WO2024108434A1 - 卫星覆盖信息获取方法及装置 - Google Patents

卫星覆盖信息获取方法及装置 Download PDF

Info

Publication number
WO2024108434A1
WO2024108434A1 PCT/CN2022/133781 CN2022133781W WO2024108434A1 WO 2024108434 A1 WO2024108434 A1 WO 2024108434A1 CN 2022133781 W CN2022133781 W CN 2022133781W WO 2024108434 A1 WO2024108434 A1 WO 2024108434A1
Authority
WO
WIPO (PCT)
Prior art keywords
network element
satellite
information
coverage information
satellite coverage
Prior art date
Application number
PCT/CN2022/133781
Other languages
English (en)
French (fr)
Inventor
毛玉欣
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.)
Filing date
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 PCT/CN2022/133781 priority Critical patent/WO2024108434A1/zh
Publication of WO2024108434A1 publication Critical patent/WO2024108434A1/zh

Links

Images

Classifications

    • 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

Definitions

  • the present disclosure relates to the field of mobile communication technology, and in particular to a method and device for acquiring satellite coverage information.
  • the 5G core network supports user terminals accessing the network via satellite. If satellite access is used to provide network services to users, there may be a situation where there is no satellite signal coverage during a specific period of time. At this time, the network needs to obtain the satellite coverage of the terminal so that the network can determine the behavior of the UE during the period when the current satellite network signal is lost based on the satellite coverage information.
  • the Radio Access Network RAN
  • the Radio Access Network can only obtain the ephemeris information of the four satellites adjacent to the current access location. Therefore, the ephemeris information may not be sufficient to determine the satellite signal coverage of the UE at the current location or related to the movement trajectory. It is not clear how the network can obtain more comprehensive satellite coverage information.
  • the present disclosure proposes a method and device for acquiring satellite coverage information, so that a core network element can acquire satellite coverage information from a network element function for managing satellite network operation information, thereby enhancing communication performance.
  • a first aspect embodiment of the present disclosure provides a method for acquiring satellite coverage information, which is executed by a second network element.
  • the method includes: sending a request message to a first network element, wherein the request message is used to request satellite coverage information related to a user equipment UE, and the request message can indicate at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographic location information, the specified time information, and the satellite access type information, and the satellite coverage information related to the UE can indicate the situation in which the satellite signal covers the UE; and receiving the satellite coverage information related to the UE sent by the first network element.
  • sending a request message to the first network element includes: receiving a satellite coverage information request sent by a UE; and sending a request message to the first network element in response to the satellite coverage information request.
  • sending the request message to the first network element includes: determining that satellite coverage information related to the user equipment UE needs to be acquired, and sending the request message to the first network element.
  • the second network element sending the request message to the first network element includes: sending the request message to the first network element through a network opening function NEF or a service capability opening function SCEF.
  • the second network element receiving the UE-related satellite coverage information sent by the first network element includes: receiving the UE-related satellite coverage information from the first network element through a network open function NEF or a service capability open function SCEF.
  • the second network element when the network where the second network element is located is a 5G core network, the second network element is an access and mobility management function AMF or a unified data management function UDM; when the network where the second network element is located is an EPC network, the second network element is a mobile management entity MME or a home subscriber service HSS.
  • the method when the second network element is a unified data management function UDM or a home subscriber server HSS, the method also includes: obtaining at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographic location information, the specified time information, and the satellite access type information from the access and mobility management function AMF or the mobile management entity MME.
  • the method when the second network element is a unified data management function UDM or a home subscriber server HSS, the method also includes: receiving a UE-related satellite coverage information request sent by an access and mobility management function AMF or a mobile management entity MME; and returning UE-related satellite coverage information to the AMF or MME.
  • receiving UE-related satellite coverage information sent by the first network element also includes: subscribing to the UE-related satellite coverage information to the first network element, the subscription message can indicate at least one of the UE's current location information, the UE's motion trajectory information, the specified geographic location information, the specified time information, and the satellite access type information; receiving the UE-related satellite coverage information determined by the first network element based on the subscription.
  • the UE-related satellite coverage information includes at least one of the following: whether the satellite network has signal coverage at a specified location and/or specified time; the duration of signal coverage; and the duration of no signal coverage.
  • a second aspect embodiment of the present disclosure provides a method for acquiring satellite coverage information, the method comprising: receiving a request message sent by a second network element, wherein the request message is used to request satellite coverage information related to a user equipment UE, the request message includes at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographical location information, the specified time information, and the satellite access type information, and the satellite coverage information related to the UE can indicate the situation in which the satellite signal covers the UE; determining the satellite coverage information related to the UE according to the request message and the satellite operation information of the satellite access network; and sending the satellite coverage information related to the UE to the second network element.
  • receiving the request message sent by the second network element includes: receiving the request message sent by the second network element through a network opening function NEF or a service capability opening function SCEF.
  • sending the satellite coverage information related to the UE to the second network element includes: sending the satellite coverage information related to the UE to the second network element through a network open function NEF or a service capability open function SCEF.
  • sending UE-related satellite coverage information to the second network element also includes: receiving a subscription request for UE-related satellite coverage information from the second network element, the subscription request can indicate at least one of the UE's current location information, UE's motion trajectory information, specified geographic location information, specified time information, and satellite access type information; and sending the UE-related satellite coverage information determined by the first network element based on the subscription.
  • a third aspect embodiment of the present disclosure provides a satellite coverage information acquisition device, which includes a transceiver module, and the transceiver module is used to: send a request message to a first network element, wherein the request message is used to request satellite coverage information related to a user equipment UE, and the request message includes at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographic location information, the specified time information, and the satellite access type information, and the satellite coverage information related to the UE can indicate the situation in which the satellite signal covers the UE; receive the satellite coverage information related to the UE sent by the first network element.
  • the fourth aspect embodiment of the present disclosure provides a satellite coverage information acquisition device, which includes: a transceiver module, which is used to receive a request message sent by a second network element, wherein the request message is used to request satellite coverage information related to a user equipment UE, and the request message includes at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographical location information, the specified time information, and the satellite access type information, and the satellite coverage information related to the UE can indicate the situation in which the satellite signal covers the UE; a determination module, which is used to determine the satellite coverage information related to the UE based on the request message and the satellite operation information of the satellite access network; the transceiver module is also used to send the satellite coverage information related to the UE to the second network element.
  • a transceiver module which is used to receive a request message sent by a second network element, wherein the request message is used to request satellite coverage information related to a user equipment UE, and the request message includes at least one of the
  • the fifth aspect embodiment of the present disclosure provides a communication system, which includes a first network element and a second network element, wherein: the second network element is configured to execute the method described in the first aspect embodiment of the present disclosure; the first network element is configured to execute the method described in the second aspect embodiment of the present disclosure.
  • the sixth aspect embodiment of the present disclosure provides a communication device, including: a transceiver; a memory; a processor, which is connected to the transceiver and the memory respectively, and is configured to control the wireless signal reception and transmission of the transceiver by executing computer-executable instructions on the memory, and can implement the method described in the first aspect embodiment or the second aspect embodiment of the present disclosure.
  • the seventh aspect embodiment of the present disclosure proposes a computer storage medium, wherein the computer storage medium stores computer executable instructions; after the computer executable instructions are executed by the processor, the method described in the first aspect embodiment or the second aspect embodiment of the present disclosure can be implemented.
  • the embodiment of the present disclosure provides a method and device for obtaining satellite coverage information, wherein a second network element can send a request message to a first network element, wherein the request message is used to request satellite coverage information related to a user equipment UE, and the request message includes at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographical location information, the specified time information, and the satellite access type information, and receives the satellite coverage information related to the UE from the first network element.
  • the scheme of the present disclosure enables the core network network element to obtain satellite coverage information from the network element function for managing satellite network operation information, thereby enhancing communication performance.
  • FIG1 is a schematic diagram of a flow chart of a method for acquiring satellite coverage information according to an embodiment of the present disclosure
  • FIG2 is a schematic diagram of a flow chart of a method for acquiring satellite coverage information according to an embodiment of the present disclosure
  • FIG3 is a schematic diagram of a flow chart of a method for acquiring satellite coverage information according to an embodiment of the present disclosure
  • FIG4 is a schematic diagram of a flow chart of a method for acquiring satellite coverage information according to an embodiment of the present disclosure
  • FIG5 is a schematic diagram of a flow chart of a method for acquiring satellite coverage information according to an embodiment of the present disclosure
  • FIG6 is an interactive schematic diagram of a method for acquiring satellite coverage information according to an embodiment of the present disclosure
  • FIG7 is an interactive schematic diagram of a method for acquiring satellite coverage information according to an embodiment of the present disclosure
  • FIG8 is a block diagram of a device for acquiring satellite coverage information according to an embodiment of the present disclosure.
  • FIG9 is a block diagram of a device for acquiring satellite coverage information according to an embodiment of the present disclosure.
  • FIG10 is a block diagram of a device for acquiring satellite coverage information according to an embodiment of the present disclosure.
  • FIG11 is a schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure.
  • FIG. 12 is a schematic diagram of the structure of a chip provided in an embodiment of the present disclosure.
  • the 5G core network supports user terminals accessing the network via satellite. If satellite access is used to provide network services to users, satellite access may be affected by the coverage of satellite beams and the insufficient number of satellites in Starlink.
  • the signal coverage provided to the ground may be discontinuous, that is, when users access the network via satellite in a certain area, there is a situation where there is no satellite signal coverage for a certain period of time. For example, after the user equipment (UE) obtains 20 minutes of satellite access signal coverage, it will take 10 hours for it to obtain another 20 minutes of signal coverage.
  • UE user equipment
  • the UE can enter the power saving mode, or the UE can also select other available satellite access. Therefore, when the UE is about to lose the current satellite network signal, the network needs to obtain the satellite coverage of the UE so that the network can determine the behavior of the UE during the period when the current satellite network signal is lost based on the satellite coverage information, such as deciding the power saving parameters, allowing the UE to enter the power saving mode during the period when the current satellite signal is lost, or guiding the UE to use other available satellite access networks when the current satellite network signal is lost.
  • RAN can only obtain the ephemeris information of the four satellites near the current access location, so the ephemeris information may not be sufficient to determine the satellite coverage information related to the UE. For example, when it is necessary to determine the satellite coverage information related to the UE based on the movement trajectory of the UE, the future designated location of the UE is not covered by the currently broadcast ephemeris information. Therefore, how the network can obtain more comprehensive satellite coverage information is a problem that needs to be solved.
  • the present disclosure proposes a method and device for obtaining satellite coverage information, so that core network elements can obtain satellite coverage information from network element functions for managing satellite network operation information, thereby enhancing communication performance.
  • FIG1 shows a flow chart of a method for acquiring satellite coverage information according to an embodiment of the present disclosure.
  • the method can be executed by a second network element.
  • the second network element can be an access and mobility management function (AMF), a mobility management entity (MME), a unified data management function (UDM), or a home subscriber server (HSS).
  • AMF access and mobility management function
  • MME mobility management entity
  • UDM unified data management function
  • HSS home subscriber server
  • the method may include the following steps.
  • the first network element includes an application function (AF), a satellite information management server, a satellite operation management center operation administration and maintenance (OAM), and other network elements for managing satellite network operation information.
  • AF application function
  • OAM satellite operation management center operation administration and maintenance
  • the request message is used to request satellite coverage information related to the user equipment UE, and the request message can indicate at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographic location information, the specified time information, and the satellite access type information.
  • the request message described in the present disclosure can be sent by explicit indication, for example, the request message includes at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographic location information, the specified time information, and the satellite access type information; it can also be sent by implicit indication, for example, the request message includes other information or parameters that can determine or obtain at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographic location information, the specified time information, and the satellite access type information.
  • the following embodiments of the present disclosure are exemplified in the form of display indications, but do not limit the scope of the present disclosure.
  • the UE motion trajectory information can be represented by key positions on the motion trajectory, and the trajectory information can be obtained from the Network Data Analytics Function (NWDAF).
  • NWDAAF Network Data Analytics Function
  • the specified time information represents a specified time point or time period, and is used to request satellite coverage information at the specified time point/time period.
  • the satellite access type (satellite RAT) information is used to request coverage information of all satellite access networks under the satellite access type (e.g., LEO).
  • the above information can be used in combination, for example: if the request message contains the specified geographic location information, the specified time information and the satellite access type, it means that the second network element requests the first network element for the coverage information of all satellite access networks at the specified time point at the geographic location. For another example, if the request message contains the movement trajectory information of the UE and the satellite access type, it means that the second network element requests the first network element for the coverage information of the satellite access network specified by the satellite access type on the movement trajectory. For another example, if the request message contains the current location information of the UE, it means that the second network element requests the first network element to use the coverage information of the current satellite access at the current location.
  • S102 Receive satellite coverage information related to the UE sent by the first network element.
  • the first network element may determine the satellite coverage information related to the UE according to the information contained in the request message (i.e., the above) and in combination with the satellite operation information of the satellite access network.
  • the satellite coverage information related to the UE can indicate the situation where the satellite signal covers the UE, that is, whether the UE is covered by the satellite signal, which satellites are available, at what location and at what time it can or cannot be covered by the satellite signal, etc.
  • the coverage information of all available satellite access networks of the UE at location 1 the coverage information of the current satellite access network of the UE at time 1 and time 2 at location 1 and location 2, etc., which are not limited by the present disclosure.
  • the request message if the request message does not carry the satellite access type, it indicates that the coverage information of the satellite network currently accessed by the UE is requested.
  • the UE-related satellite coverage information includes at least one of the following: whether the satellite network has signal coverage at a specified location and/or specified time; the duration of signal coverage; and the duration of no signal coverage.
  • the first network element returns the satellite coverage information related to the UE to the second network element.
  • the second network element can send a request message to the first network element, wherein the request message is used to request satellite coverage information related to the user equipment UE, and the request message includes at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographical location information, the specified time information, and the satellite access type information, and receives the satellite coverage information related to the UE from the first network element.
  • the solution of the present disclosure enables the core network network element to obtain satellite coverage information from the network element function for managing satellite network operation information, thereby enhancing communication performance.
  • FIG2 shows a schematic flow chart of a method for acquiring satellite coverage information according to an embodiment of the present disclosure.
  • the method may be executed by a second network element. Based on the embodiment shown in FIG1 , this embodiment mainly describes the case where the second network element is an AMF or MME. As shown in FIG2 , the method may include the following steps.
  • S201 Receive a satellite coverage information request sent by the UE.
  • the second network element AMF/MME may receive a request for satellite coverage information from the UE, for example, the UE requests satellite coverage information from the AMF/MME by initiating initial registration, periodic registration, registration update, or PDU session operation.
