WO2021135858A1 - 指示方法及设备 - Google Patents

指示方法及设备 Download PDF

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Publication number
WO2021135858A1
WO2021135858A1 PCT/CN2020/134556 CN2020134556W WO2021135858A1 WO 2021135858 A1 WO2021135858 A1 WO 2021135858A1 CN 2020134556 W CN2020134556 W CN 2020134556W WO 2021135858 A1 WO2021135858 A1 WO 2021135858A1
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WIPO (PCT)
Prior art keywords
neighboring
star
list
satellite
basic
Prior art date
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PCT/CN2020/134556
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English (en)
French (fr)
Inventor
侯利明
韩波
康绍莉
缪德山
肖国军
Original Assignee
大唐移动通信设备有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Priority to EP20910511.3A priority Critical patent/EP4068648A4/en
Priority to US17/789,701 priority patent/US20230030149A1/en
Publication of WO2021135858A1 publication Critical patent/WO2021135858A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0083Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00835Determination of neighbour cell lists
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851Systems using a satellite or space-based relay
    • H04B7/18513Transmission in a satellite or space-based system
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851Systems using a satellite or space-based relay
    • H04B7/18519Operations control, administration or maintenance
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/195Non-synchronous stations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • H04W36/32Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/046Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04Large scale networks; Deep hierarchical networks
    • H04W84/06Airborne or Satellite Networks

Definitions

  • the embodiments of the present disclosure relate to the field of communication technologies, and in particular, to an indication method and device.
  • the low-orbit satellite broadband communication system has a large number of satellites and fast moving speed (satellites orbit the earth at a speed of about several kilometers per second), which causes the ground terminal to quickly and frequently switch between different satellites.
  • the low-orbit satellite broadband communication system works in a high frequency band, so the beams of the satellite and the terminal have strong directivity. Whether the terminal can obtain important information such as satellite movement, antenna beam directivity, frequency configuration, beam configuration, etc., will affect the normal use of the system.
  • the terminal In order to accurately establish a satellite-to-earth link, the terminal needs to be equipped with an antenna with strong beam directivity, and information such as antenna pointing parameters and satellite positions needs to be transmitted between systems.
  • the low-orbit satellite mobile communication system in related technologies does not need to consider the terminal beam pointing and other issues, so its neighbor cell list and parameters do not include relevant information for calculating the beam pointing, which is not applicable to low-orbit Satellite broadband communication system.
  • This method binds a set of ephemeris data and configuration parameters for the terminal by other methods before the terminal leaves the factory or is used, and is used to calculate the relevant switching parameters when the terminal is switched.
  • the method of binding configuration parameters such as ephemeris in advance can solve the problem of switching reference information to a certain extent, the long-term maintenance of this information is difficult and the timeliness is insufficient.
  • the ephemeris information is affected by the time limit, and if it is not updated for a long time, the error of the ephemeris information will become larger; on the other hand, some time-varying parameters cannot accurately reflect the current state, and these problems will affect the system use.
  • the embodiments of the present disclosure provide an indication method and device to solve the problem of inaccurate parameters caused by the influence of time limit on ephemeris information in related technologies.
  • the embodiments of the present disclosure provide an indication method, which is applied to a network device, and the method includes:
  • Acquiring satellite parameters of a current satellite cell and an adjacent satellite cell where the current satellite cell is a satellite cell where the terminal is located, and the adjacent satellite cell is a satellite cell adjacent to the current satellite cell;
  • the adjacent satellite cell includes at least one of the following:
  • a satellite cell that is adjacent to the current satellite cell moves in the same direction, and is located behind the current satellite cell;
  • a satellite cell that is adjacent to the current satellite cell is located on the same orbital plane, has the same movement direction, and is located behind the current satellite cell.
  • the sending the basic list to the terminal includes:
  • the sending the detailed list to the terminal includes:
  • the first signaling includes at least one of the following:
  • the basic list includes basic information of at least one neighboring satellite, and the basic information includes at least one of the following:
  • the first neighboring ephemeris used to indicate the relative ephemeris of neighboring stars relative to the local star;
  • the health status indicator of the first neighboring star is used to indicate whether the health status of the neighboring star and the local star are the same;
  • the polarization configuration of the first neighboring star is used to indicate whether the polarization configuration of the neighboring star and the local star are the same;
  • the first neighboring satellite frequency configuration is the first neighboring satellite frequency configuration.
  • the detailed list includes detailed information of at least one neighboring satellite, and the detailed information includes at least one of the following:
  • the second neighboring star ephemeris used to indicate the trajectory of neighboring stars
  • Neighboring star beam configuration used to indicate neighboring star beam configuration and beam availability
  • the second neighboring star frequency configuration is used to indicate the working frequency of the neighboring star
  • the second neighboring star polarization configuration is used to indicate the polarization state of each beam
  • the second neighboring star health status indicator is used to indicate the available status of the neighboring star.
  • the method further includes:
  • the information range of the detailed list is determined.
  • the embodiments of the present disclosure provide an indication method, which is applied to a terminal, and the method includes:
  • the basic list including basic information of neighboring satellites, and the detailed list including detailed information of neighboring satellites;
  • cell selection or handover is performed.
  • the receiving the basic list from the network device includes:
  • the basic list is received from the network device through a broadcast message.
  • the receiving a detailed list from the network device includes:
  • the first signaling includes at least one of the following:
  • RRC information RRC information, DCI, MAC CE.
  • the basic list includes basic information of at least one neighboring satellite, and the basic information includes at least one of the following:
  • the first neighboring ephemeris used to indicate the relative ephemeris of neighboring stars relative to the local star;
  • the health status indicator of the first neighboring star is used to indicate whether the health status of the neighboring star and the local star are the same;
  • the polarization configuration of the first neighboring star is used to indicate whether the polarization configuration of the neighboring star and the local star are the same;
  • the first neighboring satellite frequency configuration is the first neighboring satellite frequency configuration.
  • the detailed list includes detailed information of at least one neighboring satellite, and the detailed information includes at least one of the following:
  • the second neighboring star ephemeris used to indicate the trajectory of neighboring stars
  • Neighboring star beam configuration used to indicate neighboring star beam configuration and beam availability
  • the second neighboring star frequency configuration is used to indicate the working frequency of the neighboring star
  • the second neighboring star polarization configuration is used to indicate the polarization state of each beam
  • the second neighboring star health status indicator is used to indicate the available status of the neighboring star.
  • the method before the receiving the detailed list from the network device through the first signaling, the method further includes:
  • embodiments of the present disclosure provide a network device, including: a first transceiver and a first processor;
  • the first transceiver is used to obtain satellite parameters of a current satellite cell and an adjacent satellite cell, where the current satellite cell is the satellite cell where the terminal is located, and the adjacent satellite cell is a satellite cell adjacent to the current satellite cell ;
  • the first processor is configured to determine a basic list and a detailed list according to the satellite parameters of the current satellite cell and the neighboring satellite cell, the basic list including the basic information of the neighboring satellites, and the detailed list including the neighboring satellites Details;
  • the first transceiver is also used to send the basic list and/or the detailed list to the terminal.
  • the adjacent satellite cell includes at least one of the following:
  • a satellite cell that is adjacent to the current satellite cell moves in the same direction, and is located behind the current satellite cell;
  • a satellite cell that is adjacent to the current satellite cell is located on the same orbital plane, has the same movement direction, and is located behind the current satellite cell.
  • the first transceiver is further configured to send the basic list through a broadcast message.
  • the first transceiver is further configured to send the detailed list to the terminal through first signaling.
  • the first signaling includes at least one of the following:
  • RRC information RRC information, DCI, MAC CE.
  • the basic list includes basic information of at least one neighboring satellite, and the basic information includes at least one of the following:
  • the first neighboring ephemeris used to indicate the relative ephemeris of neighboring stars relative to the local star;
  • the health status indicator of the first neighboring star is used to indicate whether the health status of the neighboring star and the local star are the same;
  • the polarization configuration of the first neighboring star is used to indicate whether the polarization configuration of the neighboring star and the local star are the same;
  • the first neighboring satellite frequency configuration is the first neighboring satellite frequency configuration.
  • the detailed list includes detailed information of at least one neighboring satellite, and the detailed information includes at least one of the following:
  • the second neighboring star ephemeris used to indicate the trajectory of neighboring stars
  • Neighboring star beam configuration used to indicate neighboring star beam configuration and beam availability
  • the second neighboring star frequency configuration is used to indicate the working frequency of the neighboring star
  • the second neighboring star polarization configuration is used to indicate the polarization state of each beam
  • the second neighboring star health status indicator is used to indicate the available status of neighboring stars.
  • the first transceiver is further configured to receive a first request message from the terminal, where the first request message is used to request detailed information of neighboring satellites;
  • the first processor is further configured to determine the information range of the detailed list according to the first request message.
  • an embodiment of the present disclosure provides a terminal, including: a second transceiver and a second processor;
  • the second transceiver is configured to receive a basic list and/or a detailed list from a network device, the basic list includes basic information of neighboring satellites, and the detailed list includes detailed information of neighboring satellites;
  • the second processor is configured to perform cell selection or handover according to the basic list and/or detailed list.
  • the second transceiver is further configured to receive the basic list from the network device through a broadcast message.
  • the second transceiver is further configured to receive the detailed list from the network device through first signaling.
  • the first signaling includes at least one of the following:
  • RRC information RRC information, DCI, MAC CE.
  • the basic list includes basic information of at least one neighboring satellite, and the basic information includes at least one of the following:
  • the first neighboring ephemeris used to indicate the relative ephemeris of neighboring stars relative to the local star;
  • the health status indicator of the first neighboring star is used to indicate whether the health status of the neighboring star and the local star are the same;
  • the polarization configuration of the first neighboring star is used to indicate whether the polarization configuration of the neighboring star and the local star are the same;
  • the first neighboring satellite frequency configuration is the first neighboring satellite frequency configuration.
  • the detailed list includes detailed information of at least one neighboring satellite, and the detailed information includes at least one of the following:
  • the second neighboring star ephemeris used to indicate the trajectory of neighboring stars
  • Neighboring star beam configuration used to indicate neighboring star beam configuration and beam availability
  • the second neighboring star frequency configuration is used to indicate the working frequency of the neighboring star
  • the second neighboring star polarization configuration is used to indicate the polarization state of each beam
  • the second neighboring star health status indicator is used to indicate the available status of the neighboring star.
  • the second transceiver is further configured to send a first request message to the network device, where the first request message is used to request detailed information of neighboring satellites.
  • embodiments of the present disclosure provide a network device, including:
  • An acquisition module for acquiring satellite parameters of a current satellite cell and an adjacent satellite cell the current satellite cell is the satellite cell where the terminal is located, and the adjacent satellite cell is a satellite cell adjacent to the current satellite cell;
  • the determining module is configured to determine a basic list and a detailed list according to the satellite parameters of the current satellite cell and the neighboring satellite cell, the basic list including the basic information of the neighboring satellites, and the detailed list including the detailed information of the neighboring satellites;
  • the first sending module is configured to send the basic list and/or the detailed list to the terminal.
  • the adjacent satellite cell includes at least one of the following:
  • a satellite cell that is adjacent to the current satellite cell moves in the same direction, and is located behind the current satellite cell;
  • a satellite cell adjacent to the current satellite cell located on the same orbital plane, having the same movement direction, and located behind the current satellite cell.
