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WO2022147664A1 - 接入方法、辅助信息处理方法及装置、设备及存储介质 - Google Patents

接入方法、辅助信息处理方法及装置、设备及存储介质 Download PDF

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Publication number
WO2022147664A1
WO2022147664A1 PCT/CN2021/070359 CN2021070359W WO2022147664A1 WO 2022147664 A1 WO2022147664 A1 WO 2022147664A1 CN 2021070359 W CN2021070359 W CN 2021070359W WO 2022147664 A1 WO2022147664 A1 WO 2022147664A1
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WO
WIPO (PCT)
Prior art keywords
information
access
target satellite
time
coverage area
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Application number
PCT/CN2021/070359
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English (en)
French (fr)
Inventor
熊艺
李小龙
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202180000157.2A priority Critical patent/CN115039354B/zh
Priority to PCT/CN2021/070359 priority patent/WO2022147664A1/zh
Priority to US18/270,930 priority patent/US20240072887A1/en
Publication of WO2022147664A1 publication Critical patent/WO2022147664A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18513—Transmission in a satellite or space-based system
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay

Definitions

  • the present disclosure relates to the technical field of wireless communication, but is not limited to the technical field of wireless communication, and in particular, relates to an access method, an auxiliary information processing method and apparatus, device, and storage medium.
  • Non-terrestrial Networks are introduced in the fifth generation mobile communication (5th Generation, 5G) system.
  • 5G fifth generation mobile communication
  • the NTN network supports two scenarios, Earth fixed cell and Earth moving cell.
  • the fixed cell on the ground based on LEO means that the cell is relative to a certain position on the earth within a certain period of time. stable. This can be achieved by satellites producing steerable beams fixed on the ground.
  • Embodiments of the present disclosure provide an access method, an auxiliary information processing method and apparatus, a device, and a storage medium.
  • a first aspect of the embodiments of the present disclosure provides an access method, which is applied to a user equipment (User Equipment, UE), and the method includes:
  • the time information for accessing the target satellite is determined according to the position information of the UE and the assistance information.
  • a second aspect of the embodiments of the present disclosure provides a method for processing auxiliary information, wherein, applied to the network side, the method includes:
  • the auxiliary information for the UE to access the NTN network is sent, wherein the auxiliary information is used for the UE to determine the time information for accessing the target satellite in the preset cell according to its own location information.
  • a third aspect of the embodiments of the present disclosure provides an access device, which, when applied to a UE, includes:
  • a receiving module configured to receive auxiliary information for the UE to access the NTN network
  • the determining module is configured to determine the time information for accessing the target satellite according to the position information of the UE and the auxiliary information.
  • a fourth aspect of the embodiments of the present disclosure provides an auxiliary information processing apparatus, wherein, applied to the network side, the method includes:
  • the sending module is configured to send auxiliary information for the UE to access the NTN network, wherein the auxiliary information is used for the UE to determine the time information for accessing the target satellite in the preset cell according to its own location information.
  • a fifth aspect of the embodiments of the present disclosure provides a communication device, including a processor, a transceiver, a memory, and an executable program stored on the memory and capable of being run by the processor, wherein the processor runs the executable program When the program executes the method provided in the aforementioned first aspect or the second aspect.
  • a sixth aspect of the embodiments of the present disclosure provides a computer storage medium, where an executable program is stored in the computer storage medium; after the executable program is executed by a processor, the method provided in the foregoing first aspect or the second aspect can be implemented .
  • the UE will receive auxiliary information for accessing the NTN network from the network side of the NTN network, and the auxiliary information may be determined according to the ephemeris information of the target satellite, but does not include the information of the ephemeris information itself .
  • the UE can determine the time information of accessing the target satellite by combining its own location information and auxiliary information without reporting its own location information, thereby reducing the process of the UE performing Service Link Switch (Service Link Switch).
  • Service Link Switch Service Link Switch
  • the transmission of the position information of the UE and the ephemeris information of the target satellite protects the privacy of the position information of the UE and the ephemeris information of the target satellite, and improves the security of the position information of the UE and/or the ephemeris information of the target satellite .
  • FIG. 1 is a schematic structural diagram of a wireless communication system according to an exemplary embodiment
  • FIG. 2A is a schematic structural diagram of an NTN network according to an exemplary embodiment
  • FIG. 2B is a schematic diagram showing a comparison of the signal reception strengths of a TN and an NTN to a near UE and a far UE according to an exemplary embodiment
  • FIG. 3 is a schematic flowchart of an access method according to an exemplary embodiment
  • 4A is a schematic diagram of coverage of a preset cell according to an exemplary embodiment
  • FIG. 4B is a schematic diagram showing coverage of a preset cell according to an exemplary embodiment
  • FIG. 5 is a schematic flowchart of a method for processing auxiliary information according to an exemplary embodiment
  • FIG. 6 is a schematic structural diagram of a UE access apparatus according to an exemplary embodiment
  • FIG. 7 is a schematic structural diagram of an apparatus for processing auxiliary information according to an exemplary embodiment
  • 8A is a schematic diagram showing the transformation of a coverage area of a target satellite according to an exemplary embodiment
  • FIG. 8B is an enlarged schematic view of the overlay schematic diagram at a moment in FIG. 8A;
  • FIG. 8C is an enlarged schematic view of the overlay schematic diagram at a moment in FIG. 8B;
  • FIG. 9 is a schematic structural diagram of a UE according to an exemplary embodiment.
  • Fig. 10 is a schematic structural diagram of a base station according to an exemplary embodiment.
  • first, second, third, etc. may be used in embodiments of the present disclosure to describe various pieces of information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.
  • the word "if” as used herein can be interpreted as "at the time of” or "when” or "in response to determining.”
  • FIG. 1 shows a schematic structural diagram of a wireless communication system provided by an embodiment of the present disclosure.
  • the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include: several UEs 11 and several base stations 12 .
  • the UE11 may be a device that provides voice and/or data connectivity to the user.
  • the UE11 may communicate with one or more core networks via a Radio Access Network (RAN), and the UE11 may be an IoT UE, such as a sensor device, a mobile phone (or "cellular" phone) and an IoT-enabled UE.
  • RAN Radio Access Network
  • the UE's computer for example, may be a stationary, portable, pocket-sized, hand-held, computer-built-in, or vehicle-mounted device.
  • a station For example, a station (Station, STA), a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile station), a mobile station (mobile), a remote station (remote station), an access point, a remote UE ( remote terminal), access UE (access terminal), user device (user terminal), user agent (user agent), user equipment (user device), or user UE (user equipment, UE).
  • the UE11 may also be a device of an unmanned aerial vehicle.
  • the UE 11 may also be an in-vehicle device, for example, a trip computer with a wireless communication function, or a wireless communication device connected to an external trip computer.
  • the UE11 may also be a roadside device, for example, may be a streetlight, a signal light, or other roadside device having a wireless communication function.
  • the base station 12 may be a network-side device in a wireless communication system.
  • the wireless communication system may be a fourth generation mobile communication (the 4th generation mobile communication, 4G) system, also known as a long term evolution (Long Term Evolution, LTE) system; or, the wireless communication system may also be a 5G system, Also known as new radio (NR) system or 5G NR system.
  • the wireless communication system may also be a next-generation system of the 5G system.
  • the access network in the 5G system can be called NG-RAN (New Generation-Radio Access Network, a new generation of radio access network).
  • the MTC system may be a network-side device in a wireless communication system.
  • the base station 12 may be an evolved base station (eNB) used in the 4G system.
  • the base station 12 may also be a base station (gNB) that adopts a centralized distributed architecture in a 5G system.
  • eNB evolved base station
  • gNB base station
  • the base station 12 adopts a centralized distributed architecture it usually includes a centralized unit (central unit, CU) and at least two distributed units (distributed unit, DU).
  • the centralized unit is provided with a protocol stack of a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control Protocol (Radio Link Control, RLC) layer, and a Media Access Control (Media Access Control, MAC) layer; distribution A physical (Physical, PHY) layer protocol stack is set in the unit, and the specific implementation manner of the base station 12 is not limited in this embodiment of the present disclosure.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control Protocol
  • MAC Media Access Control
  • distribution A physical (Physical, PHY) layer protocol stack is set in the unit, and the specific implementation manner of the base station 12 is not limited in this embodiment of the present disclosure.
  • a wireless connection can be established between the base station 12 and the UE 11 through a wireless air interface.
  • the wireless air interface is a wireless air interface based on the fourth generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, such as
  • the wireless air interface is a new air interface; alternatively, the wireless air interface may also be a wireless air interface based on a 5G next-generation mobile communication network technology standard.
  • an E2E (End to End, end-to-end) connection may also be established between UE11.
  • V2V vehicle to vehicle, vehicle-to-vehicle
  • V2I vehicle to Infrastructure, vehicle-to-roadside equipment
  • V2P vehicle to pedestrian, vehicle-to-person communication in vehicle-to-everything (V2X) communication etc. scene.
  • the above wireless communication system may further include a network management device 13 .
  • the network management device 13 may be a core network device in a wireless communication system, for example, the network management device 13 may be a mobility management entity (Mobility Management Entity) in an evolved packet core network (Evolved Packet Core, EPC). MME). Alternatively, the network management device may also be other core network devices, such as a serving gateway (Serving Gate Way, SGW), a public data network gateway (Public Data Network GateWay, PGW), a policy and charging rule functional unit (Policy and Charging Rules Function, PCRF) or Home Subscriber Server (HSS), etc.
  • SGW Serving Gate Way
  • PGW Public Data Network GateWay
  • PCRF Policy and Charging Rules Function
  • HSS Home Subscriber Server
  • the satellite in the communication scenario of a fixed cell on the ground, with the movement of the satellite, the satellite can only serve a certain fixed area on the ground for a period of time. Handover of service links, access to new satellites. As shown in FIG. 2A , assuming that both satellite 1 and satellite 2 move in the same direction, satellite 1 and satellite 2 are switched during the process of covering the cells PCI1 and PCI2.
  • the UE can use the reference signal received power (Reference Signal Received Power, PSPR) or reference signal received quality (Reference Signal Received Quality) at the cell center and the cell edge. RSPQ) to determine whether the UE is near the cell edge. It can be seen that the received signal strength of the signal transmitted by the ground base station (gNB) to the near UE and the far UE is significantly attenuated from the center of the cell to the edge of the cell.
  • PSPR Reference Signal Received Power
  • RSPQ Reference Signal Received Quality
  • the cell radius is large, and the UE is in the center or edge of the cell (ie, near UE and far UE), the RSRP/RSRQ difference is small, and the far-near effect is not obvious. Therefore, the triggering of handover based on signal strength in the TN network is not applicable to the NTN network.
  • a location-based condition-based handover (Conditional Handover, CHO) trigger event and a time/timer-based trigger event are introduced into the NTN network.
  • the UE When a time/timer-based CHO trigger event is used in Service Link Switch, the UE needs to report its own location, and the network configures the CHO trigger time/timer duration according to the location information reported by the UE. However, considering the privacy of the UE, it may not be supported for the UE to report its own location information in the NTN.
  • an embodiment of the present disclosure provides an access method, which, when applied to a UE, includes:
  • S110 Receive auxiliary information for the UE to access the NTN network
  • S120 Determine time information for accessing the target satellite according to the location information of the UE and the auxiliary information.
  • the assistance information may be determined by the NTN network according to the ephemeris information of the target satellite, but does not directly include the information of the ephemeris information of the target satellite.
  • the UE will receive the assistance information delivered by the NTN network, and the assistance information may be delivered by the current serving satellite of the UE or delivered by the source satellite currently covering the preset cell.
  • the serving satellite may be the satellite currently accessed by the UE.
  • the target satellite may be the next satellite to be accessed by the UE.
  • the serving satellites and/or the target satellites here can all be LEO satellites, but are not limited to LEO satellites.
  • the preset cells may include, but are not limited to, terrestrial fixed cells.
  • the UE after receiving the auxiliary information, determines the time information for accessing the target satellite in combination with its own position information.
  • the time information can be any time information that can be used by the UE to determine when it can access the target satellite, and/or time information that can be used by the UE to determine which time period or how long it can access the target satellite. .
  • the UE can easily determine the access without reporting its own position information and without knowing the ephemeris information of the target satellite. Time information to the target satellite, thereby reducing the leakage of the UE's position information and/or the target satellite's ephemeris information during the transmission process, and improving the information security of the target satellite's ephemeris information and/or the UE's position information.
  • the auxiliary information includes at least one of the following:
  • a cell identifier of a preset cell wherein, the preset cell is: the cell where the UE accesses the target satellite;
  • the access time parameter indicates the time parameter for the UE to access the target satellite in the preset cell
  • the duration information of the public duration includes: the duration from the preset time to the predicted time when the target satellite passes through the first reference position of the preset cell;
  • the reference point information is the position information of the second reference position of the preset cell.
  • the preset cell may be: a cell where the UE is currently located and/or a cell where the UE is predicted to access the target satellite according to its own movement information.
  • the cell identifier may be a cell ID (Identification, ID).
  • the cell identifier may be a physical cell identifier (Physical Cell ID, PCI) of the preset cell.
  • both the coverage area of the source satellite and the coverage area of the target satellite may be larger than the area of the preset cell.
  • the preset cell is a terrestrial fixed cell (or called a terrestrial stationary cell)
  • the current preset cell is covered by the source satellite.
  • both the source satellite and the target satellite move, and at the moment shown in FIG. 4B , a part of the preset cell is covered by both the source satellite and the target satellite, and another part of the preset cell is only covered by the target satellite.
  • the UE If the UE is located in the preset cell, if the cell identifier of the preset cell remains unchanged, the UE needs to switch the service link from the source satellite to the target satellite, and needs to obtain the time information that the target satellite can access.
  • the preset cell is stationary on the ground, but the cell identifier of the preset cell may also change with the change of the satellite covering the preset cell.
  • the PCI of the preset cell covered by the target satellite is different from that of the source. PCI when the satellite covers the preset cell.
  • the auxiliary information may further include: change information of the coverage area of the target satellite, where the change information reflects the change of the coverage area of the target satellite in the time domain.
  • the change information may be determined according to the ephemeris information of the target satellite, but not the ephemeris information of the target satellite itself.
