WO2022021126A1 - 卫星通信方法及装置、存储介质 - Google Patents

卫星通信方法及装置、存储介质 Download PDF

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Publication number
WO2022021126A1
WO2022021126A1 PCT/CN2020/105448 CN2020105448W WO2022021126A1 WO 2022021126 A1 WO2022021126 A1 WO 2022021126A1 CN 2020105448 W CN2020105448 W CN 2020105448W WO 2022021126 A1 WO2022021126 A1 WO 2022021126A1
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WIPO (PCT)
Prior art keywords
satellite
cell
target information
user equipment
signal quality
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PCT/CN2020/105448
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English (en)
French (fr)
Inventor
洪伟
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202080001693.XA priority Critical patent/CN114342470A/zh
Priority to PCT/CN2020/105448 priority patent/WO2022021126A1/zh
Priority to EP20947424.6A priority patent/EP4192098A4/en
Priority to US18/013,739 priority patent/US20230300699A1/en
Publication of WO2022021126A1 publication Critical patent/WO2022021126A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • 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
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18539—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection
    • H04B7/18541—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection for handover of resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • 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 disclosure relates to the field of communications, and in particular, to a satellite communication method and device, and a storage medium.
  • Air-space-earth-sea integration is a key communication technology.
  • Air-space-earth-sea integration refers to the formation of a constellation of satellites with different orbits, different types, and different performances to cover the world.
  • the aircraft and various communication platforms are intensively combined, adopting intelligent high-speed on-board processing, switching and routing technologies, oriented to optical and infrared multi-spectral information, and in accordance with the principle of maximum and effective comprehensive utilization of information resources, to obtain information accurately, quickly and efficiently.
  • the integrated high-speed broadband and large-capacity information network for transmission that is, the integrated network of space-based, space-based and land-based.
  • the number of existing communication satellites is still relatively small, resulting in discontinuous coverage of the satellite network, and the coverage area of the satellite network changes with the movement of the communication satellites.
  • embodiments of the present disclosure provide a satellite communication method and device, and a storage medium.
  • a satellite communication method is provided, and the method is used for user equipment, including:
  • Cell selection or cell reselection is performed based on at least the target message.
  • the receiving target information sent by at least one satellite includes:
  • a first system message that is broadcast by the at least one satellite and carries the target information is received.
  • the method further includes:
  • the receiving target information sent by at least one satellite includes:
  • a second system message that carries the target information and is broadcast by the at least one satellite based on the request message is received.
  • performing cell selection or cell reselection based on at least the target message includes:
  • cell selection or cell reselection is performed based on at least a signal quality parameter and the target information.
  • performing cell selection or cell reselection based on at least the signal quality parameter and the target information including:
  • the cell whose value of the signal quality parameter is greater than the preset value is used as the candidate cell;
  • cell selection or cell reselection is performed based on at least the target information.
  • performing cell selection or cell reselection based on at least the signal quality parameter and the target information including:
  • Cell selection or cell reselection is performed according to at least the first weight value and the signal quality parameter.
  • performing cell selection or cell reselection at least according to the first weight value and the signal quality parameter includes:
  • Cell selection or cell reselection is performed at least according to the first weight value and/or the product value.
  • performing cell selection or cell reselection based on at least the signal quality parameter and the target information including:
  • cell selection or cell reselection is performed based on at least a signal quality parameter, the target information and at least one other parameter.
  • the determining the first weight value corresponding to the time when the cell of the at least one satellite exists in one or more areas includes:
  • the first weight value is determined according to the time that the cells of the at least one satellite exist in one or more regions.
  • a satellite communication method is provided, and the method is used for satellites, including:
  • Target information at least includes the time when the cells of the at least one satellite exist in one or more areas.
  • the sending target information includes:
  • the method further includes:
  • the sending target information includes:
  • the method further includes:
  • a first weight value corresponding to the time when the cell of the satellite exists in one or more regions is broadcast.
  • a satellite communication apparatus the apparatus being used for user equipment, including:
  • a receiving module configured to receive target information sent by at least one satellite; wherein, the target information at least includes the time when a cell of the at least one satellite exists in one or more areas;
  • An execution module configured to perform cell selection or cell reselection based on at least the target message.
  • a satellite communication device the device being used for satellites, comprising:
  • the sending module is configured to send target information; wherein, the target information at least includes the time when the cell of the at least one satellite exists in one or more areas.
  • a computer-readable storage medium where the storage medium stores a computer program, and the computer program is used to execute the satellite communication method according to any one of the foregoing first aspects.
  • a computer-readable storage medium where the storage medium stores a computer program, and the computer program is used to execute the satellite communication method according to any one of the foregoing second aspects.
  • a satellite communication device comprising:
  • the processor is configured to execute the computer program to implement the satellite communication method according to any one of the first aspect above.
  • a satellite communication device comprising:
  • the processor is configured to execute the computer program to implement the satellite communication method according to any one of the second aspect above.
  • the user equipment may receive target information sent by at least one satellite, where the target information at least includes the time when the cell of the at least one satellite exists in one or more areas. Further, the user equipment may at least be based on The received target information is used for cell selection or cell reselection. In the embodiments of the present disclosure, the purpose of performing cell selection or cell reselection by the user equipment based on the existence time of at least one satellite cell in one or more areas during the satellite communication process is achieved.
  • the user equipment may receive at least one satellite broadcasted first system message that carries the target information, or the user equipment may send a request message to request acquisition of target information, further, the user equipment may receive at least one satellite-based system message The request message, the second system message that carries the target information sent through unicast signaling, or the second system message that carries the target information that is broadcast.
  • the purpose of receiving target information sent by at least one satellite is achieved, and subsequent user equipment can perform cell selection or cell reselection according to the received target information, with high availability.
  • the user equipment can perform cell selection or cell reselection in a cell of at least one satellite based on at least the signal quality parameter and target information. The time that a cell exists in one or more areas, for the purpose of cell selection or cell reselection.
  • a cell with a signal quality parameter value greater than a preset value may be used as a candidate cell, and further, in the candidate cell, cell selection is performed based on at least target information or Cell reselection ensures communication quality.
  • the first weight value corresponding to the time when the cell of at least one satellite exists in one or more areas may be determined, so as to perform cell selection or cell reselection at least according to the first weight value and the signal quality parameter. Simple implementation and high availability.
  • the user equipment may also perform cell selection or cell reselection in a cell of at least one satellite based on at least a signal quality parameter, received target information, and at least one other parameter. This enables the user equipment to comprehensively consider the influence of various factors when performing cell selection or cell reselection, and the final selected cell is more reasonable.
  • FIG. 1A is a schematic diagram of a satellite communication scenario according to an exemplary embodiment.
  • FIG. 1B is a schematic diagram of another satellite communication scenario according to an exemplary embodiment.
  • Fig. 2 is a schematic flowchart of a satellite communication method according to an exemplary embodiment.
  • Fig. 3 is a schematic flowchart of another satellite communication method according to an exemplary embodiment.
  • Fig. 4 is a schematic flowchart of another satellite communication method according to an exemplary embodiment.
  • Fig. 5 is a schematic flowchart of another satellite communication method according to an exemplary embodiment.
  • FIG. 6 is a schematic flowchart of another satellite communication method according to an exemplary embodiment.
  • FIG. 7 is a schematic flowchart of another satellite communication method according to an exemplary embodiment.
  • FIG. 8 is a schematic flowchart of another satellite communication method according to an exemplary embodiment.
  • Fig. 9 is a block diagram of a satellite communication device according to an exemplary embodiment.