  • the first sending module is further configured to send the basic list through a broadcast message.
  • the first sending module is further configured to send the detailed list to the terminal through first signaling.
  • the first signaling includes at least one of the following:
  • RRC information RRC information, DCI, MAC CE.
  • the basic list includes basic information of at least one neighboring satellite, and the basic information includes at least one of the following:
  • the first neighboring ephemeris used to indicate the relative ephemeris of neighboring stars relative to the local star;
  • the health status indicator of the first neighboring star is used to indicate whether the health status of the neighboring star and the local star are the same;
  • the polarization configuration of the first neighboring star is used to indicate whether the polarization configuration of the neighboring star and the local star are the same;
  • the first neighboring satellite frequency configuration is the first neighboring satellite frequency configuration.
  • the detailed list includes detailed information of at least one neighboring satellite, and the detailed information includes at least one of the following:
  • the second neighboring star ephemeris used to indicate the trajectory of neighboring stars
  • Neighboring star beam configuration used to indicate neighboring star beam configuration and beam availability
  • the second neighboring star frequency configuration is used to indicate the working frequency of the neighboring star
  • the second neighboring star polarization configuration is used to indicate the polarization state of each beam
  • the second neighboring star health status indicator is used to indicate the available status of the neighboring star.
  • the network device further includes:
  • the second receiving module is configured to receive a first request message from the terminal, where the first request message is used to request detailed information of neighboring satellites;
  • the determining module is further configured to determine the information range of the detailed list according to the first request message.
  • a terminal including:
  • the first receiving module is configured to receive a basic list and/or a detailed list from a network device, the basic list including basic information of neighboring satellites, and the detailed list including detailed information of neighboring satellites;
  • the processing module is configured to perform cell selection or handover according to the basic list and/or detailed list.
  • the first receiving module is further configured to receive the basic list from the network device through a broadcast message.
  • the first receiving module is further configured to receive the detailed list from the network device through first signaling.
  • the first signaling includes at least one of the following:
  • RRC information RRC information, DCI, MAC CE.
  • the basic list includes basic information of at least one neighboring satellite, and the basic information includes at least one of the following:
  • the first neighboring ephemeris used to indicate the relative ephemeris of neighboring stars relative to the local star;
  • the health status indicator of the first neighboring star is used to indicate whether the health status of the neighboring star and the local star are the same;
  • the polarization configuration of the first neighboring star is used to indicate whether the polarization configuration of the neighboring star and the local star are the same;
  • the first neighboring satellite frequency configuration is the first neighboring satellite frequency configuration.
  • the detailed list includes detailed information of at least one neighboring satellite, and the detailed information includes at least one of the following:
  • the second neighboring star ephemeris used to indicate the trajectory of neighboring stars
  • Neighboring star beam configuration used to indicate neighboring star beam configuration and beam availability
  • the second neighboring star frequency configuration is used to indicate the working frequency of the neighboring star
  • the second neighboring star polarization configuration is used to indicate the polarization state of each beam
  • the second neighboring star health status indicator is used to indicate the available status of the neighboring star.
  • the terminal further includes:
  • the second sending module is configured to send a first request message to the network device, where the first request message is used to request detailed information of neighboring satellites.
  • an embodiment of the present disclosure provides a communication device, including a processor, a memory, and a program stored on the memory and capable of running on the processor, and when the program is executed by the processor, the implementation is as follows: The operation of the instruction method described in the first aspect.
  • the embodiments of the present disclosure provide a terminal, including a processor, a memory, and a program stored on the memory and capable of running on the processor.
  • the program is executed by the processor, the implementation is as follows: The operation of the instruction method described in the second aspect.
  • embodiments of the present disclosure provide a processor-readable storage medium, the computer-readable storage medium stores a program, and when the program is executed by the processor, the operation of the instruction method as described in the first aspect is implemented, Or, the operation of the instruction method as described in the second aspect.
  • the network device determines the basic list including the basic information of the neighboring satellites and the detailed information including the detailed information of the neighboring satellites based on the current satellite cell where the terminal is located and the satellite parameters of the neighboring satellite cells adjacent to the current satellite cell.
  • List the terminal selects or switches cells according to the basic list and/or detailed list, so that the ephemeris information carried by the neighbor satellite list is more timely and effective, which can reduce the long-term error of the terminal’s local binding ephemeris and make the configuration parameters more Accurate, to ensure that the system can be used normally.
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the disclosure
  • FIG. 2 is one of the schematic flowcharts of the indication method provided by the embodiments of the disclosure.
  • FIG. 3 is a schematic diagram of an application scenario provided by an embodiment of the disclosure.
  • FIG. 4 is the second schematic diagram of the flow of the indication method provided by an embodiment of the disclosure.
  • FIG. 5 is one of the schematic structural diagrams of the network device provided by the embodiments of the disclosure.
  • FIG. 6 is one of the schematic structural diagrams of a terminal provided by an embodiment of the disclosure.
  • FIG. 7 is the second structural diagram of a network device provided by an embodiment of the disclosure.
  • FIG. 8 is the second structural diagram of a terminal provided by an embodiment of the disclosure.
  • FIG. 9 is a schematic structural diagram of a network device provided by an embodiment of the disclosure.
  • FIG. 10 is a schematic structural diagram of a terminal provided by an embodiment of the disclosure.
  • words such as “exemplary” or “for example” are used as examples, illustrations, or illustrations. Any embodiment or design solution described as “exemplary” or “for example” in the embodiments of the present disclosure should not be construed as being more optional or advantageous than other embodiments or design solutions. To be precise, words such as “exemplary” or “for example” are used to present related concepts in a specific manner.
  • the technology described in this article is not limited to the fifth-generation mobile communication (5th-generation, 5G) system and subsequent evolution communication systems, and is not limited to the LTE/LTE evolution (LTE-Advanced, LTE-A) system, and can also be used for various A kind of wireless communication system, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (Frequency Division Multiple Access, FDMA), Orthogonal Frequency Division Multiple Access (Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems.
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • the terms “system” and “network” are often used interchangeably.
  • the CDMA system can implement radio technologies such as CDMA2000 and Universal Terrestrial Radio Access (UTRA).
  • UTRA includes Wideband Code Division Multiple Access (WCDMA) and other CDMA variants.
  • the TDMA system can implement radio technologies such as the Global System for Mobile Communication (GSM).
  • OFDMA system can realize such as Ultra Mobile Broadband (UMB), Evolved UTRA ((Evolution-UTRA, E-UTRA)), IEEE 802.11 ((Wi-Fi)), IEEE 802.16 ((WiMAX)), IEEE 802.20, Flash-OFDM and other radio technologies.
  • UMB Ultra Mobile Broadband
  • Evolved UTRA (Evolution-UTRA, E-UTRA)
  • IEEE 802.11 (Wi-Fi)
  • IEEE 802.16 (WiMAX)
  • IEEE 802.20 Flash-OFDM and other radio technologies.
  • UMB Ultra Mobile Broadband
  • Evolved UTRA (Evolution-U
  • LTE and more advanced LTE are new UMTS versions that use E-UTRA.
  • UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project” (3GPP).
  • CDMA2000 and UMB are described in documents from an organization named “3rd Generation Partnership Project 2" (3GPP2).
  • the techniques described in this article can be used for the systems and radio technologies mentioned above, as well as other systems and radio technologies.
  • the terminal communicates with network equipment through satellites. Due to the low orbital height of satellites and fast operation speed, in order to achieve global coverage, a large number of satellites are generally required to form a constellation, and the entire constellation system provides services for users. Taking a satellite with an orbital altitude of 1000km as an example, the ground terminal's visibility to the satellite at the same location on the ground is about 10 minutes. In order to maintain uninterrupted access services, the ground terminal needs to switch quickly and frequently between different satellites.
  • the figure shows a scenario where two satellite cells cover ground terminals, including: a first satellite 11, a second satellite 12, a terminal 13, and a network device 14.
  • the network device 14 may be a gateway station or a satellite base station, etc. .
  • the solid lines in FIG. 1 indicate the satellite cell ranges corresponding to the first satellite 11 and the second satellite 12; the first satellite 11 and the second satellite 12 communicate with the network device 14 in a wireless communication mode; the terminal 13 and
  • the network devices 14 may adopt wired or wireless communication modes, which are not specifically limited in the embodiment of the present disclosure.
  • the figure shows the direction of movement of the first satellite 11 and the second satellite 12. Due to the movement of the satellite, the terminal 13 needs to switch between the satellite cells corresponding to the two satellites. Accordingly, the first satellite 11 corresponds to The satellite cell of is the target cell, and the satellite cell corresponding to the second satellite 12 is the source cell.
  • an embodiment of the present disclosure provides an indication method.
  • the execution body of the method is a network device, and the network device may be a gateway station or a satellite base station.
  • the method includes the following steps:
  • Step 201 Obtain satellite parameters of the current satellite cell and neighboring satellite cells
  • the current satellite cell is the satellite cell where the terminal is located, and the neighboring satellite cell is the satellite cell adjacent to the current satellite cell; the current satellite is obtained through the network device, and one or more neighbors adjacent to the current satellite are obtained.
  • Satellite parameters of the satellite may include ephemeris information, beam configuration information, operating frequency, polarization configuration, satellite health status indication, etc.
  • FIG 3 shows a low-orbit mobile broadband Internet constellation system. Assuming that each satellite is an independent cell, the situation of adjacent coverage of multiple satellites is shown in Figure 3, where the terminal 30 is on the satellite corresponding to the satellite 1. In the cell, that is, satellite 1 corresponds to the current satellite cell.
  • Method 1 Add all satellite cells adjacent to the current satellite cell into the list
  • the adjacent satellite cells include all satellite cells adjacent to the current satellite cell.
  • the satellite cells numbered 2 to 7 are all adjacent satellite cells, and the information of satellites 2 to 7 is included in the adjacent satellite cells. In the cell list.
  • Method 2 Include the neighboring cells in the rear with the current satellite moving in the same direction into the list;
  • adjacent satellite cells include satellite cells that are adjacent to the current satellite cell, have the same moving direction, and are located behind the current satellite cell.
  • the satellite cells numbered 3 to 5 are all adjacent satellite cells. The information of satellite 3 to satellite 5 is included in the neighbor cell list.
  • Method 3 Include the neighboring satellites that are in the same orbital plane as the current satellite and in the same direction of motion, and are in the rear;
  • neighboring satellite cells include satellite cells that are adjacent to the current satellite cell, are located on the same orbital plane, move in the same direction, and are located behind the current satellite cell. Taking Figure 3 as an example, only the satellite cell number 4 is adjacent. Satellite cell, the information of satellite 4 is included in the neighbor cell list.
  • Step 202 Determine a basic list and a detailed list according to the satellite parameters of the current satellite cell and neighboring satellite cells;
  • the network device formulates a neighbor cell list based on the acquired satellite parameters, including: a basic list and a detailed list.
  • the basic list includes basic information of neighboring satellites, for example, it may include one or more neighbors adjacent to the current satellite.
  • the detailed list includes detailed information of neighboring satellites.
  • the content of the list can be flexibly configured on demand, including support for multiple neighboring satellites, Various parameter information, etc., the quantity can be flexibly expanded.