  • the satellite coverage information request sent by the UE to the second network element is used to request the second network element for satellite coverage information related to the UE.
  • the satellite coverage information request may include at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographic location information, the specified time information, and the satellite access type information.
  • NEF network exposure function
  • SCEF service capability exposure function
  • the second network element may send a request message to the first network element in response to the satellite coverage information request.
  • the request message is used to request the first network element for satellite coverage information related to the UE, and the request message includes at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographical location information, the specified time information, and the satellite access type information.
  • the "second network element sends a request message to the first network element through NEF or SCEF" stated in the present disclosure can be understood as the second network element subscribing to (or requesting) UE-related satellite coverage information from NEF or SCEF, and NEF or SCEF then subscribes to or requests UE-related satellite coverage information from the first network element.
  • the second network element sending the request message to the first network element may be triggered by the above steps S201 and S202, or may be triggered by the following method:
  • the second network element may determine that it is necessary to obtain the satellite coverage information related to the user equipment UE, and thus send the request message to the first network element.
  • the request message can be sent to the first network element.
  • the request message can be sent to the first network element through NEF/SCEF.
  • S203 Receive satellite coverage information related to the UE from the first network element through the NEF or SCEF.
  • the "receiving UE-related satellite coverage information from the first network element through NEF or SCEF" stated in the present disclosure can be understood as the first network element feeding back UE-related satellite coverage information to NEF or SCEF, and NEF or SCEF then feeds back UE-related satellite coverage information to the second network element.
  • the UE-related satellite coverage information includes at least one of the following: whether the satellite network has signal coverage at a specified location and/or specified time; the duration of signal coverage; and the duration of no signal coverage.
  • the second network element may be AMF/MME, and AMF/MME may receive the satellite coverage information request sent by the UE, and in response to the satellite coverage information request, send the request message to the first network element through NEF/SCEF, or may determine that it is necessary to obtain the satellite coverage information related to the user equipment UE, and send the request message to the first network element, and AMF/MME receives the satellite coverage information related to the UE from the first network element through NEF or SCEF.
  • the solution of the present disclosure enables the core network network element to obtain satellite coverage information from the network element function for managing satellite network operation information, broadens the way to obtain satellite coverage information related to the UE, and thus enhances communication performance.
  • FIG3 shows a schematic flow chart of a method for acquiring satellite coverage information according to an embodiment of the present disclosure.
  • the method can be executed by a second network element. Based on the embodiment shown in FIG1 , this embodiment mainly describes the case where the second network element is a UDM or HSS. As shown in FIG2 , the method can include the following steps.
  • the above step S301 is an optional step.
  • the UDM/HSS may obtain any of the above information from the AMF/MME, and the above information may be used by the UDM/HSS after being provided to the UDM/HSS, for example, for subsequent request of satellite coverage information, and may also be used for other purposes, which are not limited in the present disclosure.
  • the UDM/HSS may receive a satellite coverage information request from the AMF/MME, where the satellite coverage information request is used by the AMF/MME to request the UDM/HSS for satellite coverage information related to the UE.
  • the satellite coverage information request may include at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographic location information, the specified time information, and the satellite access type information.
  • the request message is used by the UDM/HSS to request the first network element for satellite coverage information related to the UE.
  • the request message includes at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographic location information, the specified time information, and the satellite access type information.
  • the UDM/HSS can send a request message to the first network element through the NEF/SCEF.
  • the UDM/HSS can subscribe to (or request) the satellite coverage information related to the UE from the NEF or SCEF, and the NEF or SCEF can subscribe to or request the satellite coverage information related to the UE from the first network element.
  • the UDM/HSS can receive the UE-related satellite coverage information sent by the first network element through the NEF/SCEF.
  • the first network element can feedback the UE-related satellite coverage information to the NEF or SCEF, and the NEF or SCEF then feedbacks the UE-related satellite coverage information to the UDM/HSS.
  • the UDM/HSS may subscribe to the first network element for the satellite coverage information related to the UE, and the subscription message may indicate at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographic location information, the specified time information, and the satellite access type information.
  • the first network element may determine the satellite coverage information related to the UE according to the subscription, and send it to the UDM/HSS.
  • the UE-related satellite coverage information includes at least one of the following: whether the satellite network has signal coverage at a specified location and/or specified time; the duration of signal coverage; and the duration of no signal coverage.
  • the second network element may be UDM/HSS
  • UDM/HSS may receive the UE-related satellite coverage information request sent by AMF/MME
  • UDM/HSS may send the request message to the first network element through NEF/SCEF
  • the solution of the present disclosure enables the core network network element to obtain satellite coverage information from the network element function for managing satellite network operation information, broadens the way to obtain satellite coverage information related to UE, and thus enhances communication performance.
  • the method also includes an optional implementation mode, specifically, the second network element can subscribe to the satellite coverage information related to the UE from the first network element, and the subscription message can indicate at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographical location information, the specified time information, and the satellite access type information.
  • the first network element can determine the satellite coverage information related to the UE according to the subscription and send it to the second network element.
  • the principle of this embodiment is the same as that of the above embodiment, and will not be repeated here.
  • FIG4 shows a schematic flow chart of a method for acquiring satellite coverage information according to an embodiment of the present disclosure, which method can be executed by a first network element.
  • the first network element includes network elements such as an application function (AF), a satellite information management server, and a satellite operation management OAM for managing satellite network operation information.
  • AF application function
  • satellite information management server a satellite information management server
  • OAM satellite operation management
  • the method may include the following steps.
  • S401 Receive a request message sent by a second network element.
  • the second network element when the network where the second network element is located is a 5G core network, the second network element is an AMF or a UDM; when the network where the second network element is located is an EPC network (or called a 4G core network), the second network element is an MME or an HSS.
  • the request message is used to request satellite coverage information related to a user equipment UE, and the request message includes at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographic location information, the specified time information, and the satellite access type information.
  • the UE motion trajectory information can be represented by key positions on the motion trajectory, and the trajectory information can be obtained from the NWDAF.
  • the specified time information represents a specified time point or time period, and is used to request satellite coverage information at the specified time point/time period.
  • the satellite access type information is used to request coverage information of all satellite access networks under the satellite access type (e.g., LEO).
  • the above information can be used in combination, for example: if the request message contains the specified geographic location information, the specified time information and the satellite access type, it means that the second network element requests the first network element for the coverage information of all satellite access networks at the specified time point at the geographic location. For another example, if the request message contains the movement trajectory information of the UE and the satellite access type, it means that the second network element requests the first network element for the coverage information of the satellite access network specified by the satellite access type on the movement trajectory. For another example, if the request message contains the current location information of the UE, it means that the second network element requests the first network element to use the coverage information of the current satellite access at the current location.
  • S402 Determine satellite coverage information related to the UE according to the request message and satellite operation information of the satellite access network.
  • the first network element can determine the satellite coverage information related to the UE based on the information contained in the request message (i.e., the above) and in combination with the satellite operation information of the satellite access network, such as the coverage information of all available satellite access networks of the UE at position 1, the coverage information of the current satellite access network of the UE at time 1 and time 2 at position 1 and position 2, etc.
  • the request message if the request message does not carry the satellite access type, it means that the second network element requests the first network element for coverage information of the satellite network currently accessed by the UE.
  • S403 Send the satellite coverage information related to the UE to the second network element.
  • the UE-related satellite coverage information includes at least one of the following: whether the satellite network has signal coverage at a specified location and/or specified time; the duration of signal coverage; and the duration of no signal coverage.
  • the first network element returns the satellite coverage information related to the UE to the second network element.
  • the first network element can receive a request message sent by the second network element, wherein the request message is used to request satellite coverage information related to the user equipment UE, and the request message includes at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographical location information, the specified time information, and the satellite access type information, and according to the request message and the satellite operation information of the satellite access network, the satellite coverage information related to the UE is determined and fed back to the second network element.
  • the solution of the present disclosure enables the core network network element to obtain satellite coverage information from the network element function for managing satellite network operation information, thereby enhancing communication performance.
  • FIG5 shows a schematic flow chart of a method for acquiring satellite coverage information according to an embodiment of the present disclosure.
  • the method may be executed by a first network element. Based on the embodiment shown in FIG4 , as shown in FIG5 , the method may include the following steps.
  • S501 Receive a request message sent by the second network element through NEF or SCEF.
  • the AMF/MME may send a request message to the first network element through the NEF/SCEF.
  • the NEF/SCEF may receive a subscription from the AMF/MME
  • the first network element may receive a subscription from the NEF/SCEF.
  • the request message is used to request the first network element for satellite coverage information related to the UE, and the request message includes at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographic location information, the specified time information, and the satellite access type information.
  • S502 Determine satellite coverage information related to the UE according to the request message and satellite operation information of the satellite access network.
  • the first network element determines the satellite coverage information related to the UE according to the information included in the request message and in combination with the satellite operation information of the satellite access network. For example, the coverage information of all available satellite access networks of the UE at position 1, the coverage information of the current satellite access network of the UE at time 1 and time 2 at position 1 and position 2, etc. If the request message does not carry the satellite access type, it means that the coverage information of the satellite network currently accessed by the UE is requested.
  • S503 Send the satellite coverage information related to the UE to the second network element through the NEF or SCEF.
  • the first network element may feedback UE-related satellite coverage information to the NEF/SCEF, and the NEF/SCEF may feedback UE-related satellite coverage information to the AMF/MME.
  • the UE-related satellite coverage information includes at least one of the following: whether the satellite network has signal coverage at a specified location and/or at a specified time; the duration of signal coverage; and the duration of no signal coverage.
  • the first network element may receive a subscription request for satellite coverage information related to the UE from the second network element, where the subscription request can indicate at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographic location information, the specified time information, and the satellite access type information, and the first network element sends the satellite coverage information related to the UE determined by the first network element according to the subscription.
  • the subscription request can indicate at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographic location information, the specified time information, and the satellite access type information
  • the first network element sends the satellite coverage information related to the UE determined by the first network element according to the subscription.
  • the first network element can receive the request sent by the second network element through NEF/SCEF, and the first network element can determine the satellite coverage information related to the UE according to the relevant information contained in the request, and return it to the second network element through NEF/SCEF.
  • the solution of the present disclosure enables the core network element to obtain satellite coverage information from the network element function for managing satellite network operation information, broadens the way to obtain satellite coverage information related to the UE, thereby enhancing communication performance.
  • the above-mentioned satellite coverage information acquisition method disclosed in the present invention involves interaction between a first network element and a second network element, wherein: the second network element sends a request message to the first network element, wherein the request message is used to request satellite coverage information related to a user equipment UE, and the request message can indicate at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographical location information, the specified time information, and the satellite access type information, and the satellite coverage information related to the UE can indicate the situation in which the satellite signal covers the UE; the first network element determines the satellite coverage information related to the UE based on the request message and the satellite operation information of the satellite access network; the first network element sends the satellite coverage information related to the UE to the second network element.
  • FIG6 shows an interactive schematic diagram of a method for acquiring satellite coverage information according to an embodiment of the present disclosure.
  • the method can be executed by a communication system, which includes a first network element and a second network element.
  • This embodiment specifically describes a scheme for acquiring satellite coverage information when the second network element is an AMF or an MME.
  • AMF AMF
  • the first network element may be an AF, a satellite information management server, a satellite operation management center OAM, or other network element used to manage satellite network operation information.
  • This embodiment is described using AF as an example.
  • the method may include the following steps.
  • S601 UE initiates a request for UE-related satellite coverage information to AMF.
  • the UE-related satellite coverage request may be that the UE requests satellite coverage information from the AMF/MME by initiating initial registration, periodic registration, registration update, and PDU session operation.
  • the UE when the UE determines that it is about to leave the current satellite coverage according to the satellite coverage information broadcast by the gNB, the UE initiates a registration update request to the network.
  • the request message contains the UE current location information, specified time information, motion trajectory information, specified satellite access type, etc., which is used to request the network for satellite coverage information of the available satellite access network at the specified location and specified time (not limited to the satellite access network currently used by the UE).
  • the motion trajectory information can also be obtained by the AMF from the NWDAF after receiving the registration update request.
  • AMF sends a request message to AF through NEF.
  • the request message is used to request satellite coverage information related to the user equipment UE, and the request message includes at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographic location information, the specified time information, and the satellite access type information.
  • AMF requests AF for satellite coverage information related to the UE through NEF.
  • the request message also includes location information, time information and satellite access type information, which is used to request coverage information of the satellite access network at a specified location and time.
  • S603 The AF determines satellite coverage information related to the UE.
  • the AF receives the request information, and determines the satellite coverage information related to the UE in combination with the satellite operation information, including the coverage information of the available satellite access network at the specified location and time.
  • satellite network 1 has no signal coverage at time point 1 at location 1
  • satellite network 2 has signal coverage at time point 1 at location 1, and so on.
  • AF returns UE-related satellite coverage information to AMF through NEF.
  • AMF determines relevant parameters according to the satellite coverage information related to the UE.
  • the relevant parameters may be a NAS timer (e.g., a customized registration update timer) and a power saving mechanism (Power Saving Mode, PSM) parameter (e.g., an extended discontinuous reception (Extended Discontinuous Reception, eDRX) parameter).
  • PSM Power Saving Mode
  • eDRX Extended Discontinuous Reception
  • AMF returns a registration update acceptance message to the UE, and returns the relevant parameters and UE-related satellite coverage information to the UE for storage in the message.
  • the second network element may be AMF/MME, and AMF/MME may receive the satellite coverage information request sent by the UE, and in response to the satellite coverage information request, send the request message to the first network element through NEF/SCEF, or may determine that it is necessary to obtain the satellite coverage information related to the user equipment UE, and send the request message to the first network element, and AMF/MME receives the satellite coverage information related to the UE from the first network element through NEF or SCEF.
  • the solution of the present disclosure enables the core network network element to obtain satellite coverage information from the network element function for managing satellite network operation information, broadens the way to obtain satellite coverage information related to the UE, and thus enhances communication performance.
  • FIG7 shows an interactive schematic diagram of a method for acquiring satellite coverage information according to an embodiment of the present disclosure.
  • the method can be executed by a communication system, which includes a first network element and a second network element.
  • This embodiment specifically describes a scheme for acquiring satellite coverage information when the second network element is a UDM or HSS.
  • UDM UDM
  • the first network element can be a network element for managing satellite network operation information, such as an AF, a satellite information management server, a satellite operation management center OAM, etc.