  • Fig. 10 is a block diagram of another satellite communication apparatus according to an exemplary embodiment.
  • FIG. 11 is a schematic structural diagram of a satellite communication device according to an exemplary embodiment.
  • FIG. 12 is a schematic structural diagram of another satellite communication device according to an exemplary embodiment.
  • first, second, third, etc. may be used in this disclosure to describe various pieces of information, such information should not be limited by these terms. These terms are only used to distinguish the same type of information from each other.
  • first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information, without departing from the scope of the present disclosure.
  • word "if” as used herein can be interpreted as "at the time of” or "when” or "in response to determining.”
  • a user equipment selects or reselection a cell, it selects an appropriate satellite for access according to the signal quality of the base station.
  • the base station location is fixed and the coverage is continuous.
  • the position of the satellites moves relative to the ground, which causes the coverage of the satellites to move, and because the number of satellites is small, the coverages are not continuous. So how to reasonably carry out cell selection or cell reselection in a satellite communication system is a problem that needs to be solved.
  • the present disclosure provides a satellite communication solution, which can be applied in satellite communication scenarios.
  • the satellite communication scenarios of the present disclosure include, but are not limited to, the scenario shown in FIG. 1A , where user equipment communicates directly through satellites, and the link between the user equipment and the satellite is called a service link.
  • the satellite acts as a relay and forwards the signaling and/or information sent by the base station through the gateway to the user equipment.
  • the direct link between the satellite and the user equipment is called a service connection. Links between gateways are called feeder links.
  • FIG. 2 is a flowchart of a satellite communication method according to an embodiment Figure, the method may include the following steps:
  • step 101 target information sent by at least one satellite is received.
  • the target information at least includes the time when the cell of the at least one satellite exists in one or more areas.
  • the target information may be realized by the correspondence between the area identifier and the existence time when the cell of the satellite exists in one or more areas, and the above correspondence is shown in Table 1, for example.
  • Zone 1 and Zone 2 T1-T2 Zone 3 T3-T4 ... ...
  • step 102 cell selection or cell reselection is performed based on at least the target message.
  • the user equipment can receive target information sent by at least one satellite, wherein the target information at least includes the time when the cell of the at least one satellite exists in one or more areas.
  • the received target information is used for cell selection or cell reselection.
  • the purpose of performing cell selection or cell reselection by the user equipment based on the existence time of at least one satellite cell in one or more areas during the satellite communication process is achieved.
  • the user equipment may receive at least one satellite broadcasted first system message that carries the target information.
  • the first system message may include minimum SI (minimum System Information, minimum system message), or other SI (other system message).
  • minimum SI is the minimum system message required by the terminal to access the satellite, and other SI is other system messages except minimumSI.
  • At least one satellite may periodically broadcast minimum SI or other SI carrying target information, respectively, so that user equipment can receive the target information.
  • FIG. 3 is a flowchart of another satellite communication method shown according to the embodiment shown in FIG. 2 , and the method may further include:
  • step 100 a request message is sent.
  • the request message is used for requesting to acquire target information.
  • the request message may be a request message for requesting to obtain other SI.
  • step 101 may include:
  • a second system message that carries the target information and is broadcast by the at least one satellite based on the request message is received.
  • the satellite when the satellite sends the target information to the user equipment, it can send the second system message carrying the target information to the user equipment through unicast signaling based on the above request message, and the user equipment directly receives That's it.
  • the satellite may broadcast the second system message carrying the target information based on the request message, and the user equipment may receive the second system message carrying the target information periodically broadcast by the satellite .
  • the second system message sent by the satellite is other SI.
  • the user equipment may receive at least one satellite broadcasted first system message carrying the target information, or the user equipment may send a request message to request acquisition of the target information, further, the user equipment may receive at least one satellite-based request message, the second system message that carries the target information sent through unicast signaling, or the second system message that carries the target information that is broadcast.
  • the purpose of receiving target information sent by at least one satellite is achieved, and subsequent user equipment can perform cell selection or cell reselection according to the received target information, with high availability.
  • step 102 may include:
  • cell selection or cell reselection is performed based on at least a signal quality parameter and the target information.
  • the signal quality parameter is a parameter used to measure the signal quality of the cell of the satellite, including but not limited to RSRP (Reference Signal Receiving Power, reference signal received power), RSRQ (Reference Signal Receiving Quality, reference signal reception power) quality) etc.
  • RSRP Reference Signal Receiving Power, reference signal received power
  • RSRQ Reference Signal Receiving Quality, reference signal reception power
  • FIG. 4 is a flowchart of another satellite communication method according to the embodiment shown in FIG. 2.
  • Step 102 may include:
  • step 201 among the cells of the at least one satellite, a cell whose value of the signal quality parameter is greater than a preset value is used as a candidate cell.
  • the user equipment may measure the values of the signal quality parameters corresponding to at least one satellite respectively.
  • a cell whose signal quality parameter value is greater than a preset value is selected as a candidate cell. That is, a cell with better signal quality is screened out as a candidate cell.
  • step 202 in the candidate cell, cell selection or cell reselection is performed based on at least the target information.
  • the user equipment may perform cell selection or cell reselection based on at least the target information in a candidate cell with better signal quality.
  • the user equipment may select a cell with a signal quality parameter value greater than a preset value in the cell of at least one satellite as a candidate cell, and further, in the candidate cell, at least according to the target information, perform cell selection. Or cell reselection to ensure communication quality.
  • FIG. 5 is a flowchart of another satellite communication method according to the embodiment shown in FIG. 2, and step 102 may include:
  • step 301 a first weight value corresponding to the time when the cell of the at least one satellite exists in one or more regions is determined.
  • the user equipment may determine the first weight value in any of the following manners:
  • the first weight value of at least one satellite broadcast is received.
  • At least one satellite may configure the corresponding first weight value for the time when its own cell exists in one or more areas, and send it to the user equipment by means of broadcast signaling, and the user equipment performs take over.
  • the user equipment determines the first weight value according to the previously received target information.
  • the user equipment may directly use the time when the cell of the satellite exists in one or more areas as the first weight value.
  • the closer the start time of the cell's presence in the one or more areas to the current time, the larger the first weight value may be.
  • the time that the cells of the satellite exist in one or more regions may be normalized, and the value obtained after normalization may be used as the first weight value.
  • step 302 cell selection or cell reselection is performed at least according to the first weight value and the signal quality parameter.
  • cell selection or cell reselection may be performed at least according to the above-mentioned first weight value and signal quality parameter.
  • FIG. 6 is a flowchart of another satellite communication method according to the embodiment shown in FIG. 5, and step 302 may include:
  • step 401 a second weight value corresponding to the signal quality parameter is determined.
  • the user equipment may set different second weight values for the signal quality parameters of different cells.
  • the higher the value of the signal quality parameters of the cells the higher the corresponding second weight value. .
  • step 402 a product value of the value of the signal quality parameter and the second weight value is determined.
  • the values of the signal quality parameters of different cells may be multiplied by the corresponding second weight values to obtain the product value.
  • step 403 cell selection or cell reselection is performed at least according to the first weight value and/or the product value.
  • the cell with the largest first weight value may be selected, that is, the cell with the longest existing time of the cell may be selected, or the cell with the largest product value may be selected, that is, the signal quality may be selected.
  • the best cell, or the best cell after comprehensive consideration of signal quality and cell existence time can be selected.
  • the first weight value corresponding to the time when the cell of at least one satellite exists in one or more areas can be determined, so that cell selection or cell reselection is performed at least according to the first weight value and the signal quality parameter. Simple implementation and high availability.
