WO2022116803A1 - 信息处理方法、装置、设备和处理器可读存储介质 - Google Patents

信息处理方法、装置、设备和处理器可读存储介质 Download PDF

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Publication number
WO2022116803A1
WO2022116803A1 PCT/CN2021/130606 CN2021130606W WO2022116803A1 WO 2022116803 A1 WO2022116803 A1 WO 2022116803A1 CN 2021130606 W CN2021130606 W CN 2021130606W WO 2022116803 A1 WO2022116803 A1 WO 2022116803A1
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Prior art keywords
key update
base station
information
perform
location information
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PCT/CN2021/130606
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English (en)
French (fr)
Inventor
毕晓宇
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大唐移动通信设备有限公司
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Publication of WO2022116803A1 publication Critical patent/WO2022116803A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0064—Transmission or use of information for re-establishing the radio link of control information between different access points
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • H04W36/322—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data by location data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/06—Airborne or Satellite Networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular, to an information processing method, apparatus, device, and processor-readable storage medium.
  • the handover in the terrestrial cellular network is to provide continuous and stable service to UE (User Equipment, user equipment).
  • the handover is mainly divided into three scenarios: intra-base station handover, Xn handover between base stations, and inter-system handover.
  • intra-base station handover In the handover process, in order to ensure the security of the AS (Access Stratum, access layer) layer key and the forward and backward security characteristics, it is necessary to calculate the As layer root key during the handover process between the source base station and the target base station, and use the The encryption algorithm and integrity algorithm of the key and the AS layer implement security protection for the signaling and data of the AS layer.
  • AS Access Stratum, access layer
  • the key derivation of the UE in the handover process is performed synchronously with the cell update process, that is, the cell handover will inevitably lead to the key update.
  • the moving speed of the satellite is too fast. If the processing method of the terrestrial network is used, the key will be frequently derived, which will affect the switching efficiency.
  • Embodiments of the present disclosure provide an information processing method, apparatus, device, and processor-readable storage medium, so as to ensure the handover efficiency of the UE during the handover process of the satellite network.
  • an embodiment of the present disclosure provides an information processing method, including:
  • whether to perform key update is determined according to the location information and ephemeris information of the UE.
  • determining whether to perform key update according to the location information and ephemeris information of the UE includes:
  • the UE If the UE is about to switch from the coverage area of the first satellite beam to the coverage area of the second satellite beam, it is determined to perform a key update.
  • the coverage area of the second satellite beam corresponds to multiple ground cells
  • Perform key updates including:
  • keys are derived for the plurality of terrestrial cells.
  • determining whether to perform key update according to the location information and ephemeris information of the UE includes:
  • the first mapping relationship is a mapping relationship between a satellite beam and a terrestrial base station cell
  • the UE If the UE is handed over from the ground base station cell corresponding to the first satellite beam to the ground base station cell corresponding to the second satellite beam, it is determined to perform key update.
  • the acquiring the first mapping relationship includes: acquiring the pre-stored first mapping relationship.
  • the method is performed by a ground base station; the method further includes:
  • key update indication information is sent to the satellite system, and the satellite system sends key update indication information to the UE.
  • the method is performed by the target ground base station
  • the obtaining the location information of the user equipment UE sent by the satellite system includes:
  • the location information of the UE sent by the source ground base station is received, and the source ground base station obtains the location information of the UE from the satellite system.
  • the method also includes:
  • key update indication information is sent to the source ground base station, and the source ground base station sends key update indication information to the UE.
  • the method is executed by the source gateway station
  • the obtaining the location information of the user equipment UE sent by the satellite system includes:
  • the location information of the UE sent by the source ground base station is received, and the source ground base station acquires the location information of the UE from the satellite system.
  • the method also includes:
  • an embodiment of the present disclosure further provides an information processing method, which is executed by a UE, including:
  • Receiving key update indication information wherein the key update indication information is sent by the network device when the key update is determined to be performed according to the location information and ephemeris information of the UE;
  • the key is updated according to the key update instruction.
  • the receiving key update indication information includes:
  • RRC Radio Resource Control, Radio Resource Control
  • an embodiment of the present disclosure further provides an information processing method, executed by a satellite system, including:
  • the location information of the UE is used to enable the network device to determine whether to perform key update according to the location information and ephemeris information of the UE when the handover is determined to be performed according to the measurement result reported by the UE .
  • the network equipment includes a ground base station; the method further includes:
  • a handover request confirmation sent by the ground base station is received, where the handover request confirmation includes key update indication information.
  • an embodiment of the present disclosure provides an information processing apparatus, including a memory, a transceiver, and a processor:
  • the memory is used to store a computer program; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations:
  • whether to perform key update is determined according to the location information and ephemeris information of the UE.
  • processor is also used for:
  • the UE If the UE is about to switch from the coverage area of the first satellite beam to the coverage area of the second satellite beam, it is determined to perform a key update.
  • the coverage area of the second satellite beam corresponds to multiple ground cells
  • the processor is further configured to: derive keys for the plurality of terrestrial cells within a predetermined time.
  • processor is also used for:
  • the first mapping relationship is a mapping relationship between a satellite beam and a terrestrial base station cell
  • the UE If the UE is handed over from the ground base station cell corresponding to the first satellite beam to the ground base station cell corresponding to the second satellite beam, it is determined to perform key update.
  • the processor is further configured to: acquire the pre-stored first mapping relationship.
  • the device is applied to a ground base station; the processor is further used for:
  • key update indication information is sent to the satellite system, and the satellite system sends key update indication information to the UE.
  • the device is applied to a target ground base station; the processor is further used for:
  • the location information of the UE sent by the source ground base station is received, and the source ground base station acquires the location information of the UE from the satellite system.
  • processor is also used for:
  • key update indication information is sent to the source ground base station, and the source ground base station sends key update indication information to the UE.
  • the device is applied to the source gateway; the processor is further used for:
  • the location information of the UE sent by the source ground base station is received, and the source ground base station acquires the location information of the UE from the satellite system.
  • processor is also used for:
  • an embodiment of the present disclosure provides an information processing apparatus, including a memory, a transceiver, and a processor:
  • the memory is used to store a computer program; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations:
  • Receiving key update indication information wherein the key update indication information is sent by the network device when the key update is determined to be performed according to the location information and ephemeris information of the UE;
  • the key is updated according to the key update instruction.
  • processor is also used for:
  • an embodiment of the present disclosure provides an information processing apparatus, including a memory, a transceiver, and a processor:
  • the memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and perform the following operations:
  • the location information of the UE is used to enable the network device to determine whether to perform key update according to the location information and ephemeris information of the UE when the handover is determined to be performed according to the measurement result reported by the UE .
  • processor is also used for:
  • a handover request confirmation sent by the ground base station is received, where the handover request confirmation includes key update indication information.
  • an embodiment of the present disclosure further provides an information processing apparatus, including:
  • a first obtaining unit configured to obtain the position information of the UE sent by the satellite system
  • a first processing unit configured to determine whether to perform key update according to the location information and ephemeris information of the UE when it is determined to perform handover according to the measurement result reported by the UE.
  • an embodiment of the present disclosure further provides an information processing apparatus, executed by a UE, including:
  • a first receiving unit configured to receive key update indication information, wherein the key update indication information is sent by the network device when it is determined to perform key update according to the location information and ephemeris information of the UE;
  • the first processing unit is configured to update the key according to the key update instruction.
  • an embodiment of the present disclosure further provides an information processing apparatus, which is applied to a satellite system, including:
  • a first sending unit configured to send the location information of the UE, where the location information of the UE is used to enable the network device to perform the handover according to the measurement result reported by the UE, according to the location information and ephemeris information of the UE , to determine whether to perform a key update.
  • an embodiment of the present disclosure further provides a readable storage medium, where a program is stored on the readable storage medium, and when the program is executed by a processor, the steps in the above-mentioned information processing method are implemented.
  • FIG. 1 is one of the flowcharts of the information processing method provided by an embodiment of the present disclosure
  • FIG. 2 is the second flowchart of the information processing method provided by the embodiment of the present disclosure
  • FIG. 3 is a third flowchart of an information processing method provided by an embodiment of the present disclosure.
  • FIG. 4 is the fourth flowchart of the information processing method provided by the embodiment of the present disclosure.
  • FIG. 5 is the fifth flowchart of the information processing method provided by the embodiment of the present disclosure.
  • FIG. 6 is a sixth flowchart of an information processing method provided by an embodiment of the present disclosure.
  • FIG. 7 is one of the structural diagrams of an information processing apparatus provided by an embodiment of the present disclosure.
  • FIG. 8 is a second structural diagram of an information processing apparatus provided by an embodiment of the present disclosure.
  • FIG. 9 is a third structural diagram of an information processing apparatus provided by an embodiment of the present disclosure.
  • FIG. 10 is a fourth structural diagram of an information processing apparatus provided by an embodiment of the present disclosure.
  • FIG. 11 is a fifth structural diagram of an information processing apparatus provided by an embodiment of the present disclosure.
  • the term "and/or" describes the association relationship of associated objects, and indicates that there can be three kinds of relationships. For example, A and/or B can indicate that A exists alone, A and B exist at the same time, and B exists alone these three situations.
  • the character “/” generally indicates that the associated objects are an "or" relationship.
  • the term “plurality” refers to two or more than two, and other quantifiers are similar.
  • the embodiments of the present disclosure provide an information processing method, apparatus, device, and processor-readable storage medium, so as to ensure the handover efficiency of the UE during the handover process of the satellite network.
  • the method and the device are conceived based on the same application. Since the principles of the method and the device for solving the problem are similar, the implementation of the device and the method can be referred to each other, and repeated descriptions will not be repeated here.
  • FIG. 1 is a flowchart of an information processing method provided by an embodiment of the present disclosure, as shown in FIG. 1, including the following steps:
  • Step 101 Acquire the location information of the UE sent by the satellite system.
