WO2022121680A1 - 窗口偏移量确定方法与装置、终端和网络设备 - Google Patents

窗口偏移量确定方法与装置、终端和网络设备 Download PDF

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Publication number
WO2022121680A1
WO2022121680A1 PCT/CN2021/132472 CN2021132472W WO2022121680A1 WO 2022121680 A1 WO2022121680 A1 WO 2022121680A1 CN 2021132472 W CN2021132472 W CN 2021132472W WO 2022121680 A1 WO2022121680 A1 WO 2022121680A1
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Prior art keywords
information
terminal
current
mapping relationship
timing advance
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PCT/CN2021/132472
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English (en)
French (fr)
Inventor
雷珍珠
赵思聪
周化雨
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Spreadtrum Semiconductor Nanjing Co Ltd
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Spreadtrum Semiconductor Nanjing Co Ltd
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Priority to EP21902387.6A priority Critical patent/EP4258777A4/en
Priority to US18/256,296 priority patent/US20240040527A1/en
Publication of WO2022121680A1 publication Critical patent/WO2022121680A1/zh
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
    • 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
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18519—Operations control, administration or maintenance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/06—Airborne or Satellite Networks

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a method and apparatus for determining a window offset, a terminal, and a network device.
  • the 3rd Generation Partnership Project (3GPP) is developing protocol standards for non-terrestrial network (NTN) communications, and the protocol standards mainly involve spaceborne vehicles or airborne equipment.
  • airborne vehicle such as geostationary earth orbit satellites, low earth orbit satellites, highly elliptical orbit satellites, high-altitude platform stations (HAPS), etc.
  • the satellites in the NTN communication system usually generate beams (beams, or beam footprints) or cells on the ground, and the satellites move continuously along a fixed orbit, they are located in the above beams. Or the propagation distance (or propagation delay) between the terminal in the cell and the satellite will change with the position of the satellite, which will cause the terminal to delay starting the preconfigure uplink resource (PUR) every time.
  • the duration (ie offset) of the corresponding downlink search space window (PUR searchspacewindow, PUR SS Window) will also change continuously. In this case, how to determine the offset of each delay to start the PUR SS Window requires further research.
  • the embodiments of the present application provide a method and apparatus for determining a window offset, a terminal, and a network device, so as to realize the adaptive adjustment of the offset of the downlink search space window corresponding to the preconfigured uplink resource between the network device and the terminal, And always ensure that the network device and the terminal reach an agreement on the offset.
  • an embodiment of the present application provides a method for determining a window offset, which is applied to a terminal in a non-terrestrial network communication system, where the non-terrestrial network communication system includes the terminal and a network device; the method includes:
  • the current window offset is determined according to the first configuration information, where the current window offset is used to indicate the offset of the downlink search space window corresponding to the currently preconfigured uplink resource that is delayed from the start time, and the start The moment is the end position of the currently preconfigured uplink resource.
  • an embodiment of the present application provides a method for determining a window offset, which is characterized in that it is applied to a network device in a non-terrestrial network communication system, where the non-terrestrial network communication system includes the network device and a terminal;
  • the methods described include:
  • Send first configuration information to the terminal where the first configuration information is used to determine a current window offset, and the current window offset is used to indicate that the downlink search space window corresponding to the currently preconfigured uplink resource starts at the start time
  • the offset of the delayed start, and the start time is the end position of the currently pre-configured uplink resource.
  • an embodiment of the present application provides an apparatus for determining a window offset, which is applied to a terminal in a non-terrestrial network communication system, where the non-terrestrial network system includes the terminal and a network device; the apparatus includes a processing unit and A communication unit, the processing unit is used for:
  • the current window offset is determined according to the first configuration information, where the current window offset is used to indicate the offset of the downlink search space window corresponding to the currently preconfigured uplink resource that is delayed from the start time, and the start The moment is the end position of the currently preconfigured uplink resource.
