Disclosure of Invention
The embodiment of the invention provides an information processing method, an information processing device, information processing equipment and a processor readable storage medium, so as to ensure the switching efficiency of UE in the switching process of a satellite network.
In a first aspect, an embodiment of the present invention provides an information processing method, including:
acquiring position information of User Equipment (UE) sent by a satellite system;
and when the switching is determined according to the measurement result reported by the UE, determining whether to execute key updating or not according to the position information and the ephemeris information of the UE.
Wherein, the determining whether to execute the key update according to the location information and the ephemeris information of the UE includes:
determining whether the UE is about to be switched from the coverage area of a first satellite beam to the coverage area of a second satellite beam according to the position information and the ephemeris information of 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, then a determination is made to perform a key update.
Wherein the coverage area of the second satellite beam corresponds to a plurality of ground cells;
performing a key update, comprising:
and pushing the derivative keys for the ground cells in a preset time.
Wherein, the determining whether to execute the key update according to the location information and the ephemeris information of the UE includes:
acquiring a first mapping relation, wherein the first mapping relation is a mapping relation between satellite beams and a ground base station cell;
determining whether the UE is about to be switched from the coverage area of a first satellite beam to the coverage area of a second satellite beam according to the position information and the ephemeris information of the UE;
if 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, determining whether 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 according to the first mapping relation;
and 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, determining to execute key updating.
The obtaining the first mapping relation includes: and acquiring the first mapping relation stored in advance.
Wherein the method is performed by a ground base station; the method further comprises the steps of:
if it is determined to perform the key update, transmitting key update indication information to the satellite system, and transmitting key update indication information to the UE; or alternatively
And if the key updating is determined to be executed, key updating indication information is sent to the satellite system, and the satellite system sends the key updating indication information to the UE.
Wherein the method is performed by a target ground base station;
the obtaining the position information of the user equipment UE sent by the satellite system includes:
and receiving the position information of the UE sent by a source ground base station, wherein the source ground base station acquires the position information of the UE from the satellite system.
Wherein the method further comprises:
and if the key updating is determined to be executed, the key updating indication information is sent to the source ground base station, and the source ground base station sends the key updating indication information to the UE.
Wherein the method is performed by a source gateway station;
the obtaining the position information of the user equipment UE sent by the satellite system includes:
And receiving the position information of the UE sent by a source ground base station, wherein the source ground base station acquires the position information of the UE from the satellite system.
Wherein the method further comprises:
transmitting a switching request to a target ground base station, wherein the switching request comprises key updating indication information;
and sending key updating indication information to the source ground base station, and sending the key updating indication information to the UE by the source ground base station.
In a second aspect, an embodiment of the present invention further provides an information processing method, performed by a UE, including:
receiving key update indication information, wherein the key update indication information is sent by network equipment under the condition that the network equipment determines to execute key update according to the position information and ephemeris information of the UE;
and updating the key according to the key updating indication.
Wherein the receiving key update indication information includes:
receiving the key update indication information sent by a ground base station through RRC (Radio Resource Control ) signaling; or alternatively
And receiving key update indication information sent by a satellite system.
In a third aspect, an embodiment of the present invention further provides an information processing method, which is executed by a satellite system, including:
And sending the position information of the UE, wherein the position information of the UE is used for determining whether to execute key updating or not by the network equipment according to the position information and ephemeris information of the UE when the switching is determined according to the measurement result reported by the UE.
The network equipment comprises a ground base station; the method further comprises the steps of:
sending a switching request to the ground base station;
and receiving a switching request confirmation sent by the ground base station, wherein the switching request confirmation comprises key updating indication information.
In a fourth aspect, an embodiment of the present invention provides an information processing apparatus, including a memory, a transceiver, and a processor:
the memory is used for storing a computer program; the transceiver is used for receiving and transmitting data under the control of the processor; the processor is configured to read the computer program in the memory and perform the following operations:
acquiring the position information of UE sent by a satellite system;
and when the switching is determined according to the measurement result reported by the UE, determining whether to execute key updating or not according to the position information and the ephemeris information of the UE.