  • the embodiments of the present disclosure may be implemented by network equipment such as a ground base station, a source gateway station, and the like.
  • the satellite system may send the location information of the UE according to a preset period.
  • equipment such as a ground base station, a source gateway station, etc. can receive the location information of the UE sent by the satellite system.
  • Step 102 When it is determined to perform handover according to the measurement result reported by the UE, determine whether to perform key update according to the location information and ephemeris information of the UE.
  • the time, position, speed and other running states of the celestial body can be determined by orbital parameters, so as to obtain the ephemeris information.
  • (1) According to the location information and ephemeris information of the UE, determine whether the UE is about to switch from the coverage area of the first satellite beam to the coverage area of the second satellite beam. If the UE is about to switch from the coverage area of the first satellite beam to the coverage area of the second satellite beam, it is determined to perform key update; otherwise, key update is not performed.
  • the meaning of "coming soon” can be understood as an action that the UE will complete the handover within a certain period of time.
  • the time is related to the moving speed of the UE. The faster you move, the shorter this time.
  • the first satellite beam and the second satellite beam both refer to satellite beams whose coverage area can cover the UE.
  • the coverage area of the second satellite beam corresponds to multiple terrestrial cells. Then, in this case, in order to reduce the frequency of key derivation, keys may be derived for the plurality of terrestrial cells within a predetermined time.
  • the first mapping relationship is a mapping relationship between a satellite beam and a terrestrial base station cell. Then, according to the location information and ephemeris information of the UE, it is determined whether the UE is about to switch from the coverage area of the first satellite beam to the coverage area of the second satellite beam.
  • the UE If the UE is about to switch from the coverage area of the first satellite beam to the coverage area of the second satellite beam, determine whether the UE switches from the ground base station cell corresponding to the first satellite beam to the The ground base station cell corresponding to the second satellite beam; if the UE is switched from the ground base station cell corresponding to the first satellite beam to the ground base station cell corresponding to the second satellite beam, it is determined to perform key update; otherwise, it is not performed Key update.
  • the first mapping relationship may be pre-stored. Therefore, in this case, the pre-stored first mapping relationship may be acquired.
  • the first mapping relationship can be configured by a network device such as a base station according to ephemeris information, and can be updated regularly according to a base station or operator policy, or stored on a network device such as a base station in a pre-configured manner.
  • the ground base station may further send key update indication information to the satellite system and send the key to the UE when it is determined to perform key update Update instructions.
  • the ground base station may also send key update indication information to the satellite system, and the satellite system sends key update indication information to the UE.
  • step 101 if the method is executed by a target ground base station, the target ground base station receives the location information of the UE sent by the source ground base station, and the source ground base station receives the location information of the UE from the satellite The system obtains the location information of the UE. If it is determined to perform key update, the target ground base station sends key update indication information to the source ground base station, and the source ground base station sends key update indication information to the UE.
  • step 101 if the method is executed by the source gateway station, the source gateway station receives the location information of the UE sent by the source ground base station, and the source ground base station obtains from the satellite system location information of the UE. If it is determined to perform key update, the source gateway station sends a handover request to the target ground base station, where the handover request includes key update indication information, and sends key update indication information to the source ground base station, the source ground base station Send key update indication information to the UE.
  • FIG. 2 is a flowchart of an information processing method provided by an embodiment of the present disclosure, executed by a UE, as shown in FIG. 2, including the following steps:
  • Step 201 Receive key update indication information, wherein the key update indication information is sent by a network device in the case of determining to perform key update according to the location information and ephemeris information of the UE.
  • the UE may receive the key update indication information sent by the ground base station through RRC signaling.
  • the UE may also receive the key update instruction sent by the satellite system, and the satellite system is the key update instruction obtained by the base station.
  • Step 202 Update the key according to the key update instruction.
  • updating the key includes derivation of the key, etc.
  • the network device and the UE synchronize and maintain the correspondence between the key and ephemeris information, as well as the number of key updates and the number of satellite operation weeks.
  • FIG. 3 is a flowchart of an information processing method provided by an embodiment of the present disclosure, executed by a satellite system, as shown in FIG. 3, including the following steps:
  • Step 301 Send the location information of the UE, where the location information of the UE is used to make the network device determine whether to perform the handover according to the location information and ephemeris information of the UE when the handover is determined to be performed according to the measurement result reported by the UE. Key update.
  • the method may further include: sending a handover request to the ground base station, and receiving a handover request confirmation sent by the ground base station, where the handover request confirmation includes key update indication information.
  • the satellite system may also send a key update instruction to the UE after receiving the key update instruction information.
  • FIG. 4 is a flowchart of an information processing method provided by an embodiment of the present disclosure.
  • the UE corresponds to different cells in the same base station.
  • the base station will derive a plurality of keys to be used subsequently for the cell where the UE is located or is about to enter according to the location information of the UE.
  • Step 401 UE measurement reporting.
  • the UE When the measurement conditions are met, the UE records the measurement object measurement results according to the measurement configuration parameters; when the measurement reporting conditions are met, the UE reports the measurement results to the network side through a MeasurementReport (measurement report) message.
  • MeasurementReport Measurement report
  • Step 402 When the UE enters the area of the satellite B, the satellite B synchronously sends the satellite synchronization parameters and the location information of the UE to the base station (gNB) and the UE.
  • the base station gNB
  • Step 403 If the base station decides to perform handover according to the measurement report of the UE, then the base station determines whether to perform key derivation.
  • the base station decides whether to trigger the key update at the moment when the base station decides to switch.
  • whether to perform key derivation may be based on whether handover is about to occur in the coverage area of the satellite beam as a judgment basis, or whether a handover is about to occur in a base station cell may be used as a judgment basis.
  • the base station can determine whether the UE is about to be handed over to another satellite beam coverage area according to the ephemeris information and the position information of the UE. If yes, then perform a key update on OK.
  • the base station will calculate the key of the next satellite cell according to the ephemeris information, and further derive the satellite key Ksatellite based on the base station key KgNB. In practical applications, for a certain satellite, the base station will deduce the timing relationship according to the key of the satellite beam cell, and decide whether to perform the key derivation in the handover process based on the ephemeris information and the key sequence relationship of the satellite.
  • the base station can determine whether the UE is about to switch to the beam coverage area of another satellite (eg, satellite C) according to the ephemeris information and the position information of the UE. If so, the base station will also judge whether the satellites corresponding to the UE before and after the handover correspond to the same base station cell according to the mapping relationship between the satellite beam and the ground base station cell. For example, assuming that the UE is about to be handed over from satellite B to satellite C, the base station also needs to determine whether satellite B and satellite C correspond to the same base station cell. If it corresponds to the same base station cell, then it is determined to perform key derivation, otherwise, no key derivation is performed.
  • another satellite eg, satellite C
  • the base station also needs to determine whether satellite B and satellite C correspond to the same base station cell. If it corresponds to the same base station cell, then it is determined to perform key derivation, otherwise, no key derivation is performed.
  • Step 404 Satellite B sends a handover request to the base station.
  • Step 405 If the base station decides to perform key derivation, it sends a handover request confirmation message to satellite B, which carries a key update instruction.
  • Step 406 the base station sends the key update indication to the UE through the RRC configuration message.
  • the network and the UE synchronize and maintain the correspondence between the key and the ephemeris information, as well as the number of key updates and the number of satellite operation weeks.
  • the source cell performs data forwarding and SN state transmission operations to the target cell, so that when the UE accesses the target cell, the target cell knows where to start transmitting data for the UE.
  • the UE uses the configuration in the RRCReconfiguration message to establish a connection with the target cell and informs the target cell that the access is successful through the RRCReconfigurationComplete (RRC configuration complete) message.
  • the base station notifies the core network to change the data route through the path change request, and after the data route change is confirmed, the core network replies the path change request confirmation to the target cell.
  • the target cell notifies the source cell to release the context of the UE after receiving the confirmation of the path switching request returned by the core network.
  • FIG. 5 is a flowchart of an information processing method provided by an embodiment of the present disclosure.
  • the UE corresponds to different base stations in the same gateway.
  • the base station will derive a plurality of keys to be used subsequently for the cell where the UE is located or is about to enter according to the location information of the UE.
  • Step 501 UE measurement reporting.
  • the UE When the measurement conditions are met, the UE records the measurement object measurement results according to the measurement configuration parameters; when the measurement reporting conditions are met, the UE reports the measurement results to the network side through a MeasurementReport (measurement report) message.
  • MeasurementReport Measurement report
  • Step 502 When the UE enters the area of the satellite B, the satellite B will synchronously send the satellite synchronization parameters and the location information of the UE to the source base station (source gNB) and the UE.
  • source gNB source base station
  • Step 503 The source base station determines to perform handover according to the measurement report of the UE, sends a handover instruction to the target base station, and sends the position information of the UE received from satellite B to the target base station.
  • Step 504 The target base station decides whether to perform key derivation.
  • the target base station finds that the UE is about to leave the coverage area and enter the next cell according to the ephemeris information, it will give up the key derivation of the current cell and execute the key derivation of the next cell in advance; According to the location judgment, the UE will stay in this cell for enough time, and it is necessary to derive the key for this residence time, then the decision key is derived.
  • the method for determining whether the target base station knows whether to perform key derivation is the same as the method for determining whether the base station knows whether to perform key derivation in the embodiment shown in FIG. 4 .
  • Step 505 The target base station sends a handover request confirmation to the source base station, which carries a key update instruction.
  • Step 506 the base station sends the key update indication to the UE through the RRC configuration message.
  • the network and the UE synchronize and maintain the correspondence between the key and the ephemeris information, as well as the number of key updates and the number of satellite operation weeks.
  • the source cell also performs data forwarding and SN state transmission operations to the target cell, so that when the UE accesses the target cell, the target cell knows where to start transmitting data for the UE.