  • This embodiment is described using AF as an example.
  • the method can include the following steps.
  • the network device initiates a connection release request to AMF.
  • the network device may be a base station. This embodiment is described using gNB as an example.
  • the base station detects that the UE is about to lose the current satellite signal coverage, initiates an N2 connection release request to the AMF, and states in the request that the N2 connection release is caused by the loss of satellite signal coverage.
  • AMF requests UDM for UE-related satellite coverage information.
  • AMF decides to use the power saving mode for the UE during the period without signal coverage, and AMF requests the UDM for satellite coverage information related to the UE.
  • the request message includes at least one of the information such as the current location information of the UE, the specified time information, the motion trajectory information, and the specified satellite access type, which is used to request the network for satellite coverage information of the available satellite access network at the specified location and time, and is not limited to the satellite access network currently used by the UE.
  • the motion trajectory information can also be obtained by the AMF from the NWDAF after receiving the registration update request.
  • UDM can determine whether there is UE-related satellite coverage information based on the request message. If there is no satellite coverage information, UDM needs to subscribe to UE-related satellite coverage information from AF. UDM initiates a satellite coverage information subscription request to AF through NEF. The request message includes the corresponding location, time, satellite access type and other information in step S703.
  • the AF determines satellite coverage information related to the UE.
  • the AF receives the request information, and determines the satellite coverage information related to the UE in combination with the satellite operation information, including the coverage information of the available satellite access network at the specified location and time.
  • satellite network 1 has no signal coverage at time point 1 at location 1
  • satellite network 2 has signal coverage at time point 1 at location 1, and so on.
  • the AF returns the satellite coverage information related to the UE to the UDM through the NEF.
  • UDM returns UE-related satellite coverage information to AMF.
  • AMF determines relevant parameters according to the satellite coverage information related to the UE.
  • the relevant parameters may be a NAS timer (e.g., a customized registration update timer) and a PSM parameter (e.g., an eDRX parameter).
  • NAS timer e.g., a customized registration update timer
  • PSM parameter e.g., an eDRX parameter
  • AMF returns the relevant parameters and UE-related satellite coverage information to the UE for storage through the UCU program.
  • AMF initiates the N2 connection AN connection release process.
  • the second network element may be UDM/HSS
  • UDM/HSS may receive the UE-related satellite coverage information request sent by AMF/MME
  • UDM/HSS may send the request message to the first network element through NEF/SCEF
  • the solution of the present disclosure enables the core network network element to obtain satellite coverage information from the network element function for managing satellite network operation information, broadens the way to obtain satellite coverage information related to UE, and thus enhances communication performance.
  • the methods provided by the embodiments of the present application are introduced from the perspectives of the first network element and the second network element, respectively.
  • the first network element and the second network element may include a hardware structure and a software module, and the above functions may be implemented in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • One of the above functions may be executed in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • the present disclosure also provides a satellite coverage information acquisition device. Since the satellite coverage information acquisition device provided in the embodiment of the present disclosure corresponds to the satellite coverage information acquisition method provided in the above-mentioned embodiments, the implementation method of the satellite coverage information acquisition method is also applicable to the satellite coverage information acquisition device provided in this embodiment, and will not be described in detail in this embodiment.
  • FIG8 is a schematic diagram of the structure of a satellite coverage information acquisition device 800 provided in an embodiment of the present disclosure, where the satellite coverage information acquisition device is applied to a second network element.
  • the device 800 may include a transceiver module 810, which is used to: send a request message to the first network element, wherein the request message is used to request satellite coverage information related to the user equipment UE, and the request message includes at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographic location information, the specified time information, and the satellite access type information; and receive the satellite coverage information related to the UE sent by the first network element.
  • a transceiver module 810 which is used to: send a request message to the first network element, wherein the request message is used to request satellite coverage information related to the user equipment UE, and the request message includes at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographic location information, the specified time information, and the satellite access type information; and receive the satellite coverage information related to the UE sent by the first network element.
  • the second network element can send a request message to the first network element, wherein the request message is used to request satellite coverage information related to the user equipment UE, and the request message includes at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographical location information, the specified time information, and the satellite access type information, and receives the satellite coverage information related to the UE from the first network element.
  • the solution of the present disclosure enables the core network network element to obtain satellite coverage information from the network element function for managing satellite network operation information, thereby enhancing communication performance.
  • the transceiver module 810 is further used to: receive a satellite coverage information request sent by the UE; and send a request message to the first network element in response to the satellite coverage information request.
  • the device 800 also includes a determination module 820 for determining the need to obtain satellite coverage information related to the user equipment UE, and the transceiver module 810 is also used to: when it is determined that the satellite coverage information related to the user equipment UE needs to be obtained, send a request message to the first network element.
  • the transceiver module 810 is further used to: send a request message to the first network element through the network opening function NEF or the service capability opening function SCEF.
  • the transceiver module 810 is further used to: receive satellite coverage information related to the UE from the first network element through the network open function NEF or the service capability open function SCEF.
  • the second network element when the network where the second network element is located is a 5G core network, the second network element is an access and mobility management function AMF or a unified data management function UDM; when the network where the second network element is located is an EPC network, the second network element is a mobile management entity MME or a home subscriber service HSS.
  • the transceiver module 810 is also used to obtain at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographic location information, the specified time information, and the satellite access type information from the access and mobility management function AMF or the mobile management entity MME.
  • the transceiver module 810 is also used to: receive a UE-related satellite coverage information request sent by an access and mobility management function AMF or a mobile management entity MME; and return UE-related satellite coverage information to the AMF or MME.
  • the transceiver module 810 is also used to: subscribe to the satellite coverage information related to the UE to the first network element, the subscription message can indicate at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographic location information, the specified time information, and the satellite access type information; receive the satellite coverage information related to the UE determined by the first network element based on the subscription.
  • AMF/MME can receive the satellite coverage information request sent by UE, and in response to the satellite coverage information request, send a request message to the first network element through NEF/SCEF, or determine that it is necessary to obtain satellite coverage information related to user equipment UE, send a request message to the first network element, and AMF/MME receives UE-related satellite coverage information from the first network element through NEF or SCEF;
  • the second network element is UDM/HSS
  • UDM/HSS can receive UE-related satellite coverage information request sent by AMF/MME
  • UDM/HSS can send the request message to the first network element through NEF/SCEF, and receive the UE-related satellite coverage information from the first network element through NEF/SCEF. Therefore, the scheme disclosed in the present invention enables the core network network element to obtain satellite coverage information from the network element function used to manage satellite network operation information, broadens the way to obtain satellite coverage information related to UE, and thus enhances communication performance.
  • FIG10 is a schematic diagram of the structure of a satellite coverage information acquisition device 1000 provided in an embodiment of the present disclosure.
  • the satellite coverage information acquisition device 1000 is applied to a first network element.
  • the device 1000 includes: a transceiver module 1010, used to receive a request message sent by a second network element, wherein the request message is used to request satellite coverage information related to a user equipment UE, and the request message includes at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographical location information, the specified time information, and the satellite access type information; a determination module 1020, used to determine the satellite coverage information related to the UE based on the request message and the satellite operation information of the satellite access network; and the transceiver module 1010 is also used to send the satellite coverage information related to the UE to the second network element.
  • a transceiver module 1010 used to receive a request message sent by a second network element, wherein the request message is used to request satellite coverage information related to a user equipment UE, and the request message includes at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographical location information, the specified time information, and the satellite access type information
  • the first network element can receive a request message sent by the second network element, wherein the request message is used to request satellite coverage information related to the user equipment UE, and the request message includes at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographical location information, the specified time information, and the satellite access type information.
  • the request message and the satellite operation information of the satellite access network the satellite coverage information related to the UE is determined and fed back to the second network element.
  • the solution of the present disclosure enables the core network network element to obtain satellite coverage information from the network element function for managing satellite network operation information, thereby enhancing communication performance.
  • the transceiver module 1010 is further used to: receive a request message sent by the second network element through the network open function NEF or the service capability open function SCEF.
  • the transceiver module 1010 is further used to send UE-related satellite coverage information to the second network element via the network open function NEF or the service capability open function SCEF.
  • the transceiver module 1010 is also used to: receive a subscription request for UE-related satellite coverage information from a second network element, where the subscription request can indicate at least one of the UE's current location information, UE's motion trajectory information, specified geographic location information, specified time information, and satellite access type information; and send the UE-related satellite coverage information determined by the first network element based on the subscription.
  • the first network element can receive the request sent by the second network element through NEF/SCEF, and the first network element can determine the satellite coverage information related to the UE according to the relevant information contained in the request, and return it to the second network element through NEF/SCEF.
  • the solution of the present disclosure enables the core network element to obtain satellite coverage information from the network element function for managing satellite network operation information, broadens the way to obtain satellite coverage information related to the UE, thereby enhancing communication performance.
  • An embodiment of the present disclosure also provides a communication system, which includes a first network element and a second network element, wherein: the second network element is configured to execute the method described in the embodiments of Figures 1 to 3 of the present disclosure; the first network element is configured to execute the method described in the embodiments of Figures 4 to 5 of the present disclosure.
  • the communication system can execute a method for acquiring satellite coverage information, which includes: the second network element sends a request message to the first network element, wherein the request message is used to request satellite coverage information related to the user equipment UE, and the request message can indicate at least one of the current location information of the UE, the movement trajectory information of the UE, the specified geographical location information, the specified time information, and the satellite access type information, and the satellite coverage information related to the UE can indicate the situation in which the satellite signal covers the UE; the first network element determines the satellite coverage information related to the UE based on the request message and the satellite operation information of the satellite access network; the first network element sends the satellite coverage information related to the UE to the second network element.
  • the system includes the apparatus shown in the aforementioned FIGS. 8-10 .
  • FIG 11 is a schematic diagram of the structure of a communication device 1100 provided in an embodiment of the present application.
  • the communication device 1100 can be a network device, or a user device, or a chip, a chip system, or a processor that supports the network device to implement the above method, or a chip, a chip system, or a processor that supports the user device to implement the above method.
  • the device can be used to implement the method described in the above method embodiment, and the details can be referred to the description in the above method embodiment.
  • the communication device 1100 may include one or more processors 1101.
  • the processor 1101 may be a general-purpose processor or a dedicated processor, etc. For example, it may be a baseband processor or a central processing unit.
  • the baseband processor may be used to process the communication protocol and communication data
  • the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a computer program, and process the data of the computer program.
  • the communication device 1100 may further include one or more memories 1102, on which a computer program 1104 may be stored, and the processor 1101 executes the computer program 1104 so that the communication device 1100 performs the method described in the above method embodiment.
  • data may also be stored in the memory 1102.
  • the communication device 1100 and the memory 1102 may be provided separately or integrated together.
  • the communication device 1100 may further include a transceiver 1105 and an antenna 1106.
  • the transceiver 1105 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., and is used to implement a transceiver function.
  • the transceiver 1105 may include a receiver and a transmitter, the receiver may be referred to as a receiver or a receiving circuit, etc., and is used to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., and is used to implement a transmitting function.
  • the communication device 1100 may further include one or more interface circuits 1107.
  • the interface circuit 1107 is used to receive code instructions and transmit them to the processor 1101.
  • the processor 1101 executes the code instructions to enable the communication device 1100 to execute the method described in the above method embodiment.
  • the processor 1101 may include a transceiver for implementing the receiving and sending functions.
  • the transceiver may be a transceiver circuit, an interface, or an interface circuit.
  • the transceiver circuit, interface, or interface circuit for implementing the receiving and sending functions may be separate or integrated.
  • the above-mentioned transceiver circuit, interface, or interface circuit may be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface, or interface circuit may be used for transmitting or delivering signals.
  • the processor 1101 may store a computer program 1103, which runs on the processor 1101 and enables the communication device 1100 to perform the method described in the above method embodiment.
  • the computer program 1103 may be fixed in the processor 1101, in which case the processor 1101 may be implemented by hardware.
  • the communication device 1100 may include a circuit, and the circuit may implement the functions of sending or receiving or communicating in the aforementioned method embodiment.
  • the processor and transceiver described in the present application may be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc.
  • the processor and transceiver may also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (nMetal-oxide-semiconductor, NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • N-type metal oxide semiconductor nMetal-oxide-semiconductor
  • PMOS bipolar junction transistor
  • BJT bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be a network device or a user device, but the scope of the communication device described in the present application is not limited thereto, and the structure of the communication device may not be limited by FIG. 11.
  • the communication device may be an independent device or may be part of a larger device.
  • the communication device may be:
  • the IC set may also include a storage component for storing data and computer programs;
  • ASIC such as modem
  • the communication device can be a chip or a chip system
  • the communication device can be a chip or a chip system
  • the chip shown in Figure 12 includes a processor 1201 and an interface 1202.
  • the number of processors 1201 can be one or more, and the number of interfaces 1202 can be multiple.
  • the chip further includes a memory 1203, and the memory 1203 is used to store necessary computer programs and data.
  • the present application also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.
  • the present application also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.
  • the computer program product includes one or more computer programs.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer program can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer program can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that contains one or more available media integrated. Available media can be magnetic media (e.g., floppy disks, hard disks, tapes), optical media (e.g., high-density digital video discs (DVD)), or semiconductor media (e.g., solid state disks (SSD)), etc.
  • At least one in the present application can also be described as one or more, and a plurality can be two, three, four or more, which is not limited in the present application.
  • the technical features in the technical feature are distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D”, etc., and there is no order of precedence or size between the technical features described by the "first”, “second”, “third”, “A”, “B”, “C” and “D”.
  • machine-readable medium and “computer-readable medium” refer to any computer program product, apparatus, and/or device (e.g., disk, optical disk, memory, programmable logic device (PLD)) for providing machine instructions and/or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal.
  • machine-readable signal refers to any signal for providing machine instructions and/or data to a programmable processor.
  • the systems and techniques described herein may be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components.
  • the components of the system may be interconnected by any form or medium of digital data communication (e.g., a communications network). Examples of communications networks include: a local area network (LAN), a wide area network (WAN), and the Internet.
  • a computer system may include clients and servers.
  • Clients and servers are generally remote from each other and usually interact through a communication network.
  • the relationship of client and server is generated by computer programs running on respective computers and having a client-server relationship to each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本公开提出了一种卫星覆盖信息获取方法及装置，涉及通信领域。该方法通过第二网元向第一网元发送请求消息，其中，请求消息用于请求用户设备UE相关的卫星覆盖信息，请求消息能够指示UE的当前位置信息、UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项，并从第一网元接收UE相关的卫星覆盖信息。本方法使得核心网网元能够从用于管理卫星网络运行信息的网元功能获取卫星覆盖信息，从而增强通信性能。