Wherein the processor is further configured to:
determining whether the UE is about to be switched from the coverage area of a first satellite beam to the coverage area of a second satellite beam according to the position information and the ephemeris information of 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, then a determination is made to perform a key update.
Wherein the coverage area of the second satellite beam corresponds to a plurality of ground cells;
the processor is further configured to: and pushing the derivative keys for the ground cells in a preset time.
Wherein the processor is further configured to:
acquiring a first mapping relation, wherein the first mapping relation is a mapping relation between satellite beams and a ground base station cell;
determining whether the UE is about to be switched from the coverage area of a first satellite beam to the coverage area of a second satellite beam according to the position information and the ephemeris information of the UE;
if 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, determining whether 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 according to the first mapping relation;
and 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, determining to execute key updating.
Wherein the processor is further configured to: and acquiring the first mapping relation stored in advance.
Wherein the device is applied to a ground base station; the processor is further configured to:
if it is determined to perform the key update, transmitting key update indication information to the satellite system, and transmitting key update indication information to the UE; or alternatively
And if the key updating is determined to be executed, key updating indication information is sent to the satellite system, and the satellite system sends the key updating indication information to the UE.
Wherein the device is applied to a target ground base station; the processor is further configured to:
and receiving the position information of the UE sent by a source ground base station, wherein the source ground base station acquires the position information of the UE from the satellite system.
Wherein the processor is further configured to:
and if the key updating is determined to be executed, the key updating indication information is sent to the source ground base station, and the source ground base station sends the key updating indication information to the UE.
Wherein the apparatus is applied to a source gateway station; the processor is further configured to:
and receiving the position information of the UE sent by a source ground base station, wherein the source ground base station acquires the position information of the UE from the satellite system.
Wherein the processor is further configured to:
transmitting a switching request to a target ground base station, wherein the switching request comprises key updating indication information;
and sending key updating indication information to the source ground base station, and sending the key updating indication information to the UE by the source ground base station.
In a fifth aspect, an embodiment of the present invention provides an information processing apparatus, including a memory, a transceiver, and a processor:
the memory is used for storing a computer program; the transceiver is used for receiving and transmitting data under the control of the processor; the processor is configured 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 network equipment under the condition that the network equipment determines to execute key update according to the position information and ephemeris information of the UE;
and updating the key according to the key updating indication.
Wherein the processor is further configured to:
receiving the key update indication information sent by the ground base station through RRC signaling; or alternatively
And receiving key update indication information sent by a satellite system.
In a sixth aspect, an embodiment of the present invention provides an information processing apparatus, including a memory, a transceiver, and a processor:
The memory is used for storing a computer program; the transceiver is used for receiving and transmitting data under the control of the processor; the processor is configured to read the computer program in the memory and perform the following operations:
and sending the position information of the UE, wherein the position information of the UE is used for determining whether to execute key updating or not by the network equipment according to the position information and ephemeris information of the UE when the switching is determined according to the measurement result reported by the UE.
Wherein the processor is further configured to:
sending a switching request to the ground base station;
and receiving a switching request confirmation sent by the ground base station, wherein the switching request confirmation comprises key updating indication information.
In a seventh aspect, an embodiment of the present invention further provides an information processing apparatus, including:
the first acquisition unit is used for acquiring the position information of the UE sent by the satellite system;
and the first processing unit is used for determining whether to execute key updating or not according to the position information and the ephemeris information of the UE when the switching is determined according to the measurement result reported by the UE.
In an eighth aspect, an embodiment of the present invention further provides an information processing apparatus, which is executed by a UE, including:
A first receiving unit configured to receive key update instruction information, where the key update instruction information is sent by a network device when determining to perform a key update according to location information and ephemeris information of the UE;
and the first processing unit is used for updating the key according to the key updating indication.
In a ninth aspect, an embodiment of the present invention further provides an information processing apparatus, which is applied to a satellite system, including:
and the first sending unit is used for sending the position information of the UE, wherein the position information of the UE is used for enabling the network equipment to determine whether to execute key updating according to the position information and ephemeris information of the UE when the switching is determined according to the measurement result reported by the UE.
In a tenth aspect, an embodiment of the present invention also provides a readable storage medium having stored thereon a program which, when executed by a processor, implements the steps in the information processing method as described above.