  • an embodiment of the present application provides an apparatus for determining a window offset, which is applied to a network device in a non-terrestrial network communication system, where the non-terrestrial network communication system includes the network device and a terminal; the apparatus includes a processing unit and communication unit, the processing unit is used for:
  • the window is delayed and started by an offset starting time, where the starting time is the end position of the currently preconfigured uplink resource.
  • an embodiment of the present application provides a terminal, including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured by the The program is executed by the processor, and the program includes instructions for executing steps in any of the methods in the first aspect of the embodiments of the present application.
  • embodiments of the present application provide a network device, including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured by Executed by the processor, the program includes instructions for executing steps in any of the methods in the second aspect of the embodiments of the present application.
  • an embodiment of the present application provides a chip, including a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the first aspect or the second aspect of the embodiment of the present application Some or all of the steps described in any method.
  • an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to execute the implementation of the present application Examples include some or all of the steps described in any of the methods of the first aspect or the second aspect.
  • an embodiment of the present application provides a computer program, wherein the computer program is operable to cause a computer to execute part or all of the steps described in any of the methods in the first aspect or the second aspect of the embodiments of the present application .
  • the computer program may be a software installation package.
  • the network device in the non-terrestrial network communication system sends the first configuration information to the terminal in the non-terrestrial network communication system; then, the terminal acquires the first configuration information, and according to the first configuration information to determine the current window offset.
  • the current window offset is used to indicate the offset of the downlink search space window corresponding to the currently preconfigured uplink resource with the start time delay, and the start time is the end position of the current preconfigured uplink resource, it is beneficial to ensure that the terminal
  • the offset of the downlink search space window will be adaptively adjusted with the constant change of the propagation distance between the terminal and the satellite each time the delay starts, so as to realize the adaptation of the offset of the downlink search space window between the network equipment and the terminal Adjust, and always ensure that the network device and the terminal reach an agreement on the offset of the downlink search space window.
  • FIG. 1 is a schematic diagram of the architecture of a non-terrestrial network communication system provided by an embodiment of the present application
  • FIG. 2 is a schematic diagram of the architecture of a transparent satellite communication system provided by an embodiment of the present application.
  • Fig. 3 is a kind of terrestrial network communication system provided in the embodiment of the present application and the non-terrestrial network communication system The structural representation of comparing signal reception quality;
  • FIG. 4 is a schematic structural diagram of an earth fixed beam scenario of a non-terrestrial network communication system provided by an embodiment of the present application;
  • FIG. 5 is a schematic diagram of an architecture comparison of a non-terrestrial network communication system provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of an offset of a downlink search space window corresponding to a preconfigured uplink resource provided by an embodiment of the present application;
  • FIG. 7 is a schematic flowchart of a method for determining a window offset provided by an embodiment of the present application.
  • FIG. 8 is a schematic flowchart of another method for determining a window offset provided by an embodiment of the present application.
  • FIG. 9 is a schematic flowchart of another method for determining a window offset provided by an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a mapping relationship between multiple RUR transmission resource blocks and multiple window offsets provided by an embodiment of the present application
  • FIG. 11 is a schematic flowchart of another method for determining a window offset provided by an embodiment of the present application.
  • FIG. 12 is a schematic flowchart of another method for determining a window offset provided by an embodiment of the present application.
  • FIG. 13 is a schematic flowchart of another method for determining a window offset provided by an embodiment of the present application.
  • FIG. 14 is a block diagram of functional units of a window offset determination device provided by an embodiment of the present application.
  • 15 is a block diagram of functional units of another window offset determination device provided by an embodiment of the present application.
  • FIG. 16 is a schematic structural diagram of a terminal provided by an embodiment of the present application.
  • FIG. 17 is a schematic structural diagram of a network device provided by an embodiment of the present application.
