CN114567362A - Method for information interaction between satellites and satellite - Google Patents
Method for information interaction between satellites and satellite Download PDFInfo
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- CN114567362A CN114567362A CN202011354546.9A CN202011354546A CN114567362A CN 114567362 A CN114567362 A CN 114567362A CN 202011354546 A CN202011354546 A CN 202011354546A CN 114567362 A CN114567362 A CN 114567362A
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- 230000003993 interaction Effects 0.000 title claims abstract description 31
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18519—Operations control, administration or maintenance
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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
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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
- H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/15—Setup of multiple wireless link connections
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/30—Connection release
- H04W76/34—Selective release of ongoing connections
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention provides a method for information interaction between satellites and a satellite. The method comprises the following steps: when the first satellite determines to disconnect from a terminal, sending a first message to a second satellite, wherein the terminal has established a connection with both the first satellite and the second satellite; the first satellite transmits a second message to a third satellite. According to the invention, a target satellite can be selected for inter-satellite handover when a satellite is to be disconnected from the terminal. Other satellites can continue to serve the terminal in the switching process, and the complete disconnection of the double connection in the communication process is avoided. And by establishing a new dual-connection relationship, the overall throughput of the user can be improved and the switching time delay can be reduced while the service continuity of the user is ensured.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method for information interaction between satellites and a satellite.
Background
In recent years, satellite communication has been widely focused and applied as one of network access technologies. In the 6G air-space-ground integrated technology, a satellite communication and a ground communication network form a reconfigurable satellite-ground fusion framework through deep fusion, and global three-dimensional seamless coverage is realized. Satellite communication has two typical transmission modes, one transmission mode is transparent transmission, also called bent pipe forwarding transmission, and signals are only subjected to frequency conversion, signal amplification and other processes on a satellite; another transmission mode is non-transparent transmission, also called on-board regeneration mode, i.e. the satellite has some or all of the base station functionality.
In the existing dual connection mechanism of the 5G New air interface (New Radio, NR), a primary base station is a wireless side anchor point of a user and is mainly responsible for connection between the user and a core network control plane, and a secondary base station may provide additional wireless resources for the user for transmission of user data and signaling. If the connection between the user and the main base station is broken in the communication process, the connection between the user and the auxiliary base station is also broken; if the connection between the user and the auxiliary base station is broken, the connection between the user and the main base station is not broken. The main base station can simultaneously add a plurality of auxiliary base stations to provide additional wireless resources for users. The main base station and the auxiliary base station can perform signaling interaction through an Xn interface.
Compared with ground communication, even though the user does not move in a scene, the high-speed movement of the satellite can cause the user to move among different satellite base stations; if the user also moves at a high speed, such as in a high speed/high speed rail communication scenario, the frequency of inter-satellite movement of the user may increase further. The inter-satellite fast movement causes the experience to be reduced for the real-time service sensitive to the service experience due to fast and frequent switching. In addition, due to the problem of satellite transmission delay, the switching mode based on the core network interface can increase the switching delay and even fail to switch.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a method for information interaction between satellites, which avoids the situation that one satellite is disconnected to cause the connection of another satellite to be also disconnected under the condition of multiple connections of the satellites by defining the information interaction mode of an inter-satellite interface, and simultaneously establishes a new dual-connection architecture through satellite switching, so that the situation that a user link of the satellites is completely disconnected in the switching process can be avoided, the switching is smoother, and the continuity of user services is ensured.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a method for information interaction between satellites is applied to a first satellite, and the method comprises the following steps:
when the first satellite determines to disconnect from a terminal, sending a first message to a second satellite, wherein the terminal has established a connection with both the first satellite and the second satellite;
the first satellite transmits a second message to a third satellite,
wherein the first message is for informing the second satellite that the first satellite is about to be disconnected from the terminal,
the second message is used to inquire whether a third satellite establishes a connection with the terminal.
Optionally, the first satellite transmits a second message to a third satellite after receiving the first response message transmitted by the second satellite.