  • the UE After receiving the RRCReconfiguration message sent from the network side, the UE establishes a connection with the target cell by using the configuration in the RRCReconfiguration message and informs the target cell that the access is successful through the RRCReconfigurationComplete message.
  • the target base station notifies the core network to change the data route through the path change request, and after the data route change is confirmed, the core network replies to the target cell for confirmation of the path change request.
  • the target cell notifies the source cell to release the context of the UE after receiving the confirmation of the path switching request returned by the core network.
  • FIG. 6 is a flowchart of an information processing method provided by an embodiment of the present disclosure.
  • different base stations are between different gateways.
  • the base station will derive a plurality of keys to be used subsequently for the cell where the UE is located or is about to enter according to the location information of the UE.
  • Step 601 UE measurement reporting.
  • the UE When the measurement conditions are met, the UE records the measurement object measurement results according to the measurement configuration parameters; when the measurement reporting conditions are met, the UE reports the measurement results to the network side through a MeasurementReport (measurement report) message.
  • MeasurementReport Measurement report
  • Step 602 When the UE enters the area of the satellite B, the satellite B sends the satellite synchronization parameters and the position information of the UE to the source base station (source gNB).
  • source gNB source base station
  • Step 603 The source base station determines to perform handover according to the measurement report of the UE.
  • Step 604 The source base station sends a handover preparation instruction to the source gateway station, and sends the location information of the UE received from the satellite B to the source gateway station.
  • Step 605 The source gateway decides whether to perform key derivation.
  • the source gateway station finds that the UE is about to leave the coverage area and enter the next cell according to the ephemeris information, it will give up the key derivation of this cell and execute the key derivation of the next cell in advance; if the target gNB uses the ephemeris information and The location of the UE determines that the UE will stay in the cell for a sufficient time, and it is necessary to derive the key for this residence time, and then the decision key is derived.
  • the method for the source gateway station to determine whether it knows whether to perform key derivation is the same as the method for the base station to determine whether it knows to perform key derivation in the embodiment shown in FIG. 4 .
  • Step 606 The source gateway station sends a handover request to the target base station, carrying a key update instruction.
  • Step 607 The target base station sends a handover request confirmation to the source gateway station.
  • Step 608 The source gateway station sends a handover command to the source base station, carrying a key switch instruction, which is used to instruct to perform key derivation due to the handover.
  • Step 609 The source base station sends a handover command to the UE, carrying a key handover instruction, which is used to instruct to perform key derivation due to handover.
  • the network and the UE synchronize and maintain the correspondence between the key and the ephemeris information, as well as the number of key updates and the number of satellite operation weeks.
  • Step 610 the UE sends the handover complete to the target base station.
  • the target base station sends a handover notification to the source gateway
  • the source gateway sends a UE context release command to the source base station
  • the source base station sends a UE context release complete message to the source gateway.
  • FIG. 7 is a structural diagram of an information processing apparatus provided by an embodiment of the present disclosure. Since the principle of the information processing apparatus for solving the problem is similar to that of the information processing method in the embodiment of the present disclosure, the implementation of the information processing apparatus may refer to the implementation of the method, and the repetition will not be repeated.
  • the information processing apparatus 700 includes:
  • the first obtaining unit 701 is configured to obtain the location information of the UE sent by the satellite system; the first processing unit 702 is configured to perform handover according to the measurement result reported by the UE, according to the location information and ephemeris of the UE. information to determine whether to perform a key update.
  • the first processing unit 702 includes: a first determination subunit, configured to determine whether the UE is about to switch from the coverage area of the first satellite beam to the second satellite according to the location information and ephemeris information of the UE the coverage area of the beam; and a second determining submodule, configured to determine to perform key update if the UE is about to switch from the coverage area of the first satellite beam to the coverage area of the second satellite beam.
  • the coverage area of the second satellite beam corresponds to multiple terrestrial cells; the apparatus may further include: a second processing unit configured to derive keys for the multiple terrestrial cells within a predetermined time.
  • the first processing unit 702 includes:
  • the first acquisition sub-module is used to acquire a first mapping relationship, wherein the first mapping relationship is the mapping relationship between satellite beams and ground base station cells; the first determination sub-module is configured to obtain a first mapping relationship according to the location information of the UE and the satellite calendar information to determine whether the UE is about to be switched from the coverage area of the first satellite beam to the coverage area of the second satellite beam; the second determination submodule is used to determine whether the UE is about to be switched from the coverage area of the first satellite beam to the coverage area of the second satellite beam.
  • the third determination submodule for determining to perform key update if the UE switches from the ground base station cell corresponding to the first satellite beam to the ground base station cell corresponding to the second satellite beam.
  • the first obtaining unit is configured to obtain the pre-stored first mapping relationship.
  • the apparatus is applied to a terrestrial base station.
  • the apparatus may further include: a first sending unit, configured to: if it is determined to perform key update, send key update indication information to the satellite system, and send key update indication information to the UE; or if it is determined to perform key update In the key update, the key update instruction information is sent to the satellite system, and the key update instruction information is sent by the satellite system to the UE.
  • the apparatus is applied to a target ground base station.
  • the first obtaining unit 701 is configured to receive the position information of the UE sent by a source ground base station, and the source ground base station obtains the position information of the UE from the satellite system.
  • the apparatus may further include: a second sending unit, configured to send key update indication information to the source ground base station if it is determined to perform key update, and the source ground base station sends key update to the UE Instructions.
  • the apparatus is applied to a source gateway.
  • the first obtaining unit 701 is configured to receive the position information of the UE sent by a source ground base station, and the source ground base station obtains the position information of the UE from the satellite system.
  • the apparatus may further include: a third sending unit, configured to send a handover request to the target ground base station, where the handover request includes key update indication information; and send key update indication information to the source ground base station, The source ground base station sends key update indication information to the UE.
  • FIG. 8 is a structural diagram of an information processing apparatus provided by an embodiment of the present disclosure, which is applied to a UE. Since the principle of the information processing apparatus for solving the problem is similar to that of the information processing method in the embodiment of the present disclosure, the implementation of the information processing apparatus may refer to the implementation of the method, and the repetition will not be repeated.
  • the information processing apparatus 800 includes:
  • a first receiving unit 801 configured to receive key update indication information, wherein the key update indication information is sent by a network device when it is determined to perform key update according to the location information and ephemeris information of the UE;
  • the first processing unit 802 is configured to update the key according to the key update instruction.
  • the apparatus may further include: a second receiving unit, configured to receive the key update indication information sent by the ground base station through radio resource control RRC signaling; or receive key update indication information sent by the satellite system.
  • a second receiving unit configured to receive the key update indication information sent by the ground base station through radio resource control RRC signaling; or receive key update indication information sent by the satellite system.
  • FIG. 9 is a structural diagram of an information processing apparatus provided by an embodiment of the present disclosure, which is applied to a satellite system. Since the principle of the information processing apparatus for solving the problem is similar to that of the information processing method in the embodiment of the present disclosure, the implementation of the information processing apparatus may refer to the implementation of the method, and the repetition will not be repeated.
  • the information processing apparatus 900 includes: a first sending unit 901, configured to send the location information of the UE, where the location information of the UE is used to make the handover determined by the network according to the measurement result reported by the UE.
  • the device determines whether to perform key update according to the location information and ephemeris information of the UE.
  • the network device includes a terrestrial base station.
  • the apparatus may further include: a second sending unit, configured to send a handover request to the ground base station; a first receiving unit, configured to receive a handover request confirmation sent by the ground base station, where the handover request confirmation includes a key Update instructions.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a processor-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the related technology, or all or part of the technical solution, and the computer software product is stored in a storage medium.
  • a computer device which may be a personal computer, a server, or a network device, etc.
  • a processor processor
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .
  • an information processing apparatus includes: a processor 1000, configured to read a program in a memory 1020, and perform the following processes:
  • whether to perform key update is determined according to the location information and ephemeris information of the UE.
  • the transceiver 1010 is used for receiving and transmitting data under the control of the processor 1000 .
  • the bus architecture may include any number of interconnected buses and bridges, specifically, one or more processors represented by the processor 1000 and various circuits of the memory represented by the memory 1020 are linked together.
  • the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 1010 may be a number of elements, including a transmitter and a receiver, that provide a means for communicating with various other devices over a transmission medium.
  • the processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 may store data used by the processor 1000 when performing operations.
  • the processor 1010 can be a central processor (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (Complex Programmable Logic Device). , CPLD), the processor can also use a multi-core architecture.
  • CPU central processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • CPLD complex programmable logic device
  • the processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 may store data used by the processor 1000 when performing operations.
  • the processor 1000 is further configured to read the program and perform the following steps:
  • the UE If the UE is about to switch from the coverage area of the first satellite beam to the coverage area of the second satellite beam, it is determined to perform a key update.
  • the coverage area of the second satellite beam corresponds to multiple terrestrial cells; the processor 1000 is further configured to read the program, and perform the following steps: deriving keys for the multiple terrestrial cells within a predetermined time.
  • the processor 1000 is further configured to read the program and perform the following steps:
  • the first mapping relationship is a mapping relationship between a satellite beam and a terrestrial base station cell
  • the UE If the UE is handed over from the ground base station cell corresponding to the first satellite beam to the ground base station cell corresponding to the second satellite beam, it is determined to perform key update.
  • the processor 1000 is further configured to read the program and perform the following steps:
  • the device is applied to a ground base station; the processor 1000 is further configured to read the program, and perform the following steps:
  • key update indication information is sent to the satellite system, and the satellite system sends key update indication information to the UE.
  • the device is applied to a target ground base station; the processor 1000 is further configured to read the program, and perform the following steps:
  • the location information of the UE sent by the source ground base station is received, and the source ground base station acquires the location information of the UE from the satellite system.
  • the processor 1000 is further configured to read the program, and perform the following steps: if it is determined to perform key update, send key update instruction information to the source ground base station, and the source ground base station sends a key update instruction to the UE information.