  • the UE receives the change information at this time, according to the historical access information of the UE accessing the target satellite, combined with the change information and its own location information, when it is located in a coverage area of the target satellite , combined with the historical access information in the coverage area, etc., the access time in the corresponding coverage area of the corresponding target satellite can be determined, and the time information of accessing the target satellite in the preset cell can be determined.
  • the UE may also receive access configuration information from the network side of the NTN network, where the access configuration information may at least indicate the time information for accessing a coverage area of the target satellite in the preset cell, and then The time offset between access to different coverage areas obtained by combining the change information, in this way, the UE can determine the time information for accessing each coverage area of the target satellite within the coverage area.
  • the change information of the coverage area of the target satellite may include: forming a list of area information of the area (ie, the coverage area) that the target satellite can cover within a period.
  • the correspondence information indicates: the correspondence between the coverage area of the target satellite and the time parameter for accessing the target satellite in the corresponding coverage area of the target satellite .
  • the UE can determine which area of the preset cell the UE is in, and/or which area of the preset cell the UE is in, according to the corresponding relationship between the coverage area and the access time parameter and in combination with whether its own location is in the corresponding coverage area.
  • Information such as whether the target satellite can be accessed at the location, and/or when the target satellite can be accessed.
  • the access timer may be: a timer for accessing the target satellite.
  • the auxiliary information further includes: start time information of the access timer. Due to the large coverage area of the satellite cell, the transmission delays of different UEs receiving the same satellite transmission are different. Compared with the UE directly starting the access timer after receiving the auxiliary information or the timing information of the access timer, the access timer is started between different UEs. In the phenomenon that the start time difference of the access timer is formed, the auxiliary information in the embodiment of the present disclosure carries the start time information of the access timer. The start time information indicates the start time of the access timer. In this way, by carrying the start time information, the auxiliary information can realize the consistency of the start times of the access timers started by different UEs.
  • the access timer may be a timer for the UE to determine time information to access the target satellite.
  • the UE may access the target within the running time of the access timer. satellite, or the UE can access the target satellite when the access timer expires.
  • the above is only an example for the access timer to determine the time information for the UE to access the target satellite, and the specific implementation is not limited to this.
  • the correspondence information between the change information and the access time parameter indicates at least one of the following:
  • the area covered by the target satellite during operation is divided into N coverage areas, then the coverage area and access time of the target satellite indicated by the correspondence information between the transformation information and the access time parameter at this time
  • the corresponding relationship may include: the corresponding relationship between the N coverage areas and the access moments corresponding to the N coverage areas respectively.
  • the access time may be an absolute time.
  • the absolute time includes, but is not limited to, the Coordinated Universal Time UTC, or the time in a certain region, such as Beijing time or Tokyo time.
  • the common time period may be: a common time period for all UEs in the preset cell to access the target cell and wait. If the UE waits for a common time, the target satellite may cover the entire preset cell, and all UEs in the preset cell can access the target satellite.
  • the target satellite moves relative to a preset cell on the ground, and UEs located at the edge of the preset cell may actually access the target cell without waiting for a common time period.
  • an access timer is also introduced; the timing duration of the access timer can be determined according to a common duration. Specifically, how to determine according to the public duration may be determined according to an adjustment parameter. The adjustment parameter may be used to adjust the public duration, and the adjustment result may be the timing duration of the access timer.
  • the adjustment parameters include:
  • the offset can be used to perform addition and subtraction operations with the common duration, so as to obtain the timing duration of the access timer corresponding to the location of the UE.
  • the scaling ratio can be used to obtain the timing duration of the access timer corresponding to the location of the UE by multiplying it with the common duration.
  • the common duration the predicted time at which the target satellite passes through the first reference position of the preset cell determined according to the ephemeris information of the target satellite, and the time duration between the preset time.
  • the first reference position here may be any position in the preset cell, for example, the position of the center point of the preset cell, or the position of the point in the preset cell with the smallest current distance from the target satellite.
  • the first reference position here may be any position in a preset preset cell.
  • the reference point position information may be the position of the second reference point in the preset cell, and similarly, the second reference point here may be the cell center point or the edge point at the edge position of the preset cell.
  • the first reference point and the second reference point may be the same or different.
  • the preset moment includes:
  • the current time may be: the current time when the auxiliary information is delivered.
  • the receiving moment of the service link replacement configuration is: the moment when the UE receives the service link replacement configuration.
  • the service link replacement configuration is used to instruct the UE to replace the service link.
  • the serving link is a link between the UE and the serving satellite.
  • the change information of the coverage area of the target satellite includes:
  • the target satellite will pass through and cover area A, area B, area C, and area D in a predetermined period of time in the future.
  • the region information of region A, region B, region C, and region D are sequentially ordered in the time domain to form the sequence.
  • what the UE receives is a sequence composed of area information, and it can know the area that the target satellite will cover in sequence in the future preset duration without knowing the ephemeris information of the target satellite.
  • the satellite passes by it is within the coverage area of the target satellite, and the target satellite can be accessed.
  • the UE can access the cell formed by the target satellite through a cell handover request, or access the target satellite through a service link without switching cells.
  • the area information may be represented as one of the following:
  • the position information of the reference position of the coverage area and the distance information of the reference distance are the position information of the reference position of the coverage area and the distance information of the reference distance.
  • the area information of the coverage area of the target satellite may be various, and the above is only an example, and the specific implementation is not limited to any one of the above examples.
  • the area information of the coverage area of the target satellite is indicated by a polar coordinate system.
  • a coordinate system can also be indicated to describe the area information of the coverage area of the target satellite.
  • the polar angle range may be used to determine.
  • the UE determines whether its location is within the polar angle range corresponding to a certain coverage area configured by the network, and the location of the UE is the same as the pole.
  • the projection of the connecting line segment of the location on the bisector of the angle where the coverage area is located is greater than or equal to the reference distance, to determine that the UE is located in this coverage area, otherwise, it is determined that the UE is not located in this area;
  • the UE determines whether its location is within the polar angle range corresponding to a certain coverage area configured by the network, or the bisector of the angle between the UE location and the pole location at the angle of the coverage area.
  • the projection on is less than or equal to the reference distance, it is determined that the UE is located in this coverage area, otherwise, it is determined that the UE is not located in this coverage area.
  • the latitude and longitude are used to describe the area information of the coverage area of the target satellite.
  • the coordinates of the world coordinate system may be used to indicate the area information of the multiple coverage areas that the target satellite passes through in sequence.
  • the reference position of the coverage area may be any predetermined position, for example, the cell center of the preset cell or any position on the ground. The position information of the sharp turn position and the distance information between the coverage area and the base station position are obtained, so that the UE can also know the area information of the area covered by the target satellite.
  • the pole position includes: a cell center of the preset cell; and/or the axial direction includes: a projection direction of the moving direction of the satellite to the ground.
  • the pole position may also be the edge point in the preset cell that is currently closest to the target satellite or the current farthest point from the target satellite. edge point.
  • the axial direction may also be: the connecting direction of the target satellite pointing to the center of the earth.
  • the reference position includes: the first coverage position of the preset cell by the target satellite;
  • the reference distance includes: the closest distance of the coverage area of the satellite to the reference position, and the farthest distance of the coverage area of the satellite to the reference position.
  • the S120 may include:
  • the assistance information including the correspondence information between the change information and the access time parameter
  • the time information for accessing the target satellite is determined according to the access time parameter, including at least one of the following:
  • the correspondence information indicating: the correspondence between the coverage area of the target satellite and the timing duration of the access timer, determine the target where the UE is located in the preset cell according to the location information of the UE In the coverage area of the satellite, it is determined that an access request to access the target satellite is initiated when the access timer expires;
  • the correspondence information indicating: the correspondence between the coverage area of the target satellite and the adjustment parameter of the access timer, determine the target where the UE is located in the preset cell according to the location information of the UE In the coverage area of the satellite, according to the public duration and the adjustment parameter, determine the timing duration of the access timer, and determine to initiate an access request to access the target satellite when the access timer times out .
  • the corresponding relationship indicated by the corresponding relationship information is different, then the UE determines that it is located in the coverage area of the target satellite and/or is about to be located in the coverage area of the target satellite according to its own position, and can determine different time information according to the corresponding relationship. For example, determine The access time, the timing information of the access timer and/or the adjustment parameter of the time duration of the access timer relative to the public duration, etc., are requested to access the target satellite when the access time is reached or the access timer times out.
  • the S120 may include:
  • the UE In response to the assistance information including the change information of the coverage area of the target satellite, it is determined that the UE is located in the preset cell according to the position information of the UE and the change information of the coverage area of the target satellite In the coverage area of the target satellite, according to the access time offset between the coverage areas of multiple target satellites and the access time of at least one of the coverage areas, determine the access point in the preset cell. Describe the time information of the target satellite;
  • the UE In response to the assistance information including the reference point information, determining that the UE accesses the UE in the preset cell according to the relative position relationship between the UE position information and the reference position indicated by the reference point information Time information of the target satellite.
  • the UE may not report its own position information and/or know the star of the target satellite.
  • the time information of accessing the target satellite in the preset cell In the case of the calendar information, the time information of accessing the target satellite in the preset cell.
  • the time information for accessing the target satellite in the preset cell includes the following:
  • the timer information of the access timer for accessing the target satellite in the preset cell is the timer information of the access timer for accessing the target satellite in the preset cell
  • An adjustment parameter of the timing duration of the access timer for accessing the target satellite in the preset cell relative to the public duration is an adjustment parameter of the timing duration of the access timer for accessing the target satellite in the preset cell relative to the public duration.
  • the absolute time information may directly indicate the access time of accessing the target satellite in the preset cell.
  • the time information may also be timer information of an access timer, where the timer information includes but is not limited to:
  • the time information may also be an adjustment parameter of the access timer relative to the public duration, and the adjustment parameter here may be the aforementioned offset and/or scaling ratio.
  • the S120 may include:
  • the access timer is started according to the start time information of the access timer included in the auxiliary information
  • the target satellite is accessed in the preset cell.
  • the UE may start the access timer immediately after receiving the auxiliary information, or start the access timer according to the start time indicated by the start time information carried in the auxiliary information; or, deliver the access timer on the network side receiving the NTN network
  • the access timer is started when the access configuration is changed or the service link is changed.
  • the UE can access the target satellite in the target cell. access process.
  • the access procedure includes, but is not limited to, two phases: access control and/or random access.
  • the method further includes:
  • the access timer In response to the assistance information not including the start time information of the access timer, when the configuration information of the target satellite is received, the access timer is started.
  • the configuration information here may be one of the foregoing access configuration and/or service link replacement configuration.
  • the S120 may include:
  • the duration of the access timer determined according to the auxiliary information When the access timer expires, it is determined according to the location information of the UE that the UE is located in a preset cell, and the UE is located in the preset cell. Access the target satellite.
  • the absolute time indicated by the absolute time information mentioned in any of the foregoing embodiments includes: Coordinated Universal Time UTC.
  • the receiving assistance information for the UE to access the NTN network includes:
  • a radio resource control RRC message containing the assistance information is received.
  • the assistance information may be a broadcast message for multiple UEs, simultaneously informing multiple UEs of assistance information for accessing the target satellite.
  • the broadcast message may be a message broadcast in a preset cell, and the preset cell may be the current serving cell of the UE.
  • sending the auxiliary information through an RRC message may be to deliver the auxiliary information at UE granularity.
  • the RRC message may be an RRC message that triggers the UE to switch from the current serving link with the serving satellite to the serving link with the target satellite.
  • the auxiliary information can be easily issued without introducing a new message, which has the characteristics of strong compatibility with the prior art.
  • an embodiment of the present disclosure provides a method for processing auxiliary information, wherein, applied to the network side, the method includes:
  • S210 Send auxiliary information for the UE to access the NTN network, where the auxiliary information is used for the UE to determine the time information for accessing the target satellite in the preset cell according to its own location information.
  • the auxiliary information processing method is applied to the network side, and the network side may be the network side of the NTN network.
  • the assistance information processing method is applied to the serving satellite of the UE.
  • the network side delivers assistance information for accessing the NTN network to the UE, where the assistance information is determined according to the ephemeris information of the target satellite, but is not the ephemeris information of the target satellite itself.
  • the auxiliary information can be used for the UE to determine the time information for accessing the target satellite without reporting its own location information.
  • the assistance information may be used by the UE to determine the time information for accessing the target satellite in the preset cell that delivers the assistance information without reporting its own location information.
  • the auxiliary information includes at least one of the following:
  • a cell identifier of a preset cell wherein, the preset cell is: the cell where the UE accesses the target satellite;
  • the access time parameter indicates the time parameter for the UE to access the target satellite in the preset cell
  • the duration information of the public duration includes: the duration from the preset time to the predicted time when the target satellite passes through the first reference position of the preset cell;
  • the reference point information is the position information of the second reference position of the preset cell.
  • the correspondence information between the change information and the access time parameter indicates at least one of the following:
  • the adjustment parameters include:
  • the common duration the predicted time at which the target satellite passes through the first reference position of the preset cell determined according to the ephemeris information of the target satellite, and the time duration between the preset time.
  • the common duration may be: currently oriented to all UEs in the cell sending the assistance information and/or all UEs located in a preset cell.
  • the preset moment includes:
  • the current time at this time may be: the broadcasting time of the duration information of the public duration or the time at which the UE receives the duration information.
  • the service link replacement configuration here may be configuration information instructing the UE to perform the service link replacement, and the moment when the UE receives the service link replacement configuration may also be a preset moment for timing the common duration.
  • the change information of the coverage area of the target satellite includes: a sequence of area information of multiple coverage areas that the target satellite passes through in sequence.
  • the area information includes at least one of the following:
  • the area information can be represented as at least one of the following:
  • the position information of the reference position of the coverage area and the distance information of the reference distance are the position information of the reference position of the coverage area and the distance information of the reference distance.
  • the pole position includes: a cell center of the preset cell; and/or the axial direction includes: a projection direction of the moving direction of the satellite to the ground.
  • the reference position includes: the first coverage position of the preset cell by the target satellite; and/or, the reference distance includes: the distance from the reference position of the coverage area of the satellite to the reference position The closest distance, the farthest distance from the reference position of the coverage area of the satellite.
  • the sending the assistance information for the UE to access the NTN network includes: sending a broadcast message including the assistance information; or sending a radio resource control RRC message including the assistance information.
  • an embodiment of the present disclosure provides an access device, which, when applied to a UE, includes:
  • a receiving module 610 configured to receive assistance information for the UE to access the NTN network
  • the determining module 620 is configured to determine the time information for accessing the target satellite according to the position information of the UE and the assistance information.