In the embodiment of the invention, when the switching is determined to be needed, whether the key update is executed is determined according to the position information of the UE sent by the satellite system. Therefore, by utilizing the scheme of the embodiment of the invention, the key is not required to be frequently pushed and derived in the satellite network, so that the switching efficiency of the UE can be ensured in the switching process of the satellite network.
Detailed Description
In the embodiment of the invention, the term "and/or" describes the association relation of the association objects, which means that three relations can exist, for example, a and/or B can be expressed as follows: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
The term "plurality" in embodiments of the present application means two or more, and other adjectives are similar.
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The embodiment of the application provides an information processing method, an information processing device, information processing equipment and a processor readable storage medium, which are used for ensuring the switching efficiency of UE in the switching process of a satellite network. The method and the device are based on the same application, and because the principles of solving the problems by the method and the device are similar, the implementation of the device and the method can be referred to each other, and the repetition is not repeated.
Referring to fig. 1, fig. 1 is a flowchart of an information processing method provided in an embodiment of the present application, as shown in fig. 1, including the following steps:
and step 101, acquiring the position information of the UE transmitted by the satellite system.
The embodiment of the application can be executed by network equipment such as a ground base station, a source gateway station and the like. In practical application, the satellite system may send the location information of the UE according to a preset period. Correspondingly, the ground base station, the source gateway station and other devices can receive the position information of the UE sent by the satellite system.
And 102, when the switching is determined according to the measurement result reported by the UE, determining whether to execute key updating according to the position information and the ephemeris information of the UE.
The time, position, speed and other running states of the celestial body can be determined through the orbit parameters, so that the ephemeris information is obtained. In an embodiment of the present invention, there may be several ways to determine whether to perform a key update:
(1) And determining 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 according to the position information and the ephemeris information of the UE. Determining to perform a 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; otherwise, no key update is performed.
The meaning of "about to" is understood as the action that the UE will complete the handover within a certain time. And the time is related to the moving speed of the UE. The faster the movement speed, the shorter the time. The first satellite beam and the second satellite beam each refer to a satellite beam whose coverage area can cover the UE.
In practical applications, the coverage area of the second satellite beam corresponds to a plurality of ground cells. In this case, then, in order to reduce the frequency of key derivation, keys may be derived for the plurality of terrestrial cells for a predetermined time.
(2) And acquiring a first mapping relation, wherein the first mapping relation is the mapping relation between the satellite wave beam and the ground base station cell. Then, it is determined 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 based on the location information and ephemeris information of the UE. If 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, determining whether 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 according to the first mapping relation; determining to perform a key update if the UE switches from a ground base station cell corresponding to the first satellite beam to a ground base station cell corresponding to the second satellite beam; otherwise, no key update is performed.
That is, in this manner, it is determined whether or not to perform the key update in combination with the handover situation of the coverage area of the satellite beam and the coverage situation of the terrestrial base station cell. If the coverage area of the satellite beam is switched, however, the ground base station cells corresponding to the satellites before and after the switching are unchanged, and at the moment, it is determined that the key updating is not executed. If the coverage area of the satellite beam is switched, the ground base station cells corresponding to the satellites before and after the switching are changed, and at the moment, the key updating is determined to be executed.
Wherein the first mapping relation may be pre-stored, and in this case, the pre-stored first mapping relation may be acquired.
In practical application, the first mapping relationship may be configured by network devices such as a base station according to ephemeris information, and may be updated periodically according to a base station or an operator policy, or may be stored in a preconfigured manner on the network devices such as the base station.
In the embodiment of the invention, when the switching is determined to be needed, whether the key update is executed is determined according to the position information of the UE sent by the satellite system. Therefore, by utilizing the scheme of the embodiment of the invention, the key is not required to be frequently pushed and derived in the satellite network, so that the switching efficiency of the UE can be ensured in the switching process of the satellite network.
On the basis of the above embodiment, if the method is performed by a terrestrial base station, the terrestrial base station may further transmit key update indication information to the satellite system and transmit key update indication information to the UE when it is determined to perform key update. Alternatively, the ground base station may also send key update indication information to the satellite system, which sends key update indication information to the UE.