  • non-terrestrial network non-terrestrial network
  • NTN non-terrestrial network
  • the non-terrestrial network communication system 10 may include a terminal 110 , an intra-cell reference point 120 , a satellite 130 , a non-terrestrial network gateway (NTN gateway) 140 and a network device 150 .
  • the terminal 110, the non-terrestrial network gateway 140 and the network device 150 may be located on the earth's surface, while the satellite 130 is located in the earth's orbit.
  • the satellites 130 can provide communication services to the geographic area covered by the signal, and can communicate with the terminals 110 located within the signal coverage area.
  • the terminal 110 is located in a certain cell, and the cell includes an intra-cell reference point 120 .
  • the wireless communication link between the terminal 110 and the satellite 130 is called a service link
  • the wireless communication link between the satellite 130 and the non-terrestrial network gateway (NTN gateway) 140 is called a supply link ( feeder link).
  • NTN gateway non-terrestrial network gateway
  • the network device 150 may be integrated into the same device, or may be separate devices, which are not specifically limited.
  • the terminal in this embodiment of the present application may be a user equipment (user equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a smart Terminal, wireless communication device, user agent or user equipment.
  • UE user equipment
  • an access terminal a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a smart Terminal, wireless communication device, user agent or user equipment.
  • the terminal may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a wireless communication function handheld devices, computing devices or other processing devices connected to wireless modems, relay devices, in-vehicle devices, wearable devices, terminals in next-generation communication systems such as NR networks or future evolution of public land mobile communication networks network, PLMN), etc., which are not specifically limited.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • the terminal can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle; can be deployed on water (such as ships, etc.); can also be deployed in the air (such as aircraft, balloons and satellites, etc.).
  • the terminal may be a mobile phone (mobile phone), a tablet computer, a computer with a wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, an industrial control (industrial control) wireless terminal equipment in , autonomous driving (self driving) in-vehicle equipment, remote medical (remote medical) wireless terminal equipment, smart grid (smart grid) wireless terminal equipment, transportation safety (transportation safety) in Wireless terminal equipment, wireless terminal equipment in a smart city or wireless terminal equipment in a smart home, etc.
  • VR virtual reality
  • AR augmented reality
  • industrial control wireless terminal equipment in autonomous driving (self driving) in-vehicle equipment
  • remote medical remote medical
  • smart grid smart grid wireless terminal equipment
  • transportation safety transportation safety
  • the satellite in the embodiment of the present application may be a spacecraft carrying a bent pipe payload or a regenerative payload signal transmitter, which usually operates at an altitude between 300 and 1500 km.
  • Low Earth Orbit (LEO) Low Earth Orbit (LEO) at altitudes between 7000 and 25000km
  • High elliptical orbit (HEO) at altitudes between 50,000km.
  • the satellites may be LEO satellites, MEO satellites, GEO satellites, or HEO satellites, etc. according to different orbital altitudes.
  • the signals sent by the satellites in the embodiments of the present application generally generate one or more beams (beams, or referred to as “given service areas”) on a given service area (given service area) bounded by its field of view (field of view).
  • beams beams, or referred to as “given service areas”
  • given service area bounded by its field of view (field of view).
  • beam footprint the shape of a beam on the ground can be elliptical, and the field of view of the satellite depends on the antenna and the minimum elevation angle, etc.
  • the non-terrestrial network gateway in this embodiment of the present application may be an earth station or gateway located on the earth's surface, and can provide enough radio frequency (RF) power and RF sensitivity to connect satellites.
  • the non-terrestrial network gateway may be a transport network layer (TNL) node.
  • RF radio frequency
  • TNL transport network layer
  • the network device in the embodiment of the present application may be a base station (base transceiver station) in a global system of mobile communication (GSM) communication system or a code division multiple access (code division multiple access, CDMA) communication system.