  • the receiving module 610 and the determining module 620 include but are not limited to program modules; after the program modules are executed by the processor, they can receive auxiliary information for accessing the NTN network, combined with the location of the UE itself information and auxiliary information to determine the time information for accessing the target satellite.
  • the receiving module 610 and the determining module 620 include, but are not limited to, a software-hardware combination module; the software-hardware combination module includes, but is not limited to, various programmable arrays; the programmable array may include: Complex programmable arrays and/or field programmable arrays.
  • the receiving module 610 and the determining module 620 may include pure hardware modules; the pure hardware modules include, but are not limited to, application specific integrated circuits.
  • the auxiliary information includes at least one of the following:
  • a cell identifier of a preset cell wherein, the preset cell is: the cell where the UE accesses the target satellite;
  • the access time parameter indicates the time parameter for the UE to access the target satellite in the preset cell
  • the duration information of the public duration includes: the duration from the preset time to the predicted time when the target satellite passes through the first reference position of the preset cell;
  • the reference point information is the position information of the second reference position of the preset cell.
  • the correspondence information between the change information and the access time parameter indicates at least one of the following:
  • the adjustment parameters include:
  • the common duration the predicted time at which the target satellite passes through the first reference position of the preset cell determined according to the ephemeris information of the target satellite, and the time duration between the preset time.
  • the preset moment includes:
  • the change information of the coverage area of the target satellite includes:
  • the area information may be represented as at least one of the following:
  • the position information of the reference position of the coverage area and the distance information of the reference distance are the position information of the reference position of the coverage area and the distance information of the reference distance.
  • the pole position includes: a cell center of the preset cell
  • the axial direction includes: the projection direction of the movement direction of the satellite to the ground.
  • the reference position includes: the first coverage position of the preset cell by the target satellite;
  • the reference distance includes: the closest distance of the coverage area of the satellite to the reference position, and the farthest distance of the coverage area of the satellite to the reference position.
  • the determining module 620 is configured to, in response to the assistance information including the correspondence information between the change information and the access time parameter, determine the UE according to the location information of the UE In the coverage area of the target satellite located in the preset cell, the time information for accessing the target satellite is determined according to the access time parameter.
  • the determining module 620 is configured to perform at least one of the following:
  • the correspondence information indicating: the correspondence between the coverage area of the target satellite and the timing duration of the access timer, determine the target where the UE is located in the preset cell according to the location information of the UE In the coverage area of the satellite, it is determined that an access request to access the target satellite is initiated when the access timer expires;
  • the correspondence information indicating: the correspondence between the coverage area of the target satellite and the adjustment parameter of the access timer, determine the target where the UE is located in the preset cell according to the location information of the UE In the coverage area of the satellite, according to the public duration and the adjustment parameter, determine the timing duration of the access timer, and determine to initiate an access request to access the target satellite when the access timer times out .
  • the determining module 620 is configured to, in response to the assistance information including the change information of the coverage area of the target satellite, according to the location information of the UE and the coverage area of the target satellite change information, determine that the UE is located in the coverage area of the target satellite in the preset cell, according to the access time offset between the coverage areas of multiple target satellites and at least one of the coverage areas the access time, determine the time information for accessing the target satellite in the preset cell;
  • the UE In response to the assistance information including the reference point information, determining that the UE accesses the UE in the preset cell according to the relative position relationship between the UE position information and the reference position indicated by the reference point information Time information of the target satellite.
  • the time information for accessing the target satellite in the preset cell includes the following:
  • the timer information of the access timer for accessing the target satellite in the preset cell is the timer information of the access timer for accessing the target satellite in the preset cell
  • An adjustment parameter of the timing duration of the access timer for accessing the target satellite in the preset cell relative to the public duration is an adjustment parameter of the timing duration of the access timer for accessing the target satellite in the preset cell relative to the public duration.
  • the determining module 620 is configured to determine that the UE is located in a preset cell according to the location information of the UE, and to start the access timer according to the start time information of the access timer included in the auxiliary information. the access timer; when the access timer expires, access the target satellite in the preset cell.
  • the apparatus further comprises:
  • a start module configured to start the access timer when the configuration information of the target satellite is received in response to the fact that the auxiliary information does not include the start time information of the access timer;
  • the determining module 620 is configured to determine that the UE is located in a preset cell according to the location information of the UE when the access timer expires according to the duration of the access timer determined according to the auxiliary information In the preset cell, the target satellite is accessed.
  • the absolute time indicated by the absolute time information includes: Coordinated Universal Time UTC.
  • the receiving module 610 is configured to receive a broadcast message including the auxiliary information; or, receive a radio resource control RRC message including the auxiliary information.
  • an embodiment of the present disclosure provides an auxiliary information processing apparatus, wherein, applied to the network side, the method includes:
  • the sending module 710 is configured to send auxiliary information for the UE to access the NTN network, wherein the auxiliary information is used for the UE to determine the time information for accessing the target satellite in the preset cell according to its own location information.
  • the auxiliary information processing apparatus may be applied to an access device of an NTN network.
  • the access equipment of the NTN includes, but is not limited to, satellites.
  • the sending module 710 includes but is not limited to a program module; after the program module is executed by the processor, the program module can send assistance information for the UE to determine the time information of the target satellite connected to the NTN network.
  • the sending module 710 includes, but is not limited to, a software-hardware combination module; the software-hardware combination module includes, but is not limited to, various programmable arrays; the programmable arrays may include: complex programmable arrays and/or or field programmable arrays.
  • the sending module 710 includes a pure hardware module; the pure hardware module includes but is not limited to: an application specific integrated circuit.
  • the auxiliary information includes at least one of the following:
  • a cell identifier of a preset cell wherein, the preset cell is: the cell where the UE accesses the target satellite;
  • the access time parameter indicates the time parameter for the UE to access the target satellite in the preset cell
  • the duration information of the public duration includes: the duration from the preset time to the predicted time when the target satellite passes through the first reference position of the preset cell;
  • the reference point information is the position information of the second reference position of the preset cell.
  • the correspondence information between the change information and the access time parameter indicates at least one of the following:
  • the adjustment parameters include:
  • the common duration the predicted time at which the target satellite passes through the first reference position of the preset cell determined according to the ephemeris information of the target satellite, and the time duration between the preset time.
  • the preset moment includes:
  • the change information of the coverage area of the target satellite includes:
  • the area information includes at least one of the following:
  • the area information can be represented as at least one of the following:
  • the position information of the reference position of the coverage area and the distance information of the reference distance are the position information of the reference position of the coverage area and the distance information of the reference distance.
  • the pole position includes: a cell center of the preset cell
  • the axial direction includes: the projection direction of the movement direction of the satellite to the ground.
  • the reference position includes: the first coverage position of the preset cell by the target satellite;
  • the reference distance includes: the closest distance of the coverage area of the satellite to the reference position, and the farthest distance of the coverage area of the satellite to the reference position.
  • the sending module 710 is configured to send a broadcast message including the auxiliary information; or, to send a radio resource control RRC message including the auxiliary information.
  • the embodiments of the present disclosure propose an enhanced method for triggering UE access to a target satellite based on time/timer.
  • the UE does not need to report its own location information, and the UE does not need to report its own location information.
  • the UE does not need to obtain the ephemeris information of the satellites.
  • the UE determines the time when the UE initiates the procedure of accessing the target satellite according to its own location information and the auxiliary information provided by the network.
  • the auxiliary information includes at least one of the following:
  • Area information the area information is used by the UE to determine the area where it is located; multiple area information will constitute the change information provided by the foregoing embodiments.
  • the corresponding relationship between the area and the access time parameter, the corresponding relationship between the area and the access time parameter is used by the UE to determine the time parameter for accessing the target satellite according to the area where it is located;
  • the timer start time T0, the timer start time is used by the UE to determine the start time of the timer;
  • the public duration is used by the UE to adjust the public duration according to the timer adjustment parameter to generate a UE-specific timer, thereby triggering the process of the UE accessing the target satellite;
  • a position reference point, the position reference point is used by the UE to obtain the relative position relationship between its own position and the reference point.
  • the corresponding relationship between the area and the access time parameter may include at least one of the following:
  • the corresponding relationship between the area and the access time refers to the absolute time when the UE located in this area initiates the process of accessing the target satellite;
  • the correspondence between the area and the duration of the access timer refers to the duration of the timer corresponding to the process that the UE located in this area initiates the process of accessing the target satellite;
  • the corresponding relationship between the area and the access timer adjustment parameter refers to the timer adjustment parameter corresponding to the process that the UE located in this area initiates access to the target satellite.
  • the area information can be determined by:
  • the area may be determined by a polar coordinate system with a certain position as the pole and a certain fixed direction as the polar axis direction of the network, and the pole position includes but is not limited to the center point of the cell.
  • the polar axis direction can be the projection of the moving direction of the satellite on the ground, or it can be any other direction.
  • the network broadcasts the polar coordinate system position, that is, the pole position and the polar axis direction.
  • the network broadcasts the range of the polar angle corresponding to the location of each area, as well as the reference distance.
  • the area can also be determined by the network through a set of latitude and longitude on the ground or a fixed set of coordinates;
  • the area can also be determined by the network through the reference position and the reference distance, with the reference position as the center of the circle and the reference distance as the radius to form the corresponding area.
  • the reference position may be the position where the target satellite first covers the preset cell.
  • the public duration is determined by the network according to ephemeris information of satellites and a certain position in the cell as a reference position, and the reference position used to configure the public duration may be the center point of the cell, or the reference position in the cell. other locations.
  • the assistance information may be provided to the UE through system broadcast or RRC message.
  • the network in response to the corresponding relationship between the area and the access time parameter being: the corresponding relationship between the area and the access time, the network needs to provide the corresponding relationship between the area and the access time before the earliest absolute time The UE configures the access configuration corresponding to the target satellite cell.
  • the corresponding relationship between the area and the access time parameter in response to the response is: the corresponding relationship between the area and the access timer duration, or the corresponding relationship between the area and the access timer adjustment parameter, and if The auxiliary information includes the timer start time T0, and the network needs to configure the UE with the access configuration corresponding to the target satellite cell before the time T0.
  • the UE After receiving the auxiliary information, the UE performs an access operation in combination with its own location information.
  • the access operations performed are different for different types of the corresponding relationship between the area and the access time.
  • performing an access operation in combination with its own location information may include at least one of the following:
  • the UE In response to the corresponding relationship between the area and the access time parameter: the corresponding relationship between the area and the access time, the UE obtains the absolute time corresponding to the area where it is located, and initiates the process of accessing the target satellite based on this time;
  • the UE In response to the corresponding relationship between the area and the access time parameter: the corresponding relationship between the area and the access timer duration, the UE obtains the timer duration corresponding to the area where it is located, and triggers the process of the UE accessing the target satellite based on this timer;
  • the UE In response to the corresponding relationship between the area and the access time parameter is: the corresponding relationship between the area and the timer adjustment parameter, the UE obtains the timer adjustment parameter corresponding to the area where it is located, adjusts the common timer, and obtains the corresponding UE for triggering.
  • the timer for accessing the target satellite based on which the procedure of UE accessing the target satellite is triggered.
  • the UE determines the absolute time of accessing the satellite, or the timer duration, or the timer scaling parameter according to the area where it is located. In this case, the network provides the public duration.
  • the UE determines the absolute time of accessing the satellite, or the timer duration, or the timer scaling parameter according to the relative position relationship between its own position and the reference point. In this case, the network provides a common duration.
  • the performed access operation may include at least one of the following:
  • the UE If the network provides the timer start time T0, the UE starts the timer when it reaches the time T0, and when the timer expires, the process of the UE accessing the target satellite is triggered;
  • the UE starts the timer when it receives the system message or RRC message corresponding to the access target satellite configuration, and when the timer times out, triggers the process for the UE to access the target satellite;
  • the corresponding relationship between the area and the access time parameter the corresponding relationship between the area and the access time, if the UE initiates the process of accessing the target satellite cell based on the absolute time, when this time arrives, the access is initiated based on this time. The process of entering the target satellite.
  • the absolute moment may be UTC time
  • the UE determines whether it belongs to the polar angle range corresponding to the area provided by the network in ascending order.
  • Figure 8A, Figure 8B to Figure 8C the area is determined by a polar coordinate system with a certain position of the network as the pole and a certain fixed direction as the polar axis direction.
  • the UE determines whether its location is within the polar angle range corresponding to a certain area configured by the network, and the connecting line segment between the location of the UE and the pole is at the angle of the area where the area is located. If the projection on the bisector is greater than or equal to the reference distance, it is judged that the UE is located in this area, otherwise, it is judged that the UE is not located in this area;
  • the UE determines whether its location is within the polar angle range corresponding to a certain area configured by the network, or the projection of the connecting line segment between the UE location and the pole on the bisector of the angle where the area is located. If it is less than or equal to the reference distance, it is determined that the UE is located in this area, otherwise, it is determined that the UE is not located in this area.
  • the serving satellite (Satellite, SA) 0 covers a fixed preset cell on the ground. As time moves from T1 to T3 through T2, the target satellite SA1 gradually approaches the preset cell and covers the preset cell. It can be seen from FIGS.
  • the embodiment of the present disclosure also provides another UE access method, which may be specifically as follows:
  • the public duration of the network broadcast is 100ms
  • the timer start time T0 is: 12:00:00:00 on December 3, 2020
  • the target satellite cell ID is: Cell 1
  • the information on the range of the network broadcast area is as follows in Table 1:
  • the UE obtains its own position and expresses it in the polar coordinate system broadcast by the network, which is ( ⁇ /4, 212.1).
  • Table 1 is an exemplary example, and any element in Table 1 can be used alone or in combination.
  • the UE judges whether it is located in the area in the order of the polar angle range from small to large, that is, from the order of A to F, first judges that the UE is not within the polar angle range of the A area, so the UE is not in the A area, and judges that the UE is located in the B area.
  • the polar angle range, and the length of the projected line segment on the bisector of the angle between the position of the UE and the pole is 150, which is less than 200. Therefore, the UE is located in the B area, and the corresponding timer adjustment parameter is 0.4.