On the basis of the above embodiment, in step 101, if the method is performed by a target terrestrial base station, the target terrestrial base station is configured to receive the location information of the UE transmitted by a source terrestrial base station, and the source terrestrial base station obtains the location information of the UE from the satellite system. And if the key updating is determined to be executed, the target ground base station sends key updating indication information to the source ground base station, and the source ground base station sends key updating indication information to the UE.
On the basis of the above embodiment, in step 101, if the method is performed by a source gateway station, the source gateway station receives location information of the UE transmitted by a source terrestrial base station, and the source terrestrial base station acquires the location information of the UE from the satellite system. If the key update is determined to be executed, the source gateway station sends a switching request to the target ground base station, wherein the switching request comprises key update indication information, the key update indication information is sent to the source ground base station, and the source ground base station sends the key update indication information to the UE.
By the method, the synchronization of the key update between the UE and the network can be kept, so that the communication efficiency is further improved.
Referring to fig. 2, fig. 2 is a flowchart of an information processing method provided by an embodiment of the present invention, which is executed by a UE, as shown in fig. 2, and includes the following steps:
step 201, receiving key update indication information, wherein the key update indication information is sent by a network device when determining to execute key update according to the location information and ephemeris information of the UE.
Specifically, in this step, the UE may receive the key update indication information sent by the ground base station through RRC signaling. Alternatively, the UE may also receive a key update indication sent by the satellite system, which is a key update indication obtained by the base station.
Step 202, updating the key according to the key updating indication.
In this step, updating the key includes deriving the key, and the like. And the network equipment and the UE synchronously maintain the corresponding relation between the key and the ephemeris information, the number of times of updating the key and the number of satellite operation weeks.
In the embodiment of the invention, when the switching is determined to be needed, whether the key update is executed is determined according to the position information of the UE sent by the satellite system. Therefore, by utilizing the scheme of the embodiment of the invention, the key is not required to be frequently pushed and derived in the satellite network, so that the switching efficiency of the UE can be ensured in the switching process of the satellite network.
Referring to fig. 3, fig. 3 is a flowchart of an information processing method provided by an embodiment of the present invention, which is executed by a satellite system, as shown in fig. 3, and includes the following steps:
step 301, transmitting location information of a UE, where the location information of the UE is used to determine, by a network device, whether to execute key updating according to the location information and ephemeris information of the UE when handover is determined according to a measurement result reported by the UE.
Furthermore, the method may further comprise: and sending a switching request to the ground base station, and receiving switching request confirmation sent by the ground base station, wherein the switching request confirmation comprises key updating indication information.
The satellite system may also send a key update indication to the UE after receiving the key update indication information.
In the embodiment of the invention, when the switching is determined to be needed, whether the key update is executed is determined according to the position information of the UE sent by the satellite system. Therefore, by utilizing the scheme of the embodiment of the invention, the key is not required to be frequently pushed and derived in the satellite network, so that the switching efficiency of the UE can be ensured in the switching process of the satellite network.
Referring to fig. 4, fig. 4 is a flowchart of an information processing method provided in an embodiment of the present invention. In the scenario shown in fig. 4, the UEs correspond to different cells within the same base station. In each handover process, the base station may derive a plurality of keys to be used for the cell in which the UE is located or is to enter according to the location information of the UE.
Step 401, UE measurement reporting.
When the measurement condition is met, the UE records a measurement result of the measurement object according to the measurement configuration parameters; when the measurement report condition is satisfied, the UE reports the measurement result to the network side through a MeasurementReport message.
In step 402, when the UE enters the area of the satellite B, the satellite B synchronously transmits the satellite synchronization parameters and the location information of the UE to the base station (gNB) and the UE.
In step 403, if the base station decides to switch according to the measurement report of the UE, the base station determines whether to perform key derivation.
And the base station decides whether to trigger key update at the moment of base station decision switching according to the ephemeris information and the position information of the UE reported by the satellite. Whether to perform key derivation can be based on whether handover is about to occur in the satellite beam coverage area, or whether handover is about to occur in the base station cell.