  • BTS base stations
  • nodeB, NB wideband code division multiple access
  • WCDMA wideband code division multiple access
  • evolutional node B, eNB in long term evolution (long term evolution, LTE) communication systems or eNodeB) or a base station (gNB) in a new radio (NR) communication system.
  • the network device may also be an access point (access point, AP) in a wireless local area network (WLAN), a relay station, a network device in a future evolved PLMN network, or a network device in an NTN communication system, and the like.
  • WLAN wireless local area network
  • relay station a network device in a future evolved PLMN network
  • NTN communication system and the like.
  • the gNB may include a centralized unit (CU) and a distributed unit (DU), and the gNB may also include an active antenna unit (AAU) .
  • the CU can implement part of the functions of the gNB, and the DU can also implement part of the functions of the gNB.
  • the CU is responsible for processing non-real-time protocols and services, implementing the functions of the radio resource control (RRC) layer and the packet data convergence protocol (PDCP) layer;
  • the DU is responsible for processing physical layer protocols and real-time services.
  • RLC radio link control
  • MAC medium access control
  • PHY physical
  • the AAU implements some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, the higher-layer signaling (such as the RRC layer signaling) can be considered to be sent by the DU, or by the DU+AAU sent.
  • the network device may include one or more devices of a CU node, a DU node, and an AAU node.
  • the CU may be divided into network devices in an access network (radio access network, RAN), and the CU may also be divided into network devices in a core network (core network, CN), which is not specifically limited.
  • an embodiment of the present application provides a schematic diagram of the architecture of a communication system with a transparent satellite (transparent satellite), as shown in FIG. 2 .
  • terminals, non-terrestrial network gateways and gNBs are located on the earth's surface, while satellites are located in earth orbit.
  • satellites, non-terrestrial network gateways and gNBs can act as 5G radio access network (NG-radio access network, NG-RAN), and NG-RAN is connected to 5G core network through NG interface.
  • NG-radio access network NG-radio access network
  • NG-RAN 5G radio access network
  • NG-RAN 5G radio access network
  • NG-RAN 5G radio access network
  • NG-RAN 5G core network
  • the satellite payload implements frequency conversion and RF amplifiers in both uplink and downlink directions, and the satellite corresponds to an analog RF repeater.
  • different transparent satellites can be connected to the same gNB on the ground.
  • the satellite In the NTN communication system, the satellite usually generates one or more beams (beam, or called beam footprint) or cells on the ground, and the shape of a beam on the ground can be an ellipse.
  • the beams or cells generated on the ground by some satellites (such as LEO satellites) will also move on the ground with the movement of the satellites in their orbits; or, some satellites (such as LEO satellites or GEO satellites) are on the ground.
  • the resulting beam or cell does not move on the ground as the satellite moves in its orbit.
  • the difference in propagation distance between terminals (such as UE) in different geographical locations and the satellite is small ( That is, the path loss difference of signals corresponding to terminals in different geographical locations within the coverage of the same beam/cell is small), which in turn leads to the signal reception quality (including the terminal) corresponding to terminals in different geographical locations within the coverage of the same beam/cell
  • the difference of the downlink reception quality of the base station or the uplink reception quality of the base station is very small, as shown in Figure 3.
  • the beams (or beam footprints) or cells generated by some satellites (such as LEO satellites or GEO satellites) on the ground do not will move on the ground as the satellite moves in its orbit, as shown in Figure 4.
  • the beam 420 generated on the ground by the satellite 410 does not move with the movement of the satellite 410, but assumes a fixed position.
  • the architecture of the NTN communication system in the embodiment of the present application mainly includes an NTN communication architecture (ie, a transparent forwarding mode) with a transparent satellite (or called bent pipe payload) and a regenerative satellite (regenerative satellite). ) of the NTN communication architecture (i.e. regenerative signal mode), see Figure 5.
  • NTN communication architecture i.e. regenerative signal mode
  • FIG. 5 illustrates the NTN communication architecture with transparent satellites
  • FIG. 5 illustrates the NTN communication architecture with regenerative satellites.