Optionally, the method for information interaction between satellites further includes:
after the first satellite receives the second response message sent by the third satellite, the first satellite sends a third message to the second satellite,
wherein the third message is used to inform the second satellite that the third satellite has established a connection with the terminal.
Optionally, the method for information interaction between satellites further includes:
and if the data transmission between the first satellite and the terminal is not finished, the first satellite sends the context information of the terminal to the third satellite.
Optionally, after the first satellite transmits the context information of the terminal to the third satellite, the method further includes:
and the first satellite releases the context information of the terminal and disconnects the connection with the terminal.
Optionally, the determining, by the first satellite, to disconnect from the terminal includes:
the first satellite determines to disconnect a beam currently providing service for the terminal from the terminal according to the measurement information reported by the terminal;
and the first satellite determines to switch the beams among the planets according to the corresponding relation between the beams and the physical cell ID.
Optionally, the first message includes a notification message for disconnecting the connection with the terminal; the second message comprises a connection handover request message; the third message comprises a target satellite message.
Optionally, when the first response message indicates that the response is successful, the first satellite sends a second message to the third satellite to establish a connection with the third satellite.
Optionally, when the second response message indicates that the response is successful, the first satellite sends a third message to the second satellite to notify the third satellite of establishing a connection with the terminal.
Optionally, the second response message further includes context information allowing the terminal to be received.
A method for information interaction between satellites is applied to a second satellite, and the method comprises the following steps:
the second satellite receives a first message sent by a first satellite, wherein the terminal is connected with the first satellite and the second satellite;
the second satellite sends a first response message to the first satellite;
the second satellite receives a third message transmitted by the first satellite,
wherein the first message is used to inform the second satellite that the first satellite is about to disconnect from the terminal,
the third message is used to inform the second satellite that the third satellite has established a connection with the terminal.
Optionally, the first message includes a notification message for disconnecting the connection with the terminal, and the third message includes a target satellite message indicating establishment of a multi-connection relationship with the third satellite.
A first satellite, comprising:
a first sending module that sends a first message to a second satellite when the first satellite determines to disconnect from a terminal that has established a connection with both the first satellite and the second satellite;
a second transmitting module that transmits a second message to a third satellite,
wherein the first message is for informing the second satellite that the first satellite is about to be disconnected from the terminal,
the second message is used to inquire whether a third satellite establishes a connection with the terminal.
A second satellite, comprising:
the terminal comprises a first receiving module, a second receiving module and a sending module, wherein the first receiving module is used for receiving a first message sent by a first satellite, and the terminal is connected with the first satellite and the second satellite;
a third sending module, configured to send a first response message to the second satellite;
a second receiving module for receiving a third message transmitted by the first satellite,
wherein the first message is for informing the second satellite that the first satellite is about to be disconnected from the terminal,
the third message is used to inform the second satellite that the third satellite has established a connection with the terminal.
A communication device, comprising: a processor, a memory storing a computer program, the computer program being executed by the processor to perform the above-mentioned method of information interaction between satellites.
A computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the above-described method for information interaction between satellites.
The scheme of the invention at least comprises the following beneficial effects:
in a satellite constellation system having an on-board processing function and forming an inter-satellite link, when a satellite is to be disconnected from a terminal, a target satellite can be selected for inter-satellite switching, and disconnection information of the terminal and information of the target satellite are notified to other satellites commonly served therewith. Other satellites can continue to serve the terminal in the switching process, and the complete disconnection of the double connection in the communication process is avoided. By establishing a new dual-connection relationship, the overall throughput of the user can be improved and the switching time delay can be reduced while the service continuity of the user is ensured.
