WO2023131088A1 - 一种信息传输方法、装置及介质 - Google Patents
一种信息传输方法、装置及介质 Download PDFInfo
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- WO2023131088A1 WO2023131088A1 PCT/CN2022/144269 CN2022144269W WO2023131088A1 WO 2023131088 A1 WO2023131088 A1 WO 2023131088A1 CN 2022144269 W CN2022144269 W CN 2022144269W WO 2023131088 A1 WO2023131088 A1 WO 2023131088A1
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- 238000000034 method Methods 0.000 title claims abstract description 74
- 230000005540 biological transmission Effects 0.000 title claims abstract description 28
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- 210000004027 cell Anatomy 0.000 claims abstract description 52
- 238000004891 communication Methods 0.000 claims description 48
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- 230000011664 signaling Effects 0.000 abstract description 5
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- 238000012986 modification Methods 0.000 description 3
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- 230000003321 amplification Effects 0.000 description 2
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/50—Service provisioning or reconfiguring
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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
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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
- H04B7/18523—Satellite systems for providing broadcast service to terrestrial stations, i.e. broadcast satellite service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/06—Airborne or Satellite Networks
Definitions
- the present application relates to the field of communication technology, and in particular to an information transmission method, device and medium.
- low-orbit satellite communication systems In order to achieve global coverage, low-orbit satellite communication systems generally require a large number of satellites to form a constellation system, so that the entire constellation system provides services for User Equipment (UE).
- UE User Equipment
- the coverage area of different satellites on the ground may be different, which may cause the coverage of the next satellite cell to be not covered at the corresponding next satellite cell service start time after the UE receives the service start time of the next satellite cell to the location of the UE, causing the UE to fail to camp on the next satellite cell.
- the present application provides an information transmission method, device and medium, which can prevent user equipment from failing to camp on a cell while reducing power consumption waste.
- the embodiment of the present application provides an information transmission method, which is applied to user equipment, and the user equipment is located in the service area of the second satellite cell, including:
- the first information includes the service start time of the first satellite cell or includes the first satellite cell list information; the first satellite cell list information includes the service start time of at least one satellite cell; according to the first satellite cell list information The information determines the service start time of the next satellite cell providing service for the user equipment.
- the service start time of the next satellite cell that provides services for the user equipment is determined according to the received information content, and the service start time determined by different information content is different, that is, in different cases, the service start time is determined in different ways Determining the service start time can reduce unnecessary signaling overhead and improve resource utilization.
- the first satellite cell when the first information includes the service start time of the first satellite cell, the first satellite cell starts to provide services for the user equipment in the service area of the second satellite cell at the service start time .
- the first information includes first satellite cell list information
- at least one satellite cell in the first satellite cell list information starts to provide services for at least one user equipment within the service area of the second satellite cell at a corresponding service start time .
- the service area of the second satellite cell is within the ground coverage area of the currently provided service.
- the current service area of the second satellite cell is area A1
- the coverage area of the second satellite cell becomes area B1.
- the user equipment receives the first information when the current service area of the second satellite cell is area A1.
- the first satellite cell starts to provide service for the user equipment in the service area of the second satellite cell at the service start time.
- the first satellite cell provides service for the user equipment in the area A1 at the service start time. That is to say, if the time when the second satellite cell is in the area A1 is the current time, the service start time of the first satellite cell is a future time after the current time.
- the first satellite cell starts to provide services for user equipment in the service area of the second satellite cell at the service start time, and it can also be understood that the coverage area of the first satellite cell at the service start time can cover the current service area of the second satellite cell .
- the first information includes the service start time of the first satellite cell
- the determining the service start of the next satellite cell that provides services for the user equipment according to the first information includes: : determining the service start time of the first satellite cell as the service start time of the next satellite cell providing service for the user equipment.
- the first information includes satellite cell list information
- the satellite cell list further includes coverage area information of the at least one satellite cell at a corresponding service start time
- the The information determines the service start time of the next satellite cell that provides services for the user equipment, including: according to the location information of the user equipment, the coverage area information of the at least one satellite cell at the corresponding service start time, from the first
- the satellite cell list information determines a third satellite cell that can cover the location of the user equipment; and determines the service start time corresponding to the third satellite cell as the service start time of the next satellite cell that provides services for the user equipment.
- the first satellite cell is the earliest satellite cell that can provide services for the user equipment in the satellite communication system to which the user equipment belongs.
- the satellite cell that can provide the earliest service is selected and sent to the user equipment, which can reduce the time for the user equipment to interrupt communication even in a discontinuous communication scenario.
- the service start time corresponding to the third satellite cell is determined to be before the service start time of the next satellite cell serving the user equipment, and the method further includes: receiving a coverage area A change indication, where the coverage area change indication is used to indicate that the coverage area of the next satellite cell in the satellite communication system to which the user equipment belongs is different from the service area of the second satellite cell.
- a coverage change indication is provided, so that the user equipment directly determines the service start time of the next satellite cell according to the satellite cell list information.
- the first information includes the service start time of the first satellite cell, and the method further includes:
- the second satellite cell list information includes the service start time of at least one satellite cell and the coverage area information of the at least one satellite cell; the at least one satellite cell list information included in the second satellite cell The coverage area of the cell overlaps with the service area of the second satellite cell; the first satellite cell list information includes at least one satellite cell whose service start time is earlier than the first satellite cell's service start time;
- the coverage area of the fourth satellite cell at the service start time includes the location of the user equipment, and the service start time of the fourth satellite cell is earlier than the service start time of the first satellite cell.
- the user equipment can determine the next satellite cell and the service start time according to the dwell time requirement.
- the method further includes:
- the coverage area description information includes the coverage start time respectively corresponding to the at least one coverage area, and coverage information of the at least one coverage area at the corresponding coverage start time;
- the coverage of any coverage area included in the coverage area description information overlaps with the current service area of the second satellite cell.
- the coverage information includes reference point information, or includes reference point information and a coverage radius.
- the present application provides an information transmission method applied to network devices, including:
- first information includes a service start time of a first satellite cell or includes first satellite cell list information, and the first satellite cell list information includes a service start time of at least one satellite cell;
- the first coverage area of the first satellite cell at least covers the service area of the second satellite cell, and the first coverage area is the first coverage area of the first satellite cell at the service start time.
- the area to start covering; or, the first satellite cell list information also includes the coverage area information of the at least one satellite cell at the corresponding service start time, and the service area of the at least one satellite cell included in the first satellite cell list information There is overlap with the current service area of the second satellite cell.
- the content of the first information is broadcast through the content of the obtained first information, that is, the relationship between the currently serving satellite cell and the determined coverage area of the next satellite cell, which can reduce unnecessary signaling overhead and improve resource utilization efficiency.
- the user equipment can analyze the broadcast content according to the broadcast content and its own needs, reduce unnecessary operations, and further reduce the power consumption of the user equipment.
- the first satellite cell is the earliest satellite cell that can provide services for the user equipment in the satellite communication system to which the network device belongs.
- selecting the satellite cell that can provide the earliest service and broadcasting to the user equipment can reduce the time for the user equipment to interrupt communication even in a discontinuous communication scenario.
- the first information includes first satellite cell list information
- the method further includes: broadcasting a coverage area change indication to the user equipment; the coverage area change indication is used to indicate the The coverage area of the satellite cell next to the second satellite cell in the satellite communication system to which the network device belongs is different from the service area of the second satellite cell.
- a coverage change indication is provided, so that the user equipment directly determines the service start time of the next satellite cell according to the satellite cell list information.
- the first information includes first satellite cell list information
- the method further includes:
- the coverage area description information includes coverage start times respectively corresponding to the at least one coverage area, and coverage information of the at least one coverage area at the corresponding coverage start times.
- the user equipment can know when there is a coverage area or satellite cell that can provide services for itself, so that unnecessary satellite cell searches can be reduced to reduce waste of resources.
- the coverage of any coverage area included in the coverage area description information overlaps with the current service area of the second satellite cell.
- the coverage information includes reference point information and/or coverage radius.
- the first information includes the service start time of the first satellite cell, and the method further includes:
- the second satellite cell list information includes the service start time of at least one satellite cell and the coverage area information of the at least one satellite cell; the coverage area and the coverage area of the at least one satellite cell included in the second satellite cell list information The service area of the second satellite cell overlaps; the list information of the first satellite cell includes at least one satellite cell whose service start time is earlier than the service start time of the first satellite cell.
- the user equipment can determine the next satellite cell and the service start time according to the dwell time requirement.
- sending the first information to the user equipment in the current service area of the second satellite cell includes:
- the first satellite cell list and the service start time of the first satellite cell are multiplexed with the same field of the same message. It should be understood that the list information of the first satellite cell and the service start time of the first satellite cell will not be sent at the same time. In some cases, the first satellite cell list needs to be sent, and the first satellite cell list is sent through the first field. In other cases, when the service start time of the first satellite cell needs to be sent, the service start time of the first satellite cell is sent through the first field.
- sending the first information to UEs in the current service area of the second satellite cell includes:
- the first satellite cell list and the service start time of the first satellite cell are sent through different fields of the same message.
- the first satellite cell list needs to be sent, and the first satellite cell list is sent through the third field.
- the service start time of the first satellite cell is sent through the second field.
- the embodiment of the present application provides a user equipment, the user equipment UE is located in the current service area of the second satellite cell, and the apparatus includes a transceiver and a processor:
- the processor is configured to receive first information through the transceiver, the first information includes the service start time of the first satellite cell or includes the first satellite cell list information; the first satellite cell list information includes at least A service start time of a satellite cell; determining a service start time of a next satellite cell that provides services for the user equipment according to the first information.
- the first information includes a service start time of the first satellite cell
- the processor is specifically configured to:
- the first information includes satellite cell list information
- the satellite cell list further includes coverage area information of the at least one satellite cell at a corresponding service start time
- the processor specifically uses At:
- the first satellite cell is the earliest satellite cell that can provide services for the user equipment in the satellite communication system to which the user equipment belongs.
- the processor is further configured to: determine that the service start time corresponding to the third satellite cell is before the service start time of the next satellite cell that provides services for the user equipment,
- the coverage area change indication is received by the transceiver, where the coverage area change indication is used to indicate that the coverage area of the next satellite cell in the satellite communication system to which the user equipment belongs is different from the service area of the second satellite cell.
- the processor is specifically configured to:
- a first message is received by the transceiver, and the first information is acquired from a first field of the first message.
- the processor is specifically configured to:
- the second message is received by the transceiver, and the first satellite cell list information is acquired from the second field of the second message.
- the first information includes the service start time of the first satellite cell
- the transceiver is further configured to receive second satellite cell list information
- the second satellite cell list information includes at least The service start time of a satellite cell and the coverage area information of the at least one satellite cell; the coverage area of at least one satellite cell included in the second satellite cell list information overlaps with the service area of the second satellite cell;
- the first satellite cell list information includes at least one satellite cell whose service start time is earlier than the first satellite cell's service start time;
- the processor is further configured to select a fourth satellite cell from the second serving cell list as the next one for the user equipment when it is determined that the service start time of the first satellite cell does not meet the dwell time requirement
- the satellite cells providing the service
- the coverage area of the fourth satellite cell at the service start time includes the location of the user equipment, and the service start time of the fourth satellite cell is earlier than the service start time of the first satellite cell.
- the embodiment of the present application provides a network device, including a transceiver and a processor;
- the processor is configured to determine the first information, the first information includes the service start time of the first satellite cell or includes the first satellite cell list information, and the first satellite cell list information includes the service of at least one satellite cell Starting time;
- the first coverage area of the first satellite cell at least covers the service area of the second satellite cell, and the first coverage area is the first coverage area of the first satellite cell at the service start time. the area to start covering; or,
- the first satellite cell list information also includes the coverage area information of the at least one satellite cell at the corresponding service start time, and the service area of the at least one satellite cell list information included in the first satellite cell is different from that of the second satellite cell There is an overlap in the current service areas of .
- the first satellite cell is the earliest satellite cell that can provide services for the user equipment in the satellite communication system to which the network device belongs.
- the first information includes first satellite cell list information
- the processor is further configured to: control the transceiver to broadcast a coverage area change indication to the UE; the coverage area The change instruction is used to indicate that the coverage area of the next satellite cell in the satellite communication system to which the network device belongs is different from the service area of the second satellite cell.
- the processor is specifically configured to:
- the processor is specifically configured to:
- the first information includes service start time of the first satellite cell
- the processor is further configured to:
- the second satellite cell list information includes the service start time of at least one satellite cell and the coverage area information of the at least one satellite cell; the coverage area and the coverage area of the at least one satellite cell included in the second satellite cell list information The service area of the second satellite cell overlaps; the list information of the first satellite cell includes at least one satellite cell whose service start time is earlier than the service start time of the first satellite cell.
- the present application provides an information transmission device, which is applied to user equipment, and the user equipment is located in the service area of the second satellite cell, including:
- a receiving unit configured to receive first information, the first information including the service start time of the first satellite cell or the first satellite cell list information; the first satellite cell list information includes the service start time of at least one satellite cell ;
- a processing unit configured to determine, according to the first information, a service start time of a next satellite cell that provides services for the user equipment.
- the present application provides an information transmission device applied to network equipment, including:
- a determining unit configured to determine first information, where the first information includes the service start time of the first satellite cell or includes first satellite cell list information, and the first satellite cell list information includes the service start time of at least one satellite cell ;
- a sending unit configured to send the first information to user equipments in the current service area of the second satellite cell.
- the present application provides a computer-readable storage medium, the storage medium stores computer instructions, and when the computer instructions are executed by a processor, the method described in any one of the implementation manners in the first aspect is implemented.
- the present application provides a computer-readable storage medium, the storage medium stores computer instructions, and when the computer instructions are executed by a processor, the method described in any one of the implementation manners in the second aspect is implemented.
- the embodiment of the present application provides a computer program product, the computer program product including: computer program code, when the computer program code runs, the method performed by the network device in the first aspect above is executed Execute, or cause the method executed by the user equipment in the above second aspect to be executed.
- FIG. 1 is a schematic diagram of a satellite communication system architecture provided by an embodiment of the present application
- Fig. 2 is the schematic diagram of Earth-fixed satellite and Earth-moving satellite provided by the embodiment of the present application;
- FIG. 3 is a schematic diagram of a satellite coverage provided by an embodiment of the present application.
- FIG. 4 is a schematic diagram of coverage of another satellite provided by an embodiment of the present application.