If a decision is based on whether a satellite beam coverage area is about to switch, the base station may determine whether the UE is about to switch to the beam coverage area of another satellite based on ephemeris information and the UE's location information. If so, then a key update is performed at the determination. The base station will calculate the key of the next satellite cell from the ephemeris information and further derive the satellite key kstatellite based on the base station key KgNB. In practical application, for a certain satellite, the base station decides whether to execute key derivation in the handover process based on ephemeris information and the key timing relationship of the satellite according to the key derivation timing relationship of the satellite beam cell.
If a base station cell is about to be switched on or not is taken as a basis for judgment, the satellite cell is virtualized into the base station cell, and the final judgment is still carried out based on the granularity of the base station cell. The base station may determine whether the UE is about to switch to the beam coverage area of another satellite (e.g., satellite C) based on the ephemeris information and the location information of the UE. If so, the base station also judges whether the satellite corresponding to the UE before and after switching corresponds to the same base station cell according to the mapping relation between the satellite wave beam and the ground base station cell. For example, assuming that the UE is about to switch 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 that a key derivation is performed, otherwise no key derivation is performed.
Step 404, the satellite B sends a handover request to the base station.
Step 405, if the base station determines to perform key derivation, it sends a handover request confirm message to the satellite B, carrying a key update instruction.
Step 406, the base station sends the key update indication to the UE through the RRC configuration message. And the network and the UE synchronously maintain the corresponding relation between the key and the ephemeris information, the number of times of updating the key and the number of satellite operation weeks.
In the above process, the source cell performs data forwarding and SN status transmission operations to the target cell, so that the target cell knows where to start to continue transmitting data for the UE when the UE accesses the target cell. After receiving the RRCRECONfigure information sent from the network side, the UE establishes connection with the target cell by using the configuration in the RRCRECONfigure information and informs the target cell that the access is successful through the RRCRECONfigure complete information. The base station informs the core network of carrying out data route change through the path conversion request, and after the data route change is confirmed, the core network replies the path conversion request confirmation to the target cell. After receiving the confirmation of the path conversion request replied by the core network, the target cell informs the source cell of releasing the context of the UE.
Referring to fig. 5, fig. 5 is a flowchart of an information processing method provided in an embodiment of the present invention. In the scenario shown in fig. 5, the UEs correspond to different base stations within the same gateway station. In each handover process, the base station may derive a plurality of keys to be used for the cell in which the UE is located or is to enter according to the location information of the UE.
Step 501, UE measurement reporting.
When the measurement condition is met, the UE records a measurement result of the measurement object according to the measurement configuration parameters; when the measurement report condition is satisfied, the UE reports the measurement result to the network side through a MeasurementReport message.
In step 502, when the UE enters the area of the satellite B, the satellite B synchronously transmits the satellite synchronization parameter and the location information of the UE to the source base station (source gNB) and the UE.
In 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 location information of the UE received from the satellite B, etc. to the target base station.
Step 504, the target base station decides whether to perform key derivation.
If the target base station finds that the UE is about to leave the coverage area to enter the next cell according to the ephemeris information, the target base station gives up to execute the key derivation of the cell and executes the key derivation of the next cell in advance; if the target gNB judges according to the ephemeris information and the position of the UE, the UE can stay in the cell for enough time, and the key is needed to be pushed for the residence time, the key is determined to be pushed. The method for determining whether to perform the key derivation by the target base station is the same as the method for determining whether to perform the key derivation by the base station in the embodiment shown in fig. 4.
Step 505, the target base station sends a handover request acknowledgement to the source base station, carrying a key update indication.
Step 506, the base station sends the key update indication to the UE through the RRC configuration message. And the network and the UE synchronously maintain the corresponding relation between the key and the ephemeris information, the number of times of updating the key and the number of satellite operation weeks.
In the above process, the source cell also performs data forwarding and SN status transmission operations to the target cell, so that the target cell knows where to start transmitting data for the UE when the UE accesses the target cell. After receiving the RRCRECONfigure information sent from the network side, the UE establishes connection with the target cell by using the configuration in the RRCRECONfigure information and informs the target cell that the access is successful through the RRCRECONfigure information. The target base station informs the core network of carrying out data route change through the path conversion request, and after the data route change is confirmed, the core network replies the path conversion request confirmation to the target cell. After receiving the confirmation of the path conversion request replied by the core network, the target cell informs the source cell of releasing the context of the UE.