Drawings
FIG. 1 is a flow chart illustrating a method for information interaction between satellites according to an embodiment of the invention;
FIG. 2 is another flow chart of a method of information interaction between satellites according to an embodiment of the invention;
FIG. 3 is a detailed flow chart of a method of information interaction between satellites according to an embodiment of the invention;
FIG. 4 is a block diagram of a first satellite in accordance with an embodiment of the present invention;
fig. 5 is a block diagram of a second satellite according to an embodiment of the invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
As shown in fig. 1, there is provided a method for information interaction between satellites, applied to a first satellite, the method including:
wherein the first message is for informing the second satellite that the first satellite is about to be disconnected from the terminal,
the second message is used to inquire whether a third satellite establishes a connection with the terminal.
In this embodiment, a dual connection relationship has been established between the terminal and the first satellite and the second satellite, the first satellite and the second satellite perform information interaction through an inter-satellite link, and provide services for the terminal through resource coordination scheduling, where the first satellite and the second satellite have no difference between a primary satellite and a secondary satellite.
When the first satellite judges that the current serving beam needs to be disconnected from the terminal according to factors such as the measurement report result of the terminal and the like, the first satellite judges to perform intra-satellite beam switching or inter-satellite beam switching according to the corresponding relation between the beam and the PCI.
And the first satellite judges that the inter-satellite beam switching is needed, and then the first satellite sends a first message to a second satellite which simultaneously serves the same terminal through an inter-satellite link, wherein the first message at least comprises target terminal node disconnection notification information.
When the first satellite receives a successful response message from the second satellite, the first satellite looks for the appropriate target satellite (the third satellite) and sends a second message to the target satellite, the second message containing the "connection switch request" information.
In an optional embodiment of the invention, the first satellite sends a second message to a third satellite after receiving the first response message sent by the second satellite.
In this embodiment, when the first satellite receives the first response message of the second satellite to the first message, if the first response is a failure response, the first satellite disconnects from the terminal, the second satellite keeps connected with the terminal, and the process ends.
If the first response message is a successful response, the first satellite searches for a suitable target satellite (i.e., the third satellite) and sends a second message to the target satellite, wherein the second message contains the connection switching request information.
In an optional embodiment of the present invention, the method for information interaction between satellites further includes:
after the first satellite receives the second response message sent by the third satellite, the first satellite sends a third message to the second satellite,
wherein the third message is used to inform the second satellite that the third satellite has established a connection with the terminal.
In this embodiment, the first satellite receives a second response message of the third satellite to the second message, if the second response message is a failure response, the first satellite disconnects from the terminal, the second satellite maintains connection with the terminal, and the process ends.
And if the second response message is a successful response, the first satellite sends a third message to the second satellite, wherein the third message comprises target satellite information and is used for informing the second satellite that a new double-connection link can be established between the second satellite and the terminal and between the second satellite and the third satellite.
In an optional embodiment of the present invention, the method for information interaction between satellites further includes:
and if the data transmission between the first satellite and the terminal is not finished, the first satellite sends the context information of the terminal to the third satellite.
In an optional embodiment of the present invention, after the first satellite transmits the context information of the terminal to the third satellite, the method further includes:
and the first satellite releases the context information of the terminal and disconnects the connection with the terminal.
In an optional embodiment of the invention, the determining by the first satellite that the terminal is to be disconnected comprises:
the first satellite determines to disconnect a beam currently providing service for the terminal from the terminal according to the measurement information reported by the terminal;
and the first satellite determines to switch the beams among the planets according to the corresponding relation between the beams and the physical cell ID.
In an optional embodiment of the present invention, the first message comprises a notification message to disconnect the connection with the terminal; the second message comprises a connection handover request message; the third message comprises a target satellite message.
In an optional embodiment of the invention, when the first response message indicates a successful response, the first satellite sends a second message to the third satellite to establish a connection with the third satellite.
In an optional embodiment of the present invention, when the second response message indicates that the response is successful, the first satellite sends a third message to the second satellite, and notifies a third satellite of establishing a connection with the terminal.
In an optional embodiment of the invention, the second response message further comprises context information allowing to receive the terminal.
In this embodiment, when there is data that has not been transmitted between the first satellite and the terminal, the context information of the terminal is exchanged to the third satellite. The first satellite releases the context information and disconnects the link with the terminal.