  • the corresponding access timer is 40ms
  • the network Before time T0, the network provides the configuration of the UE accessing the target satellite cell through an RRC message in advance;
  • the UE starts the adjusted timer, and when the timer expires, the process of accessing the target satellite by the UE is triggered;
  • Embodiments of the present disclosure provide a communication device, including:
  • memory for storing processor-executable instructions
  • the processor is connected to the memory;
  • the processor is configured to execute the access method and/or the auxiliary information processing method provided by any of the foregoing technical solutions.
  • the processor may include various types of storage media, which are non-transitory computer storage media that can continue to memorize information stored thereon after the communication device is powered down.
  • the communication device includes a base station or a UE.
  • the processor may be connected to the memory through a bus or the like, for reading executable programs stored on the memory, for example, at least one of the methods shown in FIG. 3 and/or FIG. 5 .
  • FIG. 9 is a block diagram of a UE (UE) 800 according to an exemplary embodiment.
  • UE 800 may be a mobile phone, computer, digital broadcast user equipment, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, and the like.
  • UE 800 may include one or more of the following components: processing component 802, memory 804, power supply component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and Communication component 816.
  • the processing component 802 generally controls the overall operations of the UE 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 802 can include one or more processors 820 to execute instructions to perform all or some of the steps of the methods described above.
  • processing component 802 may include one or more modules that facilitate interaction between processing component 802 and other components.
  • processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.
  • Memory 804 is configured to store various types of data to support operation at UE 800 . Examples of such data include instructions for any application or method operating on the UE 800, contact data, phonebook data, messages, pictures, videos, etc.
  • Memory 804 may be implemented by any type of volatile or nonvolatile storage device or combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • Power supply component 806 provides power to various components of UE 800 .
  • Power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to UE 800 .
  • Multimedia component 808 includes screens that provide an output interface between the UE 800 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
  • the touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundaries of a touch or swipe action, but also detect the duration and pressure associated with the touch or swipe action.
  • the multimedia component 808 includes a front-facing camera and/or a rear-facing camera. When the UE 800 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have focal length and optical zoom capability.
  • Audio component 810 is configured to output and/or input audio signals.
  • the audio component 810 includes a microphone (MIC) that is configured to receive external audio signals when the UE 800 is in operating modes, such as call mode, recording mode, and voice recognition mode.
  • the received audio signal may be further stored in memory 804 or transmitted via communication component 816 .
  • audio component 810 also includes a speaker for outputting audio signals.
  • the I/O interface 812 provides an interface between the processing component 802 and a peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.
  • Sensor component 814 includes one or more sensors for providing various aspects of status assessment for UE 800 .
  • the sensor component 814 can detect the open/closed state of the device 800, the relative positioning of components, such as the display and keypad of the UE 800, the sensor component 814 can also detect the position change of the UE 800 or a component of the UE 800, the user and the UE 800. Presence or absence of UE800 contact, UE800 orientation or acceleration/deceleration and UE800 temperature changes.
  • Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 816 is configured to facilitate wired or wireless communications between UE 800 and other devices.
  • the UE 800 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, 4G, 5G, 6G, or a combination thereof.
  • the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • UE 800 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gates An array (FPGA), controller, microcontroller, microprocessor, or other electronic component implementation for performing the above method.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable gates
  • controller microcontroller, microprocessor, or other electronic component implementation for performing the above method.
  • non-transitory computer-readable storage medium including instructions, such as a memory 804 including instructions, which are executable by the processor 820 of the UE 800 to perform the above method.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.
  • an embodiment of the present disclosure shows a structure of a base station.
  • the access device 900 may be provided as a network-side device.
  • a satellite of the NTN network is a kind of access device 900 .
  • the access device 900 includes a processing component 922, which further includes one or more processors, and a memory resource, represented by memory 932, for storing instructions executable by the processing component 922, such as an application program.
  • An application program stored in memory 932 may include one or more modules, each corresponding to a set of instructions.
  • the processing component 922 is configured to execute instructions to execute any of the aforementioned methods applied to the base station, eg, as shown in FIG. 2 , FIG. 3 , FIG. 9 and/or FIG. 10 .
  • the access device 900 may also include a power supply assembly 926 configured to perform power management of the access device 900, a wired or wireless network interface 950 configured to connect the access device 900 to a network, and an input and output (I/O ) interface 958.
  • Access device 900 may operate based on an operating system stored in memory 932, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.

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Abstract

本公开实施例提供一种接入方法、辅助信息处理方法及装置、设备及存储介质。应用于UE中的接入方法，包括：接收所述UE接入NTN网络的辅助信息；根据UE的位置信息和所述辅助信息，确定接入目标卫星的时间信息。

Description

接入方法、辅助信息处理方法及装置、设备及存储介质 技术领域
本公开涉及无线通信技术领域但不限于无线通信技术领域，尤其涉及一种接入方法、辅助信息处理方法及装置、设备及存储介质。
背景技术
在第五代移动通信(5th Generation，5G)系统中引入了非陆地网络(Non-terrestrial Networks，NTN)。在目前的研究中，NTN网络支持地面固定小区(Earth fixed cell)和地面移动小区(Earth moving cell)两种场景。相对于基于近地轨道/低轨(Low Earth Orbiting，LEO)卫星的小区在地面上的地面移动小区，基于LEO的地面固定小区是指在一定时间内，小区相对于地球上的某个位置是固定的。这可以通过卫星产生固定在地面上的可操纵波束来实现。
发明内容
本公开实施例提供一种接入方法、辅助信息处理方法及装置、设备及存储介质。