- FIG. 5 is a schematic diagram of coverage of another satellite provided in the embodiment of the present application.
- FIG. 6 is a schematic flow chart of an information transmission method provided in an embodiment of the present application.
- FIG. 7 is a schematic flowchart of another information transmission method provided by the embodiment of the present application.
- FIG. 8 is a schematic flowchart of another information transmission method provided by the embodiment of the present application.
- FIG. 9 is a schematic flowchart of another information transmission method provided by the embodiment of the present application.
- FIG. 10 is a schematic structural diagram of an information transmission device provided by an embodiment of the present application.
- FIG. 11 is a schematic structural diagram of another information transmission device provided by the embodiment of the present application.
- FIG. 12 is a schematic structural diagram of a network device provided by an embodiment of the present application.
- FIG. 13 is a schematic structural diagram of a user equipment provided in an embodiment of the present application.
- first and “second” in the embodiments of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence.
- “And/or” in the embodiment of this application describes the association relationship of associated objects, indicating that there may be three relationships, for example, A and/or B, which may mean: A exists alone, A and B exist simultaneously, and B exists alone These three situations.
- the character “/” generally indicates that the contextual objects are an "or” relationship.
- the satellite communication system includes user equipment (User Equipment, UE), satellite cell, gateway station, core network and so on.
- the user equipment can establish a user link (Service Link) with the satellite cell.
- a feeder link (Feeder Link) is established between the satellite and the gateway station.
- a satellite cell provides services for user equipment within its own coverage area. Satellite cells are mainly used for communication between user equipment and gateway stations.
- the satellite has two working modes: the first working mode is the transparent transmission and forwarding mode. In the transparent transmission and forwarding mode, the satellite is only used to transparently forward the communication data between the user equipment and the gateway station, and does not process the communication data.
- satellites perform operations such as frequency conversion and wireless signal amplification on uplink/downlink signals, without encoding and decoding.
- the function of the satellite is similar to that of a radio frequency relay; the second working mode is the regenerative communication mode.
- the satellite can detect the information carried by the received signal and process and forward it, which is equivalent to completing the function of the base station. That is, satellites can perform functions such as frequency conversion, wireless signal amplification, encoding/modulation, demodulation/decoding, etc. for uplink/downlink signals. That is to say, the satellite can have all or part of the functions of the base station, and can regenerate the communication signal.
- the satellite communication system can be based on the communication system based on the fourth generation (4th Generation, 4G) mobile communication system (for example, long-term evolution (Long Term Evolution, LTE), advanced long-term evolution system (Advanced Long Term Evolution, LTE-A)), Establishment of the cellular system related to the 3rd Generation Partnership Project (3GPP), the 5th Generation (5G) mobile communication system and the subsequent evolution of the communication system.
- 4G fourth generation
- 4G fourth generation
- LTE long-term evolution
- LTE-A advanced long-term evolution system
- 3GPP 3rd Generation Partnership Project
- 5G 5th Generation
- 5G can also be called new radio (new radio, NR).
- the gateway station can also be called a gateway station, gateway, etc., and it can be set separately from network equipment, such as gNB in 5G, eNB in LTE, or integrated with gNB, eNB, etc.
- the user equipment involved in this embodiment of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. User equipment may also be called terminal equipment.
- the wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via the radio access network (Radio Access Network, RAN), and the wireless terminal equipment can be a mobile terminal equipment, such as a mobile phone (or called a "cellular "telephones) and computers with mobile terminal equipment, such as portable, pocket, hand-held, computer built-in or vehicle-mounted mobile devices, which exchange language and/or data with the radio access network.
- Core Network Core Network
- RAN Radio Access Network
- Wireless terminal equipment can also be called system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point , remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), and user device (user device), which are not limited in this embodiment of the application.
- Satellite cells are further divided into ground-fixed Earth-fixed satellites and ground-moving Earth-moving satellites.
- Earth-Fixed satellite It means that within a certain period of time, the ground coverage area of the service cell of the satellite does not change with the movement of the satellite, that is, the satellite adopts the "staring" mode. The satellite is moving, but at a certain time, the satellite seems to "stare” at a certain area of the ground. Referring to (1) in Figure 2, the satellite moves from time T1 to time T2, and the satellite is always in the ground coverage area A, where T1 and T2 generally have a short time interval.
- Earth-moving satellite means that the ground coverage area of the service cell of the satellite changes with the movement of the satellite. Referring to (2) in FIG. 2 , the coverage area of the satellite is A at time T1 and B at time T2 .
- the current satellite cell provides the service start time of the next satellite cell and the service end time of the current satellite cell to the UE in the coverage area.
- the UE can be selected according to the service start time of the next satellite cell Residential satellite cell.
- the UE can obtain the service start time of the next satellite cell from the current satellite cell, so that it can reside or access the next satellite cell according to the expected time, avoiding invalid cell search and wasting power consumption .
- the coverage area of the next satellite (incoming satellite) cell is not necessarily the same as the coverage area of the current satellite cell. That is, the coverage area of the next satellite cell may not be able to cover all the UEs in the coverage area of the current satellite cell, thus causing UEs not covered by the coverage area of the next satellite cell to fail to camp on the next satellite cell.
- the coverage area of the satellite 1 cell is area A
- the coverage area of the satellite 2 cell is area B
- the area of A is smaller than area B.
- the coverage area of the satellite 1 cell becomes the D area
- the coverage area of the satellite 2 cell becomes the C area.
- the area D is different from the area A, but the size of the coverage area is the same, and the size of the coverage area is smaller than the area B.
- both UE1 and UE2 are within the coverage area (area B) of the satellite 2 cell, while UE1 is at the center of the coverage area of the satellite 2 cell, and UE2 is at the edge of the coverage area of the satellite 2 cell.
- UE1 is located in the coverage area of the satellite 1 cell (area D), but UE2 is not in the coverage area of the satellite 1 cell. Therefore, if both UE1 and UE2 receive the service start time of the satellite 1 cell from the satellite 2 cell at time T1, UE1 can expect the service of the satellite 1 cell at the broadcast time. But for UE2, according to the service start time of the next satellite broadcast by the satellite 2 cell, it is problematic to expect the service start time of the satellite 1 cell, because the coverage area of the satellite 1 cell at the service start time does not include the location of UE1.
- Satellites at different orbital altitudes may have different coverage areas.
- Satellite 2 is a Medium Earth Orbit (MEO)
- Satellite 1 is a Low Earth Orbit (LEO).
- the higher the satellite orbit the larger the ground area that a single satellite can cover. Therefore, the size of the ground coverage area of satellite 2 is generally larger than that of satellite 1 .
- the coverage area of the satellite 1 cell is the A area
- the coverage area of the satellite 2 cell is the B area, but the size of the A area is smaller than the B area.
- the coverage area of the satellite 1 cell becomes the D area
- the coverage area of the satellite 2 cell becomes the C area.
- the area D is different from the area A, but the size of the coverage area is the same, and the size of the coverage area is smaller than the area B.
- UE1 and UE2 in area B can expect different next satellite cells, because when satellite 1 covers area D, UE1 is in area D, and UE2 is not in area D.
- a possible implementation is to broadcast the service start time and corresponding coverage area information of one or more satellite cells in the current satellite cell. Therefore, the UE can determine the next satellite cell to camp on and the start time to camp on according to the service start time of one or more satellite cells and the corresponding coverage area information.
- the total coverage area of one or more satellite cells includes at least the coverage area of the current satellite cell.
- the coverage area of the next satellite cell is the same as the coverage area of the current satellite cell when the service start time is reached.
- broadcasting the coverage area information of one or more satellite cells will bring unnecessary System message overhead, reducing resource utilization.
- the coverage area of the satellite 1 cell is area A
- the coverage area of the satellite 2 cell is area B
- the coverage area of the satellite 1 cell changes to the B area
- the coverage area of the satellite 2 cell changes to the C area. It can be seen from the above that the coverage area of the satellite 1 cell at the time T1 is the same as the coverage area of the satellite 2 cell at the time T2. Therefore, the satellite 2 cell can only broadcast the service start time of the satellite 1 cell to UEs in the coverage area, and all UEs under the coverage of the satellite 2 cell can expect the service of the satellite 1 cell at the same time.
- the embodiment of the present application provides an information transmission method and device, which provides an implementation method of indicating the service start time and coverage area information of the satellite cell to the UE, and prevents the failure of some UEs to camp on the next satellite. Generate unnecessary system message overhead.
- FIG. 6 it is a schematic flowchart of an information transmission method provided by the embodiment of the present application, which mainly includes:
- Step 101 the network device determines the first information, the first information includes the service start time of the first satellite cell or includes the first satellite cell list information; the first satellite cell list information includes the service start time of at least one satellite cell .
- the first satellite cell when the first information includes the service start time of the first satellite cell, the first satellite cell starts to provide services for the user equipments in the service area of the second satellite cell at the service start time.
- the first information includes the first satellite cell list information
- at least one satellite cell in the first satellite cell list information starts to provide at least one user equipment in the service area of the second satellite cell at the corresponding service start time.
- the service area of the second satellite cell is within the ground coverage area of the currently provided service.
- the current service area of the second satellite cell is area A1
- the coverage area of the second satellite cell becomes area B1.
- the user equipment receives the first information when the current service area of the second satellite cell is area A1.
- the first satellite cell starts to provide service for the user equipment in the service area of the second satellite cell at the service start time.
- the first satellite cell provides service for the user equipment in the area A1 at the service start time. That is to say, if the time when the second satellite cell is in the area A1 is the current time, the service start time of the first satellite cell is a future time after the current time.
- Step 102 the network device sends the first information to the user equipment within the service area of the second satellite cell.
- the network device may broadcast the first information through the second satellite cell, or may indicate the first information to the user equipment in the service area of the second satellite cell through other control messages.
- broadcasting of the first information is taken as an example.
- the network device determines that the first coverage area of the first satellite cell in the satellite communication system at least covers the current service area of the second satellite cell, then obtains the service start time of the first satellite cell, and sends the UEs within the current service area of the second satellite cell broadcast the service start time of the first satellite cell.
- the first coverage area is the area covered by the first satellite cell at the service start time. It should be understood that, in this case, the coverage area information of the first satellite cell is no longer broadcast.
- the network device may be a core network device, or a gateway station, or a second satellite cell. This embodiment of the present application does not specifically limit it.
- the first coverage area of the first satellite cell covers at least the current service area of the second satellite cell, it can be understood that the first coverage area of the first satellite cell includes the current service area of the second satellite cell, or the first satellite cell
- the first coverage area of is the same as the current service area of the second satellite cell.
- the first coverage area of the first satellite cell is the same as the current service area of the second satellite cell, and it can also be described as that the first coverage area of the first satellite cell completely overlaps with the current service area of the second satellite cell.
- the first coverage area of the first satellite cell at least covers the current service area of the second satellite cell, and it can also be understood that the first coverage area of the first satellite cell is greater than or equal to the current service area of the second satellite cell.
- the service start time of the current service area covered by the first satellite cell of the second satellite cell is the earliest time that can provide service to the UE among the service start times of each satellite cell included in the satellite communication system.
- the earliest time mentioned here is the time after the start time of the service provided by the second satellite cell.
- multiple satellite cells in the satellite communication system have a time period that can cover the current service area of the second satellite cell.
- the service start time of the second satellite cell is the earliest time of the time period in which the plurality of satellite cells respectively cover the current service area of the second satellite cell.
- the satellite communication system includes two satellite cells that can cover the current service area of the second satellite cell, which are satellite cell 1 and satellite cell 2 respectively.
- Satellite cell 1 covers the current service area of the second satellite cell at time t1
- satellite cell 2 covers the current service area of the second satellite cell at time t2. For example, if t1 ⁇ t2 (eg, t1 arrives first), the network device can broadcast the service start time of satellite cell 1.
- the network device may also broadcast the service start times respectively corresponding to the multiple satellite cells.
- the satellite communication system includes two satellite cells that can cover the current service area of the second satellite cell, which are satellite cell 1 and satellite cell 2 respectively. Satellite cell 1 covers the current service area of the second satellite cell at time t1, and satellite cell 2 covers the current service area of the second satellite cell at time t2.
- the network device may broadcast the service start time of satellite cell 1 and the service start time of satellite cell 2 .
- the network device may also broadcast the service end time of the second satellite cell to UEs in the current service area of the second satellite cell.
- the UE located in the current service area of the second satellite cell can know that the coverage area of the first satellite cell at the service start time covers the second satellite cell that provides the current service of the current service area.
- take UE1 located in the current service area of the second satellite cell as an example.
- the network device determines that the coverage area of the next satellite cell of the second satellite cell cannot cover the current service area of the second satellite cell
- the network device obtains the list information of the first satellite cell, and sends the The UEs within the current service area of the satellite cell broadcast the list information of the satellite cell.
- the coverage area of the next satellite cell of the second satellite cell cannot cover the current service area of the second satellite cell.
- the satellite communication system does not include the coverage area that includes the current service area of the second satellite cell. satellite cell.
- the first satellite cell list information includes the service start time of at least one satellite cell.
- the first satellite cell list information may further include coverage area information of at least one satellite cell.
- the coverage area information may include one or more items of ephemeris information, elevation angle information, or wave velocity information.
- the ephemeris information may include the inclination of the satellite's orbital plane, the right ascension of the ascending node, the semi-major axis of the orbital ellipse, the eccentricity of the orbital ellipse, the angular distance of perigee, and the time of the satellite's anomaly.
- the UE located in the current service area of the second satellite cell can know that the coverage area of each satellite cell in the serving cell list cannot completely cover the current service of the second satellite cell that provides the current service. area.
- take UE1 located in the current service area of the second satellite cell as an example.
- Step 103 UE1 receives the first information, and determines the service start time of the next satellite cell providing service for itself according to the first information.
- UE1 may determine that the time when the first satellite cell provides service for UE1 for the next satellite cell is the service start time of the first satellite cell.
- the next satellite cell providing service for UE1 may also be understood as the next satellite cell where UE1 will camp, or called the next satellite cell (incoming satellite cell).
- the network device broadcasts the service start times of multiple satellite cells including the first satellite cell
- UE1 may select the next one from the multiple satellite cells as its own according to the service start times of the multiple satellite cells
- the satellite cell that provides the service.
- the coverage areas of the plurality of satellite cells including the first satellite cell at the corresponding service start times can all cover the current service area of the second satellite cell.