  • the foregoing step 102 may include:
  • cell selection or cell reselection is performed based on at least a signal quality parameter, the target information and at least one other parameter.
  • the at least one other parameter includes, but is not limited to, a moving speed parameter of the user equipment, a moving speed parameter of a satellite, a moving direction parameter of the user equipment, and a moving direction parameter of the satellite.
  • the moving speed parameter of the satellite and/or the moving direction parameter of the satellite may be sent by the satellite to the user equipment through broadcast signaling.
  • the cells of at least one satellite may be sorted according to the signal quality parameter, the target information and at least one other parameter, and the cell selection or cell reselection may be performed in the order from the front to the back. choose.
  • the satellite and the user equipment move in the same direction or both move towards each other, and the satellite moves in the same direction. The faster the speed and/or the faster the user equipment moves, the higher the corresponding cell ranking is.
  • the user equipment may also perform cell selection or cell reselection in a cell of at least one satellite based on at least the signal quality parameter, the received target information and at least one other parameter. This enables the user equipment to comprehensively consider the influence of various factors when performing cell selection or cell reselection, and the final selected cell is more reasonable.
  • An embodiment of the present disclosure provides a satellite communication method, the method is used for satellites, and the method may include the following steps:
  • step 501 target information is sent.
  • the target information at least includes the time when the cell of the at least one satellite exists in one or more regions.
  • the satellite may transmit target information, wherein the target information at least includes the time when the cell of the at least one satellite exists in one or more areas.
  • the user equipment After receiving the target information sent by at least one satellite, the user equipment can perform cell selection or cell reselection based on the received target information, with high availability.
  • the satellite may broadcast the target information to the user equipment through the first system message.
  • the first system message may include minimum SI or other SI.
  • the satellite may broadcast the first system message carrying the target information according to a preset period, so that the user equipment can receive it.
  • the satellite may send the target information to the at least one user equipment according to a request message sent by the at least one user equipment.
  • the satellite may receive a request message sent by at least one user equipment, where the request message is used to request acquisition of target information.
  • the request message may be a request message for requesting other SI.
  • the satellite may send the second system message carrying the target information to at least one user equipment that initiates the request by means of unicast signaling based on the above request message.
  • the satellite may broadcast the second system message carrying the target information based on the request message.
  • the second system message sent by the satellite is the other SI carrying the target information.
  • the satellite can broadcast the first system message carrying the target information, or the satellite can send the second system message carrying the target information to the user through unicast signaling according to a request message sent by at least one user equipment
  • the device or the satellite may also broadcast the second system message carrying the target information according to the request message sent by at least one user.
  • the present disclosure sends target information to the user equipment through a system message, so that the user equipment can perform cell selection or cell reselection according to the target information.
  • FIG. 7 is a flowchart of another satellite communication method according to an embodiment, and the method may include the following steps:
  • step 502 broadcast the first weight value corresponding to the time when the cell of the satellite exists in one or more areas.
  • the satellite may configure the corresponding first weight value according to the time when the cell exists in one or more areas.
  • the longer the existence time the larger the first weight value may be.
  • the existence time of the cell may be used as the first weight value.
  • the closer the start time of the cell's presence in the one or more areas to the current time the larger the first weight value may be.
  • normalization processing may be performed on the existence time of the cell, and the value obtained after normalization is used as the first weight value.
  • the satellite may broadcast the first weight value. So that the subsequent user equipment performs cell selection or cell reselection at least according to the received first weight value and the signal quality parameter, and the availability is high.
  • the satellite may also transmit its own moving speed parameter and/or the moving direction parameter of the satellite through broadcast. It is sent in the mode of transmission, so that the user equipment can perform cell selection or cell reselection after comprehensive consideration after receiving.
  • FIG. 8 shows a flowchart of another satellite communication method according to an embodiment.
  • at least one satellite is only described by taking satellite 1 and satellite 2 as examples. , the number of satellites can be more.
  • the method may include the following steps:
  • step 601 the user equipment sends a request message.
  • the request message is used for requesting to acquire the target information of the satellite, and the target information at least includes the time when the cell of the at least one satellite exists in one or more areas, and the request message is a request message for requesting other SI.
  • step 602 at least one satellite transmits target information based on the request message.
  • the satellite may send the second system message carrying the target information to the user equipment through unicast signaling, and may also periodically broadcast the second system message carrying the target information.
  • the second system message here is other SI.
  • step 603 among the cells of the at least one satellite, the user equipment uses a cell whose signal quality parameter value is greater than a preset value as a candidate cell.
  • step 604 the user equipment determines a first weight value corresponding to the time when the candidate cell exists in one or more areas.
  • the first weight value may be broadcast to the user equipment by satellite, or may be determined by the user equipment according to the received target information.
  • step 605 the user equipment determines a second weight value corresponding to the signal quality parameter.
  • step 606 the user equipment determines the value of the product of the value of the signal quality parameter and the second weight value.
  • step 607 the user equipment performs cell selection or cell reselection according to the first weight value and/or the product value.
  • Step 607 may also be replaced by step 607' (not shown in Figure 8).
  • step 607' the user equipment performs cell selection or cell reselection according to the first weight value, the product value and at least one other parameter.
  • the at least one other parameter includes, but is not limited to, a moving speed parameter of the user equipment, a moving speed parameter of a satellite, a moving direction parameter of the user equipment, and a moving direction parameter of the satellite.
  • steps 601 and 602 may be replaced by step 601', and at least one satellite sends target information to the user equipment (not shown in FIG. 8 ).
  • At least one satellite can periodically broadcast a first system message carrying target information, and send the target information to the user equipment, where the first system message can be minimum SI or other SI.
  • the present disclosure further provides an application function implementation device embodiment.
  • FIG. 9 is a block diagram of a satellite communication apparatus according to an exemplary embodiment.
  • the apparatus is used for user equipment, including:
  • a receiving module 710 configured to receive target information sent by at least one satellite; wherein, the target information at least includes the time when a cell of the at least one satellite exists in one or more areas;
  • the execution module 720 is configured to perform cell selection or cell reselection based on at least the target message.
  • FIG. 10 is a block diagram of another satellite communication apparatus according to an exemplary embodiment, the apparatus is used for satellites, and includes:
  • the sending module 810 is configured to send target information, wherein the target information at least includes the time when the cell of the at least one satellite exists in one or more areas.
  • the present disclosure also provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used to execute any one of the satellite communication methods for the user equipment side.
  • the present disclosure also provides a computer-readable storage medium, where the storage medium stores a computer program, and the computer program is used to execute any one of the satellite communication methods described above for the satellite side.
  • the present disclosure also provides a satellite communication device, comprising:
  • the processor is configured to execute the computer program to implement any one of the satellite communication methods described above for the user equipment side.
  • FIG. 11 is a block diagram of an electronic device 1100 according to an exemplary embodiment.
  • the electronic device 1100 may be a mobile phone, a tablet computer, an e-book reader, a multimedia playback device, a wearable device, a vehicle terminal, an ipad, a smart TV, or other terminals.
  • an electronic device 1100 may include one or more of the following components: a processing component 1102, a memory 1104, a power supply component 1106, a multimedia component 1108, an audio component 1110, an input/output (I/O) interface 1112, a sensor component 1116, and communication component 1118.
  • a processing component 1102 a memory 1104, a power supply component 1106, a multimedia component 1108, an audio component 1110, an input/output (I/O) interface 1112, a sensor component 1116, and communication component 1118.
  • the processing component 1102 generally controls the overall operation of the electronic device 1100, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 1102 may include one or more processors 1120 to execute instructions to perform all or part of the steps of the satellite communication method described above.