  • the apparatus is applied to a source gateway station; the processor 1000 is further configured to read the program, and perform the following steps: receiving the location information of the UE sent by the source ground base station, and the source ground base station from the The satellite system obtains the location information of the UE.
  • the processor 1000 is further configured to read the program, and perform the following steps: send a handover request to the target ground base station, where the handover request includes key update indication information; send the key update to the source ground base station indication information, the source terrestrial base station sends key update indication information to the UE.
  • the apparatus shown in Figure 10 can also be applied to satellite systems.
  • the processor 1000 is configured to read the program, and perform the following steps: sending location information of the UE, where the location information of the UE is used to make the handover determined by the network device according to the measurement result reported by the UE.
  • the location information and ephemeris information of the UE determine whether to perform key update.
  • processor 1000 is further configured to read the program, and perform the following steps:
  • a handover request confirmation sent by the ground base station is received, where the handover request confirmation includes key update indication information.
  • the information processing apparatus includes: a processor 1100, configured to read a program in a memory 1120, and perform the following processes:
  • Receiving key update indication information wherein the key update indication information is sent by the network device when the key update is determined to be performed according to the location information and ephemeris information of the UE;
  • the key is updated according to the key update instruction.
  • the transceiver 1110 is used to receive and transmit data under the control of the processor 1100 .
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1100 and various circuits of memory represented by memory 1120 linked together.
  • the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 1110 may be a number of elements, including a transmitter and a receiver, that provide a means for communicating with various other devices over a transmission medium.
  • the user interface 1130 may also be an interface capable of externally connecting the required equipment, and the connected equipment includes but is not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1120 may store data used by the processor 1100 in performing operations.
  • the processor 1110 may be a central processor (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (Complex Programmable Logic Device). , CPLD), the processor can also use a multi-core architecture.
  • CPU central processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • CPLD complex programmable logic device
  • the processor 1100 is further configured to read the program and perform the following steps:
  • Embodiments of the present disclosure further provide a readable storage medium, where a program is stored on the readable storage medium.
  • a program is stored on the readable storage medium.
  • the readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (such as CD, DVD, BD, HVD, etc.), and semiconductor memory (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state disk (SSD)) and the like.
  • magnetic storage such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.
  • optical storage such as CD, DVD, BD, HVD, etc.
  • semiconductor memory such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state disk (SSD)

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Abstract

本公开公开了一种信息处理方法、装置、设备和处理器可读存储介质，该方法包括：获取卫星系统发送的用户设备UE的位置信息；当根据所述UE上报的测量结果确定进行切换时，根据所述UE的位置信息以及星历信息，确定是否执行密钥更新。

Description

信息处理方法、装置、设备和处理器可读存储介质
相关申请的交叉引用
本申请主张在2020年12月4日在中国提交的中国专利申请号No.202011410682.5的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信技术领域，尤其涉及一种信息处理方法、装置、设备和处理器可读存储介质。
背景技术
地面蜂窝网络中的切换是为了给UE(User Equipment，用户设备)提供连续稳定的服务。切换主要分成三个场景：基站内部切换、基站之间Xn切换以及系统间切换。在切换的过程中，为了保证AS(Access Stratum，接入层)层密钥的安全以及前后向安全的特性，需要在源基站和目标基站切换的过程中计算As层根密钥，并使用该密钥和AS层的加密算法和完整性算法对AS层的信令和数据实现安全保护。
在相关移动通信技术中，UE在切换过程中的密钥推衍与小区更新的过程同步进行，即小区切换必将导致密钥的更新。但是，在卫星网络切换的过程中，卫星的移动速度过快，如果按照地面网络的处理方式，将会导致密钥的频繁推衍，从而影响切换效率。
发明内容
本公开实施例提供一种信息处理方法、装置、设备和处理器可读存储介质，以在卫星网络的切换过程中保证UE的切换效率。
第一方面，本公开实施例提供了一种信息处理方法，包括：
获取卫星系统发送的用户设备UE的位置信息；
当根据所述UE上报的测量结果确定进行切换时，根据所述UE的位置信息以及星历信息，确定是否执行密钥更新。
其中，所述根据所述UE的位置信息以及星历信息，确定是否执行密钥更新，包括：
根据所述UE的位置信息以及星历信息，确定所述UE是否即将由第一卫星波束的覆盖区域切换到第二卫星波束的覆盖区域；
如果所述UE即将由所述第一卫星波束的覆盖区域切换到所述第二卫星波束的覆盖区域，则确定执行密钥更新。
其中，所述第二卫星波束的覆盖区域对应多个地面小区；
执行密钥更新，包括：
在预定时间内，为所述多个地面小区推衍密钥。