- the satellite communication system includes two satellite cells that can cover the current service area of the second satellite cell, which are satellite cell 1 and satellite cell 2 respectively. Satellite cell 1 covers the current service area of the second satellite cell at time t1, and satellite cell 2 covers the current service area of the second satellite cell at time t2.
- the network equipment broadcasts the service start time of satellite cell 1 and the service start time of satellite cell 2 . Then UE1 may select a satellite cell from satellite cell 1 and satellite cell 2 as the next satellite cell to provide services for itself.
- the specific selection method is not limited in this application.
- UE1 after UE1 receives the satellite cell list information, it determines the service start time of the next satellite cell provided for UE1 according to the satellite cell list information.
- UE1 may select a satellite cell that can cover its own location as the next satellite cell that provides services for UE1 according to its own location and the coverage area information of at least one satellite cell in the satellite cell list information.
- the service start time of the selected satellite cell is the time of providing service for the UE1.
- determine a third satellite cell that can cover the location of the user equipment from the list information of the first satellite cell the service start time corresponding to the third satellite cell is determined as the service start time of the next satellite cell that provides services for the user equipment.
- the list information of the first satellite cell may be sent in a same information field of a message of the same type.
- the message of the same type is called the first message.
- the first field in the first message carries the service start time of the first satellite cell.
- the first field in the first message carries the first satellite cell list information.
- the first field may also be called a serving cell information field, or may use other names, which are not specifically limited in this embodiment of the present application.
- the first message may be a system message, that is, the serving cell information field may be located in the system message.
- the service start information may be carried in the serving cell information field in the system message.
- the serving cell information field in the system message may also carry the first satellite cell list information. For UE1, if it is determined that the serving cell information field includes only one record, which is a piece of time information, and the time information is parsed from the serving cell information field, then it is determined that the time information recorded in the time information is the next record to provide services for UE1.
- the service start time of the satellite cell in .
- the serving cell information field carries the first satellite cell list information, and then determined according to one or more service start times and coverage area information The service start time of the next satellite cell serving UE1.
- the network device when the network device sends the service start time of the first satellite cell and the list information of the satellite cell, they both send it through a separate information field. For example, it can be sent by different types of messages. It can also be sent through different fields of the same type of message. For example, the message of the same type is called the second message.
- the first information includes the service start time of the first satellite cell
- the second field in the second message carries the service start time of the first satellite cell.
- the third field in the second message carries the first satellite cell list information.
- UE1 acquires the service start time of the first satellite cell from the second field, it determines the service start time of the first satellite cell as the service start time of the next satellite cell. Therefore, if UE1 obtains the first satellite cell list information from the third field, it determines the service start time of the next satellite cell according to the second satellite cell list information.
- the network device may also broadcast a coverage area change indication to the UE.
- the coverage change indication is used to indicate that the coverage area of the next satellite cell of the second satellite cell cannot cover the current service area of the second satellite cell.
- the network device determines that the coverage area of the next satellite cell of the second satellite cell cannot cover the current service area of the second satellite cell
- the network device broadcasts the first satellite cell to UEs in the current service area of the second satellite cell list information, and also broadcast the coverage area change indication. See step 201 shown in FIG. 7 .
- the coverage area change indication is used to inform the UE in the current service area of the second satellite cell that the coverage area of the next satellite cell is different from the coverage area of the currently serving satellite cell.
- the UE can know that the coverage area of the next satellite cell is different from the coverage area of the currently serving satellite cell, and can determine the next one as the one according to the received first satellite cell list information.
- UE1 provides the service start time of the serving satellite cell, see step 202 in FIG. 7 .
- the The UE broadcasts coverage area description information, where the coverage area description information includes coverage start times respectively corresponding to the at least one coverage area, and coverage information of the at least one coverage area at the corresponding coverage start times.
- the network device determines that the coverage area of the next satellite cell of the second satellite cell cannot cover the current service area of the second satellite cell
- the network device broadcasts coverage area description information, see step 301 shown in FIG. 8 .
- the coverage information may include reference point information, or include reference point information and a coverage radius.
- the coverage area can also be expressed in other ways, such as latitude and longitude ranges.
- UE1 in the current service area of the second satellite cell as an example.
- it may determine a second coverage area capable of covering the location of the UE1 and a coverage start time of the second coverage area according to the coverage area description information.
- UE1 determines the next satellite cell to camp on and the service start time of the next satellite cell to camp on according to the first satellite cell list information.
- the coverage area description information may be ignored.
- the next coverage area that can provide services for itself and the corresponding coverage start time may also be determined from the coverage area description information .
- UE1 determines the next satellite cell to camp on and the service start time of the next satellite cell to camp on according to the first satellite cell list information. Then, according to the coverage area description information, the subsequent coverage area that can provide services for itself and the corresponding coverage start time can also be determined.
- the UE can know when there is a coverage area or satellite cell that can provide services for itself, so that unnecessary satellite cell searches can be reduced to reduce waste of resources.
- the network device may report to the current service area of the second satellite cell
- the UE located in the current service area of the second satellite cell can acquire the first satellite cell list information and/or coverage area description information from the received signal according to the coverage area change indication.
- the network device broadcasts the first
- the list information of the second satellite cell may also be broadcasted, for example, refer to step 401 shown in FIG. 9 .
- the second satellite cell list information includes at least one satellite cell whose service start time is earlier than the first satellite cell's service start time. Further, take UE1 in the current service area of the second satellite cell as an example. When UE1 receives the service start time of the first satellite cell, it also receives list information of the second satellite cell.
- the second satellite cell list information includes at least one satellite cell whose service start time is earlier than the first satellite cell's service start time.
- UE1 when UE1 determines that the service start time of the first satellite cell does not meet the residence time requirement, it selects the fourth satellite cell from the list information of the second satellite cell as the next satellite cell to camp on . For example, refer to step 402 in FIG. 9 .
- the coverage area of the fourth satellite cell at the service start time includes the location of the UE, and the service start time of the fourth satellite cell is earlier than the service start time of the first satellite cell.
- the list information of the second satellite cell may be ignored.
- the service start time of the first satellite cell does not meet the dwell time requirement may include that the service end time of the second satellite cell is earlier than the service start time of the first satellite cell.
- UE1 judges whether there is a satellite cell that can cover its location according to the second satellite cell list information, and the service start time of the satellite cell is earlier than the service start time of the first satellite cell. If not, the first satellite cell may be used as the next satellite cell.
- the service start time of the first satellite cell is the time when the service is provided for the UE1.
- the broadcast content is determined according to the relationship between the currently serving satellite cell and the determined coverage area of the next satellite cell, which can reduce unnecessary signaling overhead and improve resource utilization efficiency.
- the UE can analyze the broadcast content according to the broadcast content and its own needs, reduce unnecessary operations, and further reduce UE power consumption.
- the present application also provides an information transmission device, which is applied to network equipment.
- the apparatus includes a determining unit 1001 and a sending unit 1002 . in:
- the determining unit 1001 acquires first information, where the first information includes a service start time of a first satellite cell or first satellite cell list information, where the first satellite cell list information includes a service start time of at least one satellite cell.
- a sending unit 1002 configured to send the first information to user equipments in the current service area of the second satellite cell.
- the first coverage area of the first satellite cell at least covers the service area of the second satellite cell, and the first coverage area is the first coverage area of the first satellite cell at the service start time. the area to start covering; or,
- the first satellite cell list information also includes the coverage area information of the at least one satellite cell at the corresponding service start time, and the service area of the at least one satellite cell list information included in the first satellite cell is different from that of the second satellite cell There is an overlap in the current service areas of .
- the first satellite cell is the earliest satellite cell that can provide services for the user equipment in the satellite communication system to which the network device belongs.
- the first information includes first satellite cell list information
- the sending unit 1002 is further configured to broadcast a coverage area change indication to the user equipment; the coverage area change indication is used to Indicating that the coverage area of the next satellite cell of the second satellite cell in the satellite communication system to which the network device belongs is different from the service area of the second satellite cell.
- the sending unit 1002 is specifically configured to:
- the sending unit 1002 is specifically configured to:
- the first information includes the service start time of the first satellite cell
- the sending unit 1002 is further configured to send the first Two satellite cell list information; wherein, the second satellite cell list information includes the service start time of at least one satellite cell and the coverage area information of the at least one satellite cell; the at least one satellite cell list information included in the second satellite cell The coverage area of the cell overlaps with the service area of the second satellite cell; the list information of the second satellite cell includes at least one satellite cell whose service start time is earlier than the service start time of the first satellite cell.
- the present application also provides an information transmission device, which is applied to user equipment UE, and the UE is located in the current service area of the second satellite cell, as shown in FIG. 11 , the device includes a receiving unit 1101 and a processing Unit 1102;
- the receiving unit 1101 receives first information, where the first information includes service start time of a first satellite cell or first satellite cell list information; the first satellite cell list information includes service start time of at least one satellite cell.
- the processing unit 1102 is configured to determine, according to the first information, a service start time of a next satellite cell that provides services for the user equipment.
- the first information includes the service start time of the first satellite cell
- the processing unit 1102 is specifically configured to determine the service start time of the first satellite cell as the next The service start time of the satellite cell that provides the service for the user equipment.
- the first information includes satellite cell list information
- the first satellite cell list information further includes coverage area information of the at least one satellite cell at a corresponding service start time
- the processing unit 1102. Specifically, according to the location information of the user equipment and the coverage area information of the at least one satellite cell at the corresponding service start time, from the list information of the first satellite cell, determine a third satellite cell that can cover the location of the user equipment. Satellite cell: determining the service start time corresponding to the third satellite cell as the service start time of the next satellite cell that provides services for the user equipment.
- the first satellite cell is the earliest satellite cell that can provide services for the user equipment in the satellite communication system to which the user equipment belongs.
- the receiving unit 1101 is further configured to determine that the service start time corresponding to the third satellite cell is before the service start time of the next satellite cell that provides services for the user equipment receiving a coverage area change indication broadcast by a network device, where the coverage area change indication is used to indicate that the coverage area of the next satellite cell of the second satellite cell in the satellite communication system to which the user equipment belongs is different from the coverage area of the second satellite cell service areas vary.
- the receiving unit 1101 is specifically configured to receive a first message, and the processing unit 1102 acquires the first information from a first field of the first message.
- the receiving unit 1101 receives the second message, and the processing unit 1102 acquires the service start time of the first satellite cell from the second field of the second message; or,
- the receiving unit 1101 receives the second message
- the processing unit 1102 receives the second message from the second field of the second message Obtain information about the first satellite cell list.
- the receiving unit 1101 is further configured to receive the second satellite cell list information when receiving the service start time of the first satellite cell; the second satellite cell list The information includes the service start time of at least one satellite cell and the coverage area information of the at least one satellite cell; the coverage area of the at least one satellite cell included in the second satellite cell list information and the service area of the second satellite cell exist Overlap; the first satellite cell list information includes at least one satellite cell whose service start time is earlier than the first satellite cell’s service start time; when the processing unit 1102 determines that the first satellite cell’s service start time does not satisfy When the dwell time is required, select a fourth satellite cell from the second serving cell list as the next satellite cell that provides services for the user equipment; wherein, the coverage area of the fourth satellite cell at the service start time includes The user equipment is located and the service start time of the fourth satellite cell is earlier than the service start time of the first satellite cell.
- the embodiment of the present application also provides a network device.
- the network device can execute the information transmission method implemented by the network device in any of the foregoing embodiments.
- FIG. 12 shows a schematic structural diagram of the network device provided by the embodiment of the present application, that is, shows another schematic structural diagram of the network device.
- the network device includes a processor 1201 , a memory 1202 and a transceiver 1203 .
- the processor 1201 is responsible for managing the bus architecture and general processing, and the memory 1202 can store data used by the processor 1201 when performing operations.
- the transceiver 1203 is used to receive and transmit data under the control of the processor 1201 .
- the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 1201 and various circuits of the memory represented by the memory 1202 are linked together.
- the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, all of which are well known in the art and therefore will not be further described herein.
- the bus interface provides the interface.
- the processor 1201 is responsible for managing the bus architecture and general processing, and the memory 1202 can store data used by the processor 1201 when performing operations.
- the processes disclosed in the embodiments of the present application may be applied to the processor 1201 or implemented by the processor 1201 .
- each step of the signal processing flow may be completed by an integrated logic circuit of hardware in the processor 1201 or instructions in the form of software.
- the processor 1201 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may realize or execute the The disclosed methods, steps and logical block diagrams.
- a general purpose processor may be a microprocessor or any conventional processor or the like.
- the steps of the methods disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.
- the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
- the storage medium is located in the memory 1202, and the processor 1201 reads the information in the memory 1202, and completes the steps of the signal processing process in combination with its hardware.
- the processor 1201 is configured to read the computer program in the memory 1202, and when the processor 1201 executes the computer program, implements the steps implemented by the network device in any one of the embodiments in FIG. 6 to FIG. 9 .
- the processor 1201 executes the computer program, implements the steps implemented by the network device in any one of the embodiments in FIG. 6 to FIG. 9 .
- the processor 1201 executes the computer program, implements the steps implemented by the network device in any one of the embodiments in FIG. 6 to FIG. 9 .
- the processor 1201 is configured to determine first information, where the first information includes the service start time of the first satellite cell or includes first satellite cell list information; the first satellite cell list information includes at least one satellite cell Service start time: sending the first information to the user equipment in the current service area of the second satellite cell through the transceiver 1203 .
- the embodiment of the present application also provides a user equipment.
- the user equipment can execute the information transmission method implemented by the user equipment in any of the foregoing embodiments.
- FIG. 13 shows a schematic structural diagram of the user equipment provided by the embodiment of the present application, that is, shows another schematic structural diagram of the user equipment.
- the user equipment includes a processor 1301, a memory 1302, and a transceiver 1303.
- the processor 1301 is responsible for managing the bus architecture and general processing, and the memory 1302 can store data used by the processor 1301 when performing operations.
- the transceiver 1303 is used to receive and transmit data under the control of the processor 1301 .
- the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 1301 and various circuits of the memory represented by the memory 1302 are linked together.
- the bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein.
- the bus interface provides the interface.
- the processor 1301 is responsible for managing the bus architecture and general processing, and the memory 1302 can store data used by the processor 1301 when performing operations.
- the processes disclosed in the embodiments of the present application may be applied to the processor 1301 or implemented by the processor 1301 .