  • the basic list may only include parameters of adjacent satellites on the same orbital plane, the basic list includes basic information of at least one adjacent satellite, and the basic information includes at least one of the following:
  • the first neighboring ephemeris used to indicate the relative ephemeris of neighboring stars relative to the local star;
  • the health status indicator of the first neighboring star is used to indicate whether the health status of the neighboring star and the local star are the same.
  • the same as the local star is “1” and the difference is “0";
  • the polarization configuration of the first neighboring star is used to indicate whether the polarization configuration of the neighboring star and the local star are the same.
  • the same as the local star is "1", and the difference is "0";
  • the frequency configuration of the first neighboring satellite can optionally be represented by 2 bits in the case of frequency four-color multiplexing.
  • the detailed list includes detailed information of at least one neighboring satellite, and the detailed information includes at least one of the following:
  • ID Neighboring star identity
  • the neighboring star ID is used to distinguish satellites
  • the second neighboring star ephemeris used to indicate the trajectory of neighboring stars
  • Neighboring star beam configuration used to indicate neighboring star beam configuration and beam availability
  • the second adjacent satellite frequency configuration is used to indicate the operating frequency of the adjacent satellite, and supports the operating frequency according to the beam configuration;
  • the second neighboring star polarization configuration is used to indicate the polarization state of each beam.
  • "0" means left-handed circular polarization
  • "1" means right-handed circular polarization
  • the second neighboring star health status indicator is used to indicate the available status of the neighboring star. Optionally, it is indicated by 1b it, “0" indicates that the neighboring star is not available, and “1" indicates that the neighboring star is working normally.
  • Step 203 Send the basic list and/or detailed list to the terminal;
  • the network device can choose to send the basic list to the terminal, or can choose to send the detailed list to the terminal, or can choose to send both the basic list and the detailed list to the terminal.
  • the network device sends the basic list through a broadcast message, and the sending period of the basic list may be 80 ms, 160 ms, etc., which can be set according to the system plan.
  • the network device sends the detailed list to the terminal through first signaling, that is, sends the detailed list through dedicated signaling.
  • the first signaling includes at least one of the following: Radio Resource Control (RRC) information, downlink control Information (Downlink Control Information, DCI), media access control layer control element (Media Access Control Element, MAC CE).
  • RRC Radio Resource Control
  • DCI Downlink Control Information
  • MAC CE media access control layer control element
  • the network device receives a first request message, such as an RRC request message, from the terminal, where the first request message is used to request detailed information of neighboring satellites.
  • the network device determines the information range of the detailed list according to the first request message, so as to flexibly configure the content of the detailed list according to the needs of the terminal.
  • the number of adjacent satellites can also be expanded according to the request of the terminal, and the maximum support for the cell parameters of the entire network Transmission.
  • the neighbor cell list information including the ephemeris information, beam configuration information, operating frequency, polarization configuration, satellite health status indication, etc. of the satellite is designed to be divided into a basic list and a detailed list, and broadcast periodically through the network
  • the basic list and dedicated signaling transmit the detailed list to indicate the relevant information for the terminal.
  • the ephemeris information carried by the neighbor cell list is more timely and effective, and can reduce the long-term error of the terminal's local binding of the ephemeris; on the other hand,
  • the terminal can choose to obtain the neighbor cell list in a broadcast message or an RRC request or two simultaneous manners as needed, which increases the flexibility of the system.
  • an embodiment of the present disclosure provides an indication method.
  • the execution subject of the method is a network terminal.
  • the method includes the following steps:
  • Step 401 Receive a basic list and/or detailed list from a network device
  • the terminal receives the neighbor cell list from the network device, including: a basic list and a detailed list, where the basic list includes basic information of neighboring satellites, for example, may include satellites of one or several satellites adjacent to the current satellite. Calendar information, beam configuration information, operating frequency, polarization configuration, satellite health status indication, etc.:
  • the detailed list includes detailed information about neighboring satellites. The content of the list can be flexibly configured on demand, including support for multiple neighboring satellites and various parameter information And so on, the number can be flexibly expanded.
  • the basic list may only include parameters of adjacent satellites on the same orbital plane, the basic list includes basic information of at least one adjacent satellite, and the basic information includes at least one of the following:
  • the first neighboring ephemeris used to indicate the relative ephemeris of neighboring stars relative to the local star;
  • the health status indicator of the first neighboring star is used to indicate whether the health status of the neighboring star and the local star are the same.
  • the same as the local star is “1” and the difference is “0";
  • the polarization configuration of the first neighboring star is used to indicate whether the polarization configuration of the neighboring star and the local star are the same.
  • the same as the local star is "1", and the difference is "0";
  • the frequency configuration of the first neighboring satellite can optionally be represented by 2 bits in the case of frequency four-color multiplexing.
  • the detailed list includes detailed information of at least one neighboring satellite, and the detailed information includes at least one of the following:
  • ID Neighboring star identity
  • the neighboring star ID is used to distinguish satellites
  • the second neighboring star ephemeris used to indicate the trajectory of neighboring stars
  • Neighboring star beam configuration used to indicate neighboring star beam configuration and beam availability
  • the second neighboring star frequency configuration is used to indicate the neighboring star's working frequency, and it supports configuring the working frequency according to the beam;
  • the second neighboring star polarization configuration is used to indicate the polarization state of each beam.
  • "0" means left-handed circular polarization
  • "1" means right-handed circular polarization
  • the second neighboring star health status indicator is used to indicate the available status of the neighboring star. Optionally, it is indicated by 1 bit, “0" indicates that the neighboring star is not available, and “1” indicates that the neighboring star is working normally.
  • the terminal receives the basic list from the network device through a broadcast message, and the transmission period of the basic list may be 80 ms, 160 ms, etc., which can be set according to the system plan.
  • the terminal receives the detailed list from the network device through the first signaling, that is, receives the detailed list through dedicated signaling, and the first signaling includes at least one of the following: RRC information, DCI, MAC CE.
  • the terminal before the terminal receives the detailed list from the network device through the first signaling, it sends a first request message, such as an RRC request message, to the network device, where the first request message is used to request detailed information of neighboring satellites.
  • the network device determines the information range of the detailed list according to the first request message, so that the content of the detailed list can be flexibly configured according to the needs of the terminal.
  • the number of neighboring satellites can also be expanded according to the request of the terminal user to support the cell of the entire network. Transmission of parameters.
  • the terminal can obtain the basic list and parameters from the broadcast message on the network side, and can also obtain the detailed list and parameters from the network side through the RRC request; the terminal can flexibly choose which way to obtain the neighbor cell list and parameters.
  • Step 402 Perform cell selection or handover according to the basic list and/or detailed list
  • the terminal uses the parameters in the basic list and/or detailed list to perform cell selection or handover.
  • the terminal uses the received neighbor cell list and parameters to perform cell selection and reselection in the idle state, and cell handover in the active state of the terminal.
  • the terminal calculates the time and location when the terminal will enter the new cell according to the current geographic location, movement status, and ephemeris information of the neighboring cell, and guides the terminal to configure relevant parameters and prepare to enter New district.
  • the neighbor cell list information including the ephemeris information, beam configuration information, operating frequency, polarization configuration, satellite health status indication, etc. of the satellite is designed to be divided into a basic list and a detailed list, and broadcast periodically through the network
  • the basic list and dedicated signaling transmit the detailed list to indicate the relevant information for the terminal.
  • the ephemeris information carried by the neighbor cell list is more timely and effective, and can reduce the long-term error of the terminal's local binding of the ephemeris; on the other hand,
  • the terminal can choose to obtain the neighbor cell list in a broadcast message or an RRC request or two simultaneous manners as needed, which increases the flexibility of the system.
  • an embodiment of the present disclosure provides a network device 500, including: a first transceiver 501 and a first processor 502;
  • the first transceiver 501 is used to obtain satellite parameters of a current satellite cell and an adjacent satellite cell.
  • the current satellite cell is the satellite cell where the terminal is located, and the adjacent satellite cell is a satellite adjacent to the current satellite cell.
  • the first processor 502 is configured to determine a basic list and a detailed list according to the satellite parameters of the current satellite cell and the neighboring satellite cell, the basic list including the basic information of the neighboring satellites, and the detailed list including the neighboring satellites. Satellite details;
  • the first transceiver 501 is also used to send the basic list and/or the detailed list to the terminal.
  • the adjacent satellite cell includes at least one of the following:
  • a satellite cell that is adjacent to the current satellite cell moves in the same direction, and is located behind the current satellite cell;
  • a satellite cell adjacent to the current satellite cell located on the same orbital plane, having the same movement direction, and located behind the current satellite cell.
  • the first transceiver 501 is further configured to send the basic list to the terminal through a broadcast message.
  • the first transceiver 501 is further configured to send the detailed list to the terminal through first signaling.
  • the first signaling includes at least one of the following:
  • RRC information RRC information, DCI, MAC CE.
  • the basic list includes basic information of at least one neighboring satellite, and the basic information includes at least one of the following:
  • the first neighboring ephemeris used to indicate the relative ephemeris of neighboring stars relative to the local star;
  • the health status indicator of the first neighboring star is used to indicate whether the health status of the neighboring star and the local star are the same;
  • the polarization configuration of the first neighboring star is used to indicate whether the polarization configuration of the neighboring star and the local star are the same;
  • the first neighboring satellite frequency configuration is the first neighboring satellite frequency configuration.
  • the detailed list includes detailed information of at least one neighboring satellite, and the detailed information includes at least one of the following:
  • the second neighboring star ephemeris used to indicate the trajectory of neighboring stars
  • Neighboring star beam configuration used to indicate neighboring star beam configuration and beam availability
  • the second neighboring star frequency configuration is used to indicate the working frequency of the neighboring star
  • the second neighboring star polarization configuration is used to indicate the polarization state of each beam
  • the second neighboring star health status indicator is used to indicate the available status of the neighboring star.
  • the first transceiver 501 is further configured to receive a first request message from the terminal, where the first request message is used to request detailed information of neighboring satellites;
  • the first processor 502 is further configured to determine the information range of the detailed list according to the first request message.
  • the neighbor cell list information including the ephemeris information, beam configuration information, operating frequency, polarization configuration, satellite health status indication, etc. of the satellite is designed to be divided into a basic list and a detailed list, and broadcast periodically through the network
  • the basic list and dedicated signaling transmit the detailed list to indicate the relevant information for the terminal.
  • the ephemeris information carried by the neighbor cell list is more timely and effective, and can reduce the long-term error of the terminal's local binding of the ephemeris; on the other hand,
  • the terminal can choose to obtain the neighbor cell list in a broadcast message or an RRC request or two simultaneous manners as needed, which increases the flexibility of the system.
  • an embodiment of the present disclosure provides a terminal 600, including: a second transceiver 601 and a second processor 602;
  • the second transceiver 601 is configured to receive a basic list and/or a detailed list from a network device, the basic list includes basic information of neighboring satellites, and the detailed list includes detailed information of neighboring satellites;
  • the second processor 602 is configured to perform cell selection or handover according to the basic list and/or detailed list.
  • the second transceiver 601 is further configured to receive the basic list from the network device through a broadcast message.
  • the second transceiver 601 is further configured to receive the detailed list from the network device through first signaling.