本公开实施例第一方面提供一种接入方法，应用于用户设备(User Equipment，UE)中，所述方法包括：
接收所述UE接入NTN网络的辅助信息；
根据UE的位置信息和所述辅助信息，确定接入目标卫星的时间信息。
本公开实施例第二方面提供一种辅助信息处理方法，其中，应用于网络侧，所述方法包括：
发送供UE接入NTN网络的辅助信息，其中，所述辅助信息，用于供UE根据自身的位置信息确定在预设小区内接入目标卫星的时间信息。
本公开实施例第三方面提供一种接入装置，其中，应用于UE中，包括：
接收模块，被配置为接收所述UE接入NTN网络的辅助信息；
确定模块，被配置为根据UE的位置信息和所述辅助信息，确定接入目标卫星的时间信息。
本公开实施例第四方面提供一种辅助信息处理装置，其中，应用于网络侧，所述方法包括：
发送模块，被配置为发送供UE接入NTN网络的辅助信息，其中，所述辅助信息，用于供UE根据自身的位置信息确定在预设小区内接入目标卫星的时间信息。
本公开实施例第五方面提供一种通信设备，包括处理器、收发器、存储器及存储在存储器上并能够有所述处理器运行的可执行程序，其中，所述处理器运行所述可执行程序时执行如前述第一方面或第二方面提供方法。
本公开实施例第六方面提供一种计算机存储介质，所述计算机存储介质存储有可执行程序；所述可执行程序被处理器执行后，能够实现前述的第一方面或第二方面提供的方法。
本公开实施例提供的技术方案，UE会从NTN网络的网络侧接收接入到NTN网络的辅助信息，该辅助信息可是根据目标卫星的星历信息确定的，但是不包含星历信息自身的信息。此时UE可以在不上报自身位置信息的情况下，结合自身的位置信息及辅助信息，确定出接入到目标卫星的时间信息，从而减少了UE进行服务链路更换(Service Link Switch)过程中UE的位置信息和目标卫星的星历信息的传输，从而保护了UE的位置信息和目标卫星的星历信息的私密性，提升了UE的位置信息和/或目标卫星的星历信息的安全性。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开实施例。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本发明实施例，并与说明书一起用于解释本发明实施例的原理。
图1是根据一示例性实施例示出的一种无线通信系统的结构示意图；
图2A是根据一示例性实施例示出的一种NTN网络的结构示意图；
图2B是根据一示例性实施例示出的一种TN和NTN对近UE和远UE的信号接收强度的比对示意图；
图3是根据一示例性实施例示出的接入方法的流程示意图；
图4A是根据一示例性实施例示出的一种预设小区的覆盖示意图；
图4B是根据一示例性实施例示出的一种预设小区的覆盖示意图；
图5是根据一示例性实施例示出的一种辅助信息处理方法的流程示意图；
图6是根据一示例性实施例示出的一种UE接入装置的结构示意图；
图7是根据一示例性实施例示出的一种辅助信息处理装置的结构示意图；
图8A是根据一示例性实施例示出的目标卫星的覆盖区域的变换示意图；
图8B是图8A一个时刻的覆盖示意图的放大示意图；
图8C是图8B一个时刻的覆盖示意图的放大示意图；
图9是根据一示例性实施例示出的一种UE的结构示意图；
图10是根据一示例性实施例示出的一种基站的结构示意图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式 并不代表与本发明实施例相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本发明实施例的一些方面相一致的装置和方法的例子。
在本公开实施例使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开实施例。在本公开实施例和所附权利要求书中所使用的单数形式的“一种”、“”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本公开实施例可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本公开实施例范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。
请参考图1，其示出了本公开实施例提供的一种无线通信系统的结构示意图。如图1所示，无线通信系统是基于蜂窝移动通信技术的通信系统，该无线通信系统可以包括：若干个UE11以及若干个基站12。
其中，UE11可以是指向用户提供语音和/或数据连通性的设备。UE11可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，UE11可以是物联网UE，如传感器设备、移动电话(或称为“蜂窝”电话)和具有物联网UE的计算机，例如，可以是固定式、便携式、袖珍式、手持式、计算机内置的或者车载的装置。例如，站(Station，STA)、订户单元(subscriber unit)、订户站(subscriber station)、移动站(mobile station)、移动台(mobile)、远程站(remote station)、接入点、远程UE(remote terminal)、接入UE(access terminal)、用户装置(user terminal)、用户代理(user agent)、用户设备(user device)、或用户UE(user equipment，UE)。或者，UE11也可以是无人飞行器的设备。或者，UE11也可以是车载设备，比如，可以是具有无线通信功能的行车电脑，或者是外接行车电脑的无线通信设备。或者，UE11也可以是路边设备，比如，可以是具有无线通信功能的路灯、信号灯或者其它路边设备等。
基站12可以是无线通信系统中的网络侧设备。其中，该无线通信系统可以是第四代移动通信技术(the 4th generation mobile communication，4G)系统，又称长期演进(Long Term Evolution，LTE)系统；或者，该无线通信系统也可以是5G系统，又称新空口(new radio，NR)系统或5G NR系统。或者，该无线通信系统也可以是5G系统的再下一代系统。其中，5G系统中的接入网可以称为NG-RAN(New Generation-Radio Access Network，新一代无线接入网)。或者，MTC系统。
其中，基站12可以是4G系统中采用的演进型基站(eNB)。或者，基站12也可以是5G系统中采用集中分布式架构的基站(gNB)。当基站12采用集中分布式架构时，通常包括集中单元(central unit，CU)和至少两个分布单元(distributed unit，DU)。集中单元中设置有分组数据汇聚协议(Packet Data Convergence Protocol，PDCP)层、无线链路层控制协议(Radio Link Control，RLC)层、媒体访问控制(Media Access Control，MAC)层的协议栈；分布单元中设置有物理(Physical，PHY)层 协议栈，本公开实施例对基站12的具体实现方式不加以限定。
基站12和UE11之间可以通过无线空口建立无线连接。在不同的实施方式中，该无线空口是基于第四代移动通信网络技术(4G)标准的无线空口；或者，该无线空口是基于第五代移动通信网络技术(5G)标准的无线空口，比如该无线空口是新空口；或者，该无线空口也可以是基于5G的更下一代移动通信网络技术标准的无线空口。
在一些实施例中，UE11之间还可以建立E2E(End to End，端到端)连接。比如车联网通信(vehicle to everything，V2X)中的V2V(vehicle to vehicle，车对车)通信、V2I(vehicle to Infrastructure，车对路边设备)通信和V2P(vehicle to pedestrian，车对人)通信等场景。
在一些实施例中，上述无线通信系统还可以包含网络管理设备13。
若干个基站12分别与网络管理设备13相连。其中，网络管理设备13可以是无线通信系统中的核心网设备，比如，该网络管理设备13可以是演进的数据分组核心网(Evolved Packet Core，EPC)中的移动性管理实体(Mobility Management Entity，MME)。或者，该网络管理设备也可以是其它的核心网设备，比如服务网关(Serving Gate Way，SGW)、公用数据网网关(Public Data Network GateWay，PGW)、策略与计费规则功能单元(Policy and Charging Rules Function，PCRF)或者归属签约用户服务器(Home Subscriber Server，HSS)等。对于网络管理设备13的实现形态，本公开实施例不做限定。
对于地面固定小区的通信场景，当小区内UE所观测到的服务LEO卫星的仰角即将低于最低仰角的阈值时，小区内所有的UE即将失去此卫星的覆盖，需要接入新的卫星的小区。所以，即使UE相对于地面静止，考虑到卫星的移动，为了保证NTN网络的服务连续性，地面固定小区的场景仍然需要移动性管理。为了能够满足上述UE接入新的小区的需求，在地球上某一特定点上连续两颗LEO卫星之间有足够的时间进行重叠覆盖，以便小区内大量UE有足够的时间能够离开原卫星覆盖的小区并接入新卫星的小区。
如图2A所示，在地面固定小区的通信场景中，随着卫星的移动，卫星只能服务地面上某一固定区域一段时间，在某一时刻，此区域内UE由于卫星的离开，需要进行服务链路的切换，接入新的卫星。如图2A所示，假设卫星1和卫星2都沿着同一个方向运动，则卫星1和卫星2在对小区PCI1和PCI2的覆盖过程中发生切换。
参考图2B所示，在地面网络(Terrestrial Networks，TN)系统中，UE可以根据小区中心与小区边缘的参考信号接收功率(Reference Signal Received Power，PSPR)或参考信号接收质量(Reference Signal Received Quality，RSPQ)的明显差异来确定UE是否处于小区边缘附近。地面基站(gNB)发射的信号，到近UE和远UE的接收信号强度可以看出来从小区中心到小区边缘衰减得比较明显。但在NTN网络中，小区半径大，UE在小区中心或者边缘(即近UE和远UE)，其RSRP/RSRQ差异较小，远近效应并不明显。所以TN网络中基于信号强度来触发切换并不适用于NTN网络。在相关技术中，在NTN网络中引入基于位置的基于条件的切换(Conditional Handover，CHO)触发事件和基于时间/定时器的触发事件。
当在服务链路切换(Service Link Switch)中采用基于时间/定时器的CHO触发事件，UE需要上报自身的位置，网络根据UE上报的位置信息来配置CHO触发时间/定时器时长。但是考虑到UE的隐私，所以可能在NTN中并不支持UE上报自己的位置信息。
有鉴于此，如图3所示，本公开实施例提供一种接入方法，其中，应用于UE中，包括：
S110：接收所述UE接入NTN网络的辅助信息；
S120：根据UE的位置信息和所述辅助信息，确定接入目标卫星的时间信息。
该辅助信息可为NTN网络根据目标卫星的星历信息确定的，但不直接包含目标卫星的星历信息的信息。
UE会接收到NTN网络下发的辅助信息，该辅助信息可为UE当前的服务卫星下发或者，为当前覆盖预设小区的源卫星下发。该服务卫星可为UE当前接入的卫星。
所述目标卫星可为所述UE待接入的下一个卫星。
此处的服务卫星和/或所述目标卫星均可为LEO卫星，但不限于LEO卫星。
所述预设小区可包括但不限于地面固定小区。
在本公开实施例中，UE接收到辅助信息之后结合自己的位置信息，确定出接入到目标卫星的时间信息。该时间信息可为任意可供UE确定何时能够接入到目标卫星的时间信息，和/或可供UE确定出能够在哪个时间段或持续多长时间接入到所述目标卫星的时间信息。
通过不携带目标卫星的星历信息的辅助信息的下发，UE可以在不上报自身的位置信息的情况下，也在不知晓目标卫星的星历信息的情况下，可以简便的确定出接入到目标卫星的时间信息，从而减少了UE的位置信息和/或目标卫星的星历信息的传输过程中的泄露，提升了目标卫星的星历信息和/或UE的位置信息的信息安全性。
在一个实施例中，所述辅助信息包括以下至少之一：
预设小区的小区标识；其中，所述预设小区为：所述UE接入所述目标卫星时所在的小区；
所述目标卫星的覆盖区域的变化信息；
所述变化信息与接入时间参数之间的对应关系信息；其中，所述接入时间参数，指示所述UE在所述预设小区内接入所述目标卫星的时间参数；
接入所述目标卫星的接入定时器的启动时刻信息；
公共时长的时长信息；其中，所述公共时长包括：从预设时刻开始到所述目标卫星经过预设小区的第一参考位置的预测时刻之间的时长；
参考点信息，是预设小区的第二参考位置的位置信息。
所述预设小区可为：UE当前所在的小区和/或UE根据自身的移动信息确定出预测出的接入到目标卫星时所在的小区。
所述小区标识可为小区ID(Identification，ID)，示例性地，所述小区标识可为所述预设小区的物理小区标识(Physical Cell ID，PCI)。
参考图4A和图4B所示，源卫星的覆盖区域和目标卫星的覆盖区域都可能大于预设小区的面积。 若预设小区为地面固定小区(或称地面静止小区)，则如图4A所示，当前预设小区被源卫星覆盖。随着时间的推移，源卫星和目标卫星都在移动，到图4B所示的时刻，预设小区的一部分同时被源卫星和目标卫星覆盖，预设小区的另一个部分仅被目标卫星覆盖。
若UE位于预设小区内，若预设小区的小区标识维持不变的情况下，UE需要将服务链路从源卫星切换到目标卫星上，则需要获得目标卫星能够接入的时间信息。当然在另一个实施例中，预设小区在地面静止，但是随着覆盖其卫星的变换，预设小区的小区标识也可以发生变化，例如，从目标卫星覆盖预设小区时的PCI不同于源卫星覆盖预设小区时的PCI。
所述辅助信息还可包括：目标卫星的覆盖区域的变化信息，该变化信息体现了目标卫星的覆盖区域的在时域上的变化情况。该变化信息可是根据目标卫星的星历信息确定的，但并非是目标卫星的星历信息的本身。
若此时，UE接收到所述变化信息，可以根据UE接入到目标卫星的历史接入信息，结合所述变化信息，可以结合自身的位置信息，当自身位于目标卫星的一个覆盖区域内之后，结合在该覆盖区域内的历史接入信息等，可以确定出在对应目标卫星的对应覆盖区域内的接入时间等确定出在预设小区内接入到目标卫星的时间信息。
再例如，UE除了接收辅助信息之后还可以从NTN网络的网络侧接收接入配置信息，该接入配置信息可至少指示在预设小区内接入到目标卫星的一个覆盖区域的时间信息，然后结合变化信息得到的接入到不同覆盖区域之间的时间偏移量，如此，UE可以确定出在覆盖区域内接入目标卫星的每一个覆盖区域的时间信息。
例如，所述目标卫星的覆盖区域的变化信息可包括：目标卫星在一个周期内能够覆盖的区域(即所述覆盖区域)的区域信息形成列表。
所述变化信息与接入时间参数之间的对应关系信息，该对应关系信息指示的是：目标卫星的覆盖区域与在目标卫星的对应覆盖区域内接入目标卫星的时间参数之间的对应关系。
如此，若UE接收到该对应关系，可以根据覆盖区域和接入时间参数之间的对应关系，结合自身位置是否在对应覆盖区域，就可以确定出UE在预设小区哪个区域，和/或UE所在位置是否可以接入到目标卫星、和/或具体何时接入到目标卫星等信息。
所述接入定时器可为：接入到目标卫星的定时器。
在一个实施例中，所述辅助信息还包括：接入定时器的启动时刻信息。由于卫星小区的覆盖面积大，不同UE接收到相同卫星发送的传输时延是不同的，相对于UE接收到辅助信息或者接入定时器的定时信息之后直接启动接入定时器，在不同UE之间形成接入定时器的启动时间差的现象，在本公开实施例的辅助信息中携带有接入定时器的启动时刻信息。该启动时刻信息指示的是：接入定时器的启动时刻。如此，辅助信息通过启动时刻信息的携带，可以实现不同UE启动的接入定时器的启动时刻的一致性。
在一个实施例中，所述接入定时器可为供UE确定接入到目标卫星的时间信息的定时器示例性地，所述UE可以在接入定时器的运行时间范围内接入到目标卫星，或者，UE可以在接入定时器超 时时接入到目标卫星。当然以上仅是对接入定时器为UE确定接入到目标卫星的时间信息的举例，具体实现时不局限于此。
在一个实施例中，所述变化信息与接入时间参数之间的对应关系信息，指示以下至少之一：
所述目标卫星的覆盖区域与接入时刻的对应关系；
所述目标卫星的覆盖区域与接入定时器的定时时长的对应关系；
所述目标卫星的覆盖区域与接入定时器的调整参数的对应关系；其中，所述调整参数，指示所述接入定时器相对于公共时长的调整参数。