- each step of the signal processing flow may be completed by an integrated logic circuit of hardware in the processor 1301 or instructions in the form of software.
- the processor 1301 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may realize or execute the The disclosed methods, steps and logical block diagrams.
- a general purpose processor may be a microprocessor or any conventional processor or the like.
- the steps of the methods disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.
- the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
- the storage medium is located in the memory 1302, and the processor 1301 reads the information in the memory 1302, and completes the steps of the signal processing process in combination with its hardware.
- the processor 1301 is configured to read the computer program in the memory 1302, and when the processor 1301 executes the computer program, implement the steps implemented by the user equipment in any one of the embodiments in FIG. 4-FIG. 9 .
- the processor 1301 executes the computer program, implement the steps implemented by the user equipment in any one of the embodiments in FIG. 4-FIG. 9 .
- the processor 1301 executes the computer program, implement the steps implemented by the user equipment in any one of the embodiments in FIG. 4-FIG. 9 .
- the processor 1301 is configured to receive the first information through the transceiver 1303, the first information includes the service start time of the first satellite cell or includes the first satellite cell list information; the first satellite cell list information includes at least A service start time of a satellite cell; determining a service start time of a next satellite cell that provides services for the user equipment according to the first information.
- the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
- computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
- These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions
- the device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.
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Abstract
本申请提供一种信息传输方法、装置及介质,在减少功耗浪费的同时,防止用户设备驻留小区失败。用户设备接收第一卫星小区的服务开始时间,将所述第一卫星小区的服务开始时间确定为下一个为所述用户设备提供服务的卫星小区的服务开始时间。或者,接收第一卫星小区列表信息,第一卫星小区列表信息中包括至少一个卫星小区的服务开始时间,还可以包括至少一个卫星小区的覆盖区域信息,从第一卫星小区列表信息获取能够覆盖自身所在位置的卫星小区,将该卫星小区的服务开始时间作为下一个卫星小区的服务开始时间。通过接收到的内容确定不同的执行操作,可以减少不必要的信令开销,提高资源利用效率。
Description
相关申请的交叉引用
本申请要求在2022年01月06日提交中国专利局、申请号为202210010802.5、申请名称为“一种信息传输方法、装置及介质”的中国专利申请的优先权,其全部内容通过引用结合在本申请中;本申请要求在2022年12月22日提交中国专利局、申请号为202211656015.4、申请名称为“一种信息传输方法、装置及介质”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及通信技术领域,尤其涉及一种信息传输方法、装置及介质。
为了实现全球覆盖,低轨卫星通信系统一般需要大量卫星组成星座系统,从而整个星座系统为用户设备(User Equipment,UE)提供服务。由于卫星具有移动性,为了防止UE进行无效的卫星小区搜索而浪费功耗,可以向UE提供下一个(incoming)卫星小区的服务开始时间和当前卫星小区的服务结束时间。但是不同的卫星在地面的覆盖区域可能会不同,可能会导致UE接收到的下一个卫星小区服务开始时间后,在对应的下一个卫星小区服务开始时间,该下一个卫星小区的覆盖范围未覆盖到该UE所在位置,从而导致该UE驻留该下一个卫星小区失败。
发明内容
本申请提供一种信息传输方法、装置及介质,在减少功耗浪费的同时,防止用户设备驻留小区失败。
第一方面,本申请实施例提供一种信息传输方法,应用于用户设备,所述用户设备位于第二卫星小区的服务区域内,包括:
接收第一信息,所述第一信息包括第一卫星小区的服务开始时间或者包括第一卫星小区列表信息;所述第一卫星小区列表信息包括至少一个卫星小区的服务开始时间;根据所述第一信息确定下一个为所述用户设备提供服务的卫星小区的服务开始时间。
上述方案中,根据接收到信息内容来确定下一个为所述用户设备提供服务的卫星小区的服务开始时间,不同的信息内容确定的服务开始时间不同,即不同的情况下,通过不同的方式来确定服务开始时间,可以减少不必要的信令开销,提高资源利用率。
在一种可能的实现方式中,所述第一信息包括第一卫星小区的服务开始时间时,第一卫星小区在所述服务开始时间开始为第二卫星小区的服务区域内的用户设备提供服务。所述第一信息包括第一卫星小区列表信息时,第一卫星小区列表信息中至少一个卫星小区在对应的服务开始时间开始为所述第二卫星小区的服务区域内的至少一个用户设备提供服务。
应理解的是,本申请实施例中第二卫星小区的服务区域在当前提供的服务的地面覆盖区域。比如,第二卫星小区的当前服务区域为区域A1,如果下一时刻,由于第二卫星小区发生移动,则第二卫星小区的覆盖区域变成了区域B1。用户设备在第二卫星小区的当前服务区域为区域A1时,接收到第一信息。则第一卫星小区在服务开始时间开始为第二卫星小区的服务区域内的用户设备提供服务,可以理解为,第一卫星小区在服务开始时间为区域A1内的用户设备提供服务。也就是说第二卫星小区在区域A1时的时刻是当前时刻的话,第一卫星小区的服务开始时间是当前时刻后的未来时间。
第一卫星小区在服务开始时间开始为第二卫星小区的服务区域内的用户设备提供服务,也可以理解为,第一卫星小区在服务开始时间的覆盖区域能够覆盖第二卫星小区的当前服务区域。
在一种可能的实现方式中,所述第一信息包括第一卫星小区的服务开始时间,所述根据所述第一信息确定下一个为所述用户设备提供服务的卫星小区的服务开始,包括:将所述第一卫星小区的服务开始时间确定为下一个为 所述用户设备提供服务的卫星小区的服务开始时间。
在一种可能的实现方式中,所述第一信息包括卫星小区列表信息,所述卫星小区列表还包括所述至少一个卫星小区在对应服务开始时间的覆盖区域信息,所述根据所述第一信息确定下一个为所述用户设备提供服务的卫星小区的服务开始时间,包括:根据所述用户设备的位置信息、所述至少一个卫星小区在对应服务开始时间的覆盖区域信息从所述第一卫星小区列表信息确定能够覆盖所述用户设备所在位置的第三卫星小区;将所述第三卫星小区对应的服务开始时间确定为下一个为所述用户设备提供服务的卫星小区的服务开始时间。
在一种可能的实现方式中,所述第一卫星小区为所述用户设备所属的卫星通信系统中最早能为所述用户设备提供服务的卫星小区。
上述实现方式中,选择能够提供最早服务的卫星小区发送给用户设备,即使在非连续通信场景中,也能够减少用户设备中断通信的时间。
在一种可能的实现方式中,将所述第三卫星小区对应的服务开始时间确定为下一个为所述用户设备提供服务的卫星小区的服务开始时间之前,所述方法还包括:接收覆盖区域变更指示,所述覆盖区域变更指示用于指示所述用户设备所属的卫星通信系统中所述下一个卫星小区的覆盖区域与所述第二卫星小区的服务区域不同。
上述实现方式中,提供覆盖区域变更指示,从而用户设备直接根据卫星小区列表信息来确定下一个卫星小区的服务开始时间。
在一种可能的实现方式中,所述第一信息包括第一卫星小区的服务开始时间,所述方法还包括:
接收第二卫星小区列表信息,所述第二卫星小区列表信息包括至少一个卫星小区的服务开始时间以及所述至少一个卫星小区的覆盖区域信息;所述第二卫星小区列表信息包括的至少一个卫星小区的覆盖区域与所述第二卫星小区的服务区域存在重叠;所述第一卫星小区列表信息中至少包括一个卫星小区的服务开始时间早于所述第一卫星小区的服务开始时间;
在确定所述第一卫星小区的服务开始时间不满足驻留时间需求时,从所述第二服务小区列表中选择第四卫星小区作为下一个为所述用户设备提供服务的卫星小区;
其中,所述第四卫星小区在服务开始时间的覆盖区域包括所述用户设备所在的位置且所述第四卫星小区的服务开始时间早于所述第一卫星小区的服务开始时间。
通过上述实现方式中,用户设备可以根据驻留时间需求来确定下一个卫星小区以及服务开始时间。
在一种可能的实现方式中,所述方法还包括:
接收覆盖区域描述信息;
其中,所述覆盖区域描述信息包括所述至少一个覆盖区域分别对应的覆盖开始时间,以及所述至少一个覆盖区域在对应的覆盖开始时间的覆盖范围信息;
根据所述覆盖区域描述信息确定能够覆盖所述用户设备所在位置的第二覆盖区域以及所述第二覆盖区域的覆盖开始时间。
在一种可能的实现方式中,所述覆盖区域描述信息包括的任一覆盖区域的覆盖范围与所述第二卫星小区的当前服务区域有重叠。
在一种可能的实现方式中,所述覆盖范围信息包括参考点信息,或者包括参考点信息和覆盖半径。
第二方面,本申请提供一种信息传输方法,应用于网络设备,包括:
确定第一信息,所述第一信息包括第一卫星小区的服务开始时间或者包括第一卫星小区列表信息,所述第一卫星小区列表信息包括至少一个卫星小区的服务开始时间;
向第二卫星小区的当前服务区域内的UE发送所述第一信息。
上述方案中,根据获取的信息内容,向用户设备广播不同的信息内容,可以减少不必要的信令开销,提高资源利用效率。
在一种可能的实现方式中,所述第一卫星小区的第一覆盖区域至少覆盖 第二卫星小区的服务区域,所述第一覆盖区域是所述第一卫星小区在所述服务开始时间所开始覆盖的区域;或者,所述第一卫星小区列表信息还包括所述至少一个卫星小区在对应服务开始时间的覆盖区域信息,所述第一卫星小区列表信息包括的至少一个卫星小区的服务区域与所述第二卫星小区的当前服务区域存在重叠。
上述方案,通过获取的第一信息的内容,即当前服务的卫星小区与所确定的下一个卫星小区的覆盖区域的关系,来广播第一信息的内容,可以减少不必要的信令开销,提高资源利用效率。用户设备可以根据广播内容以及自身需求来解析广播的内容,减少不必要的操作,进而减低用户设备功耗。
在一种可能的实现方式中,所述第一卫星小区为所述网络设备所属的卫星通信系统中最早能为所述用户设备提供服务的卫星小区。
上述实现方式中,选择能够提供最早服务的卫星小区广播给用户设备,即使在非连续通信场景中,也能够减少用户设备中断通信的时间。
在一种可能的实现方式中,所述第一信息包括第一卫星小区列表信息,所述方法还包括:向所述用户设备广播覆盖区域变更指示;所述覆盖区域变更指示用于指示所述网络设备所属的卫星通信系统中所述第二卫星小区的下一个卫星小区的覆盖区域与所述第二卫星小区的服务区域不同。
上述实现方式中,提供覆盖区域变更指示,从而用户设备直接根据卫星小区列表信息来确定下一个卫星小区的服务开始时间。
在一种可能的实现方式中,所述第一信息包括第一卫星小区列表信息,所述方法还包括:
向所述用户设备广播覆盖区域描述信息,所述覆盖区域描述信息包括所述至少一个覆盖区域分别对应的覆盖开始时间,以及所述至少一个覆盖区域在对应的覆盖开始时间的覆盖范围信息。
通过上述实现方式,用户设备可以知晓在什么时间存在能够为自身提供服务的覆盖区域或者卫星小区,从而可以减少不必要的卫星小区搜索,以减少资源浪费。
在一种可能的实现方式中,所述覆盖区域描述信息包括的任一覆盖区域的覆盖范围与所述第二卫星小区的当前服务区域有重叠。
在一种可能的实现方式中,所述覆盖范围信息包括参考点信息和/或覆盖半径。
