; wherein the terminal is configured to perform the information processing method of any of claims 20-41.

46. A communication system, characterized by comprising: a network device and a terminal, wherein the network device is configured to implement the information processing method of any of claims 1-19, and the terminal is configured to implement the information processing method of any of claims 20-41.

47. A storage medium, the storage medium storing instructions, wherein, when the instructions are run on a communication device, cause the communication device to perform the information processing method of any of claims 1-19, or 20-41.

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