其中，所述根据所述UE的位置信息以及星历信息，确定是否执行密钥更新，包括：
获取第一映射关系，其中，所述第一映射关系为卫星波束和地面基站小区的映射关系；
根据所述UE的位置信息以及星历信息，确定所述UE是否即将由第一卫星波束的覆盖区域切换到第二卫星波束的覆盖区域；
如果所述UE即将由第一卫星波束的覆盖区域切换到第二卫星波束的覆盖区域，则根据所述第一映射关系确定UE是否从所述第一卫星波束对应的地面基站小区切换到所述第二卫星波束对应的地面基站小区；
如果所述UE从所述第一卫星波束对应的地面基站小区切换到所述第二卫星波束对应的地面基站小区，则确定执行密钥更新。
其中，所述获取第一映射关系包括：获取预先存储的所述第一映射关系。
其中，所述方法由地面基站执行；所述方法还包括：
如果确定执行密钥更新，向所述卫星系统发送密钥更新指示信息，以及向所述UE发送密钥更新指示信息；或者
如果确定执行密钥更新，向所述卫星系统发送密钥更新指示信息，由所述卫星系统向所述UE发送密钥更新指示信息。
其中，所述方法由目标地面基站执行；
所述获取卫星系统发送的用户设备UE的位置信息，包括：
接收源地面基站发送的所述UE的位置信息，所述源地面基站从所述卫 星系统获取所述UE的位置信息。
其中，所述方法还包括：
如果确定执行密钥更新，向所述源地面基站发送密钥更新指示信息，所述源地面基站向所述UE发送密钥更新指示信息。
其中，所述方法由源信关站执行；
所述获取卫星系统发送的用户设备UE的位置信息，包括：
接收源地面基站发送的所述UE的位置信息，所述源地面基站从所述卫星系统获取所述UE的位置信息。
其中，所述方法还包括：
向目标地面基站发送切换请求，所述切换请求中包括密钥更新指示信息；
向所述源地面基站发送密钥更新指示信息，所述源地面基站向所述UE发送密钥更新指示信息。
第二方面，本公开实施例还提供一种信息处理方法，由UE执行，包括：
接收密钥更新指示信息，其中，所述密钥更新指示信息是网络设备在根据所述UE的位置信息以及星历信息确定执行密钥更新的情况下发送的；
根据所述密钥更新指示更新密钥。
其中，所述接收密钥更新指示信息，包括：
接收地面基站通过RRC(Radio Resource Control，无线资源控制)信令发送的所述密钥更新指示信息；或者
接收卫星系统发送的密钥更新指示信息。
第三方面，本公开实施例还提供一种信息处理方法，由卫星系统执行，包括：
发送UE的位置信息，所述UE的位置信息用于使得当根据所述UE上报的测量结果确定进行切换时，由网络设备根据所述UE的位置信息以及星历信息，确定是否执行密钥更新。
其中，所述网络设备包括地面基站；所述方法还包括：
向所述地面基站发送切换请求；
接收所述地面基站发送的切换请求确认，所述切换请求确认中包括密钥更新指示信息。
第四方面，本公开实施例提供了一种信息处理装置，包括存储器，收发机，处理器：
所述存储器，用于存储计算机程序；所述收发机，用于在所述处理器的控制下收发数据；所述处理器，用于读取所述存储器中的计算机程序并执行以下操作：
获取卫星系统发送的UE的位置信息；
当根据所述UE上报的测量结果确定进行切换时，根据所述UE的位置信息以及星历信息，确定是否执行密钥更新。
其中，所述处理器，还用于：
根据所述UE的位置信息以及星历信息，确定所述UE是否即将由第一卫星波束的覆盖区域切换到第二卫星波束的覆盖区域；
如果所述UE即将由所述第一卫星波束的覆盖区域切换到所述第二卫星波束的覆盖区域，则确定执行密钥更新。
其中，所述第二卫星波束的覆盖区域对应多个地面小区；
所述处理器，还用于：在预定时间内，为所述多个地面小区推衍密钥。
其中，所述处理器，还用于：
获取第一映射关系，其中，所述第一映射关系为卫星波束和地面基站小区的映射关系；
根据所述UE的位置信息以及星历信息，确定所述UE是否即将由第一卫星波束的覆盖区域切换到第二卫星波束的覆盖区域；
如果所述UE即将由第一卫星波束的覆盖区域切换到第二卫星波束的覆盖区域，则根据所述第一映射关系确定UE是否从所述第一卫星波束对应的地面基站小区切换到所述第二卫星波束对应的地面基站小区；
如果所述UE从所述第一卫星波束对应的地面基站小区切换到所述第二卫星波束对应的地面基站小区，则确定执行密钥更新。
其中，所述处理器，还用于：获取预先存储的所述第一映射关系。
其中，所述装置应用于地面基站；所述处理器，还用于：
如果确定执行密钥更新，向所述卫星系统发送密钥更新指示信息，以及向所述UE发送密钥更新指示信息；或者
如果确定执行密钥更新，向所述卫星系统发送密钥更新指示信息，由所述卫星系统向所述UE发送密钥更新指示信息。
其中，所述装置应用于目标地面基站；所述处理器，还用于：
接收源地面基站发送的所述UE的位置信息，所述源地面基站从所述卫星系统获取所述UE的位置信息。
其中，所述处理器，还用于：
如果确定执行密钥更新，向所述源地面基站发送密钥更新指示信息，所述源地面基站向所述UE发送密钥更新指示信息。
其中，所述装置应用于源信关站；所述处理器，还用于：
接收源地面基站发送的所述UE的位置信息，所述源地面基站从所述卫星系统获取所述UE的位置信息。
其中，所述处理器，还用于：
向目标地面基站发送切换请求，所述切换请求中包括密钥更新指示信息；
向所述源地面基站发送密钥更新指示信息，所述源地面基站向所述UE发送密钥更新指示信息。
第五方面，本公开实施例提供了一种信息处理装置，包括存储器，收发机，处理器：
所述存储器，用于存储计算机程序；所述收发机，用于在所述处理器的控制下收发数据；所述处理器，用于读取所述存储器中的计算机程序并执行以下操作：
接收密钥更新指示信息，其中，所述密钥更新指示信息是网络设备在根据所述UE的位置信息以及星历信息确定执行密钥更新的情况下发送的；
根据所述密钥更新指示更新密钥。
其中，所述处理器，还用于：
接收地面基站通过RRC信令发送的所述密钥更新指示信息；或者
接收卫星系统发送的密钥更新指示信息。
第六方面，本公开实施例提供了一种信息处理装置，包括存储器，收发机，处理器：
所述存储器，用于存储计算机程序；所述收发机，用于在所述处理器的 控制下收发数据；所述处理器，用于读取所述存储器中的计算机程序并执行以下操作：
发送UE的位置信息，所述UE的位置信息用于使得当根据所述UE上报的测量结果确定进行切换时，由网络设备根据所述UE的位置信息以及星历信息，确定是否执行密钥更新。
其中，所述处理器，还用于：
向所述地面基站发送切换请求；
接收所述地面基站发送的切换请求确认，所述切换请求确认中包括密钥更新指示信息。
第七方面，本公开实施例还提供了一种信息处理装置，包括：
第一获取单元，用于获取卫星系统发送的UE的位置信息；
第一处理单元，用于当根据所述UE上报的测量结果确定进行切换时，根据所述UE的位置信息以及星历信息，确定是否执行密钥更新。
第八方面，本公开实施例还提供了一种信息处理装置，由UE执行，包括：
第一接收单元，用于接收密钥更新指示信息，其中，所述密钥更新指示信息是网络设备在根据所述UE的位置信息以及星历信息确定执行密钥更新的情况下发送的；
第一处理单元，用于根据所述密钥更新指示更新密钥。
第九方面，本公开实施例还提供了一种信息处理装置，应用于卫星系统，包括：
第一发送单元，用于发送UE的位置信息，所述UE的位置信息用于使得当根据所述UE上报的测量结果确定进行切换时，由网络设备根据所述UE的位置信息以及星历信息，确定是否执行密钥更新。
第十方面，本公开实施例还提供一种可读存储介质，所述可读存储介质上存储程序，所述程序被处理器执行时实现如上所述的信息处理方法中的步骤。
在本公开实施例中，在确定需要进行切换时，根据卫星系统发送的UE的位置信息，确定是否执行密钥更新。因此，利用本公开实施例的方案，在 卫星网络中无需频繁的进行密钥的推衍，从而可在卫星网络的切换过程中保证UE的切换效率。
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图1是本公开实施例提供的信息处理方法的流程图之一；
图2是本公开实施例提供的信息处理方法的流程图之二；
图3是本公开实施例提供的信息处理方法的流程图之三；
图4是本公开实施例提供的信息处理方法的流程图之四；
图5是本公开实施例提供的信息处理方法的流程图之五；
图6是本公开实施例提供的信息处理方法的流程图之六；
图7是本公开实施例提供的信息处理装置的结构图之一；
图8是本公开实施例提供的信息处理装置的结构图之二；
图9是本公开实施例提供的信息处理装置的结构图之三；
图10是本公开实施例提供的信息处理装置的结构图之四；
图11是本公开实施例提供的信息处理装置的结构图之五。
具体实施方式
本公开实施例中术语“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
本申请实施例中术语“多个”是指两个或两个以上，其它量词与之类似。
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，并不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本公开实施例提供了一种信息处理方法、装置、设备和处理器可读存储介质，用以在卫星网络的切换过程中保证UE的切换效率。其中，方法和装置是基于同一申请构思的，由于方法和装置解决问题的原理相似，因此装置和方法的实施可以相互参见，重复之处不再赘述。
参见图1，图1是本公开实施例提供的信息处理方法的流程图，如图1所示，包括以下步骤：
步骤101、获取卫星系统发送的UE的位置信息。
其中，本公开实施例可由地面基站、源信关站等网络设备执行。在实际应用中，卫星系统可按照预设的周期发送UE的位置信息。相应的，地面基站、源信关站等设备可接收卫星系统发送的UE的位置信息。
步骤102、当根据所述UE上报的测量结果确定进行切换时，根据所述UE的位置信息以及星历信息，确定是否执行密钥更新。
其中，通过轨道参数可以确定天体的时间、位置、速度等运行状态，从而获得所述星历信息。在本公开实施例中，可有以下几种方式确定是否执行密钥更新：
(1)根据所述UE的位置信息以及星历信息，确定所述UE是否即将由第一卫星波束的覆盖区域切换到第二卫星波束的覆盖区域。如果所述UE即将由所述第一卫星波束的覆盖区域切换到所述第二卫星波束的覆盖区域，则确定执行密钥更新；否则不执行密钥更新。
其中，“即将”的含义可以理解为UE在一定时间内会完成切换的动作。而该时间与UE的移动速度相关。移动速度越快，该时间越短。所述第一卫星波束和第二卫星波束均指的是其覆盖区域能够覆盖UE的卫星波束。
在实际应用中，所述第二卫星波束的覆盖区域对应多个地面小区。那么，在这种情况下，为了降低密钥推衍的频率，可在预定时间内，可为所述多个地面小区推衍密钥。
(2)获取第一映射关系，其中，所述第一映射关系为卫星波束和地面基站小区的映射关系。然后，根据所述UE的位置信息以及星历信息，确定所述UE是否即将由第一卫星波束的覆盖区域切换到第二卫星波束的覆盖区域。如果所述UE即将由第一卫星波束的覆盖区域切换到第二卫星波束的覆盖区域，则根据所述第一映射关系确定UE是否从所述第一卫星波束对应的地面基站小区切换到所述第二卫星波束对应的地面基站小区；如果所述UE从所述第一卫星波束对应的地面基站小区切换到所述第二卫星波束对应的地面基站小区，则确定执行密钥更新；否则不执行密钥更新。