在一种可能的实现方式中,所述第一信息包括第一卫星小区的服务开始时间,所述方法还包括:
向所述第二卫星小区的当前服务区域内的所述用户设备发送第二卫星小区列表信息;
其中,所述第二卫星小区列表信息包括至少一个卫星小区的服务开始时间以及所述至少一个卫星小区的覆盖区域信息;所述第二卫星小区列表信息包括的至少一个卫星小区的覆盖区域与所述第二卫星小区的服务区域存在重叠;所述第一卫星小区列表信息中至少包括一个卫星小区的服务开始时间早于所述第一卫星小区的服务开始时间。
通过上述实现方式中,用户设备可以根据驻留时间需求来确定下一个卫星小区以及服务开始时间。
在一种可能的实现方式中,向所述第二卫星小区的当前服务区域内的用户设备发送所述第一信息,包括:
向所述第二卫星小区的服务区域内的用户设备发送第一消息,所述第一消息中的第一字段承载所述第一卫星小区的服务开始时间;或者,
向所述第二卫星小区的服务区域内的用户设备发送第一消息,所述第一消息中的第一字段承载所述第一卫星小区列表信息。
上述实现方式中,第一卫星小区列表以及第一卫星小区的服务开始时间复用同一种消息的同一字段。应理解的是,第一卫星小区列表信息以及第一卫星小区的服务开始时间不会同时发送。一些情况下,需要发送第一卫星小区列表,通过该第一字段发送第一卫星小区列表。另一些情况下,需要发送第一卫星小区的服务开始时间时,通过该第一字段发送第一卫星小区的服务开始时间。
在一种可能的实现方式中,向所述第二卫星小区的当前服务区域内的UE发送所述第一信息,包括:
向所述第二卫星小区的服务区域内的用户设备发送第二消息,所述第二消息中的第二字段承载所述第一卫星小区的服务开始时间;或者,
向所述第二卫星小区的服务区域内的用户设备发送第二消息,所述第二消息中的第三字段承载所述第一卫星小区列表信息。
上述实现方式中,第一卫星小区列表以及第一卫星小区的服务开始时间通过同一种消息的不同字段发送。一些情况下,需要发送第一卫星小区列表,通过该第三字段发送第一卫星小区列表。另一些情况下,需要发送第一卫星小区的服务开始时间时,通过该第二字段发送第一卫星小区的服务开始时间。
第三方面,本申请实施例提供一种用户设备,所述用户设备UE位于第二卫星小区的当前服务区域内,所述装置包括收发机和处理器:
所述处理器,用于通过所述收发机接收第一信息,所述第一信息包括第一卫星小区的服务开始时间或者包括第一卫星小区列表信息;所述第一卫星小区列表信息包括至少一个卫星小区的服务开始时间;根据所述第一信息确定下一个为所述用户设备提供服务的卫星小区的服务开始时间。
在一种可能的实现方式中,所述第一信息包括第一卫星小区的服务开始时间,所述处理器,具体用于:
将所述第一卫星小区的服务开始时间确定为下一个为所述用户设备提供服务的卫星小区的服务开始时间。
在一种可能的实现方式中,所述第一信息包括卫星小区列表信息,所述卫星小区列表还包括所述至少一个卫星小区在对应服务开始时间的覆盖区域信息,所述处理器,具体用于:
根据所述用户设备的位置信息、所述至少一个卫星小区在对应服务开始时间的覆盖区域信息从所述第一卫星小区列表信息确定能够覆盖所述用户设备所在位置的第三卫星小区;
将所述第三卫星小区对应的服务开始时间确定为下一个为所述用户设备 提供服务的卫星小区的服务开始时间。
在一种可能的实现方式中,所述第一卫星小区为所述用户设备所属的卫星通信系统中最早能为所述用户设备提供服务的卫星小区。
在一种可能的实现方式中,所述处理器,还用于:将所述第三卫星小区对应的服务开始时间确定为下一个为所述用户设备提供服务的卫星小区的服务开始时间之前,通过所述收发机接收覆盖区域变更指示,所述覆盖区域变更指示用于指示所述用户设备所属的卫星通信系统中下一个卫星小区的覆盖区域与所述第二卫星小区的服务区域不同。
在一种可能的实现方式中,所述处理器,具体用于:
通过所述收发机接收第一消息,从所述第一消息的第一字段获取所述第一信息。
在一种可能的实现方式中,所述处理器,具体用于:
通过所述收发机接收第二消息,从所述第二消息的第二字段获取所述第一卫星小区的服务开始时间;或者,
通过所述收发机接收第二消息,从所述第二消息的第二字段获取所述第一卫星小区列表信息。
在一种可能的实现方式中,所述第一信息包括第一卫星小区的服务开始时间,所述收发机,还用于接收第二卫星小区列表信息,所述第二卫星小区列表信息包括至少一个卫星小区的服务开始时间以及所述至少一个卫星小区的覆盖区域信息;所述第二卫星小区列表信息包括的至少一个卫星小区的覆盖区域与所述第二卫星小区的服务区域存在重叠;所述第一卫星小区列表信息中至少包括一个卫星小区的服务开始时间早于所述第一卫星小区的服务开始时间;
所述处理器,还用于在确定所述第一卫星小区的服务开始时间不满足驻留时间需求时,从所述第二服务小区列表中选择第四卫星小区作为下一个为所述用户设备提供服务的卫星小区;
其中,所述第四卫星小区在服务开始时间的覆盖区域包括所述用户设备 所在的位置且所述第四卫星小区的服务开始时间早于所述第一卫星小区的服务开始时间。
第四方面,本申请实施例提供一种网络设备,包括收发机和处理器;
所述处理器,用于确定第一信息,所述第一信息包括第一卫星小区的服务开始时间或者包括第一卫星小区列表信息,所述第一卫星小区列表信息包括至少一个卫星小区的服务开始时间;
通过所述收发机向第二卫星小区的当前服务区域内的用户设备发送所述第一信息。
在一种可能的实现方式中,所述第一卫星小区的第一覆盖区域至少覆盖第二卫星小区的服务区域,所述第一覆盖区域是所述第一卫星小区在所述服务开始时间所开始覆盖的区域;或者,
所述第一卫星小区列表信息还包括所述至少一个卫星小区在对应服务开始时间的覆盖区域信息,所述第一卫星小区列表信息包括的至少一个卫星小区的服务区域与所述第二卫星小区的当前服务区域存在重叠。
在一种可能的实现方式中,所述第一卫星小区为所述网络设备所属的卫星通信系统中最早能为所述用户设备提供服务的卫星小区。
在一种可能的实现方式中,所述第一信息包括第一卫星小区列表信息,所述处理器,还用于:控制所述收发机向所述UE广播覆盖区域变更指示;所述覆盖区域变更指示用于指示所述网络设备所属的卫星通信系统中下一个卫星小区的覆盖区域与所述第二卫星小区的服务区域不同。
在一种可能的实现方式中,所述处理器,具体用于:
通过所述收发机向所述第二卫星小区的服务区域内的用户设备发送第一消息,所述第一消息中的第一字段承载所述第一卫星小区的服务开始时间;或者,
通过所述收发机向所述第二卫星小区的服务区域内的用户设备发送第一消息,所述第一消息中的第一字段承载所述第一卫星小区列表信息。
在一种可能的实现方式中,所述处理器,具体用于:
通过所述收发机向所述第二卫星小区的服务区域内的用户设备发送第二消息,所述第二消息中的第二字段承载所述第一卫星小区的服务开始时间;或者,
通过所述收发机向所述第二卫星小区的服务区域内的用户设备发送第二消息,所述第二消息中的第三字段承载所述第一卫星小区列表信息。
在一种可能的实现方式中,所述第一信息包括第一卫星小区的服务开始时间,所述处理器,还用于:
通过所述收发机向所述第二卫星小区的当前服务区域内的所述用户设备发送第二卫星小区列表信息;
其中,所述第二卫星小区列表信息包括至少一个卫星小区的服务开始时间以及所述至少一个卫星小区的覆盖区域信息;所述第二卫星小区列表信息包括的至少一个卫星小区的覆盖区域与所述第二卫星小区的服务区域存在重叠;所述第一卫星小区列表信息中至少包括一个卫星小区的服务开始时间早于所述第一卫星小区的服务开始时间。
第五方面,本申请提供一种信息传输装置,应用于用户设备,所述用户设备位于第二卫星小区的服务区域内,包括:
接收单元,用于接收第一信息,所述第一信息包括第一卫星小区的服务开始时间或者包括第一卫星小区列表信息;所述第一卫星小区列表信息包括至少一个卫星小区的服务开始时间;
处理单元,用于根据所述第一信息确定下一个为所述用户设备提供服务的卫星小区的服务开始时间。
第六方面,本申请提供一种信息传输装置,应用于网络设备,包括:
确定单元,用于确定第一信息,所述第一信息包括第一卫星小区的服务开始时间或者包括第一卫星小区列表信息,所述第一卫星小区列表信息包括至少一个卫星小区的服务开始时间;
发送单元,用于向所述第二卫星小区的当前服务区域内的用户设备发送所述第一信息。
第七方面,本申请提供一种计算机可读存储介质,所述存储介质存储有计算机指令,所述计算机指令被处理器执行时实现第一方面中任一实现方式所述的方法。
第八方面,本申请提供一种计算机可读存储介质,所述存储介质存储有计算机指令,所述计算机指令被处理器执行时实现第二方面中任一实现方式所述的方法。
第九方面,本申请实施例提供了一种计算机程序产品,所述计算机程序产品包括:计算机程序代码,当所述计算机程序代码并运行时,使得上述第一方面中由网络设备执行的方法被执行,或使得上述第二方面中由用户设备执行的方法被执行。
上述第二方面至第九方面的有益效果可以参见第一方面的相关描述,后续不再赘述。
为了更清楚地说明本申请实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍。
图1为本申请实施例提供的卫星通信系统架构示意图;
图2为本申请实施例提供的Earth-fixed卫星以及Earth-moving卫星示意图;
图3为本申请实施例提供的一种卫星的覆盖情况示意图;
图4为本申请实施例提供的另一种卫星的覆盖情况示意图;
图5为本申请实施例提供的又一种卫星的覆盖情况示意图;
图6为本申请实施例提供的一种信息传输方法流程示意图;
图7为本申请实施例提供的另一种信息传输方法流程示意图;
图8为本申请实施例提供的又一种信息传输方法流程示意图;
图9为本申请实施例提供的又一种信息传输方法流程示意图;
图10为本申请实施例提供的一种信息传输装置结构示意图;
图11为本申请实施例提供的另一种信息传输装置结构示意图;
图12为本申请实施例提供的网络设备结构示意图;
图13为本申请实施例提供的用户设备结构示意图。
为了使本申请的目的、技术方案和优点更加清楚,下面将结合附图对本申请作进一步地详细描述,显然,所描述的实施例仅仅是本申请一部份实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例,都属于本申请保护的范围。
需要说明的是,本申请实施例中的“第一”、“第二”用于区别类似的对象,而不是用于描述特定的顺序或先后次序。本申请实施例中的“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
参见图1所示为一种可能的卫星通信系统架构示意图。卫星通信系统中包括用户设备(User Equipment,UE)、卫星小区、信关站以及核心网等等。用户设备可以与卫星小区之间建立用户链路(Service Link)。卫星与信关站之间建立馈电链路(Feeder Link)。卫星小区为自身覆盖区域内的用户设备提供服务。卫星小区主要用于用户设备与信关站之间的通信。卫星存在两种工作模式:第一种工作模式为透传转发模式,在透传转发模式下,卫星仅用于透明转发用户设备与信关站之间的通信数据,不对通信数据进行处理。可以理解为卫星对上行/下行信号进行频率转换、无线信号放大等操作,不进行编解码。此时卫星的功能类似于射频中继;第二种工作模式为再生通信模式,此时卫星可以检测接收信号承载的信息并进行处理转发,相当于完成了基站的功能。即卫星可以对上行/下行信号执行频率变换、无线信号放大、编码/调制、解调/译码等功能。也就是说卫星可以具有基站的全部或者部分功能,可以对通信 信号进行再生。
卫星通信系统可以基于通信系统基于第四代(4th Generation,4G)移动通信系统(例如,长期演进(Long Term Evolution,LTE)、先进的长期演进系统(Advanced Long Term Evolution,LTE-A))、第三代合作伙伴计划(3rd Generation Partnership Project,3GPP)相关的蜂窝系统、第五代(5th Generation,5G)移动通信系统以及后续演进的通信系统建立。其中,5G还可以被称为新无线(new radio,NR)。
本申请实施例中,信关站也可以称之为关口站、gateway等,其可以和网络设备,如5G中的gNB、LTE中的eNB分开设置,也可以与gNB、eNB等集成设置。
本申请实施例涉及的用户设备,可以是指向用户提供语音和/或数据连通性的设备,具有无线连接功能的手持式设备、或连接到无线调制解调器的其他处理设备等。用户设备也可以称为终端设备。无线终端设备可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网(Core Network,CN)进行通信,无线终端设备可以是移动终端设备,如移动电话(或称为“蜂窝”电话)和具有移动终端设备的计算机,例如,可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与无线接入网交换语言和/或数据。例如,个人通信业务(Personal Communication Service,PCS)电话、无绳电话、会话发起协议(Session Initiated Protocol,SIP)话机、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)等设备。无线终端设备也可以称为系统、订户单元(subscriber unit)、订户站(subscriber station),移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点(access point)、远程终端设备(remote terminal)、接入终端设备(access terminal)、用户终端设备(user terminal)、用户代理(user agent)、用户装置(user device),本申请实施例中并不限定。
卫星小区又分为地面固定Earth-fixed卫星和地面移动Earth-moving卫星两类。Earth-Fixed卫星:是指在一定时间内,卫星的服务小区的地面覆盖区 域并不随着卫星的移动而变化,也就是卫星采用“凝视”模式。卫星在移动,但是,在一定时间内,卫星类似“凝视”着地面的一定区域。参见图2中(1)所示,卫星从T1时刻移动到T2时刻,卫星始终在地面覆盖区域始终是A,其中T1与T2一般间隔较短的时间。Earth-moving卫星是指卫星的服务小区的地面覆盖区域随着卫星的移动而变化。参见图2中(2)所示,卫星的覆盖区域在T1时刻为A,在T2时刻为B。