例如，将目标卫星在运行时所覆盖的区域划分为N个覆盖区域，则此时所述变换信息与接入时间参数之间的对应关系信息指示的所述目标卫星的覆盖区域与接入时刻的对应关系，可包括：N个覆盖区域与这N个覆盖区域分别对应的接入时刻之间的对应关系。
该接入时刻可为绝对时刻。该绝对时刻包括但不限于协调世界时间UTC来指示或者某个地区的时间来指示，例如，北京时间或东京时间等。
在一个实施例中，公共时长可为：在该预设小区内的所有UE接入到目标小区等待的公共时长。若UE等待公共时长，则目标卫星可能覆盖整个预设小区，则该预设小区内的所有UE都可以接入到目标卫星。
在另一个实施例中，目标卫星相对于地面的预设小区是移动的，位于预设小区的边缘的UE实际上可能不用等待公共时长就可以接入到目标小区。在一个实施例中，还引入了接入定时器；该接入定时器的定时时长可根据公共时长来确定。具体如何根据公共时长来确定，可以是根据调整参数来确定。该调整参数可以用于调整公共时长，调整的结果即可为所述接入定时器的定时时长。
在一些实施例中，所述调整参数包括：
偏移量；和/或，缩放比例。
所述偏移量，可以用于与所述公共时长进行加减法运算，从而得到UE所在位置对应的接入定时器的定时时长。
所述缩放比例，可以用于通过与公共时长的乘法运算，从而得到UE所在位置对应的接入定时器的定时时长。
在一个实施例中，公共时长：根据所述目标卫星的星历信息确定的所述目标卫星经过预设小区的第一参考位置的预测时刻，和所述预设时刻之间的时长。
此处的第一参考位置可为预设小区内任意位置，例如，预设小区的中心点的位置，或者，所述预设小区内与目标卫星当前距离最小的点的位置。
总之这里的第一参考位置可为预先设置的预设小区内的任意一个位置。
所述参考点位置信息，可为预设小区内第二参考点的位置，同样地，此处的第二参考点可为所述预设小区的小区中心点或者边缘位置处的边缘点。
在本公开实施例中，所述第一参考点和第二参考点可以相同或者不相同。
在一个实施例中，所述预设时刻包括：
当前时刻；
或者，
服务链路更换配置的接收时刻。
所述当前时刻可为：所述辅助信息下发的当前时刻。
所述服务链路更换配置的接收时刻，为：UE接收到服务链路更换配置的时刻。所述服务链路更换配置，用于指示UE进行服务链路的更换。
所述服务链路为UE与服务卫星之间的链路。
在一些实施例中，所述目标卫星的覆盖区域的变化信息，包括：
所述目标卫星依次经过的多个所述覆盖区域的区域信息的序列。
例如，目标卫星在未来预设的一段时长内将陆续经过并覆盖区域A、区域B、区域C及区域D。将区域A、区域B、区域C及区域D的区域信息在时域上依次排序，形成所述序列。
此时，UE接收到的就是由区域信息构成的序列，就可以在不用知晓目标卫星的星历信息的情况下，就能够知晓目标卫星未来的预设时长将依次覆盖的区域，若UE在目标卫星经过的时候正好在目标卫星的覆盖区域内，则可以接入到目标卫星。在接入目标卫星时，UE可以通过小区切换请求，接入到目标卫星所形成的小区内，或者在不切换小区的情况下通过服务链路更换接入到目标卫星。
在一些实施例中，所述区域信息可以表示为以下之一：
极坐标系的极点位置的位置信息及所述极坐标系的轴向方向、及所述覆盖区域在所述极坐标系内的极坐标；
所述覆盖区域的经纬度；
所述覆盖区域在世界坐标系内的坐标；
所述覆盖区域的基准位置的位置信息和基准距离的距离信息。
所述目标卫星的覆盖区域的区域信息可以多种，以上仅是举例，具体实现时，不局限于以上任意一种举例。
例如，通过极坐标系来指示所述目标卫星的覆盖区域的区域信息。当然也可以指示坐标系来描述目标卫星的覆盖区域的区域信息。
若采用极坐标描述目标卫星的覆盖范围，则在确定UE是否在预设小区内位于目标卫星的覆盖范围内时，可以采用极角范围来确定。
示例性地，当目标卫星的覆盖区域对应的极角范围小于或等于π时，UE通过判断自身所处位置是否在网络配置的某一覆盖区域对应的极角范围内，且UE所在位置与极点位置的连接线段在覆盖区域所在角度的角平分线上的投影大于或等于参考距离，来判定UE位于此覆盖区域内，否则，判定UE不位于此区域内；
当极角范围大于π时，UE通过判断自身所处位置是否在网络配置的某一覆盖区域对应的极角范围内，或UE所在位置与极点位置的连接线段在覆盖区域所在角度的角平分线上的投影小于或等于参考距离，则判定UE位于此覆盖区域内，否则，判定UE不位于此覆盖区域内。
再例如，使用经纬度来描述目标卫星的覆盖区域的区域信息。
在一个实施例中可以世界坐标系的坐标来指示目标卫星依次经过的多个覆盖区域的区域信息。、覆盖区域的基准位置可为预先确定的任意位置，例如，预设小区的小区中心或者地面的任意一个位置。获取到急转位置的位置信息和覆盖区域与基站位置之间的距离信息，如此，UE也可以知晓目标卫星所覆盖区域的区域信息。
示例性地，所述极点位置包括：所述预设小区的小区中心；和/或，所述轴向方向包括：所述卫星的运动方向往地面的投影方向。
此处是对极点位置和/或轴向方向的示例性举例，具体实现过程中，所述极点位置还可以是预设小区中当前最靠近目标卫星的边缘点或者当前距离目标卫星的最远的边缘点。所述轴向方向还可为：目标卫星指向地心的连线方向。
当然以上仅是对极点位置和/或轴向方向的举例，具体实现时不局限于上述举例。
在一个实施例中，所述基准位置，包括：所述目标卫星对所述预设小区的首个覆盖位置；
和/或，
所述基准距离包括：所述卫星的覆盖区域的离基准位置的最近距离、所述卫星的覆盖区域的离基准位置的最远距离。
当然以上仅是对基准位置的举例，具体实现时不局限于上述举例。
在以另一个实施例中，所述S120可包括：
响应于所述辅助信息包括所述变化信息与接入时间参数之间的对应关系信息，根据所述UE的位置信息确定出所述UE位于所述预设小区的所述目标卫星的覆盖区域内，根据所述接入时间参数确定接入到所述目标卫星的时间信息。
示例性地，所述响应于所述辅助信息包括所述变化信息与接入时间参数之间的对应关系信息，根据所述UE的位置信息确定出所述UE位于所述预设小区的所述目标卫星的覆盖区域内，根据所述接入时间参数确定接入到所述目标卫星的时间信息，包括以下至少之一：
响应于所述对应关系信息指示所述目标卫星的覆盖区域与接入时刻的对应关系，根据所述UE的位置信息确定出所述UE位于所述预设小区的所述目标卫星的覆盖区域内，确定在所述接入时刻发起接入所述目标卫星的接入请求；
响应于所述对应关系信息指示：所述目标卫星的覆盖区域与接入定时器的定时时长的对应关系，根据所述UE的位置信息确定出所述UE位于所述预设小区的所述目标卫星的覆盖区域内，确定在所述接入定时器的超时时发起接入所述目标卫星的接入请求；
响应于所述对应关系信息指示：所述目标卫星的覆盖区域与接入定时器的调整参数的对应关系，根据所述UE的位置信息确定出所述UE位于所述预设小区的所述目标卫星的覆盖区域内，根据所述公共时长及所述调整参数，确定所述接入定时器的定时时长，并确定在所述接入定时器超时时发起接入所述目标卫星的接入请求。
对应关系信息指示的对应关系不同，则UE根据自身的位置确定出位于目标卫星的覆盖区域和/ 或即将位于目标卫星的覆盖区域内时，根据对应关系可以确定出不同的时间信息，例如，确定出接入时刻、接入定时器的定时信息和/或接入定时器的定时时长相对于公共时长的调整参数等，在达到接入时刻时或者接入定时器超时请求接入目标卫星。
在一个实施例中，所述S120可包括：
响应于所述辅助信息包括所述目标卫星的覆盖区域的变化信息，根据所述UE的位置信息与所述所述目标卫星的覆盖区域的变化信息，确定出所述UE位于所述预设小区内所述目标卫星的覆盖区域，根据多个所述目标卫星的覆盖区域之间的接入时间偏移量和至少一个所述覆盖区域的接入时间，确定在所述预设小区接入所述目标卫星的时间信息；
或者，
响应于所述辅助信息包括所述参考点信息，根据所述UE位置信息与所述参考点信息指示的参考位置之间相对位置关系，确定所述UE在所述预设小区内接入所述目标卫星的时间信息。
根据所述相对位置关系，结合目标卫星的历史接入数据和/或目标卫星的其他配置信息的至少其中之一，如此，UE就可以在不上报自身的位置信息和/或知晓目标卫星的星历信息的情况下，在预设小区内接入到目标卫星的时间信息。
在一个实施例中，所述在所述预设小区接入所述目标卫星的时间信息包括以下：
在所述预设小区内接入所述目标卫星的绝对时间信息；
在所述预设小区内接入所述目标卫星的接入定时器的定时器信息；
在所述预设小区内接入所述目标卫星的接入定时器的定时时长相对于所述公共时长的调整参数。
所述绝对时间信息可以直接指示在预设小区内接入所述目标卫星的接入时刻。
在另一些实施例中，所述时间信息还可以是接入定时器的定时器信息，该定时器信息包括但不限于：
接入定时器的启动时刻信息和/或定时时长信息。
在另一个实施例中，所述时间信息还可以是接入定时器相对于公共时长的调整参数，此处的调整参数可为前述偏移量和/或缩放比例。
在另一个实施例中，所述S120可包括：
根据所述UE的位置信息确定出所述UE位于预设小区内，根据所述辅助信息包含的接入定时器的启动时刻信息启动所述接入定时器；
在所述接入定时器超时时，在所述预设小区内接入所述目标卫星。
UE接收到辅助信息之后可立即启动所述接入定时器，或者，根据辅助信息携带的启动时刻信息指示的启动时刻启动所述接入定时器；或者，在接收到NTN网络的网络侧下发的接入配置或者服务链路更换配置时启动所述接入定时器。
总之，UE启动所述接入定时器的时间点的确定方式有很种，不管采用哪种方式确定启动时刻，在所述接入定时器超时时，UE都可以在目标小区接入到目标卫星的接入流程。
该接入流程包括但不限于：接入控制和/或随机接入这两个阶段。
在一个实施例中，所述方法还包括：
响应于所述辅助信息不包含所述接入定时器的启动时刻信息，在接收到所述目标卫星的配置信息时，启动接入定时器。此处的配置信息，可为前述接入配置和/或服务链路更换配置中的一种。
所述S120可包括：
根据所述辅助信息确定的所述接入定时器的时长在所述接入定时器超时时，根据所述UE的位置信息确定出所述UE位于预设小区内，在所述预设小区内接入所述目标卫星。
示例性地，在本公开实施例中，前述任意实施例提到的绝对时间信息指示的绝对时刻包括：协调世界时间UTC。
在一个实施例中，所述接收所述UE接入NTN网络的辅助信息，包括：
接收包含所述辅助信息的广播消息；
和/或，
接收包含所述辅助信息的无线资源控制RRC消息。
在一个实施例中，所述辅助信息可为面向多个UE的广播消息，同时告知多个UE接入目标卫星的辅助信息。示例性地，该广播消息可为在预设小区内广播的消息，该预设小区可为UE当前的服务小区。
在另一个实施例中，通过RRC消息发送所述辅助信息可为UE粒度的下发所述辅助信息。
例如，UE的当前服务卫星对地运动，对预设小区的覆盖面积越来越小，此时UE可能需要进行服务链路更换。该RRC消息可为触发UE进行从当前与服务卫星之间的服务链路更换到与目标卫星之间的服务链路的RRC消息。如此，不用引入新的消息，就简便的实现了辅助信息的下发，具有与现有技术的兼容性强的特点。
如图5所示，本公开实施例提供一种辅助信息处理方法，其中，应用于网络侧，所述方法包括：
S210：发送供UE接入NTN网络的辅助信息，其中，所述辅助信息，用于供UE根据自身的位置信息确定在预设小区内接入目标卫星的时间信息。
该辅助信息处理方法，应用于网络侧，该网络侧可为NTN网络的网络侧。示例性地，该辅助信息处理方法应用于UE的服务卫星中。
网络侧向UE下发接入NTN网络的辅助信息，该辅助信息是根据目标卫星的星历信息确定的，但是并非目标卫星的星历信息自身。
该辅助信息可用于供UE在不上报自身的位置信息的情况下，确定出接入到目标卫星的时间信息。示例性地，该辅助信息可用于UE在不上报自身的位置信息的情况下，确定出在下发所述辅助信息的预设小区内接入到目标卫星的时间信息。
在一个实施例中，所述辅助信息包括以下至少之一：
预设小区的小区标识；其中，所述预设小区为：所述UE接入所述目标卫星时所在的小区；
所述目标卫星的覆盖区域的变化信息；
所述变化信息与接入时间参数之间的对应关系信息；其中，所述接入时间参数，指示所述UE在所述预设小区内接入所述目标卫星的时间参数；
接入所述目标卫星的接入定时器的启动时刻信息；
公共时长的时长信息；其中，所述公共时长包括：从预设时刻开始到所述目标卫星经过预设小区的第一参考位置的预测时刻之间的时长；
参考点信息，是预设小区的第二参考位置的位置信息。
此处辅助信息的各项信息的相关解释，可以参见前述实施例，此处就不再重复了。
在一个实施例中，所述变化信息与接入时间参数之间的对应关系信息，指示以下至少之一：
所述目标卫星的覆盖区域与接入时刻的对应关系；
所述目标卫星的覆盖区域与接入定时器的定时时长的对应关系；
所述目标卫星的覆盖区域与接入定时器的调整参数的对应关系；其中，所述调整参数，指示所述接入定时器相对于公共时长的调整参数。
此处对应关系信息指示的对应关系的相关解释，可以参见前述实施例，此处就不再重复了。
示例性地，所述调整参数包括：
偏移量；和/或，缩放比例。
在一个实施例中，公共时长：根据所述目标卫星的星历信息确定的所述目标卫星经过预设小区的第一参考位置的预测时刻，和所述预设时刻之间的时长。
示例性地，公共时长可为：当前面向发送所述辅助信息的小区内的所有UE和/或位于预设小区内的所有UE的。
示例性地，所述预设时刻包括：
当前时刻；
或者，
服务链路更换配置的接收时刻。
此时的当前时刻可为：公共时长的时长信息的广播时刻或者UE接收到时长信息的时刻。
此处的服务链路更换配置可为指示UE进行服务链路更换的配置信息，UE接收到服务链路更换配置的时刻也可为对公共时长进行计时的预设时刻。
在一个实施例中，所述目标卫星的覆盖区域的变化信息，包括：所述目标卫星依次经过的多个所述覆盖区域的区域信息的序列。
示例性地，区域信息包括以下至少之一：
所述区域信息可以表示为以下至少之一：
极坐标系的极点位置的位置信息及所述极坐标系的轴向方向、及所述覆盖区域在所述极坐标系内的极坐标；
所述覆盖区域的经纬度；
所述覆盖区域在世界坐标系内的坐标；
所述覆盖区域的基准位置的位置信息和基准距离的距离信息。
在一个实施例中，所述极点位置包括：所述预设小区的小区中心；和/或，所述轴向方向包括：所述卫星的运动方向往地面的投影方向。
在一个实施例中，所述基准位置，包括：所述目标卫星对所述预设小区的首个覆盖位置；和/或，所述基准距离包括：所述卫星的覆盖区域的离基准位置的最近距离、所述卫星的覆盖区域的离基准位置的最远距离。
在一个实施例中，所述发送供UE接入NTN网络的辅助信息，包括：发送包含所述辅助信息的广播消息；或者，发送包含所述辅助信息的无线资源控制RRC消息。
如图6所示，本公开实施例提供一种接入装置，其中，应用于UE中，包括：
接收模块610，被配置为接收所述UE接入NTN网络的辅助信息；
确定模块620，被配置为根据UE的位置信息和所述辅助信息，确定接入目标卫星的时间信息。
在一个实施例中，所述接收模块610和所述确定模块620包括但不限于程序模块；所述程序模块被处理器执行之后，能够接收到接入NTN网络的辅助信息，结合UE自身的位置信息和辅助信息，确定接入目标卫星的时间信息。
在一个实施例中，所述接收模块610和所述确定模块620包括但不限于软硬结合模块；所述软硬结合模块包括但不限于各种可编程阵列；所述可编程阵列可包括：复杂可编程阵列和/或现场可编程阵列。
在另一个实施例中，所述接收模块610和确定模块620包括还可为纯硬件模块；所述纯硬件模块；包括但不限于：专用集成电路。
在一个实施例中，所述辅助信息包括以下至少之一：
预设小区的小区标识；其中，所述预设小区为：所述UE接入所述目标卫星时所在的小区；
所述目标卫星的覆盖区域的变化信息；
所述变化信息与接入时间参数之间的对应关系信息；其中，所述接入时间参数，指示所述UE在所述预设小区内接入所述目标卫星的时间参数；
接入所述目标卫星的接入定时器的启动时刻信息；
公共时长的时长信息；其中，所述公共时长包括：从预设时刻开始到所述目标卫星经过预设小区的第一参考位置的预测时刻之间的时长；
参考点信息，是预设小区的第二参考位置的位置信息。
在一个实施例中，所述变化信息与接入时间参数之间的对应关系信息，指示以下至少之一：
所述目标卫星的覆盖区域与接入时刻的对应关系；
所述目标卫星的覆盖区域与接入定时器的定时时长的对应关系；
所述目标卫星的覆盖区域与接入定时器的调整参数的对应关系；其中，所述调整参数，指示所述接入定时器相对于公共时长的调整参数。
在一个实施例中，所述调整参数包括：
偏移量；和/或，缩放比例。
在一个实施例中，公共时长：根据所述目标卫星的星历信息确定的所述目标卫星经过预设小区的第一参考位置的预测时刻，和所述预设时刻之间的时长。
在一个实施例中，所述预设时刻包括：