  • processing component 1102 may include one or more modules that facilitate interaction between processing component 1102 and other components.
  • processing component 1102 may include a multimedia module to facilitate interaction between multimedia component 1108 and processing component 1102.
  • the processing component 1102 may read executable instructions from the memory to implement the steps of a satellite communication method provided by the above embodiments.
  • the memory 1104 is configured to store various types of data to support operation at the electronic device 1100 . Examples of such data include instructions for any application or method operating on the electronic device 1100, contact data, phonebook data, messages, pictures, videos, and the like.
  • Memory 1104 may be implemented by any type of volatile or non-volatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • Power supply assembly 1106 provides power to various components of electronic device 1100 .
  • Power supply components 1106 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to electronic device 1100 .
  • the multimedia component 1108 includes a display screen that provides an output interface between the electronic device 1100 and the user.
  • the multimedia component 1108 includes a front-facing camera and/or a rear-facing camera.
  • the front camera and/or the rear camera may receive external multimedia data.
  • Each of the front and rear cameras can be a fixed optical lens system or have focal length and optical zoom capability.
  • Audio component 1110 is configured to output and/or input audio signals.
  • audio component 1110 includes a microphone (MIC) that is configured to receive external audio signals when electronic device 1100 is in operating modes, such as call mode, recording mode, and voice recognition mode. The received audio signal may be further stored in memory 1104 or transmitted via communication component 1118 .
  • audio component 1110 also includes a speaker for outputting audio signals.
  • the I/O interface 1112 provides an interface between the processing component 1102 and a peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.
  • the sensor assembly 1116 includes one or more sensors for providing various aspects of the status assessment of the electronic device 1100 .
  • the sensor assembly 1116 can detect the open/closed state of the electronic device 1100, the relative positioning of the components, such as the display and the keypad of the electronic device 1100, the sensor assembly 1116 can also detect the electronic device 1100 or one of the electronic device 1100 Changes in the position of components, presence or absence of user contact with the electronic device 1100 , orientation or acceleration/deceleration of the electronic device 1100 and changes in the temperature of the electronic device 1100 .
  • Sensor assembly 1116 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • Sensor assembly 1116 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor assembly 1116 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 1118 is configured to facilitate wired or wireless communications between electronic device 1100 and other devices.
  • the electronic device 1100 may access a wireless network based on a communication standard, such as Wi-Fi, any of 2G, 3G, 4G, 5G or 6G communication technologies, or a combination thereof.
  • the communication component 1118 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 1118 also includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • electronic device 1100 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A programmed gate array (FPGA), controller, microcontroller, microprocessor or other electronic component implementation for implementing the satellite communication method described above.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A programmed gate array
  • controller microcontroller, microprocessor or other electronic component implementation for implementing the satellite communication method described above.