也就是说，在此种方式中，结合卫星波束的覆盖区域的切换情况以及地面基站小区的覆盖情况判断是否执行密钥更新。如果卫星波束的覆盖区域发生切换，但是，切换前后的卫星所对应的地面基站小区没有变化，此时确定不执行密钥更新。如果卫星波束的覆盖区域发生切换，切换前后的卫星所对应的地面基站小区也发生了变化，此时确定执行密钥更新。
其中，该第一映射关系可以是预先存储的，因此，在此情况下，可获取预先存储的所述第一映射关系。
在实际应用中，该第一映射关系可由基站等网络设备根据星历信息进行配置，可以根据基站或运营商策略定期更新，或者采用预先配置的方式保存在基站等网络设备上。
在本公开实施例中，在确定需要进行切换时，根据卫星系统发送的UE的位置信息，确定是否执行密钥更新。因此，利用本公开实施例的方案，在卫星网络中无需频繁的进行密钥的推衍，从而可在卫星网络的切换过程中保证UE的切换效率。
在上述实施例的基础上，如果所述方法由地面基站执行，那么地面基站还可在确定执行密钥更新时，向所述卫星系统发送密钥更新指示信息，以及向所述UE发送密钥更新指示信息。或者，地面基站还可向所述卫星系统发送密钥更新指示信息，由所述卫星系统向所述UE发送密钥更新指示信息。
在上述实施例的基础上，在步骤101中，如果所述方法由目标地面基站执行，那么目标地面基站是接收源地面基站发送的所述UE的位置信息，所述源地面基站从所述卫星系统获取所述UE的位置信息。如果确定执行密钥更新，目标地面基站向所述源地面基站发送密钥更新指示信息，所述源地面基站向所述UE发送密钥更新指示信息。
在上述实施例的基础上，在步骤101中，如果所述方法由源信关站执行，源信关站接收源地面基站发送的所述UE的位置信息，所述源地面基站从所述卫星系统获取所述UE的位置信息。如果确定执行密钥更新，源信关站向目标地面基站发送切换请求，所述切换请求中包括密钥更新指示信息，以及，向所述源地面基站发送密钥更新指示信息，所述源地面基站向所述UE发送密钥更新指示信息。
通过上述方式，可使得UE和网络之间保持密钥更新的同步，从而进一 步提高通信效率。
参见图2，图2是本公开实施例提供的信息处理方法的流程图，由UE执行，如图2所示，包括以下步骤：
步骤201、接收密钥更新指示信息，其中，所述密钥更新指示信息是网络设备在根据所述UE的位置信息以及星历信息确定执行密钥更新的情况下发送的。
具体的，在此步骤中，UE可接收地面基站通过RRC信令发送的所述密钥更新指示信息。或者，UE还可接收卫星系统发送的密钥更新指示，而卫星系统是由基站获取的密钥更新指示。
步骤202、根据所述密钥更新指示更新密钥。
在此步骤中，更新密钥包括密钥的推衍等。网络设备和UE之间同步维护密钥与星历信息以及密钥更新次数、卫星运转周数的对应关系。
在本公开实施例中，在确定需要进行切换时，根据卫星系统发送的UE的位置信息，确定是否执行密钥更新。因此，利用本公开实施例的方案，在卫星网络中无需频繁的进行密钥的推衍，从而可在卫星网络的切换过程中保证UE的切换效率。
参见图3，图3是本公开实施例提供的信息处理方法的流程图，由卫星系统执行，如图3所示，包括以下步骤：
步骤301、发送UE的位置信息，所述UE的位置信息用于使得当根据所述UE上报的测量结果确定进行切换时，由网络设备根据所述UE的位置信息以及星历信息，确定是否执行密钥更新。
此外，所述方法还可包括：向所述地面基站发送切换请求，接收所述地面基站发送的切换请求确认，所述切换请求确认中包括密钥更新指示信息。
卫星系统还可在收到密钥更新指示信息后，向UE发送密钥更新指示。
在本公开实施例中，在确定需要进行切换时，根据卫星系统发送的UE的位置信息，确定是否执行密钥更新。因此，利用本公开实施例的方案，在卫星网络中无需频繁的进行密钥的推衍，从而可在卫星网络的切换过程中保证UE的切换效率。
参见图4，图4是本公开实施例提供的信息处理方法的流程图。在图4 所示的场景中，UE对应于同一个基站内的不同小区。每次切换的过程中，基站会根据UE的位置信息为UE所在或者即将进入的小区推衍多个后续即将使用的密钥。
步骤401、UE测量上报。
当满足测量条件，UE按照测量配置参数记录测量对象测量结果；当满足测量上报条件，UE通过MeasurementReport(测量报告)消息向网络侧上报测量结果。
步骤402、当UE进入到卫星B的区域内，卫星B会将卫星同步参数及UE的位置信息同步发送给基站(gNB)和UE。
步骤403、如果基站根据UE的测量上报决定进行切换，那么，基站确定是否执行密钥推衍。
基站根据星历信息以及卫星上报的UE的位置信息，在基站决策切换的时刻决定是否触发密钥更新。其中，是否执行密钥推衍可基于卫星波束覆盖区域是否即将发生切换作为判断基础，也可以基站小区是否即将发生切换作为判断基础。
如果基于卫星波束覆盖区域是否即将发生切换作为判断基础，那么，基站可根据星历信息以及UE的位置信息确定UE是否即将切换到另一卫星的波束覆盖区域。如果是，那么，在确定执行密钥更新。基站将根据星历信息计算下一卫星小区的密钥，并基于基站密钥KgNB进一步推衍卫星密钥Ksatellite。在实际应用中，对于某个卫星，基站将根据卫星波束小区的密钥推衍时机关系，基于星历信息和该卫星的密钥时序关系决定是否执行切换过程中的密钥推衍。
如果基于基站小区是否即将发生切换作为判断基础，那么，卫星小区将虚拟化为基站小区，最终判断还是基于基站小区的粒度执行。基站可根据星历信息以及UE的位置信息确定UE是否即将切换到另一卫星(如卫星C)的波束覆盖区域。如果是，那么，基站还将根据卫星波束和地面基站小区的映射关系判断UE切换前后所对应的卫星是否对应于同一基站小区。例如，假设UE即将由卫星B切换到卫星C，那么，基站还需判断卫星B和卫星C是否对应于同一基站小区。如果对应于同一基站小区，那么，则确定执行密钥 推衍，否则不进行密钥推衍。
步骤404、卫星B向基站发送切换请求。
步骤405、若基站决定执行密钥推衍，则向卫星B发送切换请求确认消息，携带密钥更新指示。
步骤406、基站通过RRC配置消息将密钥更新指示发送给UE。网络和UE之间同步维护密钥与星历信息以及密钥更新次数、卫星运转周数的对应关系。
在上述过程中，源小区向目标小区执行数据前传及SN状态传输操作，目的是为了使UE在目标小区接入时，目标小区知道从哪里开始为UE继续传输数据。UE接收到从网络侧发送的RRCReconfiguration(RRC配置)消息后，利用RRCReconfiguration消息里面的配置与目标小区建立连接并通过RRCReconfigurationComplete(RRC配置完成)消息告知目标小区接入成功。基站通过路径转换请求通知核心网进行数据路由变更，数据路由变更确认后，核心网向目标小区回复路径转换请求确认。目标小区收到核心网回复的路径转换请求确认后，通知源小区释放UE的上下文。
参见图5，图5是本公开实施例提供的信息处理方法的流程图。在图5所示的场景中，UE对应于同一个信关站内的不同基站。每次切换的过程中，基站会根据UE的位置信息为UE所在或者即将进入的小区推衍多个后续即将使用的密钥。
步骤501、UE测量上报。
当满足测量条件，UE按照测量配置参数记录测量对象测量结果；当满足测量上报条件，UE通过MeasurementReport(测量报告)消息向网络侧上报测量结果。
步骤502、当UE进入到卫星B的区域内，卫星B会将卫星同步参数及UE的位置信息同步发送给源基站(源gNB)和UE。
步骤503、源基站根据UE的测量上报确定执行切换，向目标基站发送切换指示，将从卫星B收到的UE的位置信息等发送给目标基站。
步骤504、目标基站决定是否执行密钥推衍。
如果目标基站根据星历信息发现UE即将离开本覆盖区域进入下一小区， 则放弃执行本小区的密钥推衍，预先执行下一小区的密钥推衍；若目标gNB根据星历信息及UE的位置判断，UE会在本小区停留足够时间，有必要为本驻留时间推衍密钥，则决策密钥推衍。其中，目标基站确定知否执行密钥推衍的方法和图4所示实施例中基站确定知否执行密钥推衍的方法相同。
步骤505、目标基站向源基站发送切换请求确认，携带密钥更新指示。
步骤506、基站通过RRC配置消息将密钥更新指示发送给UE。网络和UE之间同步维护密钥与星历信息以及密钥更新次数、卫星运转周数的对应关系。
在上述过程中，源小区还会向目标小区执行数据前传及SN状态传输操作，目的是为了使UE在目标小区接入时，目标小区知道从哪里开始为UE继续传输数据。UE接收到从网络侧发送的RRCReconfiguration消息后，利用RRCReconfiguration消息里面的配置与目标小区建立连接并通过RRCReconfigurationComplete消息告知目标小区接入成功。目标基站通过路径转换请求通知核心网进行数据路由变更，数据路由变更确认后，核心网向目标小区回复路径转换请求确认。目标小区收到核心网回复的路径转换请求确认后，通知源小区释放UE的上下文。
参见图6，图6是本公开实施例提供的信息处理方法的流程图。在图6所示的场景中，不同信关站之间不同基站。每次切换的过程中，基站会根据UE的位置信息为UE所在或者即将进入的小区推衍多个后续即将使用的密钥。
步骤601、UE测量上报。
当满足测量条件，UE按照测量配置参数记录测量对象测量结果；当满足测量上报条件，UE通过MeasurementReport(测量报告)消息向网络侧上报测量结果。
步骤602、当UE进入到卫星B的区域内，卫星B会将卫星同步参数及UE的位置信息发送给源基站(源gNB)。
步骤603、源基站根据UE的测量上报确定执行切换。
步骤604、源基站向源信关站发送切换准备指示，将从卫星B收到的UE的位置信息等发送给源信关站。
步骤605、源信关站决定是否执行密钥推衍。
如果源信关站根据星历信息发现UE即将离开本覆盖区域进入下一小区，则放弃执行本小区的密钥推衍，预先执行下一小区的密钥推衍；若目标gNB根据星历信息及UE的位置判断，UE会在本小区停留足够时间，有必要为本驻留时间推衍密钥，则决策密钥推衍。其中，源信关站确定知否执行密钥推衍的方法和图4所示实施例中基站确定知否执行密钥推衍的方法相同。
步骤606、源信关站向目标基站发送切换请求，携带密钥更新指示。
步骤607、目标基站向源信关站发送切换请求确认。
步骤608、源信关站向源基站发送切换命令，携带密钥切换指示，用于指示执行由于切换导致的密钥推衍。
步骤609、源基站向UE发送切换命令，携带密钥切换指示，用于指示执行由于切换导致的密钥推衍。网络和UE之间同步维护密钥与星历信息以及密钥更新次数、卫星运转周数的对应关系。
步骤610、UE向目标基站发送切换完成。
之后，目标基站向源信关站发送切换通知，源信关站向源基站发送UE上下文释放命令，源基站向源信关站发送UE上下文释放完成消息。
通过以上描述可以看出，利用本公开实施例的方案，无需在卫星网络切换过程中进行频繁的密钥推衍，从而可提高系统性能，保证UE的切换质量。
参见图7，图7是本公开实施例提供的信息处理装置的结构图。由于信息处理装置解决问题的原理与本公开实施例中信息处理方法相似，因此该信息处理装置的实施可以参见方法的实施，重复之处不再赘述。
如图7示，信息处理装置700包括：
第一获取单元701，用于获取卫星系统发送的UE的位置信息；第一处理单元702，用于当根据所述UE上报的测量结果确定进行切换时，根据所述UE的位置信息以及星历信息，确定是否执行密钥更新。