当前时刻；
或者，
服务链路更换配置的接收时刻。
在一个实施例中，所述目标卫星的覆盖区域的变化信息，包括：
所述目标卫星依次经过的多个所述覆盖区域的区域信息的序列。
在一个实施例中，所述区域信息可以表示为以下至少之一：
极坐标系的极点位置的位置信息及所述极坐标系的轴向方向、及所述覆盖区域在所述极坐标系内的极坐标；
所述覆盖区域的经纬度；
所述覆盖区域在世界坐标系内的坐标；
所述覆盖区域的基准位置的位置信息和基准距离的距离信息。
在一个实施例中，所述极点位置包括：所述预设小区的小区中心；
和/或，
所述轴向方向包括：所述卫星的运动方向往地面的投影方向。
在一个实施例中，所述基准位置，包括：所述目标卫星对所述预设小区的首个覆盖位置；
和/或，
所述基准距离包括：所述卫星的覆盖区域的离基准位置的最近距离、所述卫星的覆盖区域的离基准位置的最远距离。
在一个实施例中，所述确定模块620，被配置为响应于所述辅助信息包括所述变化信息与接入时间参数之间的对应关系信息，根据所述UE的位置信息确定出所述UE位于所述预设小区的所述目标卫星的覆盖区域内，根据所述接入时间参数确定接入到所述目标卫星的时间信息。
在一个实施例中，所述确定模块620，被配置执行以下至少之一：
响应于所述对应关系信息指示所述目标卫星的覆盖区域与接入时刻的对应关系，根据所述UE的位置信息确定出所述UE位于所述预设小区的所述目标卫星的覆盖区域内，确定在所述接入时刻发起接入所述目标卫星的接入请求；
响应于所述对应关系信息指示：所述目标卫星的覆盖区域与接入定时器的定时时长的对应关系，根据所述UE的位置信息确定出所述UE位于所述预设小区的所述目标卫星的覆盖区域内，确定在所述接入定时器的超时时发起接入所述目标卫星的接入请求；
响应于所述对应关系信息指示：所述目标卫星的覆盖区域与接入定时器的调整参数的对应关系，根据所述UE的位置信息确定出所述UE位于所述预设小区的所述目标卫星的覆盖区域内，根据所述 公共时长及所述调整参数，确定所述接入定时器的定时时长，并确定在所述接入定时器超时时发起接入所述目标卫星的接入请求。
在一个实施例中，所述确定模块620，被配置为响应于所述辅助信息包括所述目标卫星的覆盖区域的变化信息，根据所述UE的位置信息与所述所述目标卫星的覆盖区域的变化信息，确定出所述UE位于所述预设小区内所述目标卫星的覆盖区域，根据多个所述目标卫星的覆盖区域之间的接入时间偏移量和至少一个所述覆盖区域的接入时间，确定在所述预设小区接入所述目标卫星的时间信息；
或者，
响应于所述辅助信息包括所述参考点信息，根据所述UE位置信息与所述参考点信息指示的参考位置之间相对位置关系，确定所述UE在所述预设小区内接入所述目标卫星的时间信息。
在一个实施例中，所述在所述预设小区接入所述目标卫星的时间信息包括以下：
在所述预设小区内接入所述目标卫星的绝对时间信息；
在所述预设小区内接入所述目标卫星的接入定时器的定时器信息；
在所述预设小区内接入所述目标卫星的接入定时器的定时时长相对于所述公共时长的调整参数。
在一个实施例中，所述确定模块620，被配置为根据所述UE的位置信息确定出所述UE位于预设小区内，根据所述辅助信息包含的接入定时器的启动时刻信息启动所述接入定时器；在所述接入定时器超时时，在所述预设小区内接入所述目标卫星。
在一个实施例中，所述装置还包括：
启动模块，被配置为响应于所述辅助信息不包含所述接入定时器的启动时刻信息，在接收到所述目标卫星的配置信息时，启动接入定时器；
所述确定模块620，被配置为根据所述辅助信息确定的所述接入定时器的时长在所述接入定时器超时时，根据所述UE的位置信息确定出所述UE位于预设小区内，在所述预设小区内接入所述目标卫星。
在一个实施例中，所述绝对时间信息指示的绝对时刻包括：协调世界时间UTC。
在一个实施例中，所述接收模块610，被配置为接收包含所述辅助信息的广播消息；或，接收包含所述辅助信息的无线资源控制RRC消息。
如图7所示，本公开实施例提供一种辅助信息处理装置，其中，应用于网络侧，所述方法包括：
发送模块710，被配置为发送供UE接入NTN网络的辅助信息，其中，所述辅助信息，用于供UE根据自身的位置信息确定在预设小区内接入目标卫星的时间信息。
该辅助信息处理装置可为应用于NTN网络的接入设备中。该NTN的接入设备包括但不限于卫星。
在一个实施例中，所述发送模块710包括但不限于程序模块；所述程序模块被处理器执行之后， 能够发送供UE确定接入到NTN网络的目标卫星的时间信息的辅助信息。
在一个实施例中，所述发送模块710包括但不限于软硬结合模块；所述软硬结合模块包括但不限于各种可编程阵列；所述可编程阵列可包括：复杂可编程阵列和/或现场可编程阵列。
在另一个实施例中，所述发送模块710包括还可为纯硬件模块；所述纯硬件模块；包括但不限于：专用集成电路。
在一个实施例中，所述辅助信息包括以下至少之一：
预设小区的小区标识；其中，所述预设小区为：所述UE接入所述目标卫星时所在的小区；
所述目标卫星的覆盖区域的变化信息；
所述变化信息与接入时间参数之间的对应关系信息；其中，所述接入时间参数，指示所述UE在所述预设小区内接入所述目标卫星的时间参数；
接入所述目标卫星的接入定时器的启动时刻信息；
公共时长的时长信息；其中，所述公共时长包括：从预设时刻开始到所述目标卫星经过预设小区的第一参考位置的预测时刻之间的时长；
参考点信息，是预设小区的第二参考位置的位置信息。
在一个实施例中，所述变化信息与接入时间参数之间的对应关系信息，指示以下至少之一：
所述目标卫星的覆盖区域与接入时刻的对应关系；
所述目标卫星的覆盖区域与接入定时器的定时时长的对应关系；
所述目标卫星的覆盖区域与接入定时器的调整参数的对应关系；其中，所述调整参数，指示所述接入定时器相对于公共时长的调整参数。
在一个实施例中，所述调整参数包括：
偏移量；和/或，缩放比例。
在一个实施例中，公共时长：根据所述目标卫星的星历信息确定的所述目标卫星经过预设小区的第一参考位置的预测时刻，和所述预设时刻之间的时长。
在一个实施例中，所述预设时刻包括：
当前时刻；
或者，
服务链路更换配置的接收时刻。
在一个实施例中，所述目标卫星的覆盖区域的变化信息，包括：
所述目标卫星依次经过的多个所述覆盖区域的区域信息的序列。
在一个实施例中，区域信息包括以下至少之一：
所述区域信息可以表示为以下至少之一：
极坐标系的极点位置的位置信息及所述极坐标系的轴向方向、及所述覆盖区域在所述极坐标系内的极坐标；
所述覆盖区域的经纬度；
所述覆盖区域在世界坐标系内的坐标；
所述覆盖区域的基准位置的位置信息和基准距离的距离信息。
在一个实施例中，所述极点位置包括：所述预设小区的小区中心；
和/或，
所述轴向方向包括：所述卫星的运动方向往地面的投影方向。
在一个实施例中，所述基准位置，包括：所述目标卫星对所述预设小区的首个覆盖位置；
和/或，
所述基准距离包括：所述卫星的覆盖区域的离基准位置的最近距离、所述卫星的覆盖区域的离基准位置的最远距离。
在一个实施例中，所述发送模块710，被配置为发送包含所述辅助信息的广播消息；或，发送包含所述辅助信息的无线资源控制RRC消息。
考虑到地面移动小区的场景的服务链路切换中，下一个目标卫星是固定的，所以此卫星的覆盖范围的变化网络也是可知的。
本公开实施例针对上述场景，提出了一种增强的基于时间/定时器触发UE接入目标卫星的方法，考虑到UE的隐私和性能开销，在本方案中UE无需上报自己的位置信息，UE基于自己所处的区域确定接入时间参数，基于此参数触发接入目标卫星的流程。
考虑到可能存在UE无法获取或不允许获取某些卫星的星历信息的情况，基于本公开实施例所提出的区域位置配置方案，UE无需获取卫星的星历信息。
UE根据自己的位置信息以及网络提供的辅助信息来确定UE发起接入目标卫星流程的时间。
辅助信息至少包括以下之一：
目标卫星的经过的UE所在小区的小区ID；
区域信息，所述区域信息用于UE确定自身所处区域；多个区域信息将组成前述实施例提供的变化信息。
区域与接入时间参数的对应关系，所述区域与接入时间参数的对应关系用于UE根据自身所在区域确定接入目标卫星的时间参数；
定时器启动时刻T0，所述定时器启动时刻用于UE确定定时器的启动时刻；
公共时长,所述公共时长用于UE根据定时器调整参数调整公共时长生成UE特定的定时器,从而触发UE接入目标卫星的流程；
位置参考点，所述位置参考点用于UE获得自身位置与参考点的相对位置关系。
在一个实施例中，所述区域与接入时间参数的对应关系可以包括以下至少之一：
区域与接入时刻的对应关系，所述区域与接入时刻的对应关系指位于此区域UE发起接入目标卫星的流程的绝对时刻；
区域与接入定时器时长的对应关系，所述区域与接入定时器时长的对应关系指位于此区域UE发起接入目标卫星的流程对应的定时器时长；
区域与接入定时器调整参数的对应关系，所述区域与接入定时器调整参数的对应关系指位于此区域UE发起接入目标卫星的流程对应的定时器调整参数。
在一个实施例中，所述区域信息可以由以下方式确定：
所述区域可以由网络以某一位置为极点，以某一固定方向为极轴方向的极坐标系来确定,极点位置包括但不限于小区的中心点。极轴方向可以为卫星运动方向在地面上的投影，也可以为其他任何方向。网络广播极坐标系位置，即极点位置和极轴方向。网络广播各个区域位置对应的极角的范围，以及参考距离。
所述区域也可以由网络通过一组地面上的经纬度或者一组固定的坐标来确定；
所述区域也可以由网络通过基准位置与基准距离来确定，以基准位置为圆心，以基准距离为半径构成相应的区域。所述基准位置可以为目标卫星最先覆盖预设小区的位置。
在一个实施例中，所述公共时长由网络根据卫星的星历信息以及以小区内某一位置作为参考位置来确定，用于配置公共时长的参考位置可以为小区中心点，也可以为小区内其他位置。
在一个实施例中，所述辅助信息可以通过系统广播或RRC消息提供给UE。
在一个实施例中，响应于所述区域与接入时间参数的对应关系为：区域与接入时刻的对应关系，则网络需要在区域与接入时刻的对应关系中的最早的绝对时刻前给UE配置目标卫星小区对应的接入配置。
在一个实施例中，响应于响应于所述区域与接入时间参数的对应关系为：区域与接入定时器时长的对应关系，或者，区域与接入定时器调整参数的对应关系，且若辅助信息中包含定时器启动时刻T0，网络需要在T0时刻前给UE配置目标卫星小区对应的接入配置。
UE接收到辅助信息之后，结合自身的位置信息，执行接入操作。
若网络提供了区域信息和区域与接入时刻的对应关系，对于不同类型的区域与接入时刻的对应关系，执行的接入操作不同。
例如，UE接收到辅助信息之后结合自身的位置信息执行接入操作，可包括以下至少之一：
响应于所述区域与接入时间参数的对应关系为：区域与接入时刻的对应关系，UE获取所在区域对应的绝对时刻，基于此时刻发起接入目标卫星的流程；
响应于所述区域与接入时间参数的对应关系为：区域与接入定时器时长的对应关系，UE获取所在区域对应的定时器时长，基于此定时器触发UE接入目标卫星的流程；
响应于所述区域与接入时间参数的对应关系为：区域与定时器调整参数的对应关系，UE获取所在区域对应的定时器调整参数，调整公共的定时器，获得此UE对应的用于触发接入目标卫星的定时器，基于此定时器触发UE接入目标卫星的流程。
若网络提供了区域信息，未提供区域与接入时刻的对应关系，UE根据自己所处的区域确定接入卫星的绝对时刻、或定时器时长、或定时器缩放参数。在这种情况下，网络提供了公共时长。
若网络提供了位置参考点，UE根据自身位置与参考点的相对位置关系确定接入卫星的绝对时刻、或定时器时长、或定时器缩放参数，在这种情况下，网络提供了公共时长。
在一个实施例中，若UE基于定时器触发接入目标卫星小区的流程，则执行的接入操作可包括以下至少之一：
若网络提供了定时器启动时刻T0，UE在到达T0时刻时启动定时器，当此定时器超时，触发UE接入目标卫星的流程；
若网络未提供定时器启动时刻T0，UE在接收到接入目标卫星相应配置的系统消息或RRC消息时，启动此定时器，当此定时器超时，触发UE接入目标卫星的流程；
响应于所述区域与接入时间参数的对应关系为：区域与接入时刻的对应关系，若UE基于绝对时刻发起接入目标卫星小区的流程，则当此时刻到达时，基于此时刻发起接入目标卫星的流程。
在一个实施例中，所述绝对时刻可以为UTC时间；
若所述区域由网络的某一个位置为极点，以某一个固定方向为极轴方向的极坐标系来确定，则UE按照网络提供的区域对应的极角范围从小到大的顺序依次判断是否属于此区域内，如图8A、图8B至图8C所示：
当区域对应的极角范围小于或等于π时，UE通过判断自身所处位置是否在网络配置的某一区域对应的极角范围内，且UE所在位置与极点的连接线段在区域所在角度的角平分线上的投影大于或等于参考距离，则判断UE位于此区域内，否则，判断UE不位于此区域内；
当极角范围大于π时，UE通过判断自身所处位置是否在网络配置的某一区域对应的极角范围内，或UE所在位置与极点的连接线段在区域所在角度的角平分线上的投影小于或等于参考距离，则判断UE位于此区域内，否则，判断UE不位于此区域内。如图8A所示，服务卫星(Satellite，SA)0覆盖地面固定的预设小区，随着时间从T1、经过T2向T3移动，目标卫星SA1逐步靠近预设小区并覆盖预设小区。图8B和8C可见，目标卫星SA1对预设小区的覆盖范围逐步增大。覆盖区域的大小，在图8B和图8C中体现为表示预设小区内的灰色填充部分。SA1对预设小区的覆盖角度从角度δd到θ。本公开实施例还提供另一个UE接入方法，具体可如下：
网络广播公共时长为100ms，定时器启动时刻T0为：2020年12月3日12:00:00:00，目标卫星小区ID为：Cell 1
网络广播区域范围信息如下表1：
Figure PCTCN2021070359-appb-000001
表1
UE获取自身位置，并用网络广播的极坐标系来表示，为(π/4,212.1)。
上述表1为一个示例性的举例，表1中的任意一个元素可以单独使用或者组合使用。
UE按照极角范围从小到大的顺序来判断自身是否位于所在区域，即从A～F的顺序，首先判断UE不在A区域的极角范围内，所以UE不在A区域，判断UE位于B区域的极角范围，且UE所在位置与极点的连接线段在区域所在角度的角平分线上的投影线段的长度为150，小于200，故UE位于B区域内，对应的定时器调整参数为0.4，UE对应的接入定时器为40ms
网络在T0时刻前，预先通过RRC消息提供UE接入目标卫星小区的配置；
在T0时刻时，UE启动调整后的定时器，当此定时器超时，触发UE接入目标卫星的流程；
本公开实施例提供一种通信设备，包括：
用于存储处理器可执行指令的存储器；
处理器，分别存储器连接；
其中，处理器被配置为执行前述任意技术方案提供的接入方法和/或辅助信息处理方法。
处理器可包括各种类型的存储介质，该存储介质为非临时性计算机存储介质，在通信设备掉电之后能够继续记忆存储其上的信息。
这里，所述通信设备包括基站或UE。
所述处理器可以通过总线等与存储器连接，用于读取存储器上存储的可执行程序，例如，如图3和/或图5所示的方法的至少其中之一。
图9是根据一示例性实施例示出的一种UE(UE)800的框图。例如，UE800可以是移动电话，计算机，数字广播用户设备，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图9，UE800可以包括以下一个或多个组件：处理组件802，存储器804，电源组件806，多媒体组件808，音频组件810，输入/输出(I/O)的接口812，传感器组件814，以及通信组件816。
处理组件802通常控制UE800的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件802可以包括一个或多个处理器820来执行指令，以完成上述的方法的全部或部分步骤。此外，处理组件802可以包括一个或多个模块，便于处理组件802和其他组件之间的交互。例如，处理组件802可以包括多媒体模块，以方便多媒体组件808和处理组件802之间的交互。
存储器804被配置为存储各种类型的数据以支持在UE800的操作。这些数据的示例包括用于在UE800上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器804可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电源组件806为UE800的各种组件提供电力。电源组件806可以包括电源管理系统，一个或多个电源，及其他与为UE800生成、管理和分配电力相关联的组件。