Description

卫星覆盖信息获取方法及装置 技术领域
本公开涉及移动通信技术领域，特别涉及一种卫星覆盖信息获取方法及装置。
背景技术
5G核心网络支持用户终端通过卫星接入网络。如果使用卫星接入为用户提供网络服务，可能存在特定时间段无卫星信号覆盖的情况，此时网络需要获取终端的卫星覆盖情况，以便网络根据卫星覆盖信息决定UE在失去当前卫星网络信号期间的行为。目前相关技术中，无线接入网(Radio Access Network，RAN)只能获取当前接入位置邻近的4个卫星的星历信息，因此所述星历信息可能不足以用于确定UE在当前位置或者与运动轨迹相关的卫星信号覆盖情况，网络如何获取更全面的卫星覆盖信息尚不明确。
发明内容
本公开提出了一种卫星覆盖信息获取方法及装置，使得核心网网元能够从用于管理卫星网络运行信息的网元功能获取卫星覆盖信息，从而增强通信性能。
本公开的第一方面实施例提供了一种卫星覆盖信息获取方法，由第二网元执行，该方法包括：向第一网元发送请求消息，其中，请求消息用于请求用户设备UE相关的卫星覆盖信息，请求消息能够指示UE的当前位置信息、UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项，UE相关的卫星覆盖信息能够指示卫星信号覆盖UE的情况；接收第一网元发送的UE相关的卫星覆盖信息。
在一些实施例中，向第一网元发送请求消息包括：接收UE发送的卫星覆盖信息请求；响应于卫星覆盖信息请求，向第一网元发送请求消息。
在一些实施例中，向第一网元发送请求消息包括：确定需要获取用户设备UE相关的卫星覆盖信息，向第一网元发送请求消息。
在一些实施例中，第二网元向第一网元发送请求消息包括：通过网络开放功能NEF或业务能力开放功能SCEF，向第一网元发送请求消息。
在一些实施例中，第二网元接收第一网元发送的UE相关的卫星覆盖信息包括：通过网络开放功能NEF或业务能力开放功能SCEF，从第一网元接收UE相关的卫星覆盖信息。
在一些实施例中，当第二网元所在网络为5G核心网络时，第二网元是接入和移动性管理功能AMF或者统一数据管理功能UDM；当第二网元所在网络为EPC网络时，第二网元是移动管理实体MME或者归属签约用户服务HSS。
在一些实施例中，第二网元为统一数据管理功能UDM或归属签约用户服务器HSS时，方法还包括：从接入和移动性管理功能AMF或者移动管理实体MME获取UE的当前位置信息、UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项。
在一些实施例中，第二网元为统一数据管理功能UDM或归属签约用户服务器HSS时，方法还包括：接收接入和移动性管理功能AMF或移动管理实体MME发送的UE相关的卫星覆盖信息请求；向AMF或MME返回UE相关的卫星覆盖信息。
在一些实施例中，接收第一网元发送的UE相关的卫星覆盖信息还包括：向第一网元订阅UE相关的卫星覆盖信息，订阅消息能够指示UE的当前位置信息、UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项；接收第一网元根据订阅确定的UE相关的卫星覆盖信息。
在一些实施例中，UE相关的卫星覆盖信息包括以下至少一项：卫星网络在指定位置和/或指定时间有无信号覆盖；有信号覆盖时长；无信号覆盖时长。
本公开的第二方面实施例提供了一种卫星覆盖信息获取方法，该方法包括：接收第二网元发送的请求消息，其中，请求消息用于请求用户设备UE相关的卫星覆盖信息，请求消息包括UE的当前位置信息、UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项，UE相关的卫星覆盖信息能够指示卫星信号覆盖UE的情况；根据请求消息以及卫星接入网络的卫星运行信息，确定UE相关的卫星覆盖信息；向第二网元发送UE相关的卫星覆盖信息。
在一些实施例中，接收第二网元发送的请求消息包括：通过网络开放功能NEF或业务能力开放功能SCEF，接收第二网元发送的请求消息。
在一些实施例中，向第二网元发送UE相关的卫星覆盖信息包括：通过网络开放功能NEF或业务能力开放功能SCEF，向第二网元发送UE相关的卫星覆盖信息。
在一些实施例中，向第二网元发送UE相关的卫星覆盖信息还包括：接收第二网元的UE相关的卫星覆盖信息的订阅请求，订阅请求能够指示UE的当前位置信息、UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项；发送第一网元根据订阅确定的UE相关的卫星覆盖信息。
本公开的第三方面实施例提供了一种卫星覆盖信息获取装置，该装置包括收发模块，收发模块用于：向第一网元发送请求消息，其中，请求消息用于请求用户设备UE相关的卫星覆盖信息，请求消息包括UE的当前位置信息、UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项，UE相关的卫星覆盖信息能够指示卫星信号覆盖UE的情况；接收第一网元发送的UE相关的卫星覆盖信息。
本公开的第四方面实施例提供了一种卫星覆盖信息获取装置，该装置包括：收发模块，用于接收第二网元发送的请求消息，其中，请求消息用于请求用户设备UE相关的卫星覆盖信息，请求消息包括UE的当前位置信息、UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项，UE相关的卫星覆盖信息能够指示卫星信号覆盖UE的情况；确定模块，用于根据请求消息以及卫星接入网络的卫星运行信息，确定UE相关的卫星覆盖信息；收发模块还用于向第二网元发送UE相关的卫星覆盖信息。
本公开的第五方面实施例提供了一种通信系统，该通信系统包括第一网元和第二网元，其中：第二网元被配置为执行本公开第一方面实施例所描述的方法；第一网元被配置为执行本公开第二方面实施例所描述方法。
本公开的第六方面实施例提供了一种通信设备，包括：收发器；存储器；处理器，分别与收发器及存储器连接，配置为通过执行存储器上的计算机可执行指令，控制收发器的无线信号收发，并能够实现本公开第一方面实施例或第二方面实施例所描述的方法。
本公开的第七方面实施例提出了一种计算机存储介质，其中，计算机存储介质存储有计算机可执行指令；计算机可执行指令被处理器执行后，能够实现本公开第一方面实施例或第二方面实施例所描述的方法。
本公开实施例提供了一种卫星覆盖信息获取方法及装置，第二网元可以向第一网元发送请求消息，其中，请求消息用于请求用户设备UE相关的卫星覆盖信息，请求消息包括UE的当前位置信息、UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项，并从第一网元接收UE相关的卫星覆盖信息。本公开的方案使得核心网网元能够从用于管理卫星网络运行信息的网元功能获取卫星覆盖信息，从而增强通信性能。
本公开附加的方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本公开的实践了解到。
附图说明
本公开上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显和容易理解，其中：
图1为根据本公开实施例的一种卫星覆盖信息获取方法的流程示意图；
图2为根据本公开实施例的一种卫星覆盖信息获取方法的流程示意图；
图3为根据本公开实施例的一种卫星覆盖信息获取方法的流程示意图；
图4为根据本公开实施例的一种卫星覆盖信息获取方法的流程示意图；
图5为根据本公开实施例的一种卫星覆盖信息获取方法的流程示意图；
图6为根据本公开实施例的一种卫星覆盖信息获取方法的交互示意图；
图7为根据本公开实施例的一种卫星覆盖信息获取方法的交互示意图；
图8为根据本公开实施例的一种卫星覆盖信息获取装置的框图；
图9为根据本公开实施例的一种卫星覆盖信息获取装置的框图；
图10为根据本公开实施例的一种卫星覆盖信息获取装置的框图；
图11为本公开实施例提供的一种通信装置的结构示意图；
图12为本公开实施例提供的一种芯片的结构示意图。
具体实施方式
下面详细描述本公开的实施例，实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本公开，而不能理解为对本公开的限制。
5G核心网络支持用户终端通过卫星接入网络。如果使用卫星接入为用户提供网络服务，卫星接入可能受卫星波束覆盖范围以及星链中的卫星数量不足等影响，向地面提供的信号覆盖可能是非连续的，即用户在某一区域通过卫星接入网络时，存在特定时间段无卫星信号覆盖的情况。例如用户设备(User Equipment，UE)获得20分钟所述卫星接入信号覆盖后间隔10小时才能再次获得20分钟信号覆盖。
UE在当前卫星接入覆盖丢失期间，为了省电，可以进入省电模式，或者UE也可以选择其他可用的卫星接入，因此在UE即将失去当前卫星网络信号时，网络需要获取UE的卫星覆盖情况，以便网络根据所述卫星覆盖信息决定UE在失去当前卫星网络信号期间的行为，例如决策省电参数，让所述UE在失去当前卫星信号期间进入省电模式，或者指导UE在失去当前卫星网络信号时，使用其他可用的卫星接入网络。
相关技术中，RAN只能获取当前接入位置邻近的4个卫星的星历信息，因此所述星历信息可能不足以用于确定UE相关的卫星覆盖信息，例如需要根据UE的运动轨迹决策UE相关的卫星覆盖信息时，UE未来的指定位置不被当前广播的星历信息覆盖。因此网络如何获取更全面的卫星覆盖信息是需要解决的问题。
为此，本公开提出了一种卫星覆盖信息获取方法及装置，使得核心网网元能够从用于管理卫星网络运行信息的网元功能获取卫星覆盖信息，从而增强通信性能。
下面结合附图对本申请所提供的卫星覆盖信息获取方法及装置进行详细地介绍。
图1示出了根据本公开实施例的一种卫星覆盖信息获取方法的流程示意图。该方法可由第二网元执行。具体地，第二网元可以是接入和移动性管理功能(Access and Mobility Management Function，AMF)、移动管理实体(Mobility Management Entity，MME)、统一数据管理功能(Unified Data Management，UDM)、或归属签约用户服务器(Home Subscriber Server，HSS)，当所述第二网元所在网络为5G核心网络时，所述第二网元是AMF或者UDM；当所述第二网元所在网络为EPC网络(或称为4G核心网络)时，所述第二网元是MME或者HSS。本公开将在下述实施例中具体描述第二网元为不同功能情况下的方案。
如图1所示，该方法可以包括以下步骤。
S101，向第一网元发送请求消息。
在本公开的实施例中，第一网元包括应用功能(Application Function，AF)、卫星信息管理服务器、卫星运行管理中心操作维护管理(Operation Administration and Maintenance，OAM)等用于管理卫星网络运行信息的网元。
所述请求消息用于请求用户设备UE相关的卫星覆盖信息，所述请求消息能够指示所述UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项。应当理解，本公开所述的请求消息可以是通过显式指示的方式发送，例如请求消息包括所述UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项；也可以是通过隐式指示方式发送，例如请求消息中包括能够确定或获取UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项的其他信息或参数。本公开下述实施例以显示指示的方式进行示例，但不代表限制本公开的范围。
具体地，UE运动轨迹信息可用运动轨迹上的关键位置表示，所述轨迹信息可以从网络数据分析功能(Network Data Analytics Functio，NWDAF)获取。指定时间信息表示指定的时间点或时段，用于请求在所述指定时间点/时段上的卫星覆盖信息。卫星接入类型(satellite RAT)信息用于请求卫星接入类型(例如LEO)下所有卫星接入网络的覆盖信息。
应当理解的是，上述信息可以组合使用，例如：请求消息中包含指定地理位置信息、指定时间信息和卫星接入类型，则表示第二网元向第一网元请求在所述地理位置的指定时间点上的所有卫星接入网络的覆盖信息。再例如，请求消息中包含UE的运动轨迹信息、卫星接入类型，则表示第二网元向第一网元请求在所述运动轨迹上卫星接入类型指定的卫星接入网络的覆盖信息。再例如，请求消息中包含UE当前位置信息，则表示第二网元向第一网元请求在当前位置使用当前卫星接入的覆盖信息。
S102，接收所述第一网元发送的所述UE相关的卫星覆盖信息。
在本公开的实施例中，第一网元可以根据请求消息包含的信息(即上述)并结合卫星接入网络的卫星运行信息，确定所述UE相关的卫星覆盖信息，换言之，UE相关的卫星覆盖信息能够指示卫星信号覆盖所述UE的情况，即UE是否被卫星信号覆盖、可用的卫星有哪些、在何种位置何种时间内能或不 能被卫星信号覆盖等等。例如UE在位置1的所有可用卫星接入网络的覆盖信息，UE在位置1、位置2上的时间1和时间2的当前卫星接入网络的覆盖信息等，对此本公开不予限制。
在本公开的实施例中，如果请求消息中没有携带卫星接入类型，则表示请求UE当前接入的卫星网络的覆盖信息。
在本公开的实施例中，UE相关的卫星覆盖信息包括以下至少一项：卫星网络在指定位置和/或指定时间有无信号覆盖；有信号覆盖时长；无信号覆盖时长。
第一网元将UE相关的卫星覆盖信息返回给第二网元。
综上，根据本公开的方案，第二网元可以向第一网元发送请求消息，其中，所述请求消息用于请求用户设备UE相关的卫星覆盖信息，所述请求消息包括所述UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项，并从第一网元接收所述UE相关的卫星覆盖信息。本公开的方案使得核心网网元能够从用于管理卫星网络运行信息的网元功能获取卫星覆盖信息，从而增强通信性能。
图2示出了根据本公开实施例的一种卫星覆盖信息获取方法的流程示意图。该方法可由第二网元执行，基于图1所示实施例，本实施例主要描述第二网元为AMF或MME的情况。如图2所示，该方法可以包括以下步骤。
S201，接收所述UE发送的卫星覆盖信息请求。
在本公开的实施例中，第二网元AMF/MME可以接收来自所述UE的卫星覆盖信息的请求，例如UE通过发起初始注册、定期注册、注册更新、PDU会话操作向AMF/MME请求卫星覆盖信息。
在本公开的实施例中，UE向第二网元发送的卫星覆盖信息请求用于向第二网元请求UE相关的卫星覆盖信息，该卫星覆盖信息请求中可以包括所述UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项。
S202，响应于所述卫星覆盖信息请求，通过网络开放功能(Network Exposure Function，NEF)或业务能力开放功能(Service Capability Exposure Function，SCEF)，向所述第一网元发送请求消息。
在本公开的实施例中，第二网元可以响应于该卫星覆盖信息请求，向第一网元发送请求消息。该请求消息用于向第一网元请求UE相关的卫星覆盖信息，所述请求消息包括所述UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项。
本公开所述的“第二网元通过NEF或SCEF向第一网元发送请求消息”可以理解为，第二网元向NEF或SCEF订阅(或言之，请求)UE相关的卫星覆盖信息，NEF或SCEF再向第一网元订阅或请求UE相关的卫星覆盖信息。
应当说明的是，上述步骤S201和S202为可选步骤，在本公开的实施例中，第二网元向第一网元发送请求消息可以通过上述S201S202触发，也可以通过下述方式触发：
在另一种可选方式中，第二网元可以确定需要获取所述用户设备UE相关的卫星覆盖信息，从而向所述第一网元发送所述请求消息。
例如，当AMF/MME需要获取所述UE相关的卫星覆盖信息时，例如AMF/MME收到连接释放操作，并获知所述释放是UE的卫星接入信号丢失触发的，则可以向第一网元发送所述请求消息，具体地，可以通过NEF/SCEF向第一网元发送所述请求消息。
S203，通过NEF或SCEF，从所述第一网元接收所述UE相关的卫星覆盖信息。