  • the satellite 510 in the transparent repeater mode generates at least one beam 520 on the ground, and the at least one beam 520 can form a cell on the ground.
  • the terminal 530 located in the cell can measure one beam among all the beams in the cell, and establish a communication connection with the satellite 510 through the beam.
  • the satellite 540 regenerating the signal pattern generates at least one beam 550 on the ground, and the at least one beam 550 can form a cell on the ground.
  • the terminal 560 located in the cell can measure one beam among all the beams of the cell, and establish a communication connection with the satellite 540 through the beam.
  • Timing advance (TA) in NTN communication system 4. Timing advance (TA) in NTN communication system
  • the propagation delay (or propagation distance) between the terminal and the satellite and the propagation between the satellite and the network device (or non-terrestrial network gateway)
  • the time delay (or propagation distance) changes rapidly with the constant motion of the satellite.
  • the terminal needs to perform TA pre-compensation (ie, TA adjustment).
  • a part of the compensation value can be calculated by the terminal through its own location information (for example, calculated by the global navigation satellite system) and satellite ephemeris (satellite ephemeris), and another part of the compensation value can be calculated by the terminal according to the network instruction
  • the common timing advance rate is calculated. It should be noted that the common timing advance has an associated relationship with the position of the satellite, that is, the common timing advance has an associated relationship with the propagation distance from the satellite to the terminal.
  • a terminal in an idle (idle) state or in an inactive state (inactive) needs to enter a connected state through a random access procedure before sending data.
  • This idle/inactive data transmission mechanism will increase RRC signaling overhead, UE energy consumption, or data transmission delay.
  • the processing mechanism in narrow-band internet of things (NB-IoT) or enhanced machine-type communication (eMTC) is that the network configures the terminal through the network.
  • Periodic PUR and downlink search space window PUR searchspacewindow, PUR SS Window
  • the terminal can receive confirmation ACK feedback information, fallback indication information, or retransmission scheduling information through the PUR SS Window corresponding to the PUR.
  • the terminal can determine the start time of the PUR SSwindow according to the offset.
  • the terminal due to the large propagation distance (or propagation delay) between the satellite and the terminal in the NTN communication system, after the terminal sends the uplink data through the PUR, it needs to delay the activation of the PUR corresponding to the terminal.
  • the PUR SS window so as to ensure that the relevant information issued by the network device is received within the running time of the PUR SS window.
  • the duration (ie the offset) of the terminal delaying to start the PUR SS window will also continue to change, which will cause the network The problem that the device and the terminal cannot agree on the offset.
  • an embodiment of the present application provides a schematic flowchart of a method for determining a window offset, which is applied to a non-terrestrial network communication system, please refer to FIG. 7 .
  • the method includes:
  • the network device sends the first configuration information to the terminal.
  • the first configuration information may be used to determine the current window offset, and the current window offset may be used to indicate the offset of the downlink search space window corresponding to the currently preconfigured uplink resource that is delayed from the start time, the The start time may be the end position of the currently pre-configured uplink resources.
  • the technical solutions in the embodiments of the present application are applicable to both the transparent forwarding mode and the regeneration signal mode.
  • the transparent forwarding mode the first configuration information is sent by the network device located on the ground.
  • the regenerative signal mode since the network device is located at the satellite, the first configuration information is sent by the network device located at the satellite.
  • the current window offset in the embodiments of the present application can be understood as the first window offset, and the “first” and “second” in the embodiments of the present application are used to distinguish different objects, while Not intended to describe a specific order.
  • the propagation between the terminal located in the beam or the cell and the satellite is The distance (or propagation delay) will change continuously with the position of the satellite, so that the offset of the PUR SS Window corresponding to each time the terminal delays starting the PUR will also change continuously.