多媒体组件808包括在所述UE800和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件808包括一个前置摄像头和/或后置摄像头。当UE800处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件810被配置为输出和/或输入音频信号。例如，音频组件810包括一个麦克风(MIC)，当UE800处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器804或经由通信组件816发送。在一些实施例中，音频组件810还包括一个扬声器，用于输出音频信号。
I/O接口812为处理组件802和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件814包括一个或多个传感器，用于为UE800提供各个方面的状态评估。例如，传感器组件814可以检测到设备800的打开/关闭状态，组件的相对定位，例如所述组件为UE800的显示器和小键盘，传感器组件814还可以检测UE800或UE800一个组件的位置改变，用户与UE800接触的存在或不存在，UE800方位或加速/减速和UE800的温度变化。传感器组件814可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件814还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件814还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件816被配置为便于UE800和其他设备之间有线或无线方式的通信。UE800可以接入基于通信标准的无线网络，如WiFi，2G或3G、4G、5G、6G，或它们的组合。在一个示例性实施例中，通信组件816经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件816还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，UE800可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器804，上述指令可由UE800的处理器820执行以完成上述方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
如图10所示，本公开一实施例示出一种基站的结构。例如，接入设备900可以被提供为一网络 侧设备。NTN网络的卫星即为接入设备900的一种。
参照图10，接入设备900包括处理组件922，其进一步包括一个或多个处理器，以及由存储器932所代表的存储器资源，用于存储可由处理组件922的执行的指令，例如应用程序。存储器932中存储的应用程序可以包括一个或一个以上的每一个对应于一组指令的模块。此外，处理组件922被配置为执行指令，以执行上述方法前述应用在所述基站的任意方法，例如，如图2、图3、图9和/或图10所示方法。
接入设备900还可以包括一个电源组件926被配置为执行接入设备900的电源管理，一个有线或无线网络接口950被配置为将接入设备900连接到网络，和一个输入输出(I/O)接口958。接入设备900可以操作基于存储在存储器932的操作系统，例如Windows Server TM，Mac OS XTM，UnixTM，LinuxTM，FreeBSDTM或类似。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本发明的其它实施方案。本公开旨在涵盖本发明的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本发明的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本发明的真正范围和精神由下面的权利要求指出。
应当理解的是，本发明并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本发明的范围仅由所附的权利要求来限制。

Claims (34)

  1. 一种接入方法，其中，应用于用户设备UE中，包括：
    接收所述UE接入NTN网络的辅助信息；
    根据UE的位置信息和所述辅助信息，确定接入目标卫星的时间信息。
  2. 根据权利要求1所述的方法，其中，所述辅助信息包括以下至少之一：
    预设小区的小区标识；其中，所述预设小区为：所述UE接入所述目标卫星时所在的小区；
    所述目标卫星的覆盖区域的变化信息；
    所述变化信息与接入时间参数之间的对应关系信息；其中，所述接入时间参数，指示所述UE在所述预设小区内接入所述目标卫星的时间参数；
    接入所述目标卫星的接入定时器的启动时刻信息；
    公共时长的时长信息；其中，所述公共时长包括：从预设时刻开始到所述目标卫星经过预设小区的第一参考位置的预测时刻之间的时长；
    参考点信息，是预设小区的第二参考位置的位置信息。
  3. 根据权利要求2所述的方法，其中，所述变化信息与接入时间参数之间的对应关系信息，指示以下至少之一：
    所述目标卫星的覆盖区域与接入时刻的对应关系；
    所述目标卫星的覆盖区域与接入定时器的定时时长的对应关系；
    所述目标卫星的覆盖区域与接入定时器的调整参数的对应关系；其中，所述调整参数，指示所述接入定时器相对于公共时长的调整参数。
  4. 根据权利要求3所述的方法，其中，所述调整参数包括：
    偏移量；和/或，缩放比例。
  5. 根据权利要求3所述的方法，其中，
    公共时长：根据所述目标卫星的星历信息确定的所述目标卫星经过预设小区的第一参考位置的预测时刻，和所述预设时刻之间的时长。
  6. 根据权利要求2或5所述的方法，其中，所述预设时刻包括：
    当前时刻；
    或者，
    服务链路更换配置的接收时刻。
  7. 根据权利要求2所述的方法，其中，所述目标卫星的覆盖区域的变化信息，包括：
    所述目标卫星依次经过的多个所述覆盖区域的区域信息的序列。
  8. 根据权利要求7所述的方法，其中，所述区域信息可以表示为以下之一：
    极坐标系的极点位置的位置信息及所述极坐标系的轴向方向、及所述覆盖区域在所述极坐标系内的极坐标；
    所述覆盖区域的经纬度；
    所述覆盖区域在世界坐标系内的坐标；
    所述覆盖区域的基准位置的位置信息和基准距离的距离信息。
  9. 根据权利要求8所述的方法，其中，所述极点位置包括：所述预设小区的小区中心；
    和所述轴向方向包括：所述卫星的运动方向往地面的投影方向。
  10. 根据权利要求8或9所述的方法，其中，所述基准位置，包括：所述目标卫星对所述预设小区的首个覆盖位置；
    或，
    所述基准距离包括：所述卫星的覆盖区域的离基准位置的最近距离、所述卫星的覆盖区域的离基准位置的最远距离。
  11. 根据权利要求2至10任一项所述的方法，其中，
    所述根据UE的位置信息和所述辅助信息，确定接入目标卫星的时间信息，包括：
    响应于所述辅助信息包括所述变化信息与接入时间参数之间的对应关系信息，根据所述UE的位置信息确定出所述UE位于所述预设小区的所述目标卫星的覆盖区域内，根据所述接入时间参数确定接入到所述目标卫星的时间信息。
  12. 根据权利要求11所述的方法，其中，所述响应于所述辅助信息包括所述变化信息与接入时间参数之间的对应关系信息，根据所述UE的位置信息确定出所述UE位于所述预设小区的所述目标卫星的覆盖区域内，根据所述接入时间参数确定接入到所述目标卫星的时间信息，包括以下至少之一：
    响应于所述对应关系信息指示所述目标卫星的覆盖区域与接入时刻的对应关系，根据所述UE的位置信息确定出所述UE位于所述预设小区的所述目标卫星的覆盖区域内，确定在所述接入时刻发起接入所述目标卫星的接入请求；
    响应于所述对应关系信息指示：所述目标卫星的覆盖区域与接入定时器的定时时长的对应关系，根据所述UE的位置信息确定出所述UE位于所述预设小区的所述目标卫星的覆盖区域内，确定在所述接入定时器超时时发起接入所述目标卫星的接入请求；
    响应于所述对应关系信息指示：所述目标卫星的覆盖区域与接入定时器的调整参数的对应关系，根据所述UE的位置信息确定出所述UE位于所述预设小区的所述目标卫星的覆盖区域内，根据所述公共时长及所述调整参数，确定所述接入定时器的定时时长，并确定在所述接入定时器超时时发起接入所述目标卫星的接入请求。
  13. 根据权利要求2至10任一项所述的方法，其中，所述根据UE的位置信息和所述辅助信息，确定接入目标卫星的时间信息，包括：
    响应于所述辅助信息包括所述目标卫星的覆盖区域的变化信息，根据所述UE的位置信息与所述所述目标卫星的覆盖区域的变化信息，确定出所述UE位于所述预设小区内所述目标卫星的覆盖区域，根据多个所述目标卫星的覆盖区域之间的接入时间偏移量和至少一个所述覆盖区域的接入时 间，确定在所述预设小区接入所述目标卫星的时间信息；
    或者，
    响应于所述辅助信息包括所述参考点信息，根据所述UE位置信息与所述参考点信息指示的参考位置之间相对位置关系，确定所述UE在所述预设小区内接入所述目标卫星的时间信息。
  14. 根据权利要求13所述的方法，其中，所述在所述预设小区接入所述目标卫星的时间信息包括以下：
    在所述预设小区内接入所述目标卫星的绝对时间信息；
    在所述预设小区内接入所述目标卫星的接入定时器的定时器信息；
    在所述预设小区内接入所述目标卫星的接入定时器的定时时长相对于所述公共时长的调整参数。
  15. 根据权利要求2至10任一项所述的方法，其中，所述根据UE的位置信息和所述辅助信息，确定接入目标卫星的时间信息，包括：
    根据所述UE的位置信息确定出所述UE位于预设小区内，根据所述辅助信息包含的接入定时器的启动时刻信息启动所述接入定时器；
    在所述接入定时器超时时，在所述预设小区内接入所述目标卫星。
  16. 根据权利要求2所述的方法，其中，所述方法还包括：
    响应于所述辅助信息不包含所述接入定时器的启动时刻信息，在接收到所述目标卫星的配置信息时，启动接入定时器；
    所述根据UE的位置信息和所述辅助信息，确定接入目标卫星的时间信息，包括：
    根据所述辅助信息确定的所述接入定时器的时长在所述接入定时器超时时，根据所述UE的位置信息确定出所述UE位于预设小区内，在所述预设小区内接入所述目标卫星。
  17. 一种辅助信息处理方法，其中，应用于网络侧，所述方法包括：
    发送供UE接入NTN网络的辅助信息，其中，所述辅助信息，用于供UE根据自身的位置信息确定在预设小区内接入目标卫星的时间信息。
  18. 根据权利要求17所述的方法，其中，所述辅助信息包括以下至少之一：
    预设小区的小区标识；其中，所述预设小区为：所述UE接入所述目标卫星时所在的小区；
    所述目标卫星的覆盖区域的变化信息；
    所述变化信息与接入时间参数之间的对应关系信息；其中，所述接入时间参数，指示所述UE在所述预设小区内接入所述目标卫星的时间参数；
    接入所述目标卫星的接入定时器的启动时刻信息；
    公共时长的时长信息；其中，所述公共时长包括：从预设时刻开始到所述目标卫星经过预设小区的第一参考位置的预测时刻之间的时长；
    参考点信息，是预设小区的第二参考位置的位置信息。
  19. 根据权利要求18所述的方法，其中，
    所述变化信息与接入时间参数之间的对应关系信息，指示以下至少之一：
    所述目标卫星的覆盖区域与接入时刻的对应关系；
    所述目标卫星的覆盖区域与接入定时器的定时时长的对应关系；
    所述目标卫星的覆盖区域与接入定时器的调整参数的对应关系；其中，所述调整参数，指示所述接入定时器相对于公共时长的调整参数。
  20. 根据权利要求19所述的方法，其中，所述调整参数包括：
    偏移量；和/或，缩放比例。
  21. 根据权利要求19所述的方法，其中，公共时长：根据所述目标卫星的星历信息确定的所述目标卫星经过预设小区的第一参考位置的预测时刻，和所述预设时刻之间的时长。
  22. 根据权利要求19或21所述的方法，所述预设时刻包括：
    当前时刻；
    或者，
    服务链路更换配置的接收时刻。
  23. 根据权利要求19所述的方法，其中，所述目标卫星的覆盖区域的变化信息，包括：
    所述目标卫星依次经过的多个所述覆盖区域的区域信息的序列。
  24. 根据权利要求23所述的方法，其中，区域信息包括以下至少之一：
    所述区域信息可以表示为以下至少之一：
    极坐标系的极点位置的位置信息及所述极坐标系的轴向方向、及所述覆盖区域在所述极坐标系内的极坐标；
    所述覆盖区域的经纬度；
    所述覆盖区域在世界坐标系内的坐标；
    所述覆盖区域的基准位置的位置信息和基准距离的距离信息。
  25. 根据权利要求24所述的方法，其中，所述极点位置包括：所述预设小区的小区中心；
    和
    所述轴向方向包括：所述卫星的运动方向往地面的投影方向。
  26. 根据权利要求25或25所述的方法，其中，所述基准位置，包括：所述目标卫星对所述预设小区的首个覆盖位置；
    或，
    所述基准距离包括：所述卫星的覆盖区域的离基准位置的最近距离、所述卫星的覆盖区域的离基准位置的最远距离。
  27. 一种接入装置，其中，应用于UE中，包括：
    接收模块，被配置为接收所述UE接入NTN网络的辅助信息；
    确定模块，被配置为根据UE的位置信息和所述辅助信息，确定接入目标卫星的时间信息。
  28. 根据权利要求27所述的装置，其中，所述辅助信息包括以下至少之一：
    预设小区的小区标识；其中，所述预设小区为：所述UE接入所述目标卫星时所在的小区；
    所述目标卫星的覆盖区域的变化信息；
    所述变化信息与接入时间参数之间的对应关系信息；其中，所述接入时间参数，指示所述UE在所述预设小区内接入所述目标卫星的时间参数；
    接入所述目标卫星的接入定时器的启动时刻信息；
    公共时长的时长信息；其中，所述公共时长包括：从预设时刻开始到所述目标卫星经过预设小区的第一参考位置的预测时刻之间的时长；
    参考点信息，是预设小区的第二参考位置的位置信息。
  29. 根据权利要求28所述的装置，其中，所述变化信息与接入时间参数之间的对应关系信息，指示以下至少之一：
    所述目标卫星的覆盖区域与接入时刻的对应关系；
    所述目标卫星的覆盖区域与接入定时器的定时时长的对应关系；
    所述目标卫星的覆盖区域与接入定时器的调整参数的对应关系；其中，所述调整参数，指示所述接入定时器相对于公共时长的调整参数。
  30. 一种辅助信息处理装置，其中，应用于网络侧，所述方法包括：
    发送模块，被配置为发送供UE接入NTN网络的辅助信息，其中，所述辅助信息，用于供UE根据自身的位置信息确定在预设小区内接入目标卫星的时间信息。
  31. 根据权利要求30所述的装置，其中，所述辅助信息包括以下至少之一：
    预设小区的小区标识；其中，所述预设小区为：所述UE接入所述目标卫星时所在的小区；
    所述目标卫星的覆盖区域的变化信息；
    所述变化信息与接入时间参数之间的对应关系信息；其中，所述接入时间参数，指示所述UE在所述预设小区内接入所述目标卫星的时间参数；
    接入所述目标卫星的接入定时器的启动时刻信息；
    公共时长的时长信息；其中，所述公共时长包括：从预设时刻开始到所述目标卫星经过预设小区的第一参考位置的预测时刻之间的时长；
    参考点信息，是预设小区的第二参考位置的位置信息。
  32. 根据权利要求31所述的装置，其中，
    所述变化信息与接入时间参数之间的对应关系信息，指示以下至少之一：
    所述目标卫星的覆盖区域与接入时刻的对应关系；
    所述目标卫星的覆盖区域与接入定时器的定时时长的对应关系；
    所述目标卫星的覆盖区域与接入定时器的调整参数的对应关系；其中，所述调整参数，指示所述接入定时器相对于公共时长的调整参数。
  33. 一种通信设备，包括处理器、收发器、存储器及存储在存储器上并能够有所述处理器运行的可执行程序，其中，所述处理器运行所述可执行程序时执行如权利要求1至16或17至26任一项 提供的方法。
  34. 一种计算机存储介质，所述计算机存储介质存储有可执行程序；所述可执行程序被处理器执行后，能够实现如权利要求1至16或17至26任一项提供的方法。
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