本公开所述的“通过NEF或SCEF从第一网元接收UE相关的卫星覆盖信息”可以理解为，第一网元向NEF或SCEF反馈UE相关的卫星覆盖信息，NEF或SCEF再向第二网元反馈UE相关的卫星覆盖信息。
在本公开的实施例中，所述UE相关的卫星覆盖信息包括以下至少一项：卫星网络在指定位置和/或指定时间有无信号覆盖；有信号覆盖时长；无信号覆盖时长。
综上，根据本公开的方案，第二网元可以是AMF/MME，AMF/MME可以接收所述UE发送的卫星覆盖信息请求，响应于所述卫星覆盖信息请求，通过NEF/SCEF向所述第一网元发送所述请求消息，或者可以确定需要获取所述用户设备UE相关的卫星覆盖信息，向所述第一网元发送所述请求消息，AMF/MME通过NEF或SCEF，从所述第一网元接收所述UE相关的卫星覆盖信息。本公开的方案使得核心网网元能够从用于管理卫星网络运行信息的网元功能获取卫星覆盖信息，扩宽了与UE相关的卫星覆盖信息的获取途径，从而增强通信性能。
图3示出了根据本公开实施例的一种卫星覆盖信息获取方法的流程示意图。该方法可由第二网元执行，基于图1所示实施例，本实施例主要描述第二网元为UDM或HSS的情况。如图2所示，该方法可以包括以下步骤。
S301，从AMF或MME获取所述UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项。
在本公开的实施例中，上述步骤S301为可选步骤。UDM/HSS可以从AMF/MME获取任意上述信息，上述信息提供给UDM/HSS后可供UDM/HSS使用，例如用于后续请求卫星覆盖信息，也可以用于其他用途，在本公开中不予限定。
S302，接收AMF或MME发送的所述UE相关的卫星覆盖信息请求。
在本公开的实施例中，UDM/HSS可从AMF/MME接收卫星覆盖信息请求，该卫星覆盖信息请求用于AMF/MME向UDM/HSS请求UE相关的卫星覆盖信息。可选地，作为S301的一种可选实施方式，该卫星覆盖信息请求中可以包括UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项。
S303，向第一网元发送请求消息。
在本实施例中，所述请求消息用于UDM/HSS向第一网元请求UE相关的卫星覆盖信息。该请求消息包括所述UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项。
可以理解的是，在本实施例中，UDM/HSS可以通过NEF/SCEF，向第一网元发送请求消息。换言之，UDM/HSS可以向NEF或SCEF订阅(或言之，请求)UE相关的卫星覆盖信息，NEF或SCEF再向第一网元订阅或请求UE相关的卫星覆盖信息。
S304，向AMF或MME返回UE相关的卫星覆盖信息。
可以理解的是，在本实施例中，UDM/HSS可以通过NEF/SCEF接收第一网元发送的UE相关的卫星覆盖信息。换言之，第一网元可以向NEF或SCEF反馈UE相关的卫星覆盖信息，NEF或SCEF再向UDM/HSS反馈UE相关的卫星覆盖信息。
具体地，UDM/HSS可以向所述第一网元订阅所述UE相关的卫星覆盖信息，所述订阅消息能够指示所述UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项。第一网元可以根据所述订阅确定UE相关的卫星覆盖信息，并发送给UDM/HSS。
在本公开的实施例中，所述UE相关的卫星覆盖信息包括以下至少一项：卫星网络在指定位置和/或指定时间有无信号覆盖；有信号覆盖时长；无信号覆盖时长。
综上，根据本公开的方案，第二网元可以是UDM/HSS，UDM/HSS可以接收AMF/MME发送的UE相关的卫星覆盖信息请求，UDM/HSS可以通过NEF/SCEF向所述第一网元发送所述请求消息，通过NEF/SCEF，从所述第一网元接收所述UE相关的卫星覆盖信息。本公开的方案使得核心网网元能够从用于管理卫星网络运行信息的网元功能获取卫星覆盖信息，扩宽了与UE相关的卫星覆盖信息的获取途径，从而增强通信性能。
针对上述图1至3所示的实施例，该方法还包括一种可选实施方式，具体地，第二网元可以向所述第一网元订阅所述UE相关的卫星覆盖信息，所述订阅消息能够指示所述UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项。第一网元可以根据所述订阅确定UE相关的卫星覆盖信息，并发送给第二网元。该实施例的原理与上述实施例的原理相同，在此不再赘述。
图4示出了根据本公开实施例的一种卫星覆盖信息获取方法的流程示意图，该方法可由第一网元执行。在本公开的实施例中，第一网元包括应用功能(Application Function，AF)、卫星信息管理服务器、卫星运行管理OAM等用于管理卫星网络运行信息的网元。
如图4所示，该方法可以包括以下步骤。
S401，接收第二网元发送的请求消息。
在本公开的实施例中，当所述第二网元所在网络为5G核心网络时，所述第二网元是AMF或者UDM；当所述第二网元所在网络为EPC网络(或称为4G核心网络)时，所述第二网元是MME或者HSS。
在本公开的实施例中，所述请求消息用于请求用户设备UE相关的卫星覆盖信息，所述请求消息包括所述UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项。
具体地，UE运动轨迹信息可用运动轨迹上的关键位置表示，所述轨迹信息可以从NWDAF获取。指定时间信息表示指定的时间点或时段，用于请求在所述指定时间点/时段上的卫星覆盖信息。卫星接入类型信息用于请求卫星接入类型(例如LEO)下所有卫星接入网络的覆盖信息。
应当理解的是，上述信息可以组合使用，例如：请求消息中包含指定地理位置信息、指定时间信息和卫星接入类型，则表示第二网元向第一网元请求在所述地理位置的指定时间点上的所有卫星接入网络的覆盖信息。再例如，请求消息中包含UE的运动轨迹信息、卫星接入类型，则表示第二网元向第一网元请求在所述运动轨迹上卫星接入类型指定的卫星接入网络的覆盖信息。再例如，请求消息中包含UE当前位置信息，则表示第二网元向第一网元请求在当前位置使用当前卫星接入的覆盖信息。
S402，根据所述请求消息以及卫星接入网络的卫星运行信息，确定所述UE相关的卫星覆盖信息。
在本公开的实施例中，第一网元可以根据请求消息包含的信息(即上述)并结合卫星接入网络的卫星运行信息，确定所述UE相关的卫星覆盖信息，例如UE在位置1的所有可用卫星接入网络的覆盖信息，UE在位置1、位置2上的时间1和时间2的当前卫星接入网络的覆盖信息等。
在本公开的实施例中，如果请求消息中没有携带卫星接入类型，则表示第二网元向第一网元请求UE当前接入的卫星网络的覆盖信息。
S403，向所述第二网元发送所述UE相关的卫星覆盖信息。
在本公开的实施例中，UE相关的卫星覆盖信息包括以下至少一项：卫星网络在指定位置和/或指定时间有无信号覆盖；有信号覆盖时长；无信号覆盖时长。
第一网元将UE相关的卫星覆盖信息返回给第二网元。
综上，根据本公开的方案，第一网元可以接收第二网元发送请求消息，其中，所述请求消息用于请求用户设备UE相关的卫星覆盖信息，所述请求消息包括所述UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项，根据所述请求消息以及卫星接入网络的卫星运行信息，确定所述UE相关的卫星覆盖信息并反馈给第二网元。本公开的方案使得核心网网元能够从用于管理卫星网络运行信息的网元功能获取卫星覆盖信息，从而增强通信性能。
图5示出了根据本公开实施例的一种卫星覆盖信息获取方法的流程示意图。该方法可由第一网元执行。基于图4所示的实施例，如图5所示，该方法可以包括以下步骤。
S501，通过NEF或SCEF，接收所述第二网元发送的请求消息。
在本公开的实施例中，AMF/MME可以通过NEF/SCEF向第一网元发送请求消息。换言之，NEF/SCEF可以接收AMF/MME的订阅，第一网元可以接收NEF/SCEF的订阅。该请求消息用于向第一网元请求UE相关的卫星覆盖信息，所述请求消息包括所述UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项。
S502，根据所述请求消息以及卫星接入网络的卫星运行信息，确定所述UE相关的卫星覆盖信息。
在本公开的实施例中，第一网元根据请求消息包含的信息并结合卫星接入网络的卫星运行信息，确定所述UE相关的卫星覆盖信息。例如UE在位置1的所有可用卫星接入网络的覆盖信息，UE在位置1、位置2上的时间1和时间2的当前卫星接入网络的覆盖信息等。如果请求消息中没有携带卫星接入类型，则表示请求UE当前接入的卫星网络的覆盖信息。
S503，通过NEF或SCEF，向所述第二网元发送所述UE相关的卫星覆盖信息。
在本公开的实施例中，第一网元可以向NEF/SCEF反馈UE相关的卫星覆盖信息，NEF/SCEF向AMF/MME反馈UE相关的卫星覆盖信息。在本公开的实施例中，所述UE相关的卫星覆盖信息包括以下至少一项：卫星网络在指定位置和/或指定时间有无信号覆盖；有信号覆盖时长；无信号覆盖时长。
在一种可选实施方式中，第一网元可以接收所述第二网元的UE相关的卫星覆盖信息的订阅请求，所述订阅请求能够指示所述UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项，第一网元发送所述第一网元根据所述订阅确定的所述UE相关的卫星覆盖信息。该实施例的原理与上述实施例的原理相同，在此不再赘述。
综上，根据本公开的方案，第一网元可以通过NEF/SCEF接收第二网元发送的请求，第一网元可以根据请求中包含的相关信息确定UE相关的卫星覆盖信息，并通过NEF/SCEF返回给第二网元。本公开的方案使得核心网网元能够从用于管理卫星网络运行信息的网元功能获取卫星覆盖信息，扩宽了与UE相关的卫星覆盖信息的获取途径，从而增强通信性能。
本公开上述卫星覆盖信息获取方法涉及第一网元和第二网元之间的交互，其中：第二网元向第一网元发送请求消息，其中，所述请求消息用于请求用户设备UE相关的卫星覆盖信息，所述请求消息能够指示所述UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接 入类型信息中的至少一项，所述UE相关的卫星覆盖信息能够指示卫星信号覆盖所述UE的情况；第一网元根据所述请求消息以及卫星接入网络的卫星运行信息，确定所述UE相关的卫星覆盖信息；第一网元向所述第二网元发送所述UE相关的卫星覆盖信息。
具体地，图6示出了根据本公开实施例的一种卫星覆盖信息获取方法的交互示意图。该方法可以由一种通信系统执行，该通信系统包括第一网元和第二网元。该实施例具体描述了第二网元为AMF或MME时获取卫星覆盖信息的方案，本实施例以AMF为例进行说明。第一网元可以是AF、卫星信息管理服务器、卫星运行管理中心OAM等用于管理卫星网络运行信息的网元，本实施例以AF为例进行说明。如图6所示，该方法可以包括以下步骤。
S601，UE向AMF发起UE相关的卫星覆盖信息请求。
在本实施例中，UE相关的卫星覆盖请求可以是UE通过发起初始注册、定期注册、注册更新、PDU会话操作向AMF/MME请求卫星覆盖信息。
具体地，以UE向网络发起注册更新请求为例，当UE根据gNB广播的卫星覆盖信息判断即将离开当前卫星覆盖时，UE向网络发起注册更新请求，所述请求消息中包含UE当前位置信息，指定时间信息，运动轨迹信息，指定卫星接入类型等，用于向网络请求在指定位置，指定时间的可用卫星接入网络的卫星覆盖信息(不局限于UE当前使用的卫星接入网络)。所述运动轨迹信息也可以由AMF接收注册更新请求后，向NWDAF获取。
S602，AMF通过NEF，向AF发送请求消息。
在本实施例中，所述请求消息用于请求用户设备UE相关的卫星覆盖信息，所述请求消息包括所述UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项。
具体地，AMF接收所述请求后，通过NEF向AF请求跟UE相关的卫星覆盖信息，所述请求消息也包含位置信息，时间信息和卫星接入类型信息，用于请求卫星接入网络在指定位置、指定时间的覆盖信息。
S603，AF确定UE相关的卫星覆盖信息。
具体地，AF接收所述请求信息，并结合卫星运行信息，确定UE相关的卫星覆盖信息，包括在指定位置，指定时间的可用卫星接入网络的覆盖信息。
例如，卫星网络1在位置1的时间点1无信号覆盖、卫星网络2在位置1的时间点1有信号覆盖等等。
S604，AF通过NEF向AMF返回UE相关的卫星覆盖信息。
S605，AMF根据所述UE相关的卫星覆盖信息确定相关参数。
在本公开的实施例中，相关参数可以是NAS timer(例如定制注册更新定时器)和省电机制(Power Saving Mode，PSM)参数(例如扩展不连续接收(Extended Discontinuous Reception，eDRX)参数)。
S606，AMF向UE返回注册更新接受消息，并在所述消息中将相关参数以及UE相关的卫星覆盖信息返回给UE保存。
综上，根据本公开的方案，第二网元可以是AMF/MME，AMF/MME可以接收所述UE发送的卫星覆盖信息请求，响应于所述卫星覆盖信息请求，通过NEF/SCEF向所述第一网元发送所述请求消息，或者可以确定需要获取所述用户设备UE相关的卫星覆盖信息，向所述第一网元发送所述请求消息，AMF/MME通过NEF或SCEF，从所述第一网元接收所述UE相关的卫星覆盖信息。本公开的方案使得核心网网元能够从用于管理卫星网络运行信息的网元功能获取卫星覆盖信息，扩宽了与UE相关的卫星覆盖信息的获取途径，从而增强通信性能。
图7示出了根据本公开实施例的一种卫星覆盖信息获取方法的交互示意图。该方法可以由一种通信系统执行，该通信系统包括第一网元和第二网元。该实施例具体描述了第二网元为UDM或HSS时获取卫星覆盖信息的方案，本实施例以UDM为例进行说明。第一网元可以是AF、卫星信息管理服务器、卫星运行管理中心OAM等用于管理卫星网络运行信息的网元，本实施例以AF为例进行说明。如图7所示，该方法可以包括以下步骤。
S701，网络设备向AMF发起连接释放请求。
在本公开的实施例中，网络设备可以是基站，本实施例以gNB为例进行说明。
具体地，基站检测到UE即将失去当前卫星信号覆盖，向AMF发起N2连接释放请求，并在请求中说明是卫星信号覆盖丢失导致的N2连接释放。
S702，AMF向UDM请求UE相关的卫星覆盖信息。
具体地，AMF根据所述请求，决定为所述UE在无信号覆盖期间使用省电模式，AMF向UDM请求UE相关的卫星覆盖信息，所述请求消息包含UE当前位置信息、指定时间信息、运动轨迹信息、指定卫星接入类型等信息中的至少一项，用于向网络请求在指定位置、指定时间的可用卫星接入网络的卫星覆盖信息，并且不局限于UE当前使用的卫星接入网络。所述运动轨迹信息也可以由AMF接收注册更新请求后，向NWDAF获取。
S703，UDM判断没有卫星覆盖信息时，UDM通过NEF向AF订阅UE相关的卫星覆盖信息。
具体地，UDM根据所述请求消息可以判断有无UE相关的卫星覆盖信息，如果没有卫星覆盖信息，则UDM需要向AF订阅UE相关的卫星覆盖信息，UDM通过NEF向AF发起卫星覆盖信息订阅请求，所述请求消息中包含步骤S703中对应的位置、时间和卫星接入类型等信息。
S704，AF确定UE相关的卫星覆盖信息。
具体地，AF接收所述请求信息，并结合卫星运行信息，确定UE相关的卫星覆盖信息，包括在指定位置、指定时间的可用卫星接入网络的覆盖信息。
例如，卫星网络1在位置1的时间点1无信号覆盖、卫星网络2在位置1的时间点1有信号覆盖等等。
S705，AF通过NEF向UDM返回UE相关的卫星覆盖信息。
S706，UDM向AMF返回UE相关的卫星覆盖信息。
S707，AMF根据所述UE相关的卫星覆盖信息确定相关参数。
在本公开的实施例中，相关参数可以是NAS timer(例如定制注册更新定时器)和PSM参数(例如eDRX参数)。
S708，AMF通过UCU程序将相关参数及UE相关的卫星覆盖信息返回给UE保存。
S709，AMF发起N2连接AN连接释放过程。
综上，根据本公开的方案，第二网元可以是UDM/HSS，UDM/HSS可以接收AMF/MME发送的UE相关的卫星覆盖信息请求，UDM/HSS可以通过NEF/SCEF向所述第一网元发送所述请求消息，通过NEF/SCEF，从所述第一网元接收所述UE相关的卫星覆盖信息。本公开的方案使得核心网网元能够从用于管理卫星网络运行信息的网元功能获取卫星覆盖信息，扩宽了与UE相关的卫星覆盖信息的获取途径，从而增强通信性能。