  • a non-transitory machine-readable storage medium including instructions such as a memory 1104 including instructions, is also provided, and the instructions are executable by the processor 1120 of the electronic device 1100 to complete the wireless charging method described above.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.
  • the present disclosure also provides a satellite communication device, comprising:
  • the processor is configured to execute the computer program to implement any one of the satellite communication methods described above for the satellite side.
  • FIG. 12 is a schematic structural diagram of a satellite communication apparatus 1200 according to an exemplary embodiment.
  • the apparatus 1200 may be provided as a satellite. 12, apparatus 1200 includes a processing component 1222, a wireless transmit/receive component 1224, an antenna component 1226, and a signal processing portion specific to a wireless interface, which may further include one or more processors.
  • One of the processors in the processing component 1222 may be configured to perform any of the satellite communication methods described above for the satellite side.

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Abstract

本公开提供一种卫星通信方法及装置、存储介质，其中，所述方法包括：接收至少一个卫星发送的目标信息；其中，所述目标信息至少包括所述至少一个卫星的小区在一个或多个区域中存在的时间；至少基于所述目标消息来进行小区选择或者小区重选。本公开实现了在卫星通信过程中，用户设备基于至少一个卫星的小区在一个或多个区域中存在的时间，进行小区选择或小区重选的目的。

Description

卫星通信方法及装置、存储介质 技术领域
本公开涉及通信领域，尤其涉及卫星通信方法及装置、存储介质。
背景技术
空-天-地-海一体化是一个关键通信技术。空-天-地-海一体化是指由多颗不同轨道上、不同种类、不同性能的卫星形成星座覆盖全球，通过星间、星地链路将地面、海上、空中和深空中的用户、飞行器以及各种通信平台密集联合，采用智能高速星上处理、交换和路由技术，面向光学、红外多谱段的信息，按照信息资源的最大有效综合利用原则，进行信息准确获取、快速处理和高效传输的一体化高速宽带大容量信息网络，即天基、空基和陆基一体化综合网络。
但是现有的通信卫星的数量还比较少，导致了卫星网络的覆盖不是连续的，卫星网络的覆盖区域是随着通信卫星的移动而变化的。
发明内容
为克服相关技术中存在的问题，本公开实施例提供一种卫星通信方法及装置、存储介质。
根据本公开实施例的第一方面，提供一种卫星通信方法，所述方法用于用户设备，包括：
接收至少一个卫星发送的目标信息；其中，所述目标信息至少包括所述至少一个卫星的小区在一个或多个区域中存在的时间；
至少基于所述目标消息来进行小区选择或者小区重选。
可选地，所述接收至少一个卫星发送的目标信息，包括：
接收所述至少一个卫星广播的、携带所述目标信息的第一系统消息。
可选地，所述方法还包括：
发送请求消息；其中，所述请求消息用于请求获取所述目标信息；
所述接收至少一个卫星发送的目标信息，包括：
接收所述至少一个卫星基于所述请求消息，通过单播信令发送给所述用户设备的携带所述目标信息的第二系统消息；或
接收所述至少一个卫星基于所述请求消息，广播的、携带所述目标信息的第二系统消息。
可选地，所述至少基于所述目标消息来进行小区选择或者小区重选，包括：
在所述至少一个卫星的小区中，至少基于信号质量参数和所述目标信息来进行小区选择或者小区重选。
可选地，所述在所述至少一个卫星的小区中，至少基于信号质量参数和所述目标信息来进行小区选择或者小区重选，包括：
在所述至少一个卫星的小区中，将所述信号质量参数的数值大于预设值的小区作为备选小区；
在所述备选小区中，至少基于所述目标信息来进行小区选择或者小区重选。
可选地，所述在所述至少一个卫星的小区中，至少基于信号质量参数和所述目标信息来进行小区选择或者小区重选，包括：
确定所述至少一个卫星的小区在一个或多个区域中存在的时间对应的第一权重值；
至少根据所述第一权重值和所述信号质量参数来进行小区选择或小区重选。
可选地，所述至少根据所述第一权重值和所述信号质量参数来进行小区选择或小区重选，包括：
确定所述信号质量参数对应的第二权重值；
确定所述信号质量参数的数值与所述第二权重值的乘积值；
至少根据所述第一权重值和/或所述乘积值，进行小区选择或小区重选。
可选地，所述在所述至少一个卫星的小区中，至少基于信号质量参数和所述目标信息来进行小区选择或者小区重选，包括：
在所述至少一个卫星的小区中，至少基于信号质量参数、所述目标信息以及至少一个其他参数，来进行小区选择或者小区重选。
可选地，所述确定所述至少一个卫星的小区在一个或多个区域中存在的时间对应的第一权重值，包括：
接收所述至少一个卫星广播的所述第一权重值；或
根据所述至少一个卫星的小区在一个或多个区域中存在的时间，确定所述第一权重值。
根据本公开实施例的第二方面，提供一种卫星通信方法，所述方法用于卫星，包括：
发送目标信息；其中，所述目标信息至少包括所述至少一个卫星的小区在一个或多个区域中存在的时间。
可选地，所述发送目标信息，包括：
广播携带所述目标信息的第一系统消息。
可选地，所述方法还包括：
接收至少一个用户设备发送的请求消息；其中，所述请求消息用于请求获取所述目标信息；
所述发送目标信息，包括：
基于所述请求消息，通过单播信令发送携带所述目标信息的第二系统消息给所述至少一个用户设备；或
基于所述请求消息，广播携带所述目标信息的第二系统消息。
可选地，所述方法还包括：
广播所述卫星的小区在一个或多个区域中存在的时间对应的第一权重值。
根据本公开实施例的第三方面，提供一种卫星通信装置，所述装置用于用户设备，包括：
接收模块，被配置为接收至少一个卫星发送的目标信息；其中，所述目标信息至少包括所述至少一个卫星的小区在一个或多个区域中存在的时间；
执行模块，被配置为至少基于所述目标消息来进行小区选择或者小区重选。
根据本公开实施例的第四方面，提供一种卫星通信装置，所述装置用于卫星，包括：
发送模块，被配置为发送目标信息；其中，所述目标信息至少包括所述至少一个卫星的小区在一个或多个区域中存在的时间。
根据本公开实施例的第五方面，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程序，所述计算机程序用于执行上述第一方面任一所述的卫星通信方法。
根据本公开实施例的第六方面，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程序，所述计算机程序用于执行上述第二方面任一所述的卫星通信方法。
根据本公开实施例的第七方面，提供一种卫星通信装置，包括：
处理器；
用于存储计算机程序的存储器；
其中，所述处理器被配置为执行所述计算机程序以实现上述第一方面任一所述的卫星通信方法。
根据本公开实施例的第八方面，提供一种卫星通信装置，包括：
处理器；
用于存储计算机程序的存储器；
其中，所述处理器被配置为执行所述计算机程序以实现上述第二方面任一所述的卫星通信方法。
本公开的实施例提供的技术方案可以包括以下有益效果：
本公开实施例中，用户设备可以接收至少一个卫星发送的目标信息， 其中，目标信息至少包括所述至少一个卫星的小区在一个或多个区域中存在的时间，进一步地，用户设备至少可以基于接收到的目标信息，来进行小区选择或者小区重选。本公开实施例中，实现了在卫星通信过程中，用户设备基于至少一个卫星的小区在一个或多个区域中存在的时间，进行小区选择或小区重选的目的。
本公开实施例中，用户设备可以接收至少一个卫星广播的携带所述目标信息的第一系统消息，或者用户设备可以发送请求消息，请求获取目标信息，进一步地，用户设备可以接收至少一个卫星基于请求消息，通过单播信令发送的携带所述目标信息的第二系统消息，或者广播的携带所述目标信息的第二系统消息。实现了接收至少一个卫星发送的目标信息的目的，后续用户设备可以根据接收到的目标信息，进行小区选择或者小区重选，可用性高。
本公开实施例中，用户设备可以在至少一个卫星的小区中，至少基于信号质量参数和目标信息进行小区选择或小区重选，在确保小区信号质量的同时，实现了用户设备基于至少一个卫星的小区在一个或多个区域中存在的时间，进行小区选择或小区重选的目的。