Referring to fig. 6, fig. 6 is a flowchart of an information processing method provided in an embodiment of the present invention. In the scenario illustrated in fig. 6, there are different base stations between different gateway stations. In each handover process, the base station may derive a plurality of keys to be used for the cell in which the UE is located or is to enter according to the location information of the UE.
Step 601, UE measurement reporting.
When the measurement condition is met, the UE records a measurement result of the measurement object according to the measurement configuration parameters; when the measurement report condition is satisfied, the UE reports the measurement result to the network side through a MeasurementReport message.
In step 602, when the UE enters the area of the satellite B, the satellite B transmits the satellite synchronization parameters and the location information of the UE to the source base station (source gNB).
Step 603, the source base station determines to execute handover according to measurement report of the UE.
Step 604, the source base station transmits a handover preparation instruction to the source gateway station, and transmits the UE position information received from the satellite B and the like to the source gateway station.
Step 605, the source gateway station determines whether to perform key derivation.
If 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, the source gateway station gives up to execute the key derivation of the cell and execute the key derivation of the next cell in advance; if the target gNB judges according to the ephemeris information and the position of the UE, the UE can stay in the cell for enough time, and the key is needed to be pushed for the residence time, the key is determined to be pushed. The method of determining whether to perform the key derivation by the source gateway station is the same as the method of determining whether to perform the key derivation by the base station 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 indication.
Step 607, the target base station sends a handover request acknowledgement to the source gateway station.
In step 608, the source gateway station sends a handover command to the source base station, carrying a key handover indication for indicating to perform a key derivation due to handover.
Step 609, the source base station sends a handover command to the UE, carrying a key handover indication, for indicating to perform key derivation due to handover. And the network and the UE synchronously maintain the corresponding relation between the key and the ephemeris information, the number of times of updating the key and the number of satellite operation weeks.
Step 610, the UE sends the handover complete to the target base station.
And then, the target base station sends a switching notice to the source gateway station, the source gateway station sends a UE context release command to the source base station, and the source base station sends a UE context release completion message to the source gateway station.
As can be seen from the above description, by using the scheme of the embodiment of the present invention, frequent key derivation is not required in the satellite network switching process, so that the system performance can be improved, and the switching quality of the UE can be ensured.
Referring to fig. 7, fig. 7 is a block diagram of an information processing apparatus provided in an embodiment of the present invention. Since the principle of solving the problem of the information processing apparatus is similar to that of the information processing method in the embodiment of the present invention, the implementation of the information processing apparatus can refer to the implementation of the method, and the repetition is omitted.
As shown in fig. 7, the information processing apparatus 700 includes:
a first obtaining unit 701, configured to obtain location information of a UE sent by a satellite system; the first processing unit 702 is 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.
Optionally, the first processing unit 702 includes: a first determining subunit, configured to determine, according to the location information and ephemeris information of the UE, 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; a second determination submodule for determining to perform a 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.
Optionally, the coverage area of the second satellite beam corresponds to a plurality of ground cells; the device may further comprise: and the second processing unit is used for pushing the derivative keys for the ground cells in a preset time.
Optionally, the first processing unit 702 includes:
the first acquisition sub-module is used for acquiring a first mapping relation, wherein the first mapping relation is a mapping relation between satellite beams and a ground base station cell; a first determining submodule, configured to determine, according to location information and ephemeris information of the UE, whether the UE is about to be switched from a coverage area of a first satellite beam to a coverage area of a second satellite beam; a second determining sub-module, configured to determine, if the UE is about to switch from a coverage area of a first satellite beam to a coverage area of a second satellite beam, whether the UE switches from a ground base station cell corresponding to the first satellite beam to a ground base station cell corresponding to the second satellite beam according to the first mapping relationship; and a third determining sub-module, configured to determine to perform a key update if the UE is handed over from a terrestrial base station cell corresponding to the first satellite beam to a terrestrial base station cell corresponding to the second satellite beam.
Optionally, the first obtaining unit is configured to obtain the first mapping relationship stored in advance.