上述本申请提供的实施例中，分别从第一网元和第二网元的角度对本申请实施例提供的方法进行了介绍。为了实现上述本申请实施例提供的方法中的各功能，第一网元和第二网元可以包括硬件结构、软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能可以以硬件结构、软件模块、或者硬件结构加软件模块的方式来执行。
与上述几种实施例提供的卫星覆盖信息获取方法相对应，本公开还提供一种卫星覆盖信息获取装置，由于本公开实施例提供的卫星覆盖信息获取装置与上述几种实施例提供的卫星覆盖信息获取方法相对应，因此卫星覆盖信息获取方法的实施方式也适用于本实施例提供的卫星覆盖信息获取装置，在本实施例中不再详细描述。
图8为本公开实施例提供的一种卫星覆盖信息获取装置800的结构示意图，该卫星覆盖信息获取装置应用于第二网元。
如图8所示，该装置800可以包括收发模块810，收发模块810用于：向第一网元发送请求消息，其中，请求消息用于请求用户设备UE相关的卫星覆盖信息，请求消息包括UE的当前位置信息、UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项；以及接收第一网元发送的UE相关的卫星覆盖信息。
根据本公开提供的卫星覆盖信息获取装置，第二网元可以向第一网元发送请求消息，其中，请求消息用于请求用户设备UE相关的卫星覆盖信息，请求消息包括UE的当前位置信息、UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项，并从第一网元接收UE相关的卫星覆盖信息。本公开的方案使得核心网网元能够从用于管理卫星网络运行信息的网元功能获取卫星覆盖信息，从而增强通信性能。
在一些实施例中，收发模块810还用于：接收UE发送的卫星覆盖信息请求；响应于卫星覆盖信息请求，向第一网元发送请求消息。
在一些实施例中，如图9所示，该装置800还包括确定模块820，用于确定需要获取用户设备UE相关的卫星覆盖信息，收发模块810还用于：当确定需要获取用户设备UE相关的卫星覆盖信息时，向第一网元发送请求消息。
在一些实施例中，收发模块810还用于：通过网络开放功能NEF或业务能力开放功能SCEF，向第一网元发送请求消息。
在一些实施例中，收发模块810还用于：通过网络开放功能NEF或业务能力开放功能SCEF，从第一网元接收UE相关的卫星覆盖信息。
在一些实施例中，当第二网元所在网络为5G核心网络时，第二网元是接入和移动性管理功能AMF或者统一数据管理功能UDM；当第二网元所在网络为EPC网络时，第二网元是移动管理实体MME或者归属签约用户服务HSS。
在一些实施例中，第二网元为统一数据管理功能UDM或归属签约用户服务器HSS时，收发模块810还用于：从接入和移动性管理功能AMF或者移动管理实体MME获取UE的当前位置信息、UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项。
在一些实施例中，第二网元为统一数据管理功能UDM或归属签约用户服务器HSS时，收发模块810还用于：接收接入和移动性管理功能AMF或移动管理实体MME发送的UE相关的卫星覆盖信息请求；向AMF或MME返回UE相关的卫星覆盖信息。
在一些实施例中，收发模块810还用于：向第一网元订阅UE相关的卫星覆盖信息，订阅消息能够指示UE的当前位置信息、UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项；接收第一网元根据订阅确定的UE相关的卫星覆盖信息。
综上，当第二网元是AMF/MME时，AMF/MME可以接收UE发送的卫星覆盖信息请求，响应于卫星覆盖信息请求，通过NEF/SCEF向第一网元发送请求消息，或者可以确定需要获取用户设备UE相关的卫星覆盖信息，向第一网元发送请求消息，AMF/MME通过NEF或SCEF，从第一网元接收UE相关的卫星覆盖信息；当第二网元是UDM/HSS时，UDM/HSS可以接收AMF/MME发送的UE相关的卫星覆盖信息请求，UDM/HSS可以通过NEF/SCEF向所述第一网元发送所述请求消息，通过NEF/SCEF，从所述第一网元接收所述UE相关的卫星覆盖信息。因此，本公开的方案使得核心网网元能够从用于管理卫星网络运行信息的网元功能获取卫星覆盖信息，扩宽了与UE相关的卫星覆盖信息的获取途径，从而增强通信性能。
图10为本公开实施例提供的一种卫星覆盖信息获取装置1000的结构示意图，该卫星覆盖信息获取装置1000应用于第一网元。
如图10所示，装置1000包括：收发模块1010，用于接收第二网元发送的请求消息，其中，请求消息用于请求用户设备UE相关的卫星覆盖信息，请求消息包括UE的当前位置信息、UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项；确定模块1020，用于根据请求消息以及卫星接入网络的卫星运行信息，确定UE相关的卫星覆盖信息；以及收发模块1010还用于向第二网元发送UE相关的卫星覆盖信息。
根据本公开提供的卫星覆盖信息获取装置，第一网元可以接收第二网元发送请求消息，其中，请求消息用于请求用户设备UE相关的卫星覆盖信息，请求消息包括UE的当前位置信息、UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项，根据请求消息以及卫星接入网络的卫星运行信息，确定UE相关的卫星覆盖信息并反馈给第二网元。本公开的方案使得核心网网元能够从用于管理卫星网络运行信息的网元功能获取卫星覆盖信息，从而增强通信性能。
在一些实施例中，收发模块1010还用于：通过网络开放功能NEF或业务能力开放功能SCEF，接收第二网元发送的请求消息。
在一些实施例中，收发模块1010还用于：通过网络开放功能NEF或业务能力开放功能SCEF，向第二网元发送UE相关的卫星覆盖信息。
在一些实施例中，收发模块1010还用于：接收第二网元的UE相关的卫星覆盖信息的订阅请求，订阅请求能够指示UE的当前位置信息、UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项；发送第一网元根据订阅确定的UE相关的卫星覆盖信息。
根据本公开提供的卫星覆盖信息获取装置，第一网元可以通过NEF/SCEF接收第二网元发送的请求，第一网元可以根据请求中包含的相关信息确定UE相关的卫星覆盖信息，并通过NEF/SCEF返回给第二网元。本公开的方案使得核心网网元能够从用于管理卫星网络运行信息的网元功能获取卫星覆盖信息，扩宽了与UE相关的卫星覆盖信息的获取途径，从而增强通信性能。
本公开实施例还提供一种通信系统，该通信系统包括第一网元和第二网元，其中：第二网元被配置为执行如本公开图1至图3实施例所述的方法；第一网元被配置为执行如本公开图4至图5实施例所述的方法。
换言之，该通信系统可以执行一种卫星覆盖信息获取方法，该方法包括：第二网元向第一网元发送请求消息，其中，所述请求消息用于请求用户设备UE相关的卫星覆盖信息，所述请求消息能够指示所述UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项，所述UE相关的卫星覆盖信息能够指示卫星信号覆盖所述UE的情况；第一网元根据所述请求消息以及卫星接入网络的卫星运行信息，确定所述UE相关的卫星覆盖信息；第一网元向所述第二网元发送所述UE相关的卫星覆盖信息。
换言之，该系统包括前述图8-10所示的装置。
请参见图11，图11是本申请实施例提供的一种通信装置1100的结构示意图。通信装置1100可以是网络设备，也可以是用户设备，也可以是支持网络设备实现上述方法的芯片、芯片系统、或处理器等，还可以是支持用户设备实现上述方法的芯片、芯片系统、或处理器等。该装置可用于实现上述方法实施例中描述的方法，具体可以参见上述方法实施例中的说明。
通信装置1100可以包括一个或多个处理器1101。处理器1101可以是通用处理器或者专用处理器等。例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、基带芯片，终端设备、终端设备芯片，DU或CU等)进行控制，执行计算机程序，处理计算机程序的数据。
可选的，通信装置1100中还可以包括一个或多个存储器1102，其上可以存有计算机程序1104，处理器1101执行计算机程序1104，以使得通信装置1100执行上述方法实施例中描述的方法。可选的，存储器1102中还可以存储有数据。通信装置1100和存储器1102可以单独设置，也可以集成在一起。
可选的，通信装置1100还可以包括收发器1105、天线1106。收发器1105可以称为收发单元、收发机、或收发电路等，用于实现收发功能。收发器1105可以包括接收器和发送器，接收器可以称为接收机或接收电路等，用于实现接收功能；发送器可以称为发送机或发送电路等，用于实现发送功能。
可选的，通信装置1100中还可以包括一个或多个接口电路1107。接口电路1107用于接收代码指令并传输至处理器1101。处理器1101运行代码指令以使通信装置1100执行上述方法实施例中描述的方法。
在一种实现方式中，处理器1101中可以包括用于实现接收和发送功能的收发器。例如该收发器可以是收发电路，或者是接口，或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的，也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写，或者，上述收发电路、接口或接口电路可以用于信号的传输或传递。
在一种实现方式中，处理器1101可以存有计算机程序1103，计算机程序1103在处理器1101上运行，可使得通信装置1100执行上述方法实施例中描述的方法。计算机程序1103可能固化在处理器1101中，该种情况下，处理器1101可能由硬件实现。
在一种实现方式中，通信装置1100可以包括电路，电路可以实现前述方法实施例中发送或接收或者通信的功能。本申请中描述的处理器和收发器可实现在集成电路(integrated circuit，IC)、模拟IC、射频集成电路RFIC、混合信号IC、专用集成电路(application specific integrated circuit，ASIC)、印刷电路板(printed circuit board，PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造，例如互补金属氧化物半导体(complementary metal oxide semiconductor，CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor，NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor，PMOS)、双极结型晶体管(bipolar junction transistor，BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
以上实施例描述中的通信装置可以是网络设备或者用户设备，但本申请中描述的通信装置的范围并不限于此，而且通信装置的结构可以不受图11的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如通信装置可以是：
(1)独立的集成电路IC，或芯片，或，芯片系统或子系统；
(2)具有一个或多个IC的集合，可选的，该IC集合也可以包括用于存储数据，计算机程序的存储部件；
(3)ASIC，例如调制解调器(Modem)；
(4)可嵌入在其他设备内的模块；
(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等；
(6)其他等等。
对于通信装置可以是芯片或芯片系统的情况，可参见图12所示的芯片的结构示意图。图12所示的芯片包括处理器1201和接口1202。其中，处理器1201的数量可以是一个或多个，接口1202的数量可以是多个。
可选的，芯片还包括存储器1203，存储器1203用于存储必要的计算机程序和数据。
本领域技术人员还可以了解到本申请实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件，或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个系统的设计要求。本领域技术人员可以对于每种特定的应用，可以使用各种方法实现的功能，但这种实现不应被理解为超出本申请实施例保护的范围。
本申请还提供一种可读存储介质，其上存储有指令，该指令被计算机执行时实现上述任一方法实施例的功能。
本申请还提供一种计算机程序产品，该计算机程序产品被计算机执行时实现上述任一方法实施例的功能。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。计算机程序产品包括一个或多个计算机程序。在计算机上加载和执行计算机程序时，全部或部分地产生按照本申请实施例的流程或功能。计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。计算机程序可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，计算机程序可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
本领域普通技术人员可以理解：本申请中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本申请实施例的范围，也表示先后顺序。
本申请中的至少一个还可以描述为一个或多个，多个可以是两个、三个、四个或者更多个，本申请不做限制。在本申请实施例中，对于一种技术特征，通过“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”等区分该种技术特征中的技术特征，该“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”描述的技术特征间无先后顺序或者大小顺序。
如本文使用的，术语“机器可读介质”和“计算机可读介质”指的是用于将机器指令和/或数据提供给可编程处理器的任何计算机程序产品、设备、和/或装置(例如，磁盘、光盘、存储器、可编程逻辑装置(PLD))，包括，接收作为机器可读信号的机器指令的机器可读介质。术语“机器可读信号”指的是用于将机器指令和/或数据提供给可编程处理器的任何信号。
可以将此处描述的系统和技术实施在包括后台部件的计算系统(例如，作为数据服务器)、或者包括中间件部件的计算系统(例如，应用服务器)、或者包括前端部件的计算系统(例如，具有图形用户界面或者网络浏览器的用户计算机，用户可以通过该图形用户界面或者该网络浏览器来与此处描述的系统和技术的实施方式交互)、或者包括这种后台部件、中间件部件、或者前端部件的任何组合的计算系统中。可以通过任何形式或者介质的数字数据通信(例如，通信网络)来将系统的部件相互连接。通信网络的示例包括：局域网(LAN)、广域网(WAN)和互联网。
计算机系统可以包括客户端和服务器。客户端和服务器一般远离彼此并且通常通过通信网络进行交互。通过在相应的计算机上运行并且彼此具有客户端-服务器关系的计算机程序来产生客户端和服务器的关系。
应该理解，可以使用上面所示的各种形式的流程，重新排序、增加或删除步骤。例如，本公开中记载的各步骤可以并行地执行也可以顺序地执行也可以不同的次序执行，只要能够实现本公开公开的技术方案所期望的结果，本文在此不进行限制。
此外，应该理解，本申请的各种实施例可以单独实施，也可以在方案允许的情况下与其他实施例组合实施。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
以上，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (19)