如背景技术所述,当前卫星小区向覆盖区域内的UE提供下一个卫星小区的服务开始时间和当前卫星小区的服务结束时间,对于UE来说,可以根据下一个卫星小区的服务开始时间来选择驻留的卫星小区。尤其对于非连续覆盖场景,使得UE从当前卫星小区获取下一个卫星小区的服务开始时间,从而可以按照预期的时间驻留或者接入到下一个卫星小区,避免做无效的小区搜索,浪费功耗。由于卫星的移动性,导致在一些场景中,下一个卫星(incoming卫星)小区的覆盖区域与当前卫星小区的覆盖区域不一定相同。即下一个卫星小区的覆盖区域可能无法覆盖到当前卫星小区的覆盖区域内的所有UE,进而导致下一个卫星小区的覆盖范围未覆盖到的UE驻留该下一个卫星小区失败。
比如,参见图3所示,在T1时刻,卫星1小区的覆盖区域为A区域,卫星2小区的覆盖区域为B区域,但是A区域的范围大小小于B区域。在T2时刻,卫星1小区的覆盖区域变为D区域,卫星2小区的覆盖区域变为C区域。其中,D区域与A区域不同,但是覆盖范围大小相同,并且覆盖范围大小都小于B区域。例如,T1时刻,UE1和UE2均在卫星2小区的覆盖区域(B区域)内,而UE1在卫星2小区的覆盖区域中心,UE2在卫星2小区的覆盖区域边缘。而在T2时刻,UE1位于卫星1小区的覆盖区域(D区域),而UE2却不在卫星1小区的覆盖区域。因此,如果在T1时刻,UE1和UE2都从卫星2小区接收到卫星1小区的服务开始时间,而对于UE1而言,可以在广播的时间预期卫星1小区的服务。但是对于UE2,根据卫星2小区广播的下一个卫星的服务开始时间,预期卫星1小区的服务开始时间是有问题的, 因为卫星1小区在该服务开始时间的覆盖区域不包括UE1所在位置。
在一些可能的场景中,不同轨道高度的卫星的覆盖区域范围大小可能不同。比如参见图4所示,卫星2是中轨卫星(Medium Earth Orbit,MEO),卫星1是低轨卫星(Low Earth Orbit,LEO)。一般的,卫星轨道越高,单个卫星可以覆盖的地面区域更大。所以,卫星2的地面覆盖区域大小一般比卫星1的地面覆盖区域大。在T1时刻,卫星1小区的覆盖区域为A区域,卫星2小区的覆盖区域为B区域,但是A区域的范围大小小于B区域。在T2时刻,卫星1小区的覆盖区域变为D区域,卫星2小区的覆盖区域变为C区域。其中,D区域与A区域不同,但是覆盖范围大小相同,并且覆盖范围大小都小于B区域。在T1时刻,B区域的UE1和UE2可以期望的下一个卫星小区是不同的,因为在卫星1覆盖区域为D区域的时候,UE1在D区域内,UE2不在D区域内。
为解决上述问题,一种可能的实现方式是,在当前卫星小区广播一个或者多个卫星小区的服务开始时间以及相应的覆盖区域信息。从而UE能够根据一个或者多个卫星小区的服务开始时间以及相应的覆盖区域信息确定下一个驻留的卫星小区以及能够驻留的起始时间。示例性地,一个或者多个卫星小区的总覆盖区域至少包括所述当前卫星小区的覆盖区域。
但是一些可能场景中,下一个卫星小区的覆盖区域在达到服务开始时间的时候与当前卫星小区的覆盖区域相同,在该情况下广播一个或者多个卫星小区的覆盖区域信息,会带来不必要的系统消息开销,降低资源利用率。
例如,参见图5所示,在T1时刻,卫星1小区的覆盖区域为A区域,卫星2小区的覆盖区域为B区域。在T2时刻,卫星1小区的覆盖区域变化为B区域,卫星2小区的覆盖区域变化为C区域。从上可以看出,卫星1小区在T1时刻的覆盖区域与卫星2小区在T2时刻的覆盖区域相同。因此卫星2小区可以仅向覆盖区域内的UE广播卫星1小区的服务开始时间即可,卫星2小区覆盖下的UE都可以在同样的时间预期卫星1小区的服务。
因此,如何向UE指示卫星小区的服务开始时间和覆盖区域信息,值得讨 论。
基于此,本申请实施例提供一种信息传输方法及装置,提供向UE指示卫星小区的服务开始时间和覆盖区域信息的实现方式,在解决某些UE驻留下一个卫星失败的情况下,防止产生不必要的系统消息开销。
参见图6所示,为本申请实施例提供的一种信息传输方法流程示意图,主要包括:
步骤101,网络设备确定第一信息,所述第一信息包括第一卫星小区的服务开始时间或者包括第一卫星小区列表信息;所述第一卫星小区列表信息包括至少一个卫星小区的服务开始时间。
示例性地,所述第一信息包括第一卫星小区的服务开始时间时,第一卫星小区在所述服务开始时间,开始为第二卫星小区的服务区域内的用户设备提供服务。所述第一信息包括第一卫星小区列表信息时,第一卫星小区列表信息中至少一个卫星小区在对应的服务开始时间,开始为所述第二卫星小区的服务区域内的至少一个用户设备提供服务。
应理解的是,本申请实施例中第二卫星小区的服务区域在当前提供的服务的地面覆盖区域。比如,第二卫星小区的当前服务区域为区域A1,如果下一时刻,由于第二卫星小区发生移动,则第二卫星小区的覆盖区域变成了区域B1。用户设备在第二卫星小区的当前服务区域为区域A1时,接收到第一信息。则第一卫星小区在服务开始时间开始为第二卫星小区的服务区域内的用户设备提供服务,可以理解为,第一卫星小区在服务开始时间为区域A1内的用户设备提供服务。也就是说第二卫星小区在区域A1时的时刻是当前时刻的话,第一卫星小区的服务开始时间是当前时刻后的未来时间。
步骤102,网络设备向第二卫星小区的服务区域内的用户设备发送所述第一信息。
示例性地,网络设备可以通过第二卫星小区广播该第一信息,也可以通过其它控制消息的方式向第二卫星小区的服务区域内的用户设备指示该第一信息。后续描述时,以广播第一信息为例。
一种可能的实施方式中,网络设备确定卫星通信系统中第一卫星小区的第一覆盖区域至少覆盖第二卫星小区的当前服务区域,则获取到第一卫星小区的服务开始时间,向所述第二卫星小区的当前服务区域内的UE广播所述第一卫星小区的服务开始时间。可以理解的是,该第一覆盖区域是第一卫星小区在服务开始时间所覆盖的区域。应理解的是,在该情况下,不再广播第一卫星小区的覆盖区域信息。
示例性地,网络设备可以是核心网设备,或者是信关站、又或者是第二卫星小区。本申请实施例对此不作具体限定。
其中,第一卫星小区的第一覆盖区域至少覆盖第二卫星小区的当前服务区域,可以理解为,第一卫星小区的第一覆盖区域包含第二卫星小区的当前服务区域,或者第一卫星小区的第一覆盖区域与第二卫星小区的当前服务区域相同。第一卫星小区的第一覆盖区域与第二卫星小区的当前服务区域相同,也可以描述为第一卫星小区的第一覆盖区域与第二卫星小区的当前服务区域完全重叠。
第一卫星小区的第一覆盖区域至少覆盖第二卫星小区的当前服务区域,也可以理解为第一卫星小区的第一覆盖区域大于或者等于第二卫星小区的当前服务区域。
一种可能的示例中,第一卫星小区覆盖第二卫星小区的当前服务区域的服务开始时间为所述卫星通信系统包括的各个卫星小区的服务开始时间中能够所述UE提供服务的最早时间。这里所说的最早时间是第二卫星小区提供服务的开始时间之后的时间。比如,卫星通信系统中多个卫星小区存在能够覆盖第二卫星小区的当前服务区域的时间段。则第二卫星小区的服务开始时间是多个卫星小区分别覆盖第二卫星小区的当前服务区域的时间段的最早时间。例如,卫星通信系统中包括两个能够覆盖第二卫星小区的当前服务区域的卫星小区,分别为卫星小区1和卫星小区2。卫星小区1在t1时刻覆盖第二卫星小区的当前服务区域,卫星小区2在t2时刻覆盖第二卫星小区的当前服务区域。例如,t1<t2(比如,t1时刻先到),则网络设备可以广播卫星小区1的 服务开始时间。
另一种可能的示例中,卫星通信系统中多个卫星小区分别对应的覆盖区域能覆盖第二卫星小区的当前服务区域时,网络设备也可以广播该多个卫星小区分别对应的服务开始时间。比如,卫星通信系统中包括两个能够覆盖第二卫星小区的当前服务区域的卫星小区,分别为卫星小区1和卫星小区2。卫星小区1在t1时刻覆盖第二卫星小区的当前服务区域,卫星小区2在t2时刻覆盖第二卫星小区的当前服务区域。网络设备可以广播卫星小区1的服务开始时间以及卫星小区2的服务开始时间。
一些实施例中,网络设备还可以向所述第二卫星小区的当前服务区域内的UE广播第二卫星小区的服务结束时间。
位于第二卫星小区的当前服务区域内的UE在接收到第一卫星小区的服务开始时间后,可以知晓该第一卫星小区的在服务开始时间的覆盖区域是覆盖提供当前服务的第二卫星小区的当前服务区域的。后续以位于第二卫星小区的当前服务区域的UE1为例。
另一种可能的实现方式中,网络设备在确定第二卫星小区的下一个卫星小区的覆盖区域无法覆盖所述第二卫星小区的当前服务区域,获取第一卫星小区列表信息,向位于第二卫星小区的当前服务区域内的UE广播卫星小区列表信息。第二卫星小区的下一个卫星小区的覆盖区域无法覆盖所述第二卫星小区的当前服务区域,也可以理解为,卫星通信系统中不包括覆盖区域包含所述第二卫星小区的当前服务区域的卫星小区。
其中,第一卫星小区列表信息中包括至少一个卫星小区的服务开始时间。第一卫星小区列表信息中还可以包括至少一个卫星小区的覆盖区域信息。覆盖区域信息可以包括星历信息、仰角信息或者波速信息中的一项或者多项。星历信息可以包括卫星的轨道面的倾角,升交点的赤经,轨道椭圆长半轴,轨道椭圆的偏心率,近地点角距和卫星过近点时刻等。
位于第二卫星小区的当前服务区域内的UE在接收到第一卫星小区列表信息后,可以知晓服务小区列表中的各个卫星小区的覆盖区域无法完全覆盖 提供当前服务的第二卫星小区的当前服务区域。后续以位于第二卫星小区的当前服务区域的UE1为例。
步骤103,UE1接收到第一信息,根据第一信息确定下一个为自身提供服务的卫星小区的服务开始时间。
一种可能的实施方式中,UE1若接收到第一卫星小区的服务开始时间,可以确定第一卫星小区为下一个卫星小区为UE1提供服务的时间为该第一卫星小区的服务开始时间。下一个为UE1提供服务的卫星小区,也可以理解为UE1下一个即将驻留的卫星小区,或者称为下一个卫星小区(incoming卫星小区)。
一些实施例中,网络设备广播了包括第一卫星小区在内的多个卫星小区的服务开始时间时,UE1可以根据多个卫星小区的服务开始时间,从而从多个卫星小区选择下一个为自身提供服务的卫星小区。此处,包括第一卫星小区在内的多个卫星小区在分别对应的服务开始时间的覆盖区域均能够覆盖第二卫星小区的当前服务区域。比如,卫星通信系统中包括两个能够覆盖第二卫星小区的当前服务区域的卫星小区,分别为卫星小区1和卫星小区2。卫星小区1在t1时刻覆盖第二卫星小区的当前服务区域,卫星小区2在t2时刻覆盖第二卫星小区的当前服务区域。网络设备广播卫星小区1的服务开始时间以及卫星小区2的服务开始时间。则UE1可以从卫星小区1和卫星小区2中选择一个卫星小区作为下一个为自身提供服务的卫星小区。具体选择方式本申请不作限定。
另一种可能的实施方式中,UE1接收到卫星小区列表信息后,根据所述卫星小区列表信息确定下一个为UE1提供的卫星小区的服务开始时间。
比如,UE1可以根据自身所在的位置以及卫星小区列表信息中至少一个卫星小区的覆盖区域信息,选择一个能够覆盖自身所在位置的一个卫星小区作为下一个为UE1提供服务的卫星小区。该选择的卫星小区的服务开始时间是为该UE1提供服务的时间。比如,根据所述用户设备的位置信息、所述至少一个卫星小区在对应服务开始时间的覆盖区域信息,从所述第一卫星小区 列表信息确定能够覆盖所述用户设备所在位置的第三卫星小区,则将所述第三卫星小区对应的服务开始时间,确定为下一个为所述用户设备提供服务的卫星小区的服务开始时间。
一种可能的示例中,网络设备在发送第一卫星小区的服务开始时间,以及第一卫星小区列表信息可以在同一类型消息的同一个信息字段发送。比如,将该同一类型的消息称为第一消息。所述第一信息包括第一卫星小区的服务开始时间的情况下,所述第一消息中的第一字段承载所述第一卫星小区的服务开始时间。再比如,所述第一信息包括所述第一卫星小区列表信息的情况下,所述第一消息中的第一字段承载所述第一卫星小区列表信息。该第一字段也可以称为服务小区信息字段,也可以采用其它的称呼,本申请实施例对此不作具体限定。作为一种举例,第一消息可以是系统消息,即该服务小区信息字段可以位于系统消息中。例如,网络设备发送服务开始时间时,可以将该服务开始信息承载在系统消息中的服务小区信息字段。一些场景中,当网络设备需要发送第一卫星小区列表信息时,也可以通过系统消息中的服务小区信息字段来承载该第一卫星小区列表信息。对于UE1来说,如果确定该服务小区信息字段仅包括一条记录,该记录为一个时间信息,从该服务小区信息字段解析到该时间信息,则确定该时间信息记载的为下一个为UE1提供服务的卫星小区的服务开始时间。如果从该服务小区信息字段解析到一个或者多个服务开始时间以及覆盖区域信息,可以确定该服务小区信息字段承载第一卫星小区列表信息,进而根据一个或者多个服务开始时间以及覆盖区域信息确定下一个为UE1提供服务的卫星小区的服务开始时间。
另一种可能的示例中,网络设备在发送第一卫星小区的服务开始时间,以及发送卫星小区列表信息时,都通过单独的信息字段来发送。比如可以通过不同类型的消息来发送。也可以通过同种类型消息的不同字段来发送。比如,将该同一类型的消息称为第二消息。所述第一信息包括第一卫星小区的服务开始时间的情况下,所述第二消息中的第二字段承载所述第一卫星小区的服务开始时间。再比如,所述第一信息包括所述第一卫星小区列表信息的 情况下,所述第二消息中的第三字段承载所述第一卫星小区列表信息。从而UE1如果从第二字段获取到第一卫星小区的服务开始时间,则将该第一卫星小区的服务开始时间确定为下一个卫星小区的服务开始时间。从而UE1如果从第三字段获取到第一卫星小区列表信息,则根据第二卫星小区列表信息确定为下一个卫星小区的服务开始时间。
在一种可能的实施方式中,在第一信息包括第一卫星小区的服务开始时间时,网络设备还可以向所述UE广播覆盖区域变更指示。该覆盖区域变更指示用于指示第二卫星小区的下一个卫星小区的覆盖区域无法覆盖所述第二卫星小区的当前服务区域。例如,网络设备在确定第二卫星小区的下一个卫星小区的覆盖区域无法覆盖所述第二卫星小区的当前服务区域时,网络设备向第二卫星小区的当前服务区域的UE广播第一卫星小区列表信息,还广播该覆盖区域变更指示。参见图7所示的步骤201。可以理解为,覆盖区域变更指示用于告知第二卫星小区的当前服务区域内的UE下一个卫星小区的覆盖区域与当前服务的卫星小区的覆盖区域不同。
UE1如果接收到覆盖区域变更指示,则UE能够知晓下一个卫星小区的覆盖区域与当前服务的卫星小区的覆盖区域不同,则可以根据接收到的第一卫星小区列表信息,确定下一个为所述UE1提供服务卫星小区的服务开始时间,参见图7的步骤202。