可选的，第一处理单元702包括：第一确定子单元，用于根据所述UE的位置信息以及星历信息，确定所述UE是否即将由第一卫星波束的覆盖区域切换到第二卫星波束的覆盖区域；第二确定子模块，用于如果所述UE即将由所述第一卫星波束的覆盖区域切换到所述第二卫星波束的覆盖区域，则确定执行密钥更新。
可选的，所述第二卫星波束的覆盖区域对应多个地面小区；所述装置还可包括：第二处理单元，用于在预定时间内，为所述多个地面小区推衍密钥。
可选的，第一处理单元702包括：
第一获取子模块，用于获取第一映射关系，其中，所述第一映射关系为卫星波束和地面基站小区的映射关系；第一确定子模块，用于根据所述UE的位置信息以及星历信息，确定所述UE是否即将由第一卫星波束的覆盖区域切换到第二卫星波束的覆盖区域；第二确定子模块，用于如果所述UE即将由第一卫星波束的覆盖区域切换到第二卫星波束的覆盖区域，则根据所述第一映射关系确定UE是否从所述第一卫星波束对应的地面基站小区切换到所述第二卫星波束对应的地面基站小区；第三确定子模块，用于如果所述UE从所述第一卫星波束对应的地面基站小区切换到所述第二卫星波束对应的地面基站小区，则确定执行密钥更新。
可选的，第一获取单元用于获取预先存储的所述第一映射关系。
可选的，所述装置应用于地面基站。所述装置还可包括：第一发送单元，用于：如果确定执行密钥更新，向所述卫星系统发送密钥更新指示信息，以及向所述UE发送密钥更新指示信息；或者如果确定执行密钥更新，向所述卫星系统发送密钥更新指示信息，由所述卫星系统向所述UE发送密钥更新指示信息。
可选的，所述装置应用于标地面基站。所述第一获取单元701，用于接收源地面基站发送的所述UE的位置信息，所述源地面基站从所述卫星系统获取所述UE的位置信息。此时，所述装置还可包括：第二发送单元，用于如果确定执行密钥更新，向所述源地面基站发送密钥更新指示信息，所述源地面基站向所述UE发送密钥更新指示信息。
可选的，所述装置应用于源信关站。所述第一获取单元701，用于接收源地面基站发送的所述UE的位置信息，所述源地面基站从所述卫星系统获取所述UE的位置信息。此时，所述装置还可包括：第三发送单元，用于向目标地面基站发送切换请求，所述切换请求中包括密钥更新指示信息；向所述源地面基站发送密钥更新指示信息，所述源地面基站向所述UE发送密钥更新指示信息。
本公开实施例提供的装置，可以执行上述方法实施例，其实现原理和技术效果类似，本实施例此处不再赘述。
参见图8，图8是本公开实施例提供的信息处理装置的结构图，应用于UE。由于信息处理装置解决问题的原理与本公开实施例中信息处理方法相似，因此该信息处理装置的实施可以参见方法的实施，重复之处不再赘述。
如图8示，信息处理装置800包括：
第一接收单元801，用于接收密钥更新指示信息，其中，所述密钥更新指示信息是网络设备在根据所述UE的位置信息以及星历信息确定执行密钥更新的情况下发送的；第一处理单元802，用于根据所述密钥更新指示更新密钥。
可选的，所述装置还可包括：第二接收单元，用于接收地面基站通过无线资源控制RRC信令发送的所述密钥更新指示信息；或者接收卫星系统发送的密钥更新指示信息。
本公开实施例提供的装置，可以执行上述方法实施例，其实现原理和技术效果类似，本实施例此处不再赘述。
参见图9，图9是本公开实施例提供的信息处理装置的结构图，应用于卫星系统。由于信息处理装置解决问题的原理与本公开实施例中信息处理方法相似，因此该信息处理装置的实施可以参见方法的实施，重复之处不再赘述。
如图9示，信息处理装置900包括：第一发送单元901，用于发送UE的位置信息，所述UE的位置信息用于使得当根据所述UE上报的测量结果确定进行切换时，由网络设备根据所述UE的位置信息以及星历信息，确定是否执行密钥更新。
可选的，所述网络设备包括地面基站。所述装置还可包括：第二发送单元，用于向所述地面基站发送切换请求；第一接收单元，用于接收所述地面基站发送的切换请求确认，所述切换请求确认中包括密钥更新指示信息。
本公开实施例提供的装置，可以执行上述方法实施例，其实现原理和技术效果类似，本实施例此处不再赘述。
需要说明的是，本申请实施例中对单元的划分是示意性的，仅仅为一种 逻辑功能划分，实际实现时可以有另外的划分方式。另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个处理器可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对相关技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
如图10所示，本公开实施例的信息处理装置，包括：处理器1000，用于读取存储器1020中的程序，执行下列过程：
获取卫星系统发送的UE的位置信息；
当根据所述UE上报的测量结果确定进行切换时，根据所述UE的位置信息以及星历信息，确定是否执行密钥更新。
收发机1010，用于在处理器1000的控制下接收和发送数据。
其中，在图10中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器1000代表的一个或多个处理器和存储器1020代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机1010可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。处理器1000负责管理总线架构和通常的处理，存储器1020可以存储处理器1000在执行操作时所使用的数据。
处理器1010可以是中央处埋器(CPU)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field－Programmable  Gate Array，FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device，CPLD)，处理器也可以采用多核架构。
处理器1000负责管理总线架构和通常的处理，存储器1020可以存储处理器1000在执行操作时所使用的数据。
处理器1000还用于读取所述程序，执行如下步骤：
根据所述UE的位置信息以及星历信息，确定所述UE是否即将由第一卫星波束的覆盖区域切换到第二卫星波束的覆盖区域；
如果所述UE即将由所述第一卫星波束的覆盖区域切换到所述第二卫星波束的覆盖区域，则确定执行密钥更新。
所述第二卫星波束的覆盖区域对应多个地面小区；处理器1000还用于读取所述程序，执行如下步骤：在预定时间内，为所述多个地面小区推衍密钥。
处理器1000还用于读取所述程序，执行如下步骤：
获取第一映射关系，其中，所述第一映射关系为卫星波束和地面基站小区的映射关系；
根据所述UE的位置信息以及星历信息，确定所述UE是否即将由第一卫星波束的覆盖区域切换到第二卫星波束的覆盖区域；
如果所述UE即将由第一卫星波束的覆盖区域切换到第二卫星波束的覆盖区域，则根据所述第一映射关系确定UE是否从所述第一卫星波束对应的地面基站小区切换到所述第二卫星波束对应的地面基站小区；
如果所述UE从所述第一卫星波束对应的地面基站小区切换到所述第二卫星波束对应的地面基站小区，则确定执行密钥更新。
处理器1000还用于读取所述程序，执行如下步骤：
获取预先存储的所述第一映射关系。
可选的，所述装置应用于地面基站；处理器1000还用于读取所述程序，执行如下步骤：
如果确定执行密钥更新，向所述卫星系统发送密钥更新指示信息，以及向所述UE发送密钥更新指示信息；或者
如果确定执行密钥更新，向所述卫星系统发送密钥更新指示信息，由所述卫星系统向所述UE发送密钥更新指示信息。
可选的，所述装置应用于目标地面基站；处理器1000还用于读取所述程序，执行如下步骤：
接收源地面基站发送的所述UE的位置信息，所述源地面基站从所述卫星系统获取所述UE的位置信息。处理器1000还用于读取所述程序，执行如下步骤：如果确定执行密钥更新，向所述源地面基站发送密钥更新指示信息，所述源地面基站向所述UE发送密钥更新指示信息。
可选的，所述装置应用于源信关站；处理器1000还用于读取所述程序，执行如下步骤：接收源地面基站发送的所述UE的位置信息，所述源地面基站从所述卫星系统获取所述UE的位置信息。可选的，处理器1000还用于读取所述程序，执行如下步骤：向目标地面基站发送切换请求，所述切换请求中包括密钥更新指示信息；向所述源地面基站发送密钥更新指示信息，所述源地面基站向所述UE发送密钥更新指示信息。
再次参见图10，图10所示的装置还可应用于卫星系统。处理器1000用于读取所述程序，执行如下步骤：发送UE的位置信息，所述UE的位置信息用于使得当根据所述UE上报的测量结果确定进行切换时，由网络设备根据所述UE的位置信息以及星历信息，确定是否执行密钥更新。
可选的，处理器1000还用于读取所述程序，执行如下步骤：
向所述地面基站发送切换请求；
接收所述地面基站发送的切换请求确认，所述切换请求确认中包括密钥更新指示信息。
本公开实施例提供的装置，可以执行上述方法实施例，其实现原理和技术效果类似，本实施例此处不再赘述。
如图11所示，本公开实施例的信息处理装置，可应用于UE，包括：处理器1100，用于读取存储器1120中的程序，执行下列过程：
接收密钥更新指示信息，其中，所述密钥更新指示信息是网络设备在根据所述UE的位置信息以及星历信息确定执行密钥更新的情况下发送的；
根据所述密钥更新指示更新密钥。
收发机1110，用于在处理器1100的控制下接收和发送数据。
其中，在图11中，总线架构可以包括任意数量的互联的总线和桥，具体 由处理器1100代表的一个或多个处理器和存储器1120代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机1110可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备，用户接口1130还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器1100负责管理总线架构和通常的处理，存储器1120可以存储处理器1100在执行操作时所使用的数据。
处理器1110可以是中央处埋器(CPU)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field－Programmable Gate Array，FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device，CPLD)，处理器也可以采用多核架构。
处理器1100还用于读取所述程序，执行如下步骤：
接收地面基站通过RRC信令发送的所述密钥更新指示信息；或者
接收卫星系统发送的密钥更新指示信息。
本公开实施例提供的装置，可以执行上述方法实施例，其实现原理和技术效果类似，本实施例此处不再赘述。