The second response message may contain, in addition to the success response message, a permission to receive the terminal context message. The context information is data carrying information.
Optionally, the terminals involved in the inter-satellite information interaction method may also correspond to all terminals in one area, that is, an area where satellite beams have the same PCI coverage, that is, the method may be extended to group handover or area handover.
In a satellite constellation system having an on-board processing function and forming an inter-satellite link, when a satellite is to be disconnected from a terminal, a target satellite can be selected for inter-satellite switching, and disconnection information of the terminal and information of the target satellite are notified to other satellites commonly served therewith. Other satellites can continue to serve the terminal in the switching process, and the complete disconnection of the double connection in the communication process is avoided. By establishing a new dual-connection relationship, the overall throughput of the user can be improved and the switching time delay can be reduced while the service continuity of the user is ensured.
As shown in fig. 2, a method for information interaction between satellites is applied to a second satellite, and the method includes:
wherein the first message is used to inform the second satellite that the first satellite is about to disconnect from the terminal,
the third message is used to inform the second satellite that the third satellite has established a connection with the terminal.
In an optional embodiment of the present invention, the first message includes a notification message for disconnecting the connection with the terminal, and the third message includes a target satellite message indicating that a multi-connection relationship is established with the third satellite.
In this embodiment, a dual connection relationship has been established between the terminal and the first satellite and the second satellite, the first satellite and the second satellite perform information interaction through an inter-satellite link, and provide services for the terminal through resource coordination scheduling, where the first satellite and the second satellite have no difference between a primary satellite and a secondary satellite.
When the first satellite judges that the inter-satellite beam switching is needed, the first satellite sends a first message to a second satellite which simultaneously serves the same terminal through an inter-satellite link, and the first message at least comprises target terminal node disconnection notification information.
The second satellite sends a first response message to the first satellite, and if the first response message is a successful response, the first satellite searches for a suitable target satellite (third satellite) and sends a second message to the target satellite to request connection switching.
And if the connection switching is successful, the second satellite receives a third message sent by the first satellite, wherein the third message comprises 'target satellite' information and is used for informing the second satellite that a new double-connection link can be established between the second satellite and the terminal and between the second satellite and the third satellite.
In a satellite constellation system having an on-board processing function and forming an inter-satellite link, when a satellite is to be disconnected from a terminal, a target satellite can be selected for inter-satellite switching, and disconnection information of the terminal and information of the target satellite are notified to other satellites commonly served therewith. Other satellites can continue to serve the terminal in the switching process, and the complete disconnection of the double connection in the communication process is avoided. By establishing a new dual-connection relationship, the overall throughput of the user can be improved and the switching time delay can be reduced while the service continuity of the user is ensured.
Fig. 3 illustrates a method of information interaction between satellites according to a specific embodiment of the present invention. In the embodiment shown in fig. 3, the source satellite 1, the source satellite 2, and the target satellite 3 each have an on-satellite reproduction function, i.e., information can be exchanged via an inter-satellite link.
When the terminal has established double connection with the source satellite 1 and the source satellite 2, if the source satellite 1 needs to be disconnected from the terminal, the source satellite 1 judges that inter-satellite beam switching needs to be performed through the corresponding relation between beams and the PCI, and judges that the beam covers the user for enough time through ephemeris information, the position of the user and other information, namely the switching process is completed enough, and then the inter-satellite switching process can be initiated.
The inter-satellite handover procedure shown in fig. 3 includes the following steps:
step 1) a source satellite 1 sends a first message to a source satellite 2, wherein the first message comprises target terminal node disconnection notification information and is used for notifying the source satellite 2 of the target terminal node disconnection information;
step 2) the source satellite 1 receives a first response message which is successfully responded by the source satellite 2 and is sent;
step 3) the source satellite 1 selects a proper target satellite 3 and sends a second message to the target satellite 3, wherein the second message comprises connection switching request information;
step 4) the source satellite 1 receives a second response message which is sent by the satellite 3 and successfully responds to the second message, namely the target satellite 3 receives the connection switching request of the source satellite 1;
the source satellite 1 sends Radio Resource Control (RRC) to the user terminal, and connects the reconfiguration message; and the target satellite 3 successfully establishes a connection relationship with the user terminal after the RRC connection reconfiguration is completed.