Optionally, the device is applied to a ground base station. The device may further comprise: a first transmitting unit configured to: if it is determined to perform the key update, transmitting key update indication information to the satellite system, and transmitting key update indication information to the UE; or if it is determined to perform the key update, transmitting key update instruction information to the satellite system, and transmitting key update instruction information to the UE by the satellite system.
Optionally, the device is applied to a target surface base station. The first obtaining unit 701 is configured to receive location information of the UE sent by a source terrestrial base station, where the source terrestrial base station obtains the location information of the UE from the satellite system. At this time, the apparatus may further include: and the second sending unit is used for sending key update indication information to the source ground base station if the key update is determined to be executed, and the source ground base station sends the key update indication information to the UE.
Optionally, the apparatus is applied to a source gateway station. The first obtaining unit 701 is configured to receive location information of the UE sent by a source terrestrial base station, where the source terrestrial base station obtains the location information of the UE from the satellite system. At this time, the apparatus may further include: the third sending unit is used for sending a switching request to the target ground base station, wherein the switching request comprises key updating indication information; and sending key updating indication information to the source ground base station, and sending the key updating indication information to the UE by the source ground base station.
The device provided by the embodiment of the present invention may execute the above method embodiment, and its implementation principle and technical effects are similar, and this embodiment will not be described herein.
Referring to fig. 8, fig. 8 is a block diagram of an information processing apparatus according to an embodiment of the present invention, which is applied to a UE. Since the principle of solving the problem of the information processing apparatus is similar to that of the information processing method in the embodiment of the present invention, the implementation of the information processing apparatus can refer to the implementation of the method, and the repetition is omitted.
As shown in fig. 8, the information processing apparatus 800 includes:
a first receiving unit 801 configured to receive key update instruction information, where the key update instruction information is sent by a network device when determining to perform a key update according to location information and ephemeris information of the UE; a first processing unit 802, configured to update a key according to the key update indication.
Optionally, the apparatus may further include: the second receiving unit is used for receiving the key update indication information sent by the ground base station through the Radio Resource Control (RRC) signaling; or receiving key update indication information sent by a satellite system.
The device provided by the embodiment of the present invention may execute the above method embodiment, and its implementation principle and technical effects are similar, and this embodiment will not be described herein.
Referring to fig. 9, fig. 9 is a block diagram of an information processing apparatus according to an embodiment of the present application, which is applied to a satellite system. Since the principle of solving the problem of the information processing apparatus is similar to that of the information processing method in the embodiment of the present application, the implementation of the information processing apparatus can refer to the implementation of the method, and the repetition is omitted.
As shown in fig. 9, the information processing apparatus 900 includes: a first sending unit 901, configured to send location information of a UE, where the location information of the UE is used to determine, when handover is determined according to a measurement result reported by the UE, whether to execute key update according to the location information and ephemeris information of the UE by a network device.
Optionally, the network device includes a ground base station. The device may further comprise: the second sending unit is used for sending a switching request to the ground base station; the first receiving unit is used for receiving a switching request confirmation sent by the ground base station, wherein the switching request confirmation comprises key update indication information.
The device provided by the embodiment of the present application may execute the above method embodiment, and its implementation principle and technical effects are similar, and this embodiment will not be described herein.
It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice. In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
As shown in fig. 10, an information processing apparatus of an embodiment of the present application includes: processor 1000, for reading the program in memory 1020, performs the following processes:
acquiring the position information of UE sent by a satellite system;
and when the switching is determined according to the measurement result reported by the UE, determining whether to execute key updating or not according to the position information and the ephemeris information of the UE.
A transceiver 1010 for receiving and transmitting data under the control of the processor 1000.
Wherein in fig. 10, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by the processor 1000 and various circuits of the memory, represented by the memory 1020, are chained together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 1010 may be a number of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatus 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 in performing operations.
The processor 1010 may be a Central Processing Unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), or it may employ a multi-core architecture.
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 in performing operations.
The processor 1000 is further configured to read the program and perform the following steps:
determining whether the UE is about to be switched from the coverage area of a first satellite beam to the coverage area of a second satellite beam according to the position information and the ephemeris information of 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, then a determination is made to perform a key update.