在另一种可能的实施方式中,在第二卫星小区的下一个卫星小区的覆盖区域无法覆盖所述第二卫星小区的当前服务区域时,还可以向第二卫星小区的当前服务区域内的UE广播覆盖区域描述信息,所述覆盖区域描述信息包括所述至少一个覆盖区域分别对应的覆盖开始时间,以及所述至少一个覆盖区域在对应的覆盖开始时间的覆盖范围信息。例如,网络设备在确定第二卫星小区的下一个卫星小区的覆盖区域无法覆盖所述第二卫星小区的当前服务区域时,广播覆盖区域描述信息,参见图8所示的步骤301。示例性地,覆盖范围信息可以包括参考点信息,或者包括参考点信息和覆盖半径。还可以通过其它方式来表示覆盖范围,比如经纬度范围。
还以第二卫星小区的当前服务区域内UE1为例。参见图8中的步骤302,UE1接收到覆盖区域描述信息时,可以根据所述覆盖区域描述信息确定能够覆盖所述UE1所在位置的第二覆盖区域以及所述第二覆盖区域的覆盖开始时间。一种可能的示例中,UE1根据第一卫星小区列表信息确定下一个即将驻留的卫星小区以及下一个即将驻留的卫星小区的服务开始时间。该确定的服务开始时间能够满足驻留时间需求时,可以忽略覆盖区域描述信息。另一种可能的示例中,如果该确定的服务开始时间不能够满足驻留时间需求时,也可以从覆盖区域描述信息中确定下一个能够为自身提供服务的覆盖区域,以及对应的覆盖开始时间。又一种可能的示例中,UE1根据第一卫星小区列表信息确定下一个即将驻留的卫星小区以及下一个即将驻留的卫星小区的服务开始时间。然后还可以根据覆盖区域描述信息确定后续能够为自身提供服务的覆盖区域,以及对应的覆盖开始时间。通过上述方案,UE可以知晓在什么时间存在能够为自身提供服务的覆盖区域或者卫星小区,从而可以减少不必要的卫星小区搜索,以减少资源浪费。
在又一种可能实施方式中,在确定第二卫星小区的下一个卫星小区的覆盖区域无法覆盖所述第二卫星小区的当前服务区域时,网络设备可以向位于第二卫星小区的当前服务区域内的UE广播第一卫星小区列表信息、覆盖区域变更指示以及覆盖区域描述信息。进而位于第二卫星小区的当前服务区域内的UE可以根据覆盖区域变更指示来从接收信号中获取第一卫星小区列表信息和/或覆盖区域描述信息。
在一些可能实施例中,在获取到的第一信息包括第一卫星小区的服务开始时间的情况下,网络设备在所述第二卫星小区的当前服务区域内的用户设备UE广播所述第一卫星小区的服务开始时间时,还可以广播第二卫星小区列表信息,比如参见图9所示的步骤401。其中,该第二卫星小区列表信息中至少包括一个卫星小区的服务开始时间早于所述第一卫星小区的服务开始时间。进一步地,以第二卫星小区的当前服务区域内的UE1为例。UE1在接收到所述第一卫星小区的服务开始时间时,还接收到第二卫星小区列表信息。第二 卫星小区列表信息中至少包括一个卫星小区的服务开始时间早于所述第一卫星小区的服务开始时间。一些实施例中,UE1在确定所述第一卫星小区的服务开始时间不满足驻留时间需求时,从所述第二卫星小区列表信息中选择第四卫星小区作为下一个即将驻留的卫星小区。比如参见图9中的步骤402。其中,第四卫星小区在服务开始时间的覆盖区域包括所述UE所在的位置且所述第四卫星小区的服务开始时间早于所述第一卫星小区的服务开始时间。另一些实施例中,如果第一卫星小区的服务开始时间满足驻留时间需求,可以忽略该第二卫星小区列表信息。可以理解的是,所述第一卫星小区的服务开始时间不满足驻留时间需求可以包括第二卫星小区的服务结束时间早于第一卫星小区的服务开始时间。又一些实施例中,UE1根据所述第二卫星小区列表信息中判断是否存在能够覆盖自身位置的卫星小区,并且该卫星小区的服务开始时间早于第一卫星小区的服务开始时间。如果不存在,可以将该第一卫星小区作为下一个卫星小区。第一卫星小区的服务开始时间是为所述UE1提供服务的时间。
本申请实施例中,通过当前服务的卫星小区与所确定的下一个卫星小区的覆盖区域的关系,来确定广播的内容,可以减少不必要的信令开销,提高资源利用效率。UE可以根据广播内容以及自身需求来解析广播的内容,减少不必要的操作,进而减低UE功耗。
基于同一发明构思,本申请还提供一种信息传输装置,应用于网络设备。参见图10所示,该装置包括确定单元1001和发送单元1002。其中:
确定单元1001获取第一信息,所述第一信息包括第一卫星小区的服务开始时间或者包括第一卫星小区列表信息,所述第一卫星小区列表信息包括至少一个卫星小区的服务开始时间。
发送单元1002,用于向第二卫星小区的当前服务区域内的用户设备发送所述第一信息。
在一种可能的实现方式中,所述第一卫星小区的第一覆盖区域至少覆盖第二卫星小区的服务区域,所述第一覆盖区域是所述第一卫星小区在所述服 务开始时间所开始覆盖的区域;或者,
所述第一卫星小区列表信息还包括所述至少一个卫星小区在对应服务开始时间的覆盖区域信息,所述第一卫星小区列表信息包括的至少一个卫星小区的服务区域与所述第二卫星小区的当前服务区域存在重叠。
在一种可能的实现方式中,所述第一卫星小区为所述网络设备所属的卫星通信系统中最早能为所述用户设备提供服务的卫星小区。
在一种可能的实现方式中,所述第一信息包括第一卫星小区列表信息,所述发送单元1002,还用于向所述用户设备广播覆盖区域变更指示;所述覆盖区域变更指示用于指示所述网络设备所属的卫星通信系统中所述第二卫星小区的下一个卫星小区的覆盖区域与所述第二卫星小区的服务区域不同。
在一种可能的实现方式中,发送单元1002,具体用于:
向所述第二卫星小区的服务区域内的用户设备发送第一消息,所述第一消息中的第一字段承载所述第一卫星小区的服务开始时间;或者,
向所述第二卫星小区的服务区域内的用户设备发送第一消息,所述第一消息中的第一字段承载所述第一卫星小区列表信息。
在一种可能的实现方式中,发送单元1002,具体用于:
向所述第二卫星小区的服务区域内的用户设备发送第二消息,所述第二消息中的第二字段承载所述第一卫星小区的服务开始时间;或者,
向所述第二卫星小区的服务区域内的用户设备发送第二消息,所述第二消息中的第三字段承载所述第一卫星小区列表信息。
在一种可能的实现方式中,所述第一信息包括第一卫星小区的服务开始时间,发送单元1002,还用于向所述第二卫星小区的当前服务区域内的所述用户设备发送第二卫星小区列表信息;其中,所述第二卫星小区列表信息包括至少一个卫星小区的服务开始时间以及所述至少一个卫星小区的覆盖区域信息;所述第二卫星小区列表信息包括的至少一个卫星小区的覆盖区域与所述第二卫星小区的服务区域存在重叠;所述第二卫星小区列表信息中至少包括一个卫星小区的服务开始时间早于所述第一卫星小区的服务开始时间。
基于同一发明构思,本申请还提供一种信息传输装置,应用于用户设备UE,所述UE位于第二卫星小区的当前服务区域内,参见图11所示,所述装置包括接收单元1101和处理单元1102;
接收单元1101接收第一信息,所述第一信息包括第一卫星小区的服务开始时间或者包括第一卫星小区列表信息;所述第一卫星小区列表信息包括至少一个卫星小区的服务开始时间。
所述处理单元1102,用于根据所述第一信息确定下一个为所述用户设备提供服务的卫星小区的服务开始时间。
在一种可能的实现方式中,所述第一信息包括第一卫星小区的服务开始时间,所述处理单元1102,具体用于将所述第一卫星小区的服务开始时间确定为下一个为所述用户设备提供服务的卫星小区的服务开始时间。
在一种可能的实现方式中,所述第一信息包括卫星小区列表信息,所述第一卫星小区列表信息还包括所述至少一个卫星小区在对应服务开始时间的覆盖区域信息,所述处理单元1102,具体用于根据所述用户设备的位置信息、所述至少一个卫星小区在对应服务开始时间的覆盖区域信息从所述第一卫星小区列表信息确定能够覆盖所述用户设备所在位置的第三卫星小区;将所述第三卫星小区对应的服务开始时间确定为下一个为所述用户设备提供服务的卫星小区的服务开始时间。
在一种可能的实现方式中,所述第一卫星小区为所述用户设备所属的卫星通信系统中最早能为所述用户设备提供服务的卫星小区。
在一种可能的实现方式中,将所述第三卫星小区对应的服务开始时间确定为下一个为所述用户设备提供服务的卫星小区的服务开始时间之前,所述接收单元1101,还用于接收网络设备广播的覆盖区域变更指示,所述覆盖区域变更指示用于指示所述用户设备所属的卫星通信系统中所述第二卫星小区的下一个卫星小区的覆盖区域与所述第二卫星小区的服务区域不同。
在一种可能的实现方式中,所述接收单元1101,具体用于接收第一消息,处理单元1102从所述第一消息的第一字段获取所述第一信息。
在一种可能的实现方式中,所述接收单元1101,接收第二消息,处理单元1102从所述第二消息的第二字段获取所述第一卫星小区的服务开始时间;或者,
在一种可能的实现方式中,所述第一信息包括所述第一卫星小区列表信息情况下,所述接收单元1101,接收第二消息,处理单元1102从所述第二消息的第二字段获取所述第一卫星小区列表信息。
在一种可能的实现方式中,所述接收单元1101,还用于在接收所述第一卫星小区的服务开始时间时,还接收所述第二卫星小区列表信息;所述第二卫星小区列表信息包括至少一个卫星小区的服务开始时间以及所述至少一个卫星小区的覆盖区域信息;所述第二卫星小区列表信息包括的至少一个卫星小区的覆盖区域与所述第二卫星小区的服务区域存在重叠;所述第一卫星小区列表信息中至少包括一个卫星小区的服务开始时间早于所述第一卫星小区的服务开始时间;处理单元1102在确定所述第一卫星小区的服务开始时间不满足驻留时间需求时,从所述第二服务小区列表中选择第四卫星小区作为下一个为所述用户设备提供服务的卫星小区;其中,所述第四卫星小区在服务开始时间的覆盖区域包括所述用户设备所在的位置且所述第四卫星小区的服务开始时间早于所述第一卫星小区的服务开始时间。
基于相同的技术构思,本申请实施例还提供了一种网络设备。该网络设备能够执行上述任一实施例中网络设备实现的信息传输方法。
图12示出了本申请实施例提供的该网络设备的结构示意图,即示出了网络设备的另一结构示意图。如图12所示,该网络设备包括处理器1201、存储器1202和收发机1203。
处理器1201负责管理总线架构和通常的处理,存储器1202可以存储处理器1201在执行操作时所使用的数据。收发机1203用于在处理器1201的控制下接收和发送数据。
总线架构可以包括任意数量的互联的总线和桥,具体由处理器1201代表的一个或多个处理器和存储器1202代表的存储器的各种电路链接在一起。总 线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。处理器1201负责管理总线架构和通常的处理,存储器1202可以存储处理器1201在执行操作时所使用的数据。
本申请实施例揭示的流程,可以应用于处理器1201中,或者由处理器1201实现。在实现过程中,信号处理流程的各步骤可以通过处理器1201中的硬件的集成逻辑电路或者软件形式的指令完成。处理器1201可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件,可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器1202,处理器1201读取存储器1202中的信息,结合其硬件完成信号处理流程的步骤。
具体地,处理器1201,用于读取存储器1202中的计算机程序,当处理器1201执行所述计算机程序时实现图6-图9中任一实施例中网络设备实现的步骤。例如:
所述处理器1201,用于确定第一信息,所述第一信息包括第一卫星小区的服务开始时间或者包括第一卫星小区列表信息;所述第一卫星小区列表信息包括至少一个卫星小区的服务开始时间;通过收发机1203向所述第二卫星小区的当前服务区域内的用户设备发送所述第一信息。
基于相同的技术构思,本申请实施例还提供了一种用户设备。该用户设备能够执行上述任一实施例中用户设备实现的信息传输方法。图13示出了本申请实施例提供的该用户设备的结构示意图,即示出了用户设备的另一结构示意图。如图13所示,该用户设备包括处理器1301、存储器1302和收发机 1303。
处理器1301负责管理总线架构和通常的处理,存储器1302可以存储处理器1301在执行操作时所使用的数据。收发机1303用于在处理器1301的控制下接收和发送数据。
总线架构可以包括任意数量的互联的总线和桥,具体由处理器1301代表的一个或多个处理器和存储器1302代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。处理器1301负责管理总线架构和通常的处理,存储器1302可以存储处理器1301在执行操作时所使用的数据。
本申请实施例揭示的流程,可以应用于处理器1301中,或者由处理器1301实现。在实现过程中,信号处理流程的各步骤可以通过处理器1301中的硬件的集成逻辑电路或者软件形式的指令完成。处理器1301可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件,可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成,或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器1302,处理器1301读取存储器1302中的信息,结合其硬件完成信号处理流程的步骤。
具体地,处理器1301,用于读取存储器1302中的计算机程序,当处理器1301执行所述计算机程序时实现图4-图9中任一实施例中用户设备实现的步骤。例如:
所述处理器1301,用于通过收发机1303接收第一信息,所述第一信息包括第一卫星小区的服务开始时间或者包括第一卫星小区列表信息;所述第一 卫星小区列表信息包括至少一个卫星小区的服务开始时间;根据所述第一信息确定下一个为所述用户设备提供服务的卫星小区的服务开始时间。
本领域内的技术人员应明白,本申请的实施例可提供为方法、系统、或计算机程序产品。因此,本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然,本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的范围。这样,倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包含这些改动和变型在内。