Step 5), the source satellite 1 sends a third message to the source satellite 2, wherein the third message contains the information of the target satellite 3 and is used for informing the source satellite 2 and the target satellite 3 that a new double-connection relation can be formed;
step 6), the source satellite 1 interacts the terminal context information to the target satellite 3, releases the context information and disconnects the connection with the user terminal;
and 7) after the target satellite 3 establishes a connection relation with a user, the source satellite 2 and the target satellite 3 form a new double-connection relation, and information interaction, resource coordination scheduling and the like are carried out on the terminals through links between the satellites.
In a satellite constellation system having an on-board processing function and forming an inter-satellite link, when a satellite is to be disconnected from a terminal, a target satellite can be selected for inter-satellite switching, and disconnection information of the terminal and information of the target satellite are notified to other satellites commonly served therewith. Other satellites can continue to serve the terminal in the switching process, and the complete disconnection of the double connection in the communication process is avoided. By establishing a new dual-connection relationship, the overall throughput of the user can be improved and the switching time delay can be reduced while the service continuity of the user is ensured.
As shown in fig. 4, a first satellite 40 includes:
a first sending module 410 that sends a first message to a second satellite when the first satellite determines to disconnect from a terminal that has established a connection with both the first satellite and the second satellite;
a second transmitting module 420 for transmitting a second message to a third satellite,
wherein the first message is for informing the second satellite that the first satellite is about to be disconnected from the terminal,
the second message is used to inquire whether a third satellite establishes a connection with the terminal.
In one embodiment of the invention, the first satellite transmits a second message to a third satellite upon receiving the first response message transmitted by the second satellite.
In one embodiment of the invention, after the first satellite receives the second response message sent by the third satellite, the first satellite sends a third message to the second satellite,
wherein the third message is used to inform the second satellite that the third satellite has established a connection with the terminal.
In an embodiment of the present invention, if the data transmission between the first satellite and the terminal is not completed, the first satellite sends the context information of the terminal to the third satellite.
In one embodiment of the present invention, after the first satellite transmits the context information of the terminal to the third satellite, the method further includes:
and the first satellite releases the context information of the terminal and disconnects the connection with the terminal.
In one embodiment of the invention, the determining of the first satellite to disconnect from the terminal comprises:
the first satellite determines to disconnect a beam currently providing service for the terminal from the terminal according to the measurement information reported by the terminal;
and the first satellite determines to switch the beams among the planets according to the corresponding relation between the beams and the physical cell ID.
In one embodiment of the invention, the first message comprises a notification message for disconnecting the connection with the terminal; the second message comprises a connection handover request message; the third message comprises a target satellite message.
In one embodiment of the invention, when the first response message indicates a successful response, the first satellite sends a second message to the third satellite to establish a connection with the third satellite.
In one embodiment of the invention, when the second response message indicates a successful response, the first satellite sends a third message to the second satellite, informing the third satellite to establish a connection with the terminal.
In one embodiment of the invention, the second response message further comprises context information allowing reception of the terminal.
In a satellite constellation system having an on-board processing function and forming an inter-satellite link, when a satellite is to be disconnected from a terminal, a target satellite can be selected for inter-satellite switching, and disconnection information of the terminal and information of the target satellite are notified to other satellites commonly served therewith. Other satellites can continue to serve the terminal in the switching process, and the complete disconnection of the double connection in the communication process is avoided. By establishing a new dual-connection relationship, the overall throughput of the user can be improved and the switching time delay can be reduced while the service continuity of the user is ensured.