The coverage area of the second satellite beam corresponds to a plurality of ground cells; the processor 1000 is further configured to read the program and perform the following steps: and pushing the derivative keys for the ground cells in a preset time.
The processor 1000 is further configured to read the program and perform the following steps:
acquiring a first mapping relation, wherein the first mapping relation is a mapping relation between satellite beams and a ground base station cell;
determining whether the UE is about to be switched from the coverage area of a first satellite beam to the coverage area of a second satellite beam according to the position information and the ephemeris information of the UE;
If 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, determining whether 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 according to the first mapping relation;
and 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, determining to execute key updating.
The processor 1000 is further configured to read the program and perform the following steps:
and acquiring the first mapping relation stored in advance.
Optionally, the device is applied to a ground base station; the processor 1000 is further configured to read the program and perform the following steps:
if it is determined to perform the key update, transmitting key update indication information to the satellite system, and transmitting key update indication information to the UE; or alternatively
And if the key updating is determined to be executed, key updating indication information is sent to the satellite system, and the satellite system sends the key updating indication information to the UE.
Optionally, 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:
And receiving the position information of the UE sent by a source ground base station, wherein the source ground base station acquires the position information of the UE from the satellite system. The processor 1000 is further configured to read the program and perform the following steps: and if the key updating is determined to be executed, the key updating indication information is sent to the source ground base station, and the source ground base station sends the key updating indication information to the UE.
Optionally, the apparatus is applied to a source gateway station; the processor 1000 is further configured to read the program and perform the following steps: and receiving the position information of the UE sent by a source ground base station, wherein the source ground base station acquires the position information of the UE from the satellite system. Optionally, the processor 1000 is further configured to read the program, and perform the following steps: transmitting a switching request to a target ground base station, wherein the switching request comprises key updating indication information; and sending key updating indication information to the source ground base station, and sending the key updating indication information to the UE by the source ground base station.
Referring again to fig. 10, the apparatus shown in fig. 10 may also be applied to a satellite system. The processor 1000 is configured to read the program and execute the following steps: and sending the position information of the UE, wherein the position information of the UE is used for determining whether to execute key updating or not by the network equipment according to the position information and ephemeris information of the UE when the switching is determined according to the measurement result reported by the UE.
Optionally, the processor 1000 is further configured to read the program, and perform the following steps:
sending a switching request to the ground base station;
and receiving a switching request confirmation sent by the ground base station, wherein the switching request confirmation comprises key updating indication information.
The device provided by the embodiment of the present invention may execute the above method embodiment, and its implementation principle and technical effects are similar, and this embodiment will not be described herein.
As shown in fig. 11, the information processing apparatus according to the embodiment of the present invention is applicable to a UE, and includes: the processor 1100, configured to read the program in the memory 1120, performs the following procedures:
receiving key update indication information, wherein the key update indication information is sent by network equipment under the condition that the network equipment determines to execute key update according to the position information and ephemeris information of the UE;
and updating the key according to the key updating indication.
A transceiver 1110 for receiving and transmitting data under the control of the processor 1100.
Wherein in fig. 11, a bus architecture may comprise any number of interconnected buses and bridges, and in particular 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 peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. The transceiver 1110 may be a number of elements, i.e., include a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The user interface 1130 may also be an interface capable of interfacing with an inscribed desired device for a different user device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.
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 Processing Unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), or it may employ a multi-core architecture.
The processor 1100 is further configured to read the program, and perform the following steps:
receiving the key update indication information sent by the ground base station through RRC signaling; or alternatively
And receiving key update indication information sent by a satellite system.
The device provided by the embodiment of the present invention may execute the above method embodiment, and its implementation principle and technical effects are similar, and this embodiment will not be described herein.
The embodiment of the invention also provides a readable storage medium, and a program is stored on the readable storage medium, and when the program is executed by a processor, the program realizes the processes of the embodiment of the information processing method, and can achieve the same technical effects, so that repetition is avoided, and the description is omitted here. The readable storage medium may be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic memories (e.g., floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical memories (e.g., CD, DVD, BD, HVD, etc.), semiconductor memories (e.g., ROM, EPROM, EEPROM, nonvolatile memories (NAND FLASH), solid State Disks (SSD)), etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. In light of such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a UE (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.