本公开实施例中，可以在至少一个卫星的小区中，将信号质量参数的数值大于预设值的小区作为备选小区，进一步地，在备选小区中，至少基于目标信息来进行小区选择或者小区重选，确保了通信质量。
本公开实施例中，可以确定至少一个卫星的小区在一个或多个区域中存在的时间对应的第一权重值，从而至少根据第一权重值和信号质量参数来进行小区选择或小区重选。实现简便，可用性高。
本公开实施例中，用户设备还可以在至少一个卫星的小区中，至少基于信号质量参数、接收到的目标信息以及至少一个其他参数，来进行小区选择或者小区重选。使得用户设备在进行小区选择或小区重选时，可以综合考虑多种因素的影响，最终选择的小区更加合理。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释 性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本发明的实施例，并与说明书一起用于解释本发明的原理。
图1A是根据一示例性实施例示出的一种卫星通信场景示意图。
图1B是根据一示例性实施例示出的另一种卫星通信场景示意图。
图2是根据一示例性实施例示出的一种卫星通信方法流程示意图。
图3是根据一示例性实施例示出的另一种卫星通信方法流程示意图。
图4是根据一示例性实施例示出的另一种卫星通信方法流程示意图。
图5是根据一示例性实施例示出的另一种卫星通信方法流程示意图。
图6是根据一示例性实施例示出的另一种卫星通信方法流程示意图。
图7是根据一示例性实施例示出的另一种卫星通信方法流程示意图。
图8是根据一示例性实施例示出的另一种卫星通信方法流程示意图。
图9是根据一示例性实施例示出的一种卫星通信装置框图。
图10是根据一示例性实施例示出的另一种卫星通信装置框图。
图11是根据一示例性实施例示出的一种卫星通信装置的一结构示意图。
图12是根据一示例性实施例示出的另一种卫星通信装置的一结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本发明的一些方面相一致的装置和方法的例子。
在本公开使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开。在本公开和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本公开可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本公开范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。
在地面通信系统中，用户设备在进行小区选择或重选时，是根据基站的信号质量选择合适的卫星进行接入的，基站位置是固定不变的，覆盖范围也是连续的。但是在卫星通信系统中，卫星相对于地面而言，其位置是移动的，造成卫星的覆盖范围也是移动的，且由于卫星数目较少，覆盖范围之间也不连续。那么如何在卫星通信系统中，合理的进行小区选择或小区重选就是需要解决的问题。
为了解决上述问题，本公开提供了一种卫星通信方案，可以应用在卫星通信场景中。在本公开的卫星通信场景包括但不限于：图1A所示的场景，其中，用户设备之间直接通过卫星进行通信，用户设备与卫星之间的链路称为服务链路。
或者图1B所示的场景，卫星作为中继在接收到基站通过网关发送的信令和/或信息后，将其转发给用户设备，卫星与用户设备直接的链路称为服务连接，卫星与网关之间的链路称为馈线链路。下面先从用户设备侧，介绍一下本公开提供的卫星通信方法。
本公开实施例提供了一种卫星通信方法，该方法用于用户设备，例如终端、个人助手、个人电脑等，参照图2所示，图2是根据一实施例示出 的一种卫星通信方法流程图，该方法可以包括以下步骤：
在步骤101中，接收至少一个卫星发送的目标信息。
在本公开实施例中，目标信息至少包括所述至少一个卫星的小区在一个或多个区域中存在的时间。
在一个示例中，目标信息可以通过卫星的小区在一个或多个区域中存在时，区域标识与存在的时间之间的对应关系来实现，上述对应关系例如表1所示。
表1
区域标识 存在的时间
区域1和区域2 T1-T2
区域3 T3-T4
…… ……
在步骤102中，至少基于所述目标消息来进行小区选择或者小区重选。
上述实施例中，用户设备可以接收至少一个卫星发送的目标信息，其中，目标信息至少包括所述至少一个卫星的小区在一个或多个区域中存在的时间，进一步地，用户设备至少可以基于接收到的目标信息，来进行小区选择或者小区重选。本公开实施例中，实现了在卫星通信过程中，用户设备基于至少一个卫星的小区在一个或多个区域中存在的时间，进行小区选择或小区重选的目的。
在一可选实施例中，针对上述步骤101，用户设备可以接收至少一个卫星广播的、携带所述目标信息的第一系统消息。
其中，第一系统消息可以包括minimum SI(minimum System Information，最少系统消息)，或者other SI(其他系统消息)。minimum SI是终端接入卫星时所需要的最少的系统消息，other SI是除了minimumSI之外的其他的系统消息。
至少一个卫星可以分别周期性广播携带目标信息的minimum SI或 other SI，以便用户设备可以接收到该目标信息。
在一可选实施例中，参照图3所示，图3是根据图2所示的实施例示出的另一种卫星通信方法流程图，该方法还可以包括：
在步骤100中，发送请求消息。
其中，请求消息用于请求获取目标信息。可选地，该请求消息可以是用于请求获取other SI的请求消息。
相应地，步骤101可以包括：
接收所述至少一个卫星基于所述请求消息，通过单播信令发送给所述用户设备的携带所述目标信息的第二系统消息；或
接收所述至少一个卫星基于所述请求消息，广播的、携带所述目标信息的第二系统消息。
在本公开实施例中，卫星在发送目标信息给用户设备时，可以基于上述请求消息，通过单播信令的方式，将携带目标信息的第二系统消息发送给该用户设备，用户设备直接接收即可。或者，卫星在接收到用户设备的上述请求消息后，可以基于所述请求消息，广播携带所述目标信息的第二系统消息，用户设备可以接收卫星周期性广播的携带目标信息的第二系统消息。
其中，在用户设备发起的是用于请求other SI的请求消息的情况下，相应地，卫星发送的是第二系统消息为other SI。
上述实施例中，用户设备可以接收至少一个卫星广播的携带所述目标信息的第一系统消息，或者用户设备可以发送请求消息，请求获取目标信息，进一步地，用户设备可以接收至少一个卫星基于请求消息，通过单播信令发送的携带所述目标信息的第二系统消息，或者广播的携带所述目标信息的第二系统消息。实现了接收至少一个卫星发送的目标信息的目的，后续用户设备可以根据接收到的目标信息，进行小区选择或者小区重选，可用性高。
在一可选实施例中，步骤102可以包括：
在所述至少一个卫星的小区中，至少基于信号质量参数和所述目标信息来进行小区选择或者小区重选。
在本公开实施例中，信号质量参数是用于衡量卫星的小区的信号质量的参数，包括但不限于RSRP(Reference Signal Receiving Power，参考信号接收功率)、RSRQ(Reference Signal Receiving Quality，参考信号接收质量)等。
参照图4所示，图4是根据图2所示的实施例示出的另一种卫星通信方法流程图，步骤102可以包括：
在步骤201中，在所述至少一个卫星的小区中，将所述信号质量参数的数值大于预设值的小区作为备选小区。在本公开实施例中，用户设备可以分别测量至少一个卫星分别对应的信号质量参数的数值。在至少一个卫星的小区中，选择信号质量参数的数值大于预设值的小区作为备选小区。即筛选出信号质量较好的小区作为备选小区。
在步骤202中，在所述备选小区中，至少基于所述目标信息来进行小区选择或者小区重选。
在本公开实施例中，用户设备可以在信号质量较好的备选小区中，至少基于所述目标信息来进行小区选择或者小区重选。
上述实施例中，用户设备可以在至少一个卫星的小区中，将信号质量参数的数值大于预设值的小区作为备选小区，进一步地，在备选小区中，至少根据目标信息，进行小区选择或小区重选，确保了通信质量。
在一可选实施例中，参照图5所示，图5是根据图2所示的实施例示出的另一种卫星通信方法流程图，步骤102可以包括：
在步骤301中，确定所述至少一个卫星的小区在一个或多个区域中存在的时间对应的第一权重值。
在本公开实施例中，用户设备可以采用以下方式中的任意一种确定第一权重值：
第一种方式，接收至少一个卫星广播的所述第一权重值。
在本公开实施例中，可以由至少一个卫星分别为自身的小区在一个或多个区域中存在的时间配置对应的第一权重值，并通过广播信令的方式发送给用户设备，用户设备进行接收。
第二种方式，用户设备根据之前接收到的目标信息，确定第一权重值。
在一个示例中，用户设备可以直接将卫星的小区在一个或多个区域中存在的时间作为第一权重值。
在另一个示例中，小区在一个或多个区域中存在的开始时间越接近当前时间，第一权重值可以越大。
在另一个示例中，可以对卫星的小区在一个或多个区域中存在的时间进行归一化处理，将归一化后得到的数值作为第一权重值。
在步骤302中，至少根据所述第一权重值和所述信号质量参数来进行小区选择或小区重选。
在本公开实施例中，至少可以根据上述的第一权重值和信号质量参数进行小区选择或小区重选。
在一可选实施例中，参照图6所示，图6是根据图5所示的实施例示出的另一种卫星通信方法流程图，步骤302可以包括：
在步骤401中，确定所述信号质量参数对应的第二权重值。
在本公开实施例中，用户设备可以为不同的小区的信号质量参数设定不同的第二权重值，可选地，小区的信号质量参数的数值越高，对应的第二权重值也越大。
在步骤402中，确定所述信号质量参数的数值与所述第二权重值的乘积值。
在本公开实施例中，可以将不同的小区的信号质量参数的数值与对应的第二权重值相乘获得，得到乘积值。