As shown in fig. 5, a second satellite 50 includes:
a first receiving module 510, configured to receive a first message sent by a first satellite, where the terminal has established a connection with both the first satellite and the second satellite;
a third transmitting module 520, configured to transmit a first response message to the second satellite;
a second receiving module 530 for receiving a third message transmitted by the first satellite,
wherein the first message is for informing the second satellite that the first satellite is about to be disconnected from the terminal,
the third message is used to inform the second satellite that the third satellite has established a connection with the terminal.
In one embodiment of the invention, the first message comprises a notification message for disconnecting the terminal, and the third message comprises a target satellite message indicating that a multi-connection relationship is established with the third satellite.
In a satellite constellation system having an on-board processing function and forming an inter-satellite link, when a satellite is to be disconnected from a terminal, a target satellite can be selected for inter-satellite switching, and disconnection information of the terminal and information of the target satellite are notified to other satellites commonly served therewith. Other satellites can continue to serve the terminal in the switching process, and the complete disconnection of the double connection in the communication process is avoided. By establishing a new dual-connection relationship, the overall throughput of the user can be improved and the switching time delay can be reduced while the service continuity of the user is ensured.
An embodiment of the present invention further provides a communication device, including: a processor, a memory storing a computer program which, when executed by the processor, performs the method as described above. All the implementation manners in the method embodiment are applicable to the embodiment, and the same technical effect can be achieved.
Embodiments of the present invention also provide a computer-readable storage medium comprising instructions which, when executed on a computer, cause the computer to perform the method as described above. All the implementation manners in the above method embodiment are applicable to this embodiment, and the same technical effect can be achieved.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
Furthermore, it should be noted that in the apparatus and method of the present invention, it is obvious that each component or each step may be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processor, storage medium, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.
Thus, the objects of the invention may also be achieved by running a program or a set of programs on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (16)
1. A method for information interaction between satellites is applied to a first satellite, and is characterized in that the method comprises the following steps:
when the first satellite determines to disconnect from a terminal, sending a first message to a second satellite, wherein the terminal has established a connection with both the first satellite and the second satellite;
the first satellite transmits a second message to a third satellite,
wherein the first message is for informing the second satellite that the first satellite is about to be disconnected from the terminal,
the second message is used to inquire whether a third satellite establishes a connection with the terminal.
2. The method of claim 1, wherein the first satellite transmits a second message to a third satellite after receiving the first response message transmitted by the second satellite.
3. The method of claim 1, further comprising:
after the first satellite receives the second response message sent by the third satellite, the first satellite sends a third message to the second satellite,
wherein the third message is used to inform the second satellite that the third satellite has established a connection with the terminal.
4. The method of claim 1, further comprising:
and if the data transmission between the first satellite and the terminal is not finished, the first satellite sends the context information of the terminal to the third satellite.
5. The method of claim 4, wherein after the first satellite transmits the context information of the terminal to the third satellite, the method further comprises:
and the first satellite releases the context information of the terminal and disconnects the connection with the terminal.
6. The method of claim 1, wherein the determining, by the first satellite, that the terminal is to be disconnected comprises:
the first satellite determines to disconnect a beam currently providing service for the terminal from the terminal according to the measurement information reported by the terminal;
and the first satellite determines to switch the beams among the planets according to the corresponding relation between the beams and the physical cell ID.
7. The method of claim 1, wherein the information interaction between the satellites,
the first message comprises a notification message for disconnecting the connection with the terminal;
the second message comprises a connection handover request message;
the third message comprises a target satellite message.
8. The method of claim 1, wherein the information interaction between the satellites,
and when the first response message indicates that the response is successful, the first satellite sends a second message to the third satellite to establish connection with the third satellite.
9. The method of claim 1, wherein the information interaction between the satellites,
and when the second response message indicates that the response is successful, the first satellite sends a third message to the second satellite to inform the third satellite of establishing connection with the terminal.
10. The method of claim 7,
the second response message further includes context information allowing reception of the terminal.