  1. 一种卫星覆盖信息获取方法，其特征在于，所述方法由第二网元执行，所述方法包括：
    向第一网元发送请求消息，其中，所述请求消息用于请求用户设备UE相关的卫星覆盖信息，所述请求消息能够指示所述UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项，所述UE相关的卫星覆盖信息能够指示卫星信号覆盖所述UE的情况；
    接收所述第一网元发送的所述UE相关的卫星覆盖信息。
  2. 根据权利要求1所述的方法，其特征在于，所述向第一网元发送请求消息包括：
    接收所述UE发送的卫星覆盖信息请求；
    响应于所述卫星覆盖信息请求，向所述第一网元发送所述请求消息。
  3. 根据权利要求1所述的方法，其特征在于，所述向第一网元发送请求消息包括：
    确定需要获取所述用户设备UE相关的卫星覆盖信息，向所述第一网元发送所述请求消息。
  4. 根据权利要求1至3任一项所述的方法，其特征在于，所述第二网元向所述第一网元发送请求消息包括：
    通过网络开放功能NEF或业务能力开放功能SCEF，向所述第一网元发送所述请求消息。
  5. 根据权利要求1至3任一项所述的方法，其特征在于，所述第二网元接收所述第一网元发送的所述UE相关的卫星覆盖信息包括：
    通过网络开放功能NEF或业务能力开放功能SCEF，从所述第一网元接收所述UE相关的卫星覆盖信息。
  6. 根据权利要求1至4任一项所述的方法，其特征在于，包括：
    当所述第二网元所在网络为5G核心网络时，所述第二网元是接入和移动性管理功能AMF或者统一数据管理功能UDM；
    当所述第二网元所在网络为EPC网络时，所述第二网元是移动管理实体MME或者归属签约用户服务HSS。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，所述第二网元为统一数据管理功能UDM或归属签约用户服务器HSS时，所述方法还包括：
    从接入和移动性管理功能AMF或者移动管理实体MME获取所述UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项。
  8. 根据权利要求1至6中任一项所述的方法，其特征在于，所述第二网元为统一数据管理功能UDM或归属签约用户服务器HSS时，所述方法还包括：
    接收接入和移动性管理功能AMF或移动管理实体MME发送的所述UE相关的卫星覆盖信息请求；
    向所述AMF或MME返回所述UE相关的卫星覆盖信息。
  9. 根据权利要求5所述的方法，其特征在于，所述接收所述第一网元发送的所述UE相关的卫星覆盖信息还包括：
    向所述第一网元订阅所述UE相关的卫星覆盖信息，所述订阅消息能够指示所述UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项；
    接收所述第一网元根据所述订阅确定的所述UE相关的卫星覆盖信息。
  10. 根据权利要求1至9中任一项所述的方法，其特征在于，所述UE相关的卫星覆盖信息用于指示以下至少一项：
    卫星网络在指定位置和/或指定时间有无信号覆盖；
    有信号覆盖时长；
    无信号覆盖时长。
  11. 一种卫星覆盖信息获取方法，其特征在于，所述方法由第一网元执行，所述方法包括：
    接收第二网元发送的请求消息，其中，所述请求消息用于请求用户设备UE相关的卫星覆盖信息，所述请求消息能够指示所述UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项，所述UE相关的卫星覆盖信息能够指示卫星信号覆盖所述UE的情况；
    根据所述请求消息以及卫星接入网络的卫星运行信息，确定所述UE相关的卫星覆盖信息；
    向所述第二网元发送所述UE相关的卫星覆盖信息。
  12. 根据权利要求11所述的方法，其特征在于，所述接收第二网元发送的请求消息包括：
    通过网络开放功能NEF或业务能力开放功能SCEF，接收所述第二网元发送的请求消息。
  13. 根据权利要求11所述的方法，其特征在于，所述向所述第二网元发送所述UE相关的卫星覆盖信息包括：
    通过网络开放功能NEF或业务能力开放功能SCEF，向所述第二网元发送所述UE相关的卫星覆盖信息。
  14. 根据权利要求13所述的方法，其特征在于，所述向所述第二网元发送所述UE相关的卫星覆盖信息还包括：
    接收所述第二网元的UE相关的卫星覆盖信息的订阅请求，所述订阅请求能够指示所述UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项；
    发送所述第一网元根据所述订阅确定的所述UE相关的卫星覆盖信息。
  15. 一种卫星覆盖信息获取装置，其特征在于，所述装置包括收发模块，所述收发模块用于：
    向第一网元发送请求消息，其中，所述请求消息用于请求用户设备UE相关的卫星覆盖信息，所述请求消息能够指示所述UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项，所述UE相关的卫星覆盖信息能够指示卫星信号覆盖所述UE的情况；
    接收所述第一网元发送的所述UE相关的卫星覆盖信息。
  16. 一种卫星覆盖信息获取装置，其特征在于，所述装置包括：
    收发模块，用于接收第二网元发送的请求消息，其中，所述请求消息用于请求用户设备UE相关的卫星覆盖信息，所述请求消息能够指示所述UE的当前位置信息、所述UE的运动轨迹信息、指定地理位置信息、指定时间信息、卫星接入类型信息中的至少一项，所述UE相关的卫星覆盖信息能够指示卫星信号覆盖所述UE的情况；
    确定模块，用于根据所述请求消息以及卫星接入网络的卫星运行信息，确定所述UE相关的卫星覆盖信息；
    所述收发模块还用于向所述第二网元发送所述UE相关的卫星覆盖信息。
  17. 一种通信设备，其中，包括：收发器；存储器；处理器，分别与所述收发器及所述存储器连接，配置为通过执行所述存储器上的计算机可执行指令，控制所述收发器的无线信号收发，并能够实现权利要求1-14中任一项所述的方法。
  18. 一种计算机存储介质，其中，所述计算机存储介质存储有计算机可执行指令；所述计算机可执行指令被处理器执行后，能够实现权利要求1-14中任一项所述的方法。
  19. 一种通信系统，其特征在于，包括第一网元和第二网元，其中：
    所述第二网元被配置为执行如权利要求1至10中任一项所述的方法；
    所述第一网元被配置为执行如权利要求11至14中任一项所述的方法。
PCT/CN2022/133781 2022-11-23 2022-11-23 卫星覆盖信息获取方法及装置 WO2024108434A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/133781 WO2024108434A1 (zh) 2022-11-23 2022-11-23 卫星覆盖信息获取方法及装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2022/133781 WO2024108434A1 (zh) 2022-11-23 2022-11-23 卫星覆盖信息获取方法及装置