  • the first signaling includes at least one of the following:
  • RRC information RRC information, DCI, MAC CE.
  • the basic list includes basic information of at least one neighboring satellite, and the basic information includes at least one of the following:
  • the first neighboring ephemeris used to indicate the relative ephemeris of neighboring stars relative to the local star;
  • the health status indicator of the first neighboring star is used to indicate whether the health status of the neighboring star and the local star are the same;
  • the polarization configuration of the first neighboring star is used to indicate whether the polarization configuration of the neighboring star and the local star are the same;
  • the first neighboring satellite frequency configuration is the first neighboring satellite frequency configuration.
  • the detailed list includes detailed information of at least one neighboring satellite, and the detailed information includes at least one of the following:
  • the second neighboring star ephemeris used to indicate the trajectory of neighboring stars
  • Neighboring star beam configuration used to indicate neighboring star beam configuration and beam availability
  • the second neighboring star frequency configuration is used to indicate the working frequency of the neighboring star
  • the second neighboring star polarization configuration is used to indicate the polarization state of each beam
  • the second neighboring star health status indicator is used to indicate the available status of the neighboring star.
  • the second transceiver 601 is further configured to send a first request message to the network device, where the first request message is used to request detailed information of neighboring satellites.
  • the neighbor cell list information including the ephemeris information, beam configuration information, operating frequency, polarization configuration, satellite health status indication, etc. of the satellite is designed to be divided into a basic list and a detailed list, and broadcast periodically through the network
  • the basic list and dedicated signaling transmit the detailed list to indicate the relevant information for the terminal.
  • the ephemeris information carried by the neighbor cell list is more timely and effective, and can reduce the long-term error of the terminal's local binding of the ephemeris; on the other hand,
  • the terminal can choose to obtain the neighbor cell list in a broadcast message or an RRC request or two simultaneous manners as needed, which increases the flexibility of the system.
  • an embodiment of the present disclosure provides a network device 700, including:
  • the obtaining module 701 is configured to obtain satellite parameters of a current satellite cell and an adjacent satellite cell, where the current satellite cell is the satellite cell where the terminal is located, and the adjacent satellite cell is a satellite cell adjacent to the current satellite cell;
  • the determining module 702 is configured to determine a basic list and a detailed list according to the satellite parameters of the current satellite cell and neighboring satellite cells, the basic list including basic information of neighboring satellites, and the detailed list including detailed information of the neighboring satellites ;
  • the first sending module 703 is configured to send the basic list and/or the detailed list to the terminal.
  • the adjacent satellite cell includes at least one of the following:
  • a satellite cell that is adjacent to the current satellite cell moves in the same direction, and is located behind the current satellite cell;
  • a satellite cell adjacent to the current satellite cell located on the same orbital plane, having the same movement direction, and located behind the current satellite cell.
  • the first sending module is further configured to send the basic list to the terminal through a broadcast message.
  • the first sending module is further configured to send the detailed list to the terminal through first signaling.
  • the first signaling includes at least one of the following:
  • RRC information RRC information, DCI, MAC CE.
  • the basic list includes basic information of at least one neighboring satellite, and the basic information includes at least one of the following:
  • the first neighboring ephemeris used to indicate the relative ephemeris of neighboring stars relative to the local star;
  • the health status indicator of the first neighboring star is used to indicate whether the health status of the neighboring star and the local star are the same;
  • the polarization configuration of the first neighboring star is used to indicate whether the polarization configuration of the neighboring star and the local star are the same;
  • the first neighboring satellite frequency configuration is the first neighboring satellite frequency configuration.
  • the detailed list includes detailed information of at least one neighboring satellite, and the detailed information includes at least one of the following:
  • the second neighboring star ephemeris used to indicate the trajectory of neighboring stars
  • Neighboring star beam configuration used to indicate neighboring star beam configuration and beam availability
  • the second neighboring star frequency configuration is used to indicate the working frequency of the neighboring star
  • the second neighboring star polarization configuration is used to indicate the polarization state of each beam
  • the second neighboring star health status indicator is used to indicate the available status of the neighboring star.
  • the network device 700 further includes:
  • the second receiving module is configured to receive a first request message from the terminal, where the first request message is used to request detailed information of neighboring satellites;
  • the determining module is further configured to determine the information range of the detailed list according to the first request message.
  • the neighbor cell list information including the ephemeris information, beam configuration information, operating frequency, polarization configuration, satellite health status indication, etc. of the satellite is designed to be divided into a basic list and a detailed list, and broadcast periodically through the network
  • the basic list and dedicated signaling transmit the detailed list to indicate the relevant information for the terminal.
  • the ephemeris information carried by the neighbor cell list is more timely and effective, and can reduce the long-term error of the terminal's local binding of the ephemeris; on the other hand,
  • the terminal can choose to obtain the neighbor cell list in a broadcast message or an RRC request or two simultaneous manners as needed, which increases the flexibility of the system.
  • an embodiment of the present disclosure provides a terminal 800, including:
  • the first receiving module 801 is configured to receive a basic list and/or a detailed list from a network device, the basic list including basic information of neighboring satellites, and the detailed list including detailed information of neighboring satellites;
  • the processing module 802 is configured to perform cell selection or handover according to the basic list and/or detailed list.
  • the first receiving module is further configured to receive the basic list from the network device through a broadcast message.
  • the first receiving module is further configured to receive the detailed list from the network device through first signaling.
  • the first signaling includes at least one of the following:
  • RRC information RRC information, DCI, MAC CE.
  • the basic list includes basic information of at least one neighboring satellite, and the basic information includes at least one of the following:
  • the first neighboring ephemeris used to indicate the relative ephemeris of neighboring stars relative to the local star;
  • the health status indicator of the first neighboring star is used to indicate whether the health status of the neighboring star and the local star are the same;
  • the polarization configuration of the first neighboring star is used to indicate whether the polarization configuration of the neighboring star and the local star are the same;
  • the first neighboring satellite frequency configuration is the first neighboring satellite frequency configuration.
  • the detailed list includes detailed information of at least one neighboring satellite, and the detailed information includes at least one of the following:
  • the second neighboring star ephemeris used to indicate the trajectory of neighboring stars
  • Neighboring star beam configuration used to indicate neighboring star beam configuration and beam availability
  • the second neighboring star frequency configuration is used to indicate the working frequency of the neighboring star
  • the second neighboring star polarization configuration is used to indicate the polarization state of each beam
  • the second neighboring star health status indicator is used to indicate the available status of the neighboring star.
  • the terminal 800 further includes:
  • the second sending module is configured to send a first request message to the network device, where the first request message is used to request detailed information of neighboring satellites.
  • the neighbor cell list information including the ephemeris information, beam configuration information, operating frequency, polarization configuration, satellite health status indication, etc. of the satellite is designed to be divided into a basic list and a detailed list, and broadcast periodically through the network
  • the basic list and dedicated signaling transmit the detailed list to indicate the relevant information for the terminal.
  • the ephemeris information carried by the neighbor cell list is more timely and effective, and can reduce the long-term error of the terminal's local binding of the ephemeris; on the other hand,
  • the terminal can choose to obtain the neighbor cell list in a broadcast message or an RRC request or two simultaneous manners as needed, which increases the flexibility of the system.
  • an embodiment of the present disclosure provides a network device 900, which includes a processor 901, a transceiver 902, a memory 903, and a bus interface.
  • the processor 901 may be responsible for managing the bus architecture and general processing.
  • the memory 903 may store data used by the processor 901 when performing operations.
  • the network device 900 may further include: a program stored on the memory 903 and running on the processor 901, and when the program is executed by the processor 901, the operation of the method provided in the embodiment of the present disclosure is implemented.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 901 and various circuits of the memory represented by the memory 903 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits. These are all known in the art. Therefore, the embodiments of the present disclosure will not further describe them.
  • the bus interface provides the interface.
  • the transceiver 902 may be a plurality of elements, including a transmitter and a receiver, and provide a unit for communicating with various other devices on the transmission medium.
  • an embodiment of the present disclosure provides a terminal 1000, which includes a processor 1001, a transceiver 1002, a memory 1003, and a bus interface.
  • the processor 1001 may be responsible for managing the bus architecture and general processing.
  • the memory 1003 may store data used by the processor 1001 when performing operations.
  • the terminal 1000 may further include: a program stored in the memory 1003 and running on the processor 1001, and when the program is executed by the processor 1001, the steps of the method provided in the embodiment of the present disclosure are implemented.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 1001 and various circuits of the memory represented by the memory 1003 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits. These are all known in the art. Therefore, the embodiments of the present disclosure will not further describe them.
  • the bus interface provides the interface.
  • the transceiver 1002 may be a plurality of elements, including a transmitter and a receiver, and provide a unit for communicating with various other devices on a transmission medium.
  • the embodiments of the present disclosure also provide a processor-readable storage medium, and a program is stored on the processor-readable storage medium.
  • a program is stored on the processor-readable storage medium.
  • the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk, or optical disk, etc.
  • the division of the various modules of the above network equipment and the terminal is only a division of logical functions, and may be fully or partially integrated into one physical entity in actual implementation, or may be physically separated.
  • these modules can all be implemented in the form of software called by processing elements; they can also be implemented in the form of hardware; some modules can be implemented in the form of calling software by processing elements, and some of the modules can be implemented in the form of hardware.
  • the determining module may be a separately established processing element, or it may be integrated in a chip of the above-mentioned device for implementation.
  • each step of the above method or each of the above modules can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.
  • each module, unit, sub-unit or sub-module may be one or more integrated circuits configured to implement the above method, for example: one or more application specific integrated circuits (ASIC), or one or Multiple microprocessors (digital signal processor, DSP), or one or more field programmable gate arrays (Field Programmable Gate Array, FPGA), etc.
  • ASIC application specific integrated circuit
  • DSP digital signal processor
  • FPGA Field Programmable Gate Array
  • the processing element may be a general-purpose processor, such as a central processing unit (CPU) or other processors that can call program codes.