在步骤403中，至少根据所述第一权重值和/或所述乘积值，进行小区选择或小区重选。
在本公开实施例中，进行小区选择或小区重选时，可以选择第一权重 值最大的小区，即选择小区存在的时间最长的小区，或者可以选择乘积值最大的小区，即选择信号质量最好的小区，或者还可以选择信号质量、小区存在的时间综合考虑后最佳的小区。
上述实施例中，可以确定至少一个卫星的小区在一个或多个区域中存在的时间对应的第一权重值，从而至少根据第一权重值和信号质量参数来进行小区选择或小区重选。实现简便，可用性高。
在一可选实施例中，上述步骤102可以包括：
在所述至少一个卫星的小区中，至少基于信号质量参数、所述目标信息以及至少一个其他参数，来进行小区选择或者小区重选。
在本公开实施例中，至少一个其他参数包括但不限于用户设备的移动速度参数、卫星的移动速度参数、用户设备的移动方向参数、卫星的移动方向参数。其中，卫星的移动速度参数和/或卫星的移动方向参数可以是卫星通过广播信令发送给用户设备的。
在本公开实施例中，可以根据信号质量参数、所述目标信息以及至少一个其他参数，对至少一个卫星的小区进行排序，进行小区选择或小区重选时，可以按照有前到后的顺序进行选择。
信号质量参数的数值越高，对应的小区的排序越靠前，同样地，小区存在的时间越长，排序也越靠前，卫星与用户设备的移动方向相同或两者相向而行，卫星移动速度越快和/或用户设备移动速度越快，那么对应的小区排序也越靠前。
上述实施例中，用户设备还可以在至少一个卫星的小区中，至少基于信号质量参数、接收到的目标信息以及至少一个其他参数，来进行小区选择或者小区重选。使得用户设备在进行小区选择或小区重选时，可以综合考虑多种因素的影响，最终选择的小区更加合理。
下面再从卫星侧，介绍一下本公开提供的卫星通信方法。本公开实施例提供了一种卫星通信方法，该方法用于卫星，该方法可以包括以下步骤：
在步骤501中，发送目标信息。
在本公开实施例中，目标信息至少包括所述至少一个卫星的小区在一个或多个区域中存在的时间。
上述实施例中，卫星可以发送目标信息，其中，目标信息至少包括所述至少一个卫星的小区在一个或多个区域中存在的时间。用户设备在接收到至少一个卫星发送的目标信息后，可以基于接收到的目标信息，进行小区选择或小区重选，可用性高。
针对上述步骤501，在一个示例中，卫星可以通过第一系统消息将目标信息广播给用户设备。其中，第一系统消息可以包括minimum SI或者other SI。
卫星可以按照预设周期，广播携带目标信息的第一系统消息，以便用户设备进行接收。
在另一个示例中，卫星可以根据至少一个用户设备发送的请求消息，将目标信息发送给至少一个用户设备。
在本公开实施例中，卫星可以接收至少一个用户设备发送的请求消息，该请求消息用于请求获取目标信息。其中，该请求消息可以是用于请求other SI的请求消息。
卫星在发送目标信息给用户设备时，可以基于上述请求消息，通过单播信令的方式，将携带目标信息的第二系统消息发送给发起请求的至少一个用户设备。
或者，卫星在接收到用户设备的上述请求消息后，可以基于所述请求消息，广播携带所述目标信息的第二系统消息。
其中，如果用户设备发起的是other SI请求消息，那么相应地，卫星发送的第二系统消息是携带目标信息的other SI。
在上述实施例中，卫星可以广播携带目标信息的第一系统消息，或者卫星可以根据至少一个用户设备发送的请求消息，通过单播信令的方式将携带目标信息的第二系统消息发送给用户设备，或者卫星还可以根据至少一个用户发送的请求消息，广播携带目标信息的第二系统消息。本公开通 过系统消息将目标信息发送给用户设备，以便用户设备根据目标信息，进行小区选择或者小区重选。
在一可选实施例中，参照图7所示，图7是根据一实施例示出的另一种卫星通信方法流程图，该方法可以包括以下步骤：
在步骤502中，广播所述卫星的小区在一个或多个区域中存在的时间对应的第一权重值。
在本公开实施例中，卫星可以根据小区在一个或多个区域中存在的时间，配置对应的第一权重值。可选地，存在的时间越长，第一权重值可以越大。在一个示例中，可以将小区存在的时间作为所述第一权重值。在另一个示例中，小区在一个或多个区域中存在的开始时间越接近当前时间，第一权重值可以越大。在另一个示例中，可以对小区存在的时间进行归一化处理，将归一化后得到的数值作为所述第一权重值。
进一步地，卫星可以广播第一权重值。以便后续用户设备至少根据接收到的第一权重值和所述信号质量参数来进行小区选择或小区重选，可用性高。
在一可选实施例中，如果用户设备还结合至少一个其他参数，进行小区选择或者小区重选，那么卫星还可以将自身的移动速度参数和/或所述卫星的移动方向参数，通过广播的方式进行发送，以便用户设备接收后综合考虑后进行小区选择或小区重选。
在一可选实施例中，参照图8，图8据一实施例示出的另一种卫星通信方法流程图，图8中至少一个卫星仅以卫星1和卫星2为例进行说明，实际应用中，卫星的数目可以为更多。该方法可以包括以下步骤：
在步骤601中，用户设备发送请求消息。
其中，所述请求消息用于请求获取卫星的目标信息，目标信息至少包括所述至少一个卫星的小区在一个或多个区域中存在的时间，该请求消息为用于请求other SI的请求消息。
在步骤602中，至少一个卫星基于所述请求消息，发送目标信息。
在本公开实施例中，卫星可以通过单播信令将携带目标信息的第二系统消息发送给该用户设备，也可以周期性广播携带目标信息的第二系统消息。这里的第二系统消息为other SI。
在步骤603中，用户设备在所述至少一个卫星的小区中，将信号质量参数的数值大于预设值的小区作为备选小区。
在步骤604中，用户设备确定所述备选小区在一个或多个区域中存在的时间对应的第一权重值。
在本公开实施例中，第一权重值可以由卫星广播给用户设备，也可以由用户设备根据接收到的目标信息确定。
在步骤605中，用户设备确定所述信号质量参数对应的第二权重值。
在步骤606中，用户设备确定所述信号质量参数的数值与所述第二权重值的乘积值。
在步骤607中，用户设备根据所述第一权重值和/或所述乘积值，进行小区选择或小区重选。
步骤607也可以替换为步骤607’(图8中未示出)。
在步骤607’中，用户设备根据所述第一权重值、所述乘积值和至少一个其他参数，进行小区选择或小区重选。
其中，至少一个其他参数包括但不限于用户设备的移动速度参数、卫星的移动速度参数、用户设备的移动方向参数、卫星的移动方向参数。
在一可选实施例中，在其他步骤不变的情况下，上述步骤601和步骤602可以替换为步骤601’，至少一个卫星向所述用户设备发送目标信息(图8中未示出)。
其中，至少一个卫星可以通过周期性的广播携带目标信息的第一系统消息，将目标信息发送给用户设备，这里的第一系统消息可以是minimum SI，也可以是other SI。
上述实施例中，在确保了通信质量的同时，至少根据至少一个卫星的小区在一个或多个区域中存在的时间，进行小区选择或者小区重选，可用 性高。与前述应用功能实现方法实施例相对应，本公开还提供了应用功能实现装置的实施例。
参照图9，图9是根据一示例性实施例示出的一种卫星通信装置框图，所述装置用于用户设备，包括：
接收模块710，被配置为接收至少一个卫星发送的目标信息；其中，所述目标信息至少包括所述至少一个卫星的小区在一个或多个区域中存在的时间；
执行模块720，被配置为至少基于所述目标消息来进行小区选择或者小区重选。
参照图10，图10是根据一示例性实施例示出的另一种卫星通信装置框图，所述装置用于卫星，包括：
发送模块810，被配置为发送目标信息；其中，所述目标信息至少包括所述至少一个卫星的小区在一个或多个区域中存在的时间。
对于装置实施例而言，由于其基本对应于方法实施例，所以相关之处参见方法实施例的部分说明即可。以上所描述的装置实施例仅仅是示意性的，其中上述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本公开方案的目的。本领域普通技术人员在不付出创造性劳动的情况下，即可以理解并实施。
相应地，本公开还提供了一种计算机可读存储介质，所述存储介质存储有计算机程序，所述计算机程序用于执行用于用户设备侧的任一所述的卫星通信方法。
相应地，本公开还提供了一种计算机可读存储介质，所述存储介质存储有计算机程序，所述计算机程序用于执行上述用于卫星侧的任一所述的卫星通信方法。
相应地，本公开还提供了一种卫星通信装置，包括：
处理器；
用于存储计算机程序的存储器；
其中，所述处理器被配置为执行所述计算机程序以实现上述用于用户设备侧任一所述的卫星通信方法。
图11是根据一示例性实施例示出的一种电子设备1100的框图。例如电子设备1100可以是手机、平板电脑、电子书阅读器、多媒体播放设备、可穿戴设备、车载终端、ipad、智能电视等终端。
参照图11，电子设备1100可以包括以下一个或多个组件：处理组件1102，存储器1104，电源组件1106，多媒体组件1108，音频组件1110，输入/输出(I/O)接口1112，传感器组件1116，以及通信组件1118。
处理组件1102通常控制电子设备1100的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件1102可以包括一个或多个处理器1120来执行指令，以完成上述的卫星通信方法的全部或部分步骤。此外，处理组件1102可以包括一个或多个模块，便于处理组件1102和其他组件之间的交互。例如，处理组件1102可以包括多媒体模块，以方便多媒体组件1108和处理组件1102之间的交互。又如，处理组件1102可以从存储器读取可执行指令，以实现上述各实施例提供的一种卫星通信方法的步骤。