Publications (1)

Publication Number Publication Date
WO2024108434A1 true WO2024108434A1 (zh) 2024-05-30

Family

ID=91194878

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/133781 WO2024108434A1 (zh) 2022-11-23 2022-11-23 卫星覆盖信息获取方法及装置

Country Status (1)

Country Link
WO (1) WO2024108434A1 (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112771944A (zh) * 2018-09-28 2021-05-07 上海诺基亚贝尔股份有限公司 用于支持卫星接入的方法、设备和计算机可读介质
CN113596781A (zh) * 2020-04-30 2021-11-02 大唐移动通信设备有限公司 一种订阅方法、服务网元及用户数据管理网元
US20220295381A1 (en) * 2019-09-06 2022-09-15 Telefonaktiebolaget Lm Ericsson (Publ) Methods and Nodes for Communication using Preconfigured Resource Configurations

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112771944A (zh) * 2018-09-28 2021-05-07 上海诺基亚贝尔股份有限公司 用于支持卫星接入的方法、设备和计算机可读介质
US20220295381A1 (en) * 2019-09-06 2022-09-15 Telefonaktiebolaget Lm Ericsson (Publ) Methods and Nodes for Communication using Preconfigured Resource Configurations
CN113596781A (zh) * 2020-04-30 2021-11-02 大唐移动通信设备有限公司 一种订阅方法、服务网元及用户数据管理网元

Similar Documents

Publication Publication Date Title
WO2024026890A1 (zh) 一种定位方法/装置/设备及存储介质
JP2001127803A (ja) 移動体無線通信システム、無線通信ゲートウェイサーバ装置、位置情報算出システム、その方法及び記録媒体
JP2024514001A (ja) サービングセル決定方法及び装置
WO2024108434A1 (zh) 卫星覆盖信息获取方法及装置
WO2024065197A1 (zh) 全球导航卫星系统gnss信息的生效时间确定方法及装置
WO2024077455A1 (zh) 一种非陆地网络的接入方法及装置
WO2023010566A1 (zh) 网络切片接纳控制功能的选择方法及装置
WO2024124579A1 (zh) 一种接入异常处理方法及装置
WO2024098308A1 (zh) 一种确定定位卫星的方法及装置
WO2024092662A1 (zh) 时间信息上报方法、装置、通信设备及存储介质
WO2024108600A1 (zh) 应用服务的处理方法及装置
EP4319303A1 (en) Policy control function network element selection method and apparatus
WO2024087073A1 (zh) 基于ai网络功能的处理方法及装置
WO2024138389A1 (zh) 一种中继通信处理方法及装置
WO2024183017A1 (zh) 模型配置方法及装置
WO2024159356A1 (zh) 业务处理方法及装置
WO2024016362A1 (zh) 网络感知服务的处理方法及装置
US20240348667A1 (en) Method and apparatus for selecting network slice admission control function
WO2024077501A1 (zh) 侧行链路的功率确定方法及装置
WO2024060025A1 (zh) 通信管理方法及装置
WO2024164282A1 (zh) 一种卫星覆盖信息的获取方法、装置、设备及存储介质
US20240340977A1 (en) Method and apparatus for selecting network slice admission control function
WO2023184191A1 (zh) 一种扩展现实多媒体xrm业务的处理方法及其装置
WO2024138581A1 (zh) 一种网络切片的授权方法、装置、设备及存储介质
WO2024164358A1 (zh) 用户设备ue通信的控制方法及装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22966130

Country of ref document: EP

Kind code of ref document: A1