  • these modules can be integrated together and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip

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Abstract

本公开实施例提供一种指示方法及设备,方法包括:获取当前卫星小区和邻卫星小区的卫星参数,当前卫星小区为终端所在的卫星小区,邻卫星小区为与当前卫星小区相邻的卫星小区;根据当前卫星小区和邻卫星小区的卫星参数,确定基本列表和详细列表,基本列表包括邻卫星的基本信息,详细列表包括邻卫星的详细信息;向终端发送基本列表和/或详细列表。

Description

指示方法及设备
相关申请的交叉引用
本申请主张在2019年12月30日在中国提交的中国专利申请号No.201911393963.1的优先权,其全部内容通过引用包含于此。
技术领域
本公开实施例涉及通信技术领域,特别涉及一种指示方法及设备。
背景技术
低轨卫星宽带通信系统卫星数量多、运动速度快(卫星大约以几公里每秒的速度环绕地球运动),造成地面终端需要在不同的卫星间快速、频繁切换。为了提供宽带数据接入服务,低轨卫星宽带通信系统工作在高频段,因此卫星和终端的波束均具有较强的指向性。终端能否获得卫星移动、天线波束指向性、频率配置、波束配置等重要信息,将影响系统的正常使用。
对于低轨卫星宽带互联网星座系统而言,由于工作频段高,为了准确建立星地链路,终端需要配置波束指向性强的天线,天线指向参数、卫星位置等信息需要在系统间传输。
相关技术中的低轨卫星移动通信系统,如铱星系统,因为不需要考虑终端波束指向等问题,所以其邻小区列表及参数中不包含相关用于计算波束指向的信息,不适用于低轨卫星宽带通信系统。
目前有一种采用提前装订星历及配置参数列表的方式。该方式在终端出厂前或使用前,通过其他方式为终端装订一组星历数据及配置参数,用于终端切换时计算相关切换参数。
提前装订星历等配置参数的方法虽然在一定程度上能够解决切换基准信息问题,但是该信息的长期维护较为困难,且及时性不足。一方面,星历信息受时限的影响,长时间不更新会导致星历信息误差变大;另一方面,对于一些时变的参数不能准确体现当前状态,这些问题都会影响系统使用。
发明内容
本公开实施例提供一种指示方法及设备,解决相关技术中星历信息受时限的影响,导致参数不准确的问题。
第一方面,本公开实施例提供一种指示方法,应用于网络设备,所述方法包括:
获取当前卫星小区和邻卫星小区的卫星参数,所述当前卫星小区为终端所在的卫星小区,所述邻卫星小区为与所述当前卫星小区相邻的卫星小区;
根据所述当前卫星小区和邻卫星小区的卫星参数,确定基本列表和详细列表,所述基本列表包括邻卫星的基本信息,所述详细列表包括所述邻卫星的详细信息;
向终端发送所述基本列表和/或所述详细列表。
可选地,所述邻卫星小区包括以下至少一项:
与所述当前卫星小区相邻的所有卫星小区;
与所述当前卫星小区相邻、运动方向一致,且位于所述当前卫星小区后方的卫星小区;
与所述当前卫星小区相邻、位于同一轨道面、运动方向一致、且位于所述当前卫星小区后方的卫星小区。
可选地,所述向终端发送所述基本列表,包括:
通过广播消息向所述终端发送所述基本列表。
可选地,所述向终端发送所述详细列表,包括:
通过第一信令向所述终端发送所述详细列表。
可选地,所述第一信令包括以下至少一项:
无线资源控制RRC信息、下行控制信息DCI、媒体接入控制层控制单元MAC CE。
可选地,所述基本列表包括至少一个邻卫星的基本信息,所述基本信息包括以下至少一项:
第一邻星星历,用于表示邻星相对本星的相对星历;
第一邻星健康状态指示,用于指示邻星与本星的健康状态是否相同;
第一邻星极化配置,用于指示邻星与本星的极化配置是否相同;
第一邻星频率配置。
可选地,所述详细列表包括至少一个邻卫星的详细信息,所述详细信息包括以下至少一项:
邻星身份标识ID;
第二邻星星历,用于指示邻星运行轨迹;
邻星波束配置,用于指示邻星波束配置及波束可用性;
第二邻星频率配置,用于指示邻星工作频率;
第二邻星极化配置,用于表示每个波束的极化状态;
第二邻星健康状态指示,用于指示邻星的可用状态。
可选地,在所述确定详细列表之前,所述方法还包括:
从所述终端接收第一请求消息,所述第一请求消息用于请求邻卫星的详细信息;
所述确定详细列表,包括:
根据所述第一请求消息,确定详细列表的信息范围。
第二方面,本公开实施例提供一种指示方法,应用于终端,所述方法包括:
从网络设备接收基本列表和/或详细列表,所述基本列表包括邻卫星的基本信息,所述详细列表包括邻卫星的详细信息;
根据所述基本列表和/或详细列表,进行小区选择或切换。
可选地,所述从网络设备接收基本列表,包括:
通过广播消息从所述网络设备接收所述基本列表。
可选地,所述从网络设备接收详细列表,包括:
通过第一信令从所述网络设备接收所述详细列表。
可选地,所述第一信令包括以下至少一项:
RRC信息、DCI、MAC CE。
可选地,所述基本列表包括至少一个邻卫星的基本信息,所述基本信息包括以下至少一项:
第一邻星星历,用于表示邻星相对本星的相对星历;
第一邻星健康状态指示,用于指示邻星与本星的健康状态是否相同;
第一邻星极化配置,用于指示邻星与本星的极化配置是否相同;
第一邻星频率配置。
可选地,所述详细列表包括至少一个邻卫星的详细信息,所述详细信息包括以下至少一项:
邻星ID;
第二邻星星历,用于指示邻星运行轨迹;
邻星波束配置,用于指示邻星波束配置及波束可用性;
第二邻星频率配置,用于指示邻星工作频率;
第二邻星极化配置,用于表示每个波束的极化状态;
第二邻星健康状态指示,用于指示邻星的可用状态。
可选地,在所述通过第一信令从所述网络设备接收所述详细列表之前,所述方法还包括:
向所述网络设备发送第一请求消息,所述第一请求消息用于请求邻卫星的详细信息。
第三方面,本公开实施例提供一种网络设备,包括:第一收发机和第一处理器;
所述第一收发机,用于获取当前卫星小区和邻卫星小区的卫星参数,所述当前卫星小区为终端所在的卫星小区,所述邻卫星小区为与所述当前卫星小区相邻的卫星小区;
所述第一处理器,用于根据所述当前卫星小区和邻卫星小区的卫星参数,确定基本列表和详细列表,所述基本列表包括邻卫星的基本信息,所述详细列表包括所述邻卫星的详细信息;
所述第一收发机,还用于向终端发送所述基本列表和/或所述详细列表。
可选地,所述邻卫星小区包括以下至少一项:
与所述当前卫星小区相邻的所有卫星小区;
与所述当前卫星小区相邻、运动方向一致,且位于所述当前卫星小区后方的卫星小区;
与所述当前卫星小区相邻、位于同一轨道面、运动方向一致、且位于所述当前卫星小区后方的卫星小区。
可选地,所述第一收发机,进一步用于通过广播消息发送所述基本列表。
可选地,所述第一收发机,进一步用于通过第一信令向所述终端发送所述详细列表。
可选地,所述第一信令包括以下至少一项:
RRC信息、DCI、MAC CE。
可选地,所述基本列表包括至少一个邻卫星的基本信息,所述基本信息包括以下至少一项:
第一邻星星历,用于表示邻星相对本星的相对星历;
第一邻星健康状态指示,用于指示邻星与本星的健康状态是否相同;
第一邻星极化配置,用于指示邻星与本星的极化配置是否相同;
第一邻星频率配置。
可选地,所述详细列表包括至少一个邻卫星的详细信息,所述详细信息包括以下至少一项:
邻星ID;
第二邻星星历,用于指示邻星运行轨迹;
邻星波束配置,用于指示邻星波束配置及波束可用性;
第二邻星频率配置,用于指示邻星工作频率;
第二邻星极化配置,用于表示每个波束的极化状态;
第二邻星健康状态指示,用于指示邻星的可用状态。
可选地,所述第一收发机,还用于从所述终端接收第一请求消息,所述第一请求消息用于请求邻卫星的详细信息;
所述第一处理器,进一步用于根据所述第一请求消息,确定详细列表的信息范围。
第四方面,本公开实施例提供一种终端,包括:第二收发机和第二处理器;
所述第二收发机,用于从网络设备接收基本列表和/或详细列表,所述基本列表包括邻卫星的基本信息,所述详细列表包括邻卫星的详细信息;
所述第二处理器,用于根据所述基本列表和/或详细列表,进行小区选择或切换。
可选地,所述第二收发机,进一步用于通过广播消息从所述网络设备接收所述基本列表。
可选地,所述第二收发机,进一步用于通过第一信令从所述网络设备接收所述详细列表。
可选地,所述第一信令包括以下至少一项:
RRC信息、DCI、MAC CE。
可选地,所述基本列表包括至少一个邻卫星的基本信息,所述基本信息包括以下至少一项:
第一邻星星历,用于表示邻星相对本星的相对星历;
第一邻星健康状态指示,用于指示邻星与本星的健康状态是否相同;
第一邻星极化配置,用于指示邻星与本星的极化配置是否相同;
第一邻星频率配置。
可选地,所述详细列表包括至少一个邻卫星的详细信息,所述详细信息包括以下至少一项:
邻星ID;
第二邻星星历,用于指示邻星运行轨迹;
邻星波束配置,用于指示邻星波束配置及波束可用性;
第二邻星频率配置,用于指示邻星工作频率;
第二邻星极化配置,用于表示每个波束的极化状态;
第二邻星健康状态指示,用于指示邻星的可用状态。
可选地,所述第二收发机,还用于向所述网络设备发送第一请求消息,所述第一请求消息用于请求邻卫星的详细信息。
第五方面,本公开实施例提供一种网络设备,包括:
获取模块,用于获取当前卫星小区和邻卫星小区的卫星参数,所述当前卫星小区为终端所在的卫星小区,所述邻卫星小区为与所述当前卫星小区相邻的卫星小区;
确定模块,用于根据所述当前卫星小区和邻卫星小区的卫星参数,确定基本列表和详细列表,所述基本列表包括邻卫星的基本信息,所述详细列表包括所述邻卫星的详细信息;
第一发送模块,用于向终端发送所述基本列表和/或所述详细列表。
可选地,所述邻卫星小区包括以下至少一项:
与所述当前卫星小区相邻的所有卫星小区;
与所述当前卫星小区相邻、运动方向一致,且位于所述当前卫星小区后方的卫星小区;
与所述当前卫星小区相邻、位于同一轨道面、运动方向一致、且位于所述当前卫星小区后方的卫星小区。
可选地,所述第一发送模块,进一步用通过广播消息发送所述基本列表。
可选地,所述第一发送模块,进一步用于通过第一信令向所述终端发送所述详细列表。
可选地,所述第一信令包括以下至少一项:
RRC信息、DCI、MAC CE。
可选地,所述基本列表包括至少一个邻卫星的基本信息,所述基本信息包括以下至少一项:
第一邻星星历,用于表示邻星相对本星的相对星历;
第一邻星健康状态指示,用于指示邻星与本星的健康状态是否相同;
第一邻星极化配置,用于指示邻星与本星的极化配置是否相同;
第一邻星频率配置。
可选地,所述详细列表包括至少一个邻卫星的详细信息,所述详细信息包括以下至少一项:
邻星ID;
第二邻星星历,用于指示邻星运行轨迹;
邻星波束配置,用于指示邻星波束配置及波束可用性;
第二邻星频率配置,用于指示邻星工作频率;
第二邻星极化配置,用于表示每个波束的极化状态;
第二邻星健康状态指示,用于指示邻星的可用状态。
可选地,所述网络设备还包括:
第二接收模块,用于从所述终端接收第一请求消息,所述第一请求消息用于请求邻卫星的详细信息;
所述确定模块,进一步用于根据所述第一请求消息,确定详细列表的信息范围。
第六方面,本公开实施例提供一种终端,包括:
第一接收模块,用于从网络设备接收基本列表和/或详细列表,所述基本列表包括邻卫星的基本信息,所述详细列表包括邻卫星的详细信息;
处理模块,用于根据所述基本列表和/或详细列表,进行小区选择或切换。
可选地,所述第一接收模块,进一步用于通过广播消息从所述网络设备接收所述基本列表。
可选地,所述第一接收模块,进一步用于通过第一信令从所述网络设备接收所述详细列表。
可选地,所述第一信令包括以下至少一项:
RRC信息、DCI、MAC CE。
可选地,所述基本列表包括至少一个邻卫星的基本信息,所述基本信息包括以下至少一项:
第一邻星星历,用于表示邻星相对本星的相对星历;
第一邻星健康状态指示,用于指示邻星与本星的健康状态是否相同;
第一邻星极化配置,用于指示邻星与本星的极化配置是否相同;
第一邻星频率配置。
可选地,所述详细列表包括至少一个邻卫星的详细信息,所述详细信息包括以下至少一项:
邻星ID;
第二邻星星历,用于指示邻星运行轨迹;
邻星波束配置,用于指示邻星波束配置及波束可用性;
第二邻星频率配置,用于指示邻星工作频率;
第二邻星极化配置,用于表示每个波束的极化状态;
第二邻星健康状态指示,用于指示邻星的可用状态。
可选地,所述终端还包括:
第二发送模块,用于向所述网络设备发送第一请求消息,所述第一请求消息用于请求邻卫星的详细信息。
第七方面,本公开实施例提供一种通信设备,包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序,所述程序被所述处理器执行时实现如第一方面所述的指示方法的操作。
第八方面,本公开实施例提供一种终端,包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序,所述程序被所述处理器执行时实现如第二方面所述的指示方法的操作。
第九方面,本公开实施例提供一种处理器可读存储介质,所述计算机可读存储介质上存储程序,所述程序被处理器执行时实现如第一方面所述的指示方法的操作,或者,如第二方面所述的指示方法的操作。
本公开实施例中,网络设备基于终端所在的当前卫星小区,以及与当前卫星小区相邻的邻卫星小区的卫星参数,确定包括邻卫星的基本信息的基本列表和包括邻卫星的详细信息的详细列表,终端根据基本列表和/或详细列表进行小区选择或切换,这样通过邻卫星列表携带的星历信息及时性、有效性更强,可以降低终端本地装订星历的长期误差,使配置参数更加准确,保证系统能够正常使用。
附图说明
为了更清楚地说明本公开实施例的技术方案,下面将对本公开实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本公开的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本公开实施例提供的通信系统架构示意图;
图2为本公开实施例提供的指示方法的流程示意图之一;
图3为本公开实施例提供的应用场景示意图;
图4为本公开实施例提供的指示方法的流程示意图之二;
图5为本公开实施例提供的网络设备的结构示意图之一;
图6为本公开实施例提供的终端的结构示意图之一;
图7为本公开实施例提供的网络设备的结构示意图之二;
图8为本公开实施例提供的终端的结构示意图之二;
图9为本公开实施例提供的网络设备的结构示意图;
图10为本公开实施例提供的终端的结构示意图。
具体实施方式
下面将结合本公开实施例中的附图,对本公开实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本公开一部分实施例,而不是全部的实施例。基于本公开中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本公开保护的范围。
在本公开实施例中,“示例性的”或者“例如”等词用于表示作例子、例证或说明。本公开实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更可选或更具优势。确切而言,使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
本文中,诸如“第一”和“第二”等之类的关系术语仅仅用来将相同名称区分开来,而不是暗示这些名称之间的关系或者顺序。
本文所描述的技术不限于第五代移动通信(5th-generation,5G)系统以及后续演进通信系统,以及不限于LTE/LTE的演进(LTE-Advanced,LTE-A)系统,并且也可用于各种无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access,SC-FDMA)和其他系统。
术语“系统”和“网络”常被可互换地使用。CDMA系统可实现诸如CDMA2000、通用地面无线电接入(Universal Terrestrial Radio Access,UTRA)等无线电技术。UTRA包括宽带CDMA(Wideband Code Division Multiple Access,WCDMA)和其他CDMA变体。TDMA系统可实现诸如全球移动通信系统(Global System for Mobile Communication,GSM)之类的无线电技术。OFDMA系统可实现诸如超移动宽带(Ultra Mobile Broadband,UMB)、演进型 UTRA((Evolution-UTRA,E-UTRA))、IEEE 802.11((Wi-Fi))、IEEE 802.16((WiMAX))、IEEE 802.20、Flash-OFDM等无线电技术。UTRA和E-UTRA是通用移动电信系统(Universal Mobile Telecommunications System,UMTS)的部分。LTE和更高级的LTE(如LTE-A)是使用E-UTRA的新UMTS版本。UTRA、E-UTRA、UMTS、LTE、LTE-A以及GSM在来自名为“第三代伙伴项目”(3rd Generation Partnership Project,3GPP)的组织的文献中描述。CDMA2000和UMB在来自名为“第三代伙伴项目2”(3GPP2)的组织的文献中描述。本文所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。
在低轨卫星通信中,终端通过卫星与网络设备进行通信,由于卫星轨道高度低、运行速度快,为了实现全球覆盖,一般需要大量卫星组成星座,由整个星座系统为用户提供服务。以1000km轨道高度卫星为例,地面终端在地面同一位置对卫星的可见时间大约为10分钟,为了维持不中断的接入服务,地面终端需要在不同的卫星间进行快速、频繁的切换。
参见图1,图中示出两个卫星小区覆盖地面终端的场景,包括:第一卫星11、第二卫星12、终端13和网络设备14,该网络设备14可以是信关站或者卫星基站等。需要说明的是,图1中通过实线表示第一卫星11和第二卫星12对应的卫星小区范围;第一卫星11和第二卫星12采用无线通信方式与网络设备14进行通信;终端13和网络设备14之间可以采用有线或无线通信方式,本公开实施例对此不做具体限定。
继续参见图1,图中示出第一卫星11和第二卫星12的运动方向,由于卫星运动,终端13需要在两个卫星对应的卫星小区之间进行切换,相应地,第一卫星11对应的卫星小区为目标小区,第二卫星12对应的卫星小区为源小区。
参见图2,本公开实施例提供一种指示方法,该方法的执行主体为网络设备,该网络设备可以是信关站或者卫星基站等,该方法包括如下步骤:
步骤201:获取当前卫星小区和邻卫星小区的卫星参数;
在本公开实施例中,当前卫星小区为终端所在的卫星小区,邻卫星小区为与当前卫星小区相邻的卫星小区;通过网络设备获取当前卫星,以及与当 前卫星相邻的一个或多个邻卫星的卫星参数。该卫星参数可以包括星历信息、波束配置信息、工作频率、极化配置、卫星健康状态指示等。
参见图3,图中示出一种低轨移动宽带互联网星座系统,假设每个卫星为一个独立小区,多颗卫星相邻覆盖的情况如图3所示,其中终端30在卫星1对应的卫星小区中,即卫星1对应当前卫星小区。
本公开实施例提供三种方式确定邻卫星小区的范围:
方式一:将与当前卫星小区相邻的所有卫星小区均纳入列表;
在本方式中,邻卫星小区包括与当前卫星小区相邻的所有卫星小区,以图3为例,编号2至7的卫星小区均为邻卫星小区,将卫星2至卫星7的信息都纳入邻小区列表中。
方式二:将当前卫星运动方向一致的、处于后方的相邻小区纳入列表;
在本方式中,邻卫星小区包括与当前卫星小区相邻、运动方向一致,且位于当前卫星小区后方的卫星小区,以图3为例,编号3至5的卫星小区均为邻卫星小区,将卫星3至卫星5的信息都纳入邻小区列表中。
方式三:将与当前卫星同一轨道面、运动方向一致的、处于后方的相邻卫星纳入列表;
在本方式中,邻卫星小区包括与当前卫星小区相邻、位于同一轨道面、运动方向一致、且位于当前卫星小区后方的卫星小区,以图3为例,只有编号4的卫星小区均为邻卫星小区,将卫星4的信息纳入邻小区列表中。
步骤202:根据当前卫星小区和邻卫星小区的卫星参数,确定基本列表和详细列表;
在本公开实施例中,网络设备基于获取的卫星参数,制定邻小区列表,包括:基本列表和详细列表,其中基本列表包括邻卫星的基本信息,例如可以包含与当前卫星相邻的一个或几个卫星的星历信息、波束配置信息、工作频率、极化配置、卫星健康状态指示等:详细列表包括邻卫星的详细信息,该列表内容可以灵活按需配置,包括支持多个相邻卫星、多种参数信息等,数量可灵活扩展。
在一些实施方式中,基本列表可以仅包含同一轨道面的邻卫星的参数,该基本列表包括至少一个邻卫星的基本信息,该基本信息包括以下至少一项:
第一邻星星历,用于表示邻星相对本星的相对星历;
第一邻星健康状态指示,用于指示邻星与本星的健康状态是否相同,可选地,与本星相同为“1”,不同为“0”;
第一邻星极化配置,用于指示邻星与本星的极化配置是否相同,可选地,与本星相同为“1”,不同为“0”;
第一邻星频率配置,可选地,在频率四色复用情况下,用2bit表示。
在一些实施方式中,详细列表包括至少一个邻卫星的详细信息,该详细信息包括以下至少一项:
邻星身份标识(identity,ID),该邻星ID用于区分卫星;
第二邻星星历,用于指示邻星运行轨迹;
邻星波束配置,用于指示邻星波束配置及波束可用性;
第二邻星频率配置,用于指示邻星工作频率,支持按照波束配置工作频率;
第二邻星极化配置,用于表示每个波束的极化状态,可选地,“0”表示左旋圆极化,“1”表示右旋圆极化;
第二邻星健康状态指示,用于指示邻星的可用状态,可选地,通过1b it指示,“0”表示邻星不可用,“1”表示邻星正常工作。
步骤203:向终端发送基本列表和/或详细列表;
在本公开实施例中,网络设备可以选择将基本列表发送给终端,也可以选择将详细列表发送给终端,还可以选择将基本列表和详细列表都发送给终端。
具体地,网络设备通过广播消息发送基本列表,该基本列表的发送周期可以是80ms、160ms等,可根据系统方案设置。
具体地,网络设备通过第一信令向终端发送详细列表,即通过专用信令发送详细列表,该第一信令包括以下至少一项:无线资源控制(Radio Resource Control,RRC)信息、下行控制信息(Downlink Control Information,DCI)、媒体接入控制层控制单元(Media Access Control Element,MAC CE)。
进一步地,在确定详细列表之前,网络设备从终端接收第一请求消息,例如RRC请求消息,该第一请求消息用于请求邻卫星的详细信息。相应地, 网络设备根据第一请求消息,确定详细列表的信息范围,从而实现根据终端需求灵活配置详细列表的内容,同时邻卫星的数量也可以根据终端请求来扩展,最大支持全网的小区参数的传输。
本公开实施例中,通过设计包含卫星的星历信息、波束配置信息、工作频率、极化配置、卫星健康状态指示等内容的邻小区列表信息,分为基本列表和详细列表,通过网络周期广播基本列表和专用信令传输详细列表的方式,为终端指示相关信息,一方面通过邻小区列表携带的星历信息及时性、有效性更强,可以降低终端本地装订星历的长期误差;另一方面,终端可以根据需要选择以广播消息或RRC请求或两种同时的方式获得邻小区列表,增加了系统使用的灵活性。