存储器1104被配置为存储各种类型的数据以支持在电子设备1100的操作。这些数据的示例包括用于在电子设备1100上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器1104可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电源组件1106为电子设备1100的各种组件提供电力。电源组件1106可以包括电源管理系统，一个或多个电源，及其他与为电子设备1100生成、 管理和分配电力相关联的组件。
多媒体组件1108包括在所述电子设备1100和用户之间的提供一个输出接口的显示屏。在一些实施例中，多媒体组件1108包括一个前置摄像头和/或后置摄像头。当电子设备1100处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件1110被配置为输出和/或输入音频信号。例如，音频组件1110包括一个麦克风(MIC)，当电子设备1100处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器1104或经由通信组件1118发送。在一些实施例中，音频组件1110还包括一个扬声器，用于输出音频信号。
I/O接口1112为处理组件1102和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件1116包括一个或多个传感器，用于为电子设备1100提供各个方面的状态评估。例如，传感器组件1116可以检测到电子设备1100的打开/关闭状态，组件的相对定位，例如所述组件为电子设备1100的显示器和小键盘，传感器组件1116还可以检测电子设备1100或电子设备1100一个组件的位置改变，用户与电子设备1100接触的存在或不存在，电子设备1100方位或加速/减速和电子设备1100的温度变化。传感器组件1116可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件1116还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件1116还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件1118被配置为便于电子设备1100和其他设备之间有线或无 线方式的通信。电子设备1100可以接入基于通信标准的无线网络，如Wi-Fi，2G，3G，4G，5G或6G任一代通信技术，或它们的组合。在一个示例性实施例中，通信组件1118经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件1118还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，电子设备1100可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述卫星通信方法。
在示例性实施例中，还提供了一种包括指令的非临时性机器可读存储介质，例如包括指令的存储器1104，上述指令可由电子设备1100的处理器1120执行以完成上述无线充电方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
相应地，本公开还提供了一种卫星通信装置，包括：
处理器；
用于存储计算机程序的存储器；
其中，所述处理器被配置为执行所述计算机程序以实现上述用于卫星侧任一所述的卫星通信方法。
如图12所示，图12是根据一示例性实施例示出的一种卫星通信装置1200的一结构示意图。装置1200可以被提供为卫星。参照图12，装置1200包括处理组件1222、无线发射/接收组件1224、天线组件1226、以及无线接口特有的信号处理部分，处理组件1222可进一步包括一个或多个处理器。
处理组件1222中的其中一个处理器可以被配置为执行上述用于卫星侧的任一所述的卫星通信方法。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本公开旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或者惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (19)

  1. 一种卫星通信方法，其特征在于，所述方法用于用户设备，包括：
    接收至少一个卫星发送的目标信息；其中，所述目标信息至少包括所述至少一个卫星的小区在一个或多个区域中存在的时间；
    至少基于所述目标消息来进行小区选择或者小区重选。
  2. 根据权利要求1所述的方法，其特征在于，所述接收至少一个卫星发送的目标信息，包括：
    接收所述至少一个卫星广播的、携带所述目标信息的第一系统消息。
  3. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    发送请求消息；其中，所述请求消息用于请求获取所述目标信息；
    所述接收至少一个卫星发送的目标信息，包括：
    接收所述至少一个卫星基于所述请求消息，通过单播信令发送给所述用户设备的、携带所述目标信息的第二系统消息；或
    接收所述至少一个卫星基于所述请求消息，广播的、携带所述目标信息的第二系统消息。
  4. 根据权利要求1所述的方法，其特征在于，所述至少基于所述目标消息来进行小区选择或者小区重选，包括：
    在所述至少一个卫星的小区中，至少基于信号质量参数和所述目标信息来进行小区选择或者小区重选。
  5. 根据权利要求4所述的方法，其特征在于，在所述至少一个卫星的小区中，至少基于信号质量参数和所述目标信息来进行小区选择或者小区重选，包括：
    在所述至少一个卫星的小区中，将所述信号质量参数的数值大于预设值的小区作为备选小区；
    在所述备选小区中，至少基于所述目标信息来进行小区选择或者小区重选。
  6. 根据权利要求4所述的方法，其特征在于，所述在所述至少一个卫星的小区中，至少基于信号质量参数和所述目标信息来进行小区选择或者小区重选，包括：
    确定所述至少一个卫星的小区在一个或多个区域中存在的时间对应的第一权重值；
    至少根据所述第一权重值和所述信号质量参数来进行小区选择或小区重选。
  7. 根据权利要求6所述的方法，其特征在于，所述至少根据所述第一权重值和所述信号质量参数来进行小区选择或小区重选，包括：
    确定所述信号质量参数对应的第二权重值；
    确定所述信号质量参数的数值与所述第二权重值的乘积值；
    至少根据所述第一权重值和/或所述乘积值，进行小区选择或小区重选。
  8. 根据权利要求4所述的方法，其特征在于，所述在所述至少一个卫星的小区中，至少基于信号质量参数和所述目标信息来进行小区选择或者小区重选，包括：
    在所述至少一个卫星的小区中，至少基于信号质量参数、所述目标信息以及至少一个其他参数，来进行小区选择或者小区重选。
  9. 根据权利要求6-8任一项所述的方法，其特征在于，所述确定所述至少一个卫星的小区在一个或多个区域中存在的时间对应的第一权重值，包括：
    接收所述至少一个卫星广播的所述第一权重值；或
    根据所述至少一个卫星的小区在一个或多个区域中存在的时间，确定所述第一权重值。
  10. 一种卫星通信方法，其特征在于，所述方法用于卫星，包括：
    发送目标信息；其中，所述目标信息至少包括所述至少一个卫星的小区在一个或多个区域中存在的时间。
  11. 根据权利要求10所述的方法，其特征在于，所述发送目标信息， 包括：
    广播携带所述目标信息的第一系统消息。
  12. 根据权利要求11所述的方法，其特征在于，所述方法还包括：
    接收至少一个用户设备发送的请求消息；其中，所述请求消息用于请求获取所述目标信息；
    所述发送目标信息，包括：
    基于所述请求消息，通过单播信令发送携带所述目标信息的第二系统消息给所述至少一个用户设备；或
    基于所述请求消息，广播携带所述目标信息的第二系统消息。
  13. 根据权利要求10所述的方法，其特征在于，所述方法还包括：
    广播所述卫星的小区在一个或多个区域中存在的时间对应的第一权重值。
  14. 一种卫星通信装置，其特征在于，所述装置用于用户设备，包括：
    接收模块，被配置为接收至少一个卫星发送的目标信息；其中，所述目标信息至少包括所述至少一个卫星的小区在一个或多个区域中存在的时间；
    执行模块，被配置为至少基于所述目标消息来进行小区选择或者小区重选。
  15. 一种卫星通信装置，其特征在于，所述装置用于卫星，包括：
    发送模块，被配置为发送目标信息；其中，所述目标信息至少包括所述至少一个卫星的小区在一个或多个区域中存在的时间。
  16. 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程序，所述计算机程序用于执行上述权利要求1-9任一所述的卫星通信方法。
  17. 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程序，所述计算机程序用于执行上述权利要求10-13任一所述的卫星通信方法。
  18. 一种卫星通信装置，其特征在于，包括：
    处理器；
    用于存储计算机程序的存储器；
    其中，所述处理器被配置为执行所述计算机程序以实现上述权利要求1-9任一所述的卫星通信方法。
  19. 一种卫星通信装置，其特征在于，包括：
    处理器；
    用于存储计算机程序的存储器；
    其中，所述处理器被配置为执行所述计算机程序以实现上述权利要求10-13任一所述的卫星通信方法。
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