Claims (43)
- 一种信息传输方法,其特征在于,应用于用户设备,所述用户设备位于第二卫星小区的服务区域内,包括:接收第一信息,所述第一信息包括第一卫星小区的服务开始时间或者包括第一卫星小区列表信息;所述第一卫星小区列表信息包括至少一个卫星小区的服务开始时间;根据所述第一信息确定下一个为所述用户设备提供服务的卫星小区的服务开始时间。
- 如权利要求1所述的方法,其特征在于,所述第一信息包括第一卫星小区的服务开始时间,所述根据所述第一信息确定下一个为所述用户设备提供服务的卫星小区的服务开始时间,包括:将所述第一卫星小区的服务开始时间,确定为下一个为所述用户设备提供服务的卫星小区的服务开始时间。
- 如权利要求1所述的方法,其特征在于,所述第一信息包括第一卫星小区列表信息,所述第一卫星小区列表信息还包括所述至少一个卫星小区在对应服务开始时间的覆盖区域信息,所述根据所述第一信息确定下一个为所述用户设备提供服务的卫星小区的服务开始时间,包括:根据所述用户设备的位置信息、所述至少一个卫星小区在对应服务开始时间的覆盖区域信息,从所述第一卫星小区列表信息中确定能够覆盖所述用户设备所在位置的第三卫星小区;将所述第三卫星小区对应的服务开始时间,确定为下一个为所述用户设备提供服务的卫星小区的服务开始时间。
- 如权利要求1或2所述的方法,其特征在于,所述第一卫星小区为所述用户设备所属的卫星通信系统中最早能为所述用户设备提供服务的卫星小区。
- 如权利要求3所述的方法,其特征在于,将所述第三卫星小区对应的 服务开始时间,确定为下一个为所述用户设备提供服务的卫星小区的服务开始时间之前,所述方法还包括:接收覆盖区域变更指示,所述覆盖区域变更指示用于指示所述用户设备所属的卫星通信系统中下一个卫星小区的覆盖区域与所述第二卫星小区的服务区域不同。
- 如权利要求1或2所述的方法,其特征在于,所述接收第一信息,包括:接收第一消息,从所述第一消息的第一字段获取所述第一信息。
- 如权利要求1或2所述的方法,其特征在于,所述接收第一信息,包括:接收第二消息,从所述第二消息的第二字段获取所述第一卫星小区的服务开始时间;或者,接收第二消息,从所述第二消息的第二字段获取所述第一卫星小区列表信息。
- 如权利要求3或5所述的方法,其特征在于,所述第一信息包括第一卫星小区的服务开始时间,所述方法还包括:接收第二卫星小区列表信息,所述第二卫星小区列表信息包括至少一个卫星小区的服务开始时间以及所述至少一个卫星小区的覆盖区域信息;所述第二卫星小区列表信息包括的至少一个卫星小区的覆盖区域与所述第二卫星小区的服务区域存在重叠;所述第一卫星小区列表信息包括至少一个服务开始时间早于所述第一卫星小区的服务开始时间的卫星小区;在确定所述第一卫星小区的服务开始时间不满足驻留时间需求时,从第二服务小区列表中选择第四卫星小区作为下一个为所述用户设备提供服务的卫星小区;其中,所述第四卫星小区在服务开始时间的覆盖区域包括所述用户设备所在的位置,且所述第四卫星小区的服务开始时间早于所述第一卫星小区的服务开始时间。
- 如权利要求1所述的方法,其特征在于,所述第一卫星小区列表信息还包括至少一个卫星小区的覆盖区域信息;所述覆盖区域信息包括星历信息和/或仰角信息。
- 如权利要求1所述的方法,其特征在于,所述第一卫星小区列表信息仅包括一个卫星小区的服务开始时间。
- 如权利要求10所述的方法,其特征在于,所述根据所述第一信息确定下一个为所述用户设备提供服务的卫星小区的服务开始时间,包括:将所述一个卫星小区的所述服务开始时间,确定为下一个为所述用户设备提供服务的卫星小区的服务开始时间。
- 一种信息传输方法,其特征在于,应用于网络设备,包括:确定第一信息,所述第一信息包括第一卫星小区的服务开始时间或者包括第一卫星小区列表信息,所述第一卫星小区列表信息包括至少一个卫星小区的服务开始时间;向第二卫星小区的服务区域内的用户设备发送所述第一信息。
- 如权利要求12所述的方法,其特征在于,所述第一卫星小区的第一覆盖区域至少覆盖第二卫星小区的服务区域,所述第一覆盖区域是所述第一卫星小区在所述服务开始时间所开始覆盖的区域;或者,所述第一卫星小区列表信息还包括所述至少一个卫星小区在对应服务开始时间的覆盖区域信息,所述第一卫星小区列表信息包括的至少一个卫星小区的服务区域与所述第二卫星小区的服务区域存在重叠。
- 如权利要求12或13所述的方法,其特征在于,所述第一卫星小区为所述网络设备所属的卫星通信系统中最早能为所述用户设备提供服务的卫星小区。
- 如权利要求12或13所述的方法,其特征在于,所述第一信息包括第一卫星小区列表信息,所述方法还包括:向所述用户设备广播覆盖区域变更指示;所述覆盖区域变更指示用于指示所述网络设备所属的卫星通信系统中下一个卫星小区的覆盖区域与所述第 二卫星小区的服务区域不同。
- 如权利要求12或13所述的方法,其特征在于,向所述第二卫星小区的服务区域内的用户设备发送所述第一信息,包括:向所述第二卫星小区的服务区域内的用户设备发送第一消息,所述第一消息中的第一字段承载所述第一卫星小区的服务开始时间;或者,向所述第二卫星小区的服务区域内的用户设备发送第一消息,所述第一消息中的第一字段承载所述第一卫星小区列表信息。
- 如权利要求12或13所述的方法,其特征在于,向所述第二卫星小区的服务区域内的用户设备发送所述第一信息,包括:向所述第二卫星小区的服务区域内的用户设备发送第二消息,所述第二消息中的第二字段承载所述第一卫星小区的服务开始时间;或者,向所述第二卫星小区的服务区域内的用户设备发送第二消息,所述第二消息中的第三字段承载所述第一卫星小区列表信息。
- 如权利要求12或13所述的方法,其特征在于,所述第一信息包括第一卫星小区的服务开始时间,所述方法还包括:向所述第二卫星小区的服务区域内的所述用户设备发送第二卫星小区列表信息;其中,所述第二卫星小区列表信息包括至少一个卫星小区的服务开始时间以及所述至少一个卫星小区的覆盖区域信息;所述第二卫星小区列表信息包括的至少一个卫星小区的覆盖区域与所述第二卫星小区的服务区域存在重叠;所述第二卫星小区列表信息包括至少一个服务开始时间早于所述第一卫星小区的服务开始时间的卫星小区。
- 如权利要求12所述的方法,其特征在于,所述第一卫星小区列表信息还包括至少一个卫星小区的覆盖区域信息;所述覆盖区域信息包括星历信息和/或仰角信息。
- 如权利要求12所述的方法,其特征在于,所述第一卫星小区列表信息仅包括一个卫星小区的服务开始时间。
- 一种用户设备,其特征在于,所述用户设备位于第二卫星小区的服务区域内,所述用户设备包括收发机、处理器、以及与所述处理器通信连接的存储器;其中,所述存储器存储有可被所述处理器执行的指令,所述指令被所述处理器执行,以使所述处理器能够执行:通过所述收发机接收第一信息,所述第一信息包括第一卫星小区的服务开始时间或者包括第一卫星小区列表信息;所述第一卫星小区列表信息包括至少一个卫星小区的服务开始时间;根据所述第一信息确定下一个为所述用户设备提供服务的卫星小区的服务开始时间。
- 如权利要求21所述的用户设备,其特征在于,所述第一信息包括第一卫星小区的服务开始时间,所述处理器,具体用于:将所述第一卫星小区的服务开始时间,确定为下一个为所述用户设备提供服务的卫星小区的服务开始时间。
- 如权利要求21所述的用户设备,其特征在于,所述第一信息包括第一卫星小区列表信息,所述第一卫星小区列表信息还包括所述至少一个卫星小区在对应服务开始时间的覆盖区域信息,所述处理器,具体用于:根据所述用户设备的位置信息、所述至少一个卫星小区在对应服务开始时间的覆盖区域信息从所述第一卫星小区列表信息中确定能够覆盖所述用户设备所在位置的第三卫星小区;将所述第三卫星小区对应的服务开始时间确定为下一个为所述用户设备提供服务的卫星小区的服务开始时间。
- 如权利要求21或22所述的用户设备,其特征在于,所述第一卫星小区为所述用户设备所属的卫星通信系统中最早能为所述用户设备提供服务的卫星小区。
- 如权利要求23所述的用户设备,其特征在于,所述处理器,还用于:将所述第三卫星小区对应的服务开始时间确定为下一个为所述用户设备提供服务的卫星小区的服务开始时间之前,通过所述收发机接收覆盖区域变更指示,所述覆盖区域变更指示用于指示所述用户设备所属的卫星通信系统中下 一个卫星小区的覆盖区域与所述第二卫星小区的服务区域不同。
- 如权利要求21或22所述的用户设备,其特征在于,所述处理器,具体用于:通过所述收发机接收第一消息,从所述第一消息的第一字段获取所述第一信息。
- 如权利要求21或22所述的用户设备,其特征在于,所述处理器,具体,具体用于:通过所述收发机接收第二消息,从所述第二消息的第二字段获取所述第一卫星小区的服务开始时间;或者,通过所述收发机接收第二消息,从所述第二消息的第二字段获取所述第一卫星小区列表信息。
- 如权利要求22或25所述的用户设备,其特征在于,所述第一信息包括第一卫星小区的服务开始时间,所述收发机,还用于接收第二卫星小区列表信息,所述第二卫星小区列表信息包括至少一个卫星小区的服务开始时间以及所述至少一个卫星小区的覆盖区域信息;所述第二卫星小区列表信息包括的至少一个卫星小区的覆盖区域与所述第二卫星小区的服务区域存在重叠;所述第一卫星小区列表信息包括至少一个服务开始时间早于所述第一卫星小区的服务开始时间的卫星小区;所述处理器,还用于在确定所述第一卫星小区的服务开始时间不满足驻留时间需求时,从所述第二服务小区列表中选择第四卫星小区作为下一个为所述用户设备提供服务的卫星小区;其中,所述第四卫星小区在服务开始时间的覆盖区域包括所述用户设备所在的位置,且所述第四卫星小区的服务开始时间早于所述第一卫星小区的服务开始时间。
- 如权利要求21所述的用户设备,其特征在于,所述第一卫星小区列表信息还包括至少一个卫星小区的覆盖区域信息;所述覆盖区域信息包括星历信息和/或仰角信息。
- 如权利要求21所述的用户设备,其特征在于,所述第一卫星小区列表信息仅包括一个卫星小区的服务开始时间。
- 如权利要求30所述的用户设备,其特征在于,所述处理器,具体用于:将所述一个卫星小区的所述服务开始时间,确定为下一个为所述用户设备提供服务的卫星小区的服务开始时间。
- 一种网络设备,其特征在于,包括收发机、处理器、以及与所述处理器通信连接的存储器;其中,所述存储器存储有可被所述处理器执行的指令,所述指令被所述处理器执行,以使所述处理器能够执行;确定第一信息,所述第一信息包括第一卫星小区的服务开始时间或者包括第一卫星小区列表信息,所述第一卫星小区列表信息包括至少一个卫星小区的服务开始时间;通过所述收发机向第二卫星小区的服务区域内的用户设备发送所述第一信息。
- 如权利要求32所述的网络设备,其特征在于,所述第一卫星小区的第一覆盖区域至少覆盖第二卫星小区的服务区域,所述第一覆盖区域是所述第一卫星小区在所述服务开始时间所开始覆盖的区域;或者,所述第一卫星小区列表信息还包括所述至少一个卫星小区在对应服务开始时间的覆盖区域信息,所述第一卫星小区列表信息包括的至少一个卫星小区的服务区域与所述第二卫星小区的服务区域存在重叠。
- 如权利要求32或33所述的网络设备,其特征在于,所述第一卫星小区为所述网络设备所属的卫星通信系统中最早能为所述用户设备提供服务的卫星小区。
- 如权利要求32或33所述的网络设备,其特征在于,所述第一信息包括第一卫星小区列表信息,所述处理器,还用于:控制所述收发机向所述UE广播覆盖区域变更指示;所述覆盖区域变更指示用于指示所述网络设备所属的卫星通信系统中下一个卫星小区的覆盖区域与所述第二卫星小区的服务 区域不同。
- 如权利要求32或33所述的网络设备,其特征在于,所述处理器,具体用于:通过所述收发机向所述第二卫星小区的服务区域内的用户设备发送第一消息,所述第一消息中的第一字段承载所述第一卫星小区的服务开始时间;或者,通过所述收发机向所述第二卫星小区的服务区域内的用户设备发送第一消息,所述第一消息中的第一字段承载所述第一卫星小区列表信息。
- 如权利要求32或33所述的网络设备,其特征在于,所述处理器,具体用于:所述第一信息包括第一卫星小区的服务开始时间,通过所述收发机向所述第二卫星小区的服务区域内的用户设备发送第二消息,所述第二消息中的第二字段承载所述第一卫星小区的服务开始时间;或者,所述第一信息包括所述第一卫星小区列表信息,通过所述收发机向所述第二卫星小区的服务区域内的用户设备发送第二消息,所述第二消息中的第三字段承载所述第一卫星小区列表信息。
- 如权利要求32或33所述的网络设备,其特征在于,所述第一信息包括第一卫星小区的服务开始时间,所述处理器,还用于:通过所述收发机向所述第二卫星小区的服务区域内的所述用户设备发送第二卫星小区列表信息;其中,所述第二卫星小区列表信息包括至少一个卫星小区的服务开始时间以及所述至少一个卫星小区的覆盖区域信息;所述第二卫星小区列表信息包括的至少一个卫星小区的覆盖区域与所述第二卫星小区的服务区域存在重叠;所述第一卫星小区列表信息中包括至少一个服务开始时间早于所述第一卫星小区的服务开始时间的卫星小区。
- 如权利要求32所述的网络设备,其特征在于,所述第一卫星小区列表信息还包括至少一个卫星小区的覆盖区域信息;所述覆盖区域信息包括星 历信息和/或仰角信息。
- 如权利要求32所述的网络设备,其特征在于,所述第一卫星小区列表信息仅包括一个卫星小区的服务开始时间。
- 一种信息传输装置,应用于用户设备,其所述用户设备位于第二卫星小区的服务区域内,其特征在于,包括:接收单元,用于接收第一信息,所述第一信息包括第一卫星小区的服务开始时间或者包括第一卫星小区列表信息;所述第一卫星小区列表信息包括至少一个卫星小区的服务开始时间;处理单元,用于根据所述第一信息确定下一个为所述用户设备提供服务的卫星小区的服务开始时间。
- 一种信息传输装置,其特征在于,应用于网络设备,包括:确定单元,用于确定第一信息,所述第一信息包括第一卫星小区的服务开始时间或者包括第一卫星小区列表信息,所述第一卫星小区列表信息包括至少一个卫星小区的服务开始时间;发送单元,用于向所述第二卫星小区的当前服务区域内的用户设备发送所述第一信息。
- 一种计算机可读存储介质,其特征在于,所述存储介质存储有计算机指令,所述计算机指令被处理器执行时实现如权利要求1至11中任一项所述的方法,或者实现如权利要求12至20任一项所述的方法。
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