参见图4,本公开实施例提供一种指示方法,该方法的执行主体为网终端,该方法包括如下步骤:
步骤401:从网络设备接收基本列表和/或详细列表;
在本公开实施例中,终端从网络设备接收邻小区列表,包括:基本列表和详细列表,其中基本列表包括邻卫星的基本信息,例如可以包含与当前卫星相邻的一个或几个卫星的星历信息、波束配置信息、工作频率、极化配置、卫星健康状态指示等:详细列表包括邻卫星的详细信息,该列表内容可以灵活按需配置,包括支持多个相邻卫星、多种参数信息等,数量可灵活扩展。
在一些实施方式中,基本列表可以仅包含同一轨道面的邻卫星的参数,该基本列表包括至少一个邻卫星的基本信息,该基本信息包括以下至少一项:
第一邻星星历,用于表示邻星相对本星的相对星历;
第一邻星健康状态指示,用于指示邻星与本星的健康状态是否相同,可选地,与本星相同为“1”,不同为“0”;
第一邻星极化配置,用于指示邻星与本星的极化配置是否相同,可选地,与本星相同为“1”,不同为“0”;
第一邻星频率配置,可选地,在频率四色复用情况下,用2bit表示。
在一些实施方式中,详细列表包括至少一个邻卫星的详细信息,该详细信息包括以下至少一项:
邻星身份标识(identity,ID),该邻星ID用于区分卫星;
第二邻星星历,用于指示邻星运行轨迹;
邻星波束配置,用于指示邻星波束配置及波束可用性;
第二邻星频率配置,用于指示邻星工作频率,支持按照波束配置工作频率;
第二邻星极化配置,用于表示每个波束的极化状态,可选地,“0”表示左旋圆极化,“1”表示右旋圆极化;
第二邻星健康状态指示,用于指示邻星的可用状态,可选地,通过1bit指示,“0”表示邻星不可用,“1”表示邻星正常工作。
具体地,终端通过广播消息从网络设备接收基本列表,该基本列表的发送周期可以是80ms、160ms等,可根据系统方案设置。
具体地,终端通过第一信令从网络设备接收详细列表,即通过专用信令接收详细列表,该第一信令包括以下至少一项:RRC信息、DCI、MAC CE。
进一步地,在终端通过第一信令从网络设备接收详细列表之前,向网络设备发送第一请求消息,例如RRC请求消息,该第一请求消息用于请求邻卫星的详细信息。相应地,网络设备根据第一请求消息,确定详细列表的信息范围,从而实现根据终端需求灵活配置详细列表的内容,同时邻卫星的数量也可以根据终端用户请求来扩展,最大支持全网的小区参数的传输。
这样,终端可以从网络侧的广播消息中获得基本列表及参数,也可以通过RRC请求向网络侧获得详细列表及参数;终端可以灵活选择具体采用哪种方式获得邻小区列表及参数。
步骤402:根据基本列表和/或详细列表,进行小区选择或切换;
在本公开实施例中,终端利用基本列表和/或详细列表中的参数进行小区选择或切换。例如:终端利用接收到的邻小区列表及参数在空闲状态下的小区选择和重选,以及终端激活态下的小区切换等方面。具体地,终端从网络设备获得邻小区列表及信息后,终端根据当前地理位置、运动状态和邻小区星历信息推算出终端将要进入新小区的时间、方位等,指导终端配置相关参数,准备进入新小区。
本公开实施例中,通过设计包含卫星的星历信息、波束配置信息、工作频率、极化配置、卫星健康状态指示等内容的邻小区列表信息,分为基本列 表和详细列表,通过网络周期广播基本列表和专用信令传输详细列表的方式,为终端指示相关信息,一方面通过邻小区列表携带的星历信息及时性、有效性更强,可以降低终端本地装订星历的长期误差;另一方面,终端可以根据需要选择以广播消息或RRC请求或两种同时的方式获得邻小区列表,增加了系统使用的灵活性。
参见图5,本公开实施例提供一种网络设备500,包括:第一收发机501和第一处理器502;
所述第一收发机501,用于获取当前卫星小区和邻卫星小区的卫星参数,所述当前卫星小区为终端所在的卫星小区,所述邻卫星小区为与所述当前卫星小区相邻的卫星小区;
所述第一处理器502,用于根据所述当前卫星小区和邻卫星小区的卫星参数,确定基本列表和详细列表,所述基本列表包括邻卫星的基本信息,所述详细列表包括所述邻卫星的详细信息;
所述第一收发机501,还用于向终端发送所述基本列表和/或所述详细列表。
可选地,所述邻卫星小区包括以下至少一项:
与所述当前卫星小区相邻的所有卫星小区;
与所述当前卫星小区相邻、运动方向一致,且位于所述当前卫星小区后方的卫星小区;
与所述当前卫星小区相邻、位于同一轨道面、运动方向一致、且位于所述当前卫星小区后方的卫星小区。
可选地,所述第一收发机501,进一步用于通过广播消息向所述终端发送所述基本列表。
可选地,所述第一收发机501,进一步用于通过第一信令向所述终端发送所述详细列表。
可选地,所述第一信令包括以下至少一项:
RRC信息、DCI、MAC CE。
可选地,所述基本列表包括至少一个邻卫星的基本信息,所述基本信息包括以下至少一项:
第一邻星星历,用于表示邻星相对本星的相对星历;
第一邻星健康状态指示,用于指示邻星与本星的健康状态是否相同;
第一邻星极化配置,用于指示邻星与本星的极化配置是否相同;
第一邻星频率配置。
可选地,所述详细列表包括至少一个邻卫星的详细信息,所述详细信息包括以下至少一项:
邻星ID;
第二邻星星历,用于指示邻星运行轨迹;
邻星波束配置,用于指示邻星波束配置及波束可用性;
第二邻星频率配置,用于指示邻星工作频率;
第二邻星极化配置,用于表示每个波束的极化状态;
第二邻星健康状态指示,用于指示邻星的可用状态。
可选地,所述第一收发机501,还用于从所述终端接收第一请求消息,所述第一请求消息用于请求邻卫星的详细信息;
所述第一处理器502,进一步用于根据所述第一请求消息,确定详细列表的信息范围。
本公开实施例中,通过设计包含卫星的星历信息、波束配置信息、工作频率、极化配置、卫星健康状态指示等内容的邻小区列表信息,分为基本列表和详细列表,通过网络周期广播基本列表和专用信令传输详细列表的方式,为终端指示相关信息,一方面通过邻小区列表携带的星历信息及时性、有效性更强,可以降低终端本地装订星历的长期误差;另一方面,终端可以根据需要选择以广播消息或RRC请求或两种同时的方式获得邻小区列表,增加了系统使用的灵活性。
参见图6,本公开实施例提供一种终端600,包括:第二收发机601和第二处理器602;
所述第二收发机601,用于从网络设备接收基本列表和/或详细列表,所述基本列表包括邻卫星的基本信息,所述详细列表包括邻卫星的详细信息;
所述第二处理器602,用于根据所述基本列表和/或详细列表,进行小区选择或切换。
可选地,所述第二收发机601,进一步用于通过广播消息从所述网络设备接收所述基本列表。
可选地,所述第二收发机601,进一步用于通过第一信令从所述网络设备接收所述详细列表。
可选地,所述第一信令包括以下至少一项:
RRC信息、DCI、MAC CE。
可选地,所述基本列表包括至少一个邻卫星的基本信息,所述基本信息包括以下至少一项:
第一邻星星历,用于表示邻星相对本星的相对星历;
第一邻星健康状态指示,用于指示邻星与本星的健康状态是否相同;
第一邻星极化配置,用于指示邻星与本星的极化配置是否相同;
第一邻星频率配置。
可选地,所述详细列表包括至少一个邻卫星的详细信息,所述详细信息包括以下至少一项:
邻星ID;
第二邻星星历,用于指示邻星运行轨迹;
邻星波束配置,用于指示邻星波束配置及波束可用性;
第二邻星频率配置,用于指示邻星工作频率;
第二邻星极化配置,用于表示每个波束的极化状态;
第二邻星健康状态指示,用于指示邻星的可用状态。
可选地,所述第二收发机601,还用于向所述网络设备发送第一请求消息,所述第一请求消息用于请求邻卫星的详细信息。
本公开实施例中,通过设计包含卫星的星历信息、波束配置信息、工作频率、极化配置、卫星健康状态指示等内容的邻小区列表信息,分为基本列表和详细列表,通过网络周期广播基本列表和专用信令传输详细列表的方式,为终端指示相关信息,一方面通过邻小区列表携带的星历信息及时性、有效性更强,可以降低终端本地装订星历的长期误差;另一方面,终端可以根据需要选择以广播消息或RRC请求或两种同时的方式获得邻小区列表,增加了系统使用的灵活性。
参见图7,本公开实施例提供一种网络设备700,包括:
获取模块701,用于获取当前卫星小区和邻卫星小区的卫星参数,所述当前卫星小区为终端所在的卫星小区,所述邻卫星小区为与所述当前卫星小区相邻的卫星小区;
确定模块702,用于根据所述当前卫星小区和邻卫星小区的卫星参数,确定基本列表和详细列表,所述基本列表包括邻卫星的基本信息,所述详细列表包括所述邻卫星的详细信息;
第一发送模块703,用于向终端发送所述基本列表和/或所述详细列表。
可选地,所述邻卫星小区包括以下至少一项:
与所述当前卫星小区相邻的所有卫星小区;
与所述当前卫星小区相邻、运动方向一致,且位于所述当前卫星小区后方的卫星小区;
与所述当前卫星小区相邻、位于同一轨道面、运动方向一致、且位于所述当前卫星小区后方的卫星小区。
可选地,所述第一发送模块,进一步用通过广播消息向所述终端发送所述基本列表。
可选地,所述第一发送模块,进一步用于通过第一信令向所述终端发送所述详细列表。
可选地,所述第一信令包括以下至少一项:
RRC信息、DCI、MAC CE。
可选地,所述基本列表包括至少一个邻卫星的基本信息,所述基本信息包括以下至少一项:
第一邻星星历,用于表示邻星相对本星的相对星历;
第一邻星健康状态指示,用于指示邻星与本星的健康状态是否相同;
第一邻星极化配置,用于指示邻星与本星的极化配置是否相同;
第一邻星频率配置。
可选地,所述详细列表包括至少一个邻卫星的详细信息,所述详细信息包括以下至少一项:
邻星ID;
第二邻星星历,用于指示邻星运行轨迹;
邻星波束配置,用于指示邻星波束配置及波束可用性;
第二邻星频率配置,用于指示邻星工作频率;
第二邻星极化配置,用于表示每个波束的极化状态;
第二邻星健康状态指示,用于指示邻星的可用状态。
可选地,所述网络设备700还包括:
第二接收模块,用于从所述终端接收第一请求消息,所述第一请求消息用于请求邻卫星的详细信息;
所述确定模块,进一步用于根据所述第一请求消息,确定详细列表的信息范围。
本公开实施例中,通过设计包含卫星的星历信息、波束配置信息、工作频率、极化配置、卫星健康状态指示等内容的邻小区列表信息,分为基本列表和详细列表,通过网络周期广播基本列表和专用信令传输详细列表的方式,为终端指示相关信息,一方面通过邻小区列表携带的星历信息及时性、有效性更强,可以降低终端本地装订星历的长期误差;另一方面,终端可以根据需要选择以广播消息或RRC请求或两种同时的方式获得邻小区列表,增加了系统使用的灵活性。
参见图8,本公开实施例提供一种终端800,包括:
第一接收模块801,用于从网络设备接收基本列表和/或详细列表,所述基本列表包括邻卫星的基本信息,所述详细列表包括邻卫星的详细信息;
处理模块802,用于根据所述基本列表和/或详细列表,进行小区选择或切换。
可选地,所述第一接收模块,进一步用于通过广播消息从所述网络设备接收所述基本列表。
可选地,所述第一接收模块,进一步用于通过第一信令从所述网络设备接收所述详细列表。
可选地,所述第一信令包括以下至少一项:
RRC信息、DCI、MAC CE。
可选地,所述基本列表包括至少一个邻卫星的基本信息,所述基本信息 包括以下至少一项:
第一邻星星历,用于表示邻星相对本星的相对星历;
第一邻星健康状态指示,用于指示邻星与本星的健康状态是否相同;
第一邻星极化配置,用于指示邻星与本星的极化配置是否相同;
第一邻星频率配置。
可选地,所述详细列表包括至少一个邻卫星的详细信息,所述详细信息包括以下至少一项:
邻星ID;
第二邻星星历,用于指示邻星运行轨迹;
邻星波束配置,用于指示邻星波束配置及波束可用性;
第二邻星频率配置,用于指示邻星工作频率;
第二邻星极化配置,用于表示每个波束的极化状态;
第二邻星健康状态指示,用于指示邻星的可用状态。
可选地,所述终端800还包括:
第二发送模块,用于向所述网络设备发送第一请求消息,所述第一请求消息用于请求邻卫星的详细信息。
本公开实施例中,通过设计包含卫星的星历信息、波束配置信息、工作频率、极化配置、卫星健康状态指示等内容的邻小区列表信息,分为基本列表和详细列表,通过网络周期广播基本列表和专用信令传输详细列表的方式,为终端指示相关信息,一方面通过邻小区列表携带的星历信息及时性、有效性更强,可以降低终端本地装订星历的长期误差;另一方面,终端可以根据需要选择以广播消息或RRC请求或两种同时的方式获得邻小区列表,增加了系统使用的灵活性。
参见图9,本公开实施例提供一种网络设备900,包括:处理器901、收发机902、存储器903和总线接口。
其中,处理器901可以负责管理总线架构和通常的处理。存储器903可以存储处理器901在执行操作时所使用的数据。
本公开实施例中,网络设备900还可以包括:存储在存储器903上并可在处理器901上运行的程序,该程序被处理器901执行时实现本公开实施例提供 的方法的操作。
在图9中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器901代表的一个或多个处理器和存储器903代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本公开实施例不再对其进行进一步描述。总线接口提供接口。收发机902可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。
参见图10,本公开实施例提供一种终端1000,包括:处理器1001、收发机1002、存储器1003和总线接口。
其中,处理器1001可以负责管理总线架构和通常的处理。存储器1003可以存储处理器1001在执行操作时所使用的数据。
本公开实施例中,终端1000还可以包括:存储在存储器1003上并可在处理器1001上运行的程序,该程序被处理器1001执行时实现本公开实施例提供的方法的步骤。
在图10中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器1001代表的一个或多个处理器和存储器1003代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本公开实施例不再对其进行进一步描述。总线接口提供接口。收发机1002可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。
本公开实施例还提供一种处理器可读存储介质,处理器可读存储介质上存储有程序,该程序被处理器执行时实现上述方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。其中,所述的计算机可读存储介质,如只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等。
需要说明的是,应理解以上网络设备和终端的各个模块的划分仅仅是一种逻辑功能的划分,实际实现时可以全部或部分集成到一个物理实体上,也可以物理上分开。且这些模块可以全部以软件通过处理元件调用的形式实现; 也可以全部以硬件的形式实现;还可以部分模块通过处理元件调用软件的形式实现,部分模块通过硬件的形式实现。例如,确定模块可以为单独设立的处理元件,也可以集成在上述装置的某一个芯片中实现,此外,也可以以程序代码的形式存储于上述装置的存储器中,由上述装置的某一个处理元件调用并执行以上确定模块的功能。其它模块的实现与之类似。此外这些模块全部或部分可以集成在一起,也可以独立实现。这里所述的处理元件可以是一种集成电路,具有信号的处理能力。在实现过程中,上述方法的各步骤或以上各个模块可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。
例如,各个模块、单元、子单元或子模块可以是被配置成实施以上方法的一个或多个集成电路,例如:一个或多个特定集成电路(Application Specific Integrated Circuit,ASIC),或,一个或多个微处理器(digital signal processor,DSP),或,一个或者多个现场可编程门阵列(Field Programmable Gate Array,FPGA)等。再如,当以上某个模块通过处理元件调度程序代码的形式实现时,该处理元件可以是通用处理器,例如中央处理器(Central Processing Unit,CPU)或其它可以调用程序代码的处理器。再如,这些模块可以集成在一起,以片上系统(system-on-a-chip,SOC)的形式实现。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便这里描述的本申请的实施例,例如除了在这里图示或描述的那些以外的顺序实施。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。此外,说明书以及权利要求中使用“和/或”表示所连接对象的至少其中之一,例如A和/或B和/或C,表示包含单独A,单独B,单独C,以及A和B都存在,B和C都存在,A和C都存在,以及A、B和C都存在的7种情况。类似地,本说明书以及权利要求中使用“A和B中的至少一 个”应理解为“单独A,单独B,或A和B都存在”。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
以上所述,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,任何在本申请揭露的技术范围内的变化或替换,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所述权利要求的保护范围为准。

Claims (20)

  1. 一种指示方法,应用于网络设备,包括:
    获取当前卫星小区和邻卫星小区的卫星参数,所述当前卫星小区为终端所在的卫星小区,所述邻卫星小区为与所述当前卫星小区相邻的卫星小区;
    根据所述当前卫星小区和邻卫星小区的卫星参数,确定基本列表和详细列表,所述基本列表包括邻卫星的基本信息,所述详细列表包括所述邻卫星的详细信息;
    向终端发送所述基本列表和/或所述详细列表。
  2. 根据权利要求1所述的方法,其中,所述邻卫星小区包括以下至少一项:
    与所述当前卫星小区相邻的所有卫星小区;
    与所述当前卫星小区相邻、运动方向一致,且位于所述当前卫星小区后方的卫星小区;
    与所述当前卫星小区相邻、位于同一轨道面、运动方向一致、且位于所述当前卫星小区后方的卫星小区。
  3. 根据权利要求1所述的方法,其中,所述向终端发送所述基本列表,包括:
    通过广播消息发送所述基本列表。
  4. 根据权利要求1所述的方法,其中,所述向终端发送所述详细列表,包括:
    通过第一信令向所述终端发送所述详细列表。
  5. 根据权利要求4所述的方法,其中,所述第一信令包括以下至少一项:
    无线资源控制RRC信息、下行控制信息DCI、媒体接入控制层控制单元MAC CE。
  6. 根据权利要求3所述的方法,其中,所述基本列表包括至少一个邻卫星的基本信息,所述基本信息包括以下至少一项:
    第一邻星星历,用于表示邻星相对本星的相对星历;
    第一邻星健康状态指示,用于指示邻星与本星的健康状态是否相同;
    第一邻星极化配置,用于指示邻星与本星的极化配置是否相同;
    第一邻星频率配置。
  7. 根据权利要求4所述的方法,其中,所述详细列表包括至少一个邻卫星的详细信息,所述详细信息包括以下至少一项:
    邻星身份标识ID;
    第二邻星星历,用于指示邻星运行轨迹;
    邻星波束配置,用于指示邻星波束配置及波束可用性;
    第二邻星频率配置,用于指示邻星工作频率;
    第二邻星极化配置,用于表示每个波束的极化状态;
    第二邻星健康状态指示,用于指示邻星的可用状态。
  8. 根据权利要求7所述的方法,其中,
    在所述确定详细列表之前,所述方法还包括:
    从所述终端接收第一请求消息,所述第一请求消息用于请求所述邻卫星的详细信息;
    所述确定详细列表,包括:
    根据所述第一请求消息,确定所述详细列表的信息范围。
  9. 一种指示方法,应用于终端,包括:
    从网络设备接收基本列表和/或详细列表,所述基本列表包括邻卫星的基本信息,所述详细列表包括所述邻卫星的详细信息;
    根据所述基本列表和/或详细列表,进行小区选择或切换。
  10. 根据权利要求9所述的方法,其中,所述从网络设备接收基本列表,包括:
    通过广播消息从所述网络设备接收所述基本列表。
  11. 根据权利要求9所述的方法,其中,所述从网络设备接收详细列表,包括:
    通过第一信令从所述网络设备接收所述详细列表。
  12. 根据权利要求11所述的方法,其中,所述第一信令包括以下至少一项:
    RRC信息、DCI、MAC CE。
  13. 根据权利要求10所述的方法,其中,所述基本列表包括至少一个邻卫星的基本信息,所述基本信息包括以下至少一项:
    第一邻星星历,用于表示邻星相对本星的相对星历;
    第一邻星健康状态指示,用于指示邻星与本星的健康状态是否相同;
    第一邻星极化配置,用于指示邻星与本星的极化配置是否相同;
    第一邻星频率配置。
  14. 根据权利要求11所述的方法,其中,所述详细列表包括至少一个邻卫星的详细信息,所述详细信息包括以下至少一项:
    邻星ID;
    第二邻星星历,用于指示邻星运行轨迹;
    邻星波束配置,用于指示邻星波束配置及波束可用性;
    第二邻星频率配置,用于指示邻星工作频率;
    第二邻星极化配置,用于表示每个波束的极化状态;
    第二邻星健康状态指示,用于指示邻星的可用状态。
  15. 根据权利要求14所述的方法,其中,在所述通过第一信令从所述网络设备接收所述详细列表之前,所述方法还包括:
    向所述网络设备发送第一请求消息,所述第一请求消息用于请求所述邻卫星的详细信息。
  16. 一种网络设备,包括:
    获取模块,用于获取当前卫星小区和邻卫星小区的卫星参数,所述当前卫星小区为终端所在的卫星小区,所述邻卫星小区为与所述当前卫星小区相邻的卫星小区;
    确定模块,用于根据所述当前卫星小区和邻卫星小区的卫星参数,确定基本列表和详细列表,所述基本列表包括邻卫星的基本信息,所述详细列表包括所述邻卫星的详细信息;
    第一发送模块,用于向终端发送所述基本列表和/或所述详细列表。
  17. 一种终端,包括:
    第一接收模块,用于从网络设备接收基本列表和/或详细列表,所述基本列表包括邻卫星的基本信息,所述详细列表包括邻卫星的详细信息;
    处理模块,用于根据所述基本列表和/或详细列表,进行小区选择或切换。
  18. 一种网络设备,包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序,所述程序被所述处理器执行时实现如权利要求1至8中任一项所述的指示方法的操作。
  19. 一种终端,包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序,所述程序被所述处理器执行时实现如权利要求9至15中任一项所述的指示方法的操作。
  20. 一种处理器可读存储介质,其上存储程序,所述程序被处理器执行时实现如权利要求1至8中任一项所述的指示方法的操作,或者,如权利要求9至15中任一项所述的指示方法的操作。
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