  • the embodiment of the present application considers that the network device sends the first configuration information to the terminal, and the terminal determines the offset of the current PUR SS Window according to the first configuration information, thereby ensuring that the terminal delays the start of the PUR SS Window offset each time
  • the amount will be adaptively adjusted with the constant change of the propagation distance between the terminal and the satellite, realizing the adaptive adjustment of the offset of the PUR SS Window between the network device and the terminal, and always ensuring that the network device and the terminal are in Agree on the offset of the PUR SS Window.
  • the unit of the current window offset may be one of milliseconds (ms), subframe (subframe), frame (frame), and time slot (slot), which is not specifically limited.
  • the first configuration information may be indicated by at least one of RRC dedicated signaling, media access control element (MAC control element, MAC CE), and system broadcast information.
  • RRC dedicated signaling media access control element (MAC control element, MAC CE)
  • MAC control element media access control element
  • system broadcast information MAC control element
  • the embodiment of the present application considers that the network device sends the first configuration information to the terminal through at least one of RRC dedicated signaling, MAC CE, and system broadcast information to realize the adaptive adjustment of the PUR SS Window corresponding to the current PUR. .
  • system broadcast information may include system information block (system information block, SIB) information.
  • SIB system information block
  • the terminal acquires the first configuration information from the network device.
  • the terminal determines the current window offset according to the first configuration information.
  • the network device in the non-terrestrial network communication system sends the first configuration information to the terminal in the non-terrestrial network communication system; then, the terminal acquires the first configuration information, and according to the first configuration information to determine the current window offset.
  • the current window offset is used to indicate the offset of the downlink search space window corresponding to the currently preconfigured uplink resource with the start time delay, and the start time is the end position of the current preconfigured uplink resource, it is beneficial to ensure that the terminal
  • the offset of the downlink search space window will be adaptively adjusted with the constant change of the propagation distance between the terminal and the satellite each time the delay starts, so as to realize the adaptation of the offset of the downlink search space window between the network equipment and the terminal Adjust, and always ensure that the network device and the terminal reach an agreement on the offset of the downlink search space window.
  • the first configuration information may include one of the following: starting value index information and value validating delay information, first mapping relationship information, current common timing advance, and current common timing advance change rate .
  • the starting value index (index) information can be used to determine the target value in the value list information, and the value list information is configured by the network; the value validating delay information can be used to instruct the terminal to use the target value as the target value.
  • the delay of the current window offset; the value list (list) information can be used to indicate a list composed of multiple window offsets (ie, at least two window offsets) in sequence.
  • the first configuration information includes initial value value index information and value value validation delay information.
  • the value list information can be used to indicate a list composed of multiple window offsets in sequence, and the values in the value list information can be used to represent the window offsets among the multiple window offsets, the terminal
  • the target value in the value list information can be determined according to the starting value index information, and then the target value can be used as the current window offset according to the value validating delay information. Since both the first configuration information and the value list information are configured by the network device, it is further ensured that the offset of the downlink search space window every time the terminal delays starting the downlink search space window will be adaptively adjusted with the constant change of the propagation distance between the terminal and the satellite. , realizes the adaptive adjustment of the offset of the downlink search space window between the network device and the terminal, and always ensures that the network device and the terminal reach an agreement on the offset of the downlink search space window.
  • the value list information can satisfy at least one of the following ways: the value in the value list information is determined by the propagation distance between the terminal and the satellite in the non-terrestrial network communication system, and the value in the value list information is between the values.
  • the arrangement order of the satellites has a corresponding relationship with the motion position of the satellites.
  • the embodiment of the present application considers the position of the terminal to be approximately fixed for a period of time, and mainly analyzes the constant change of the propagation distance between the terminal and the satellite caused by the position change of the satellite.
  • the embodiment of the present application considers that the network device determines the propagation between the terminal and the satellite according to the running track of the satellite and the current position of the terminal. The set of distances, and then determine each value in the value list information according to the set of propagation distances, thereby establishing a mapping relationship between the propagation distance between the terminal and the satellite and the values in the value list information.