本公开实施例还提供一种可读存储介质，可读存储介质上存储有程序，该程序被处理器执行时实现上述信息处理方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。其中，所述的可读存储介质，可以是处理器能够存取的任何可用介质或数据存储设备，包括但不限于磁性存储器(例如软盘、硬盘、磁带、磁光盘(MO)等)、光学存储器(例如CD、DVD、BD、HVD等)、以及半导体存储器(例如ROM、EPROM、EEPROM、非易失性存储器(NAND FLASH)、固态硬盘(SSD))等。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况 下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。根据这样的理解，本公开的技术方案本质上或者说对相关技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁盘、光盘)中，包括若干指令用以使得一台UE(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本公开各个实施例所述的方法。
上面结合附图对本公开的实施例进行了描述，但是本公开并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本公开的启示下，在不脱离本公开宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本公开的保护之内。

Claims (32)

  1. 一种信息处理方法，包括：
    获取卫星系统发送的用户设备UE的位置信息；
    当根据所述UE上报的测量结果确定进行切换时，根据所述UE的位置信息以及星历信息，确定是否执行密钥更新。
  2. 根据权利要求1所述的方法，其中，所述根据所述UE的位置信息以及星历信息，确定是否执行密钥更新，包括：
    根据所述UE的位置信息以及星历信息，确定所述UE是否即将由第一卫星波束的覆盖区域切换到第二卫星波束的覆盖区域；
    如果所述UE即将由所述第一卫星波束的覆盖区域切换到所述第二卫星波束的覆盖区域，则确定执行密钥更新。
  3. 根据权利要求2所述的方法，其中，所述第二卫星波束的覆盖区域对应多个地面小区；
    执行密钥更新，包括：
    在预定时间内，为所述多个地面小区推衍密钥。
  4. 根据权利要求1所述的方法，其中，所述根据所述UE的位置信息以及星历信息，确定是否执行密钥更新，包括：
    获取第一映射关系，其中，所述第一映射关系为卫星波束和地面基站小区的映射关系；
    根据所述UE的位置信息以及星历信息，确定所述UE是否即将由第一卫星波束的覆盖区域切换到第二卫星波束的覆盖区域；
    如果所述UE即将由第一卫星波束的覆盖区域切换到第二卫星波束的覆盖区域，则根据所述第一映射关系确定UE是否从所述第一卫星波束对应的地面基站小区切换到所述第二卫星波束对应的地面基站小区；
    如果所述UE从所述第一卫星波束对应的地面基站小区切换到所述第二卫星波束对应的地面基站小区，则确定执行密钥更新。
  5. 根据权利要求4所述的方法，其中，所述获取第一映射关系包括：获取预先存储的所述第一映射关系。
  6. 根据权利要求1所述的方法，其中，所述方法由地面基站执行；所述方法还包括：
    如果确定执行密钥更新，向所述卫星系统发送密钥更新指示信息，以及向所述UE发送密钥更新指示信息；或者
    如果确定执行密钥更新，向所述卫星系统发送密钥更新指示信息，由所述卫星系统向所述UE发送密钥更新指示信息。
  7. 根据权利要求1所述的方法，其中，所述方法由目标地面基站执行；
    所述获取卫星系统发送的用户设备UE的位置信息，包括：
    接收源地面基站发送的所述UE的位置信息，所述源地面基站从所述卫星系统获取所述UE的位置信息。
  8. 根据权利要求7所述的方法，还包括：
    如果确定执行密钥更新，向所述源地面基站发送密钥更新指示信息，所述源地面基站向所述UE发送密钥更新指示信息。
  9. 根据权利要求1所述的方法，其中，所述方法由源信关站执行；
    所述获取卫星系统发送的用户设备UE的位置信息，包括：
    接收源地面基站发送的所述UE的位置信息，所述源地面基站从所述卫星系统获取所述UE的位置信息。
  10. 根据权利要求9所述的方法，还包括：
    向目标地面基站发送切换请求，所述切换请求中包括密钥更新指示信息；
    向所述源地面基站发送密钥更新指示信息，所述源地面基站向所述UE发送密钥更新指示信息。
  11. 一种信息处理方法，由UE执行，包括：
    接收密钥更新指示信息，其中，所述密钥更新指示信息是网络设备在根据所述UE的位置信息以及星历信息确定执行密钥更新的情况下发送的；
    根据所述密钥更新指示更新密钥。
  12. 根据权利要求11所述的方法，其中，所述接收密钥更新指示信息，包括：
    接收地面基站通过无线资源控制RRC信令发送的所述密钥更新指示信息；或者
    接收卫星系统发送的密钥更新指示信息。
  13. 一种信息处理方法，由卫星系统执行，包括：
    发送UE的位置信息，所述UE的位置信息用于使得当根据所述UE上报的测量结果确定进行切换时，由网络设备根据所述UE的位置信息以及星历信息，确定是否执行密钥更新。
  14. 根据权利要求13所述的方法，其中，所述网络设备包括地面基站；所述方法还包括：
    向所述地面基站发送切换请求；
    接收所述地面基站发送的切换请求确认，所述切换请求确认中包括密钥更新指示信息。
  15. 一种信息处理装置，包括存储器，收发机，处理器：
    所述存储器，用于存储计算机程序；所述收发机，用于在所述处理器的控制下收发数据；所述处理器，用于读取所述存储器中的计算机程序并执行以下操作：
    获取卫星系统发送的UE的位置信息；
    当根据所述UE上报的测量结果确定进行切换时，根据所述UE的位置信息以及星历信息，确定是否执行密钥更新。
  16. 根据权利要求15所述的装置，其中，所述处理器，还用于：
    根据所述UE的位置信息以及星历信息，确定所述UE是否即将由第一卫星波束的覆盖区域切换到第二卫星波束的覆盖区域；
    如果所述UE即将由所述第一卫星波束的覆盖区域切换到所述第二卫星波束的覆盖区域，则确定执行密钥更新。
  17. 根据权利要求16所述的装置，其中，所述第二卫星波束的覆盖区域对应多个地面小区；
    所述处理器，还用于：在预定时间内，为所述多个地面小区推衍密钥。
  18. 根据权利要求15所述的装置，其中，所述处理器，还用于：
    获取第一映射关系，其中，所述第一映射关系为卫星波束和地面基站小区的映射关系；
    根据所述UE的位置信息以及星历信息，确定所述UE是否即将由第一卫 星波束的覆盖区域切换到第二卫星波束的覆盖区域；
    如果所述UE即将由第一卫星波束的覆盖区域切换到第二卫星波束的覆盖区域，则根据所述第一映射关系确定UE是否从所述第一卫星波束对应的地面基站小区切换到所述第二卫星波束对应的地面基站小区；
    如果所述UE从所述第一卫星波束对应的地面基站小区切换到所述第二卫星波束对应的地面基站小区，则确定执行密钥更新。
  19. 根据权利要求18所述的装置，其中，所述处理器，还用于：获取预先存储的所述第一映射关系。
  20. 根据权利要求15所述的装置，其中，所述装置应用于地面基站；所述处理器，还用于：
    如果确定执行密钥更新，向所述卫星系统发送密钥更新指示信息，以及向所述UE发送密钥更新指示信息；或者
    如果确定执行密钥更新，向所述卫星系统发送密钥更新指示信息，由所述卫星系统向所述UE发送密钥更新指示信息。
  21. 根据权利要求15所述的装置，其中，所述装置应用于目标地面基站；所述处理器，还用于：
    接收源地面基站发送的所述UE的位置信息，所述源地面基站从所述卫星系统获取所述UE的位置信息。
  22. 根据权利要求21所述的装置，其中，所述处理器，还用于：
    如果确定执行密钥更新，向所述源地面基站发送密钥更新指示信息，所述源地面基站向所述UE发送密钥更新指示信息。
  23. 根据权利要求15所述的装置，其中，所述装置应用于源信关站；所述处理器，还用于：
    接收源地面基站发送的所述UE的位置信息，所述源地面基站从所述卫星系统获取所述UE的位置信息。
  24. 根据权利要求23所述的装置，其中，所述处理器，还用于：
    向目标地面基站发送切换请求，所述切换请求中包括密钥更新指示信息；
    向所述源地面基站发送密钥更新指示信息，所述源地面基站向所述UE发送密钥更新指示信息。
  25. 一种信息处理装置，包括存储器，收发机，处理器：
    所述存储器，用于存储计算机程序；所述收发机，用于在所述处理器的控制下收发数据；所述处理器，用于读取所述存储器中的计算机程序并执行以下操作：
    接收密钥更新指示信息，其中，所述密钥更新指示信息是网络设备在根据所述UE的位置信息以及星历信息确定执行密钥更新的情况下发送的；
    根据所述密钥更新指示更新密钥。
  26. 根据权利要求25所述的装置，其中，所述处理器，还用于：
    接收地面基站通过RRC信令发送的所述密钥更新指示信息；或者
    接收卫星系统发送的密钥更新指示信息。
  27. 一种信息处理装置，包括存储器，收发机，处理器：
    所述存储器，用于存储计算机程序；所述收发机，用于在所述处理器的控制下收发数据；所述处理器，用于读取所述存储器中的计算机程序并执行以下操作：
    发送UE的位置信息，所述UE的位置信息用于使得当根据所述UE上报的测量结果确定进行切换时，由网络设备根据所述UE的位置信息以及星历信息，确定是否执行密钥更新。
  28. 根据权利要求27所述的装置，其中，所述处理器，还用于：
    向所述地面基站发送切换请求；
    接收所述地面基站发送的切换请求确认，所述切换请求确认中包括密钥更新指示信息。
  29. 一种信息处理装置，包括：
    第一获取单元，用于获取卫星系统发送的UE的位置信息；
    第一处理单元，用于当根据所述UE上报的测量结果确定进行切换时，根据所述UE的位置信息以及星历信息，确定是否执行密钥更新。
  30. 一种信息处理装置，应用于UE，包括：
    第一接收单元，用于接收密钥更新指示信息，其中，所述密钥更新指示信息是网络设备在根据所述UE的位置信息以及星历信息确定执行密钥更新的情况下发送的；
    第一处理单元，用于根据所述密钥更新指示更新密钥。
  31. 一种信息处理装置，应用于卫星系统，包括：
    第一发送单元，用于发送UE的位置信息，所述UE的位置信息用于使得当根据所述UE上报的测量结果确定进行切换时，由网络设备根据所述UE的位置信息以及星历信息，确定是否执行密钥更新。
  32. 一种处理器可读存储介质，其中，所述处理器可读存储介质存储有计算机程序，所述计算机程序用于使所述处理器执行权利要求1至14任一项所述的方法。
PCT/CN2021/130606 2020-12-04 2021-11-15 信息处理方法、装置、设备和处理器可读存储介质 WO2022116803A1 (zh)

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