11. A method for information interaction between satellites is applied to a second satellite, and is characterized in that the method comprises the following steps:
the second satellite receives a first message sent by a first satellite, wherein the terminal is connected with the first satellite and the second satellite;
the second satellite sends a first response message to the first satellite;
the second satellite receives a third message transmitted by the first satellite,
wherein the first message is for informing the second satellite that the first satellite is about to be disconnected from the terminal,
the third message is used to inform the second satellite that the third satellite has established a connection with the terminal.
12. The method of claim 9, wherein the information interaction between the satellites,
the first message comprises a notification message for disconnecting the connection with the terminal;
the third message includes a target satellite message indicating establishment of a multi-connection relationship with the third satellite.
13. A first satellite, comprising:
a first sending module that sends a first message to a second satellite when the first satellite determines to disconnect from a terminal that has established a connection with both the first satellite and the second satellite;
a second transmitting module that transmits a second message to a third satellite,
wherein the first message is for informing the second satellite that the first satellite is about to be disconnected from the terminal,
the second message is used to inquire whether a third satellite establishes a connection with the terminal.
14. A second satellite, comprising:
the terminal comprises a first receiving module, a second receiving module and a transmitting module, wherein the first receiving module is used for receiving a first message sent by a first satellite, and the terminal is connected with the first satellite and the second satellite;
a third sending module, configured to send a first response message to the second satellite;
a second receiving module for receiving a third message transmitted by the first satellite,
wherein the first message is for informing the second satellite that the first satellite is about to be disconnected from the terminal,
the third message is used to inform the second satellite that the third satellite has established a connection with the terminal.
15. A communication device, comprising: a processor, a memory storing a computer program which, when executed by the processor, performs the method of any of claims 1 to 10 or the method of any of claims 11 to 12.
16. A computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform the method of any one of claims 1 to 10 or the method of any one of claims 11 to 12.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104378793A (en) * | 2013-08-12 | 2015-02-25 | 中兴通讯股份有限公司 | Switching method, master control base station and controlled base station |
| CN105992292A (en) * | 2015-02-13 | 2016-10-05 | 中兴通讯股份有限公司 | ENB handover method in heterogeneous network and eNB |
| US20170374705A1 (en) * | 2015-01-30 | 2017-12-28 | Kyocera Corporation | User terminal and base station |
| US20200187064A1 (en) * | 2017-05-05 | 2020-06-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Split signalling radio bearer in handover |
| CN111630895A (en) * | 2018-06-12 | 2020-09-04 | Oppo广东移动通信有限公司 | RLF processing method and device and communication equipment |
| WO2020200261A1 (en) * | 2019-04-03 | 2020-10-08 | 中兴通讯股份有限公司 | Connecting method and apparatus, network device, and storage medium |
-
2020
- 2020-11-27 CN CN202011354546.9A patent/CN114567362A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104378793A (en) * | 2013-08-12 | 2015-02-25 | 中兴通讯股份有限公司 | Switching method, master control base station and controlled base station |
| US20170374705A1 (en) * | 2015-01-30 | 2017-12-28 | Kyocera Corporation | User terminal and base station |
| CN105992292A (en) * | 2015-02-13 | 2016-10-05 | 中兴通讯股份有限公司 | ENB handover method in heterogeneous network and eNB |
| US20200187064A1 (en) * | 2017-05-05 | 2020-06-11 | Telefonaktiebolaget Lm Ericsson (Publ) | Split signalling radio bearer in handover |
| CN111630895A (en) * | 2018-06-12 | 2020-09-04 | Oppo广东移动通信有限公司 | RLF processing method and device and communication equipment |
| WO2020200261A1 (en) * | 2019-04-03 | 2020-10-08 | 中兴通讯股份有限公司 | Connecting method and apparatus, network device, and storage medium |
Non-Patent Citations (1)
| Title |
|---|
| ERICSSON: "R3-141972 "Introduction of Dual Connectivity"", 3GPP TSG_RAN\\WG3_IU, no. 3, 2 September 2014 (2014-09-02) * |
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