  • the arrangement order of the values in the value list information has a corresponding relationship with the operating positions of the satellites, and the corresponding relationship may be in one-to-one correspondence.
  • the first mapping relationship information may be used to indicate the mapping relationship between the propagation distance from the terminal to the satellite in the non-terrestrial network communication system and the window offset.
  • the network device determines the set of propagation distances between the terminal and the satellite according to the running trajectory of the satellite and the current position of the terminal, and then establishes the set of propagation distances and multiple window offsets.
  • the mapping relationship between them is to obtain the first mapping relationship information, so that the terminal determines the current window offset according to the first mapping relationship information, and further ensures that the offset of the downlink search space window every time the terminal delays starting the downlink search space window will follow the terminal and the terminal.
  • the propagation distance between satellites is constantly changing and adaptively adjusted, so as to realize the adaptive adjustment of the offset of the downlink search space window between the network equipment and the terminal, and always ensure the downlink search space window between the network equipment and the terminal. Agree on offsets.
  • the current common timing advance can be used to determine the current window offset from the second mapping relationship information, and the second mapping relationship information is configured by the network; the rate of change of the current common timing advance can be used to determine the current common timing advance ;
  • the second mapping relationship information may be used to indicate the mapping relationship between the common timing advance and the window offset.
  • the mapping relationship may be that an interval of a common timing advance corresponds to a window offset.
  • the terminal may determine the current window offset from the second mapping relationship information according to the current common timing advance.
  • the terminal may determine the current common timing advance according to the rate of change of the current common timing advance, and then determine the current window offset from the second mapping relationship information according to the current common timing advance.
  • both the first configuration information and the second mapping relationship information are configured by the network device, it is further ensured that the offset of the downlink search space window every time the terminal delays starting the downlink search space window will be adaptively adjusted with the constant change of the propagation distance between the terminal and the satellite , realizes the adaptive adjustment of the offset of the downlink search space window between the network device and the terminal, and always ensures that the network device and the terminal reach an agreement on the offset of the downlink search space window.
  • the method may further include the following steps: the network device Send first information to the terminal, where the first information includes value list information.
  • the method may further include the following steps: the terminal Obtain first information from the network device, where the first information includes value list information.
  • the first information may be indicated by system broadcast information or RRC dedicated signaling.
  • the network device sends the first information to the terminal through system broadcast information or RRC dedicated signaling to obtain value list information, that is, sends the first information to the terminal through system broadcast information or RRC dedicated signaling. Indicates or configures value list information.
  • system broadcast information may include SIB information.
  • the terminal determines the current window offset according to the first configuration information, which may include the following steps: the terminal determines the target value from the value list information according to the initial value index information; After the message times out, the terminal takes the target value as the current window offset.
  • the terminal can use the initial value index information to index the value of the corresponding position from the value list information to obtain the target value, so that the target value is used as the current window offset.
  • this embodiment of the present application also considers the information on the validating delay information configured by the network device.
  • the effective delay information of the value can effectively reflect the position change of the satellite, and after the effective delay information of the value expires, the terminal will use the target value as the current window offset, thereby further ensuring that the terminal delays each time
  • the offset of starting the downlink search space window will be adaptively adjusted with the constant change of the propagation distance between the terminal and the satellite, so as to realize the adaptive adjustment of the offset of the downlink search space window between the network device and the terminal, and Always ensure that the network device and the terminal reach an agreement on the offset of the downlink search space window.
  • the terminal determines the current window offset according to the initial value index information, the value effective delay information and the value list.
  • the embodiments of the present application also consider how to implement a technical solution for updating the current window offset, which will be specifically described below through two sub-scenarios.
  • the first information may further include update period information; the update period information may be used to indicate that the terminal updates the current window offset to the next value where the target value is located at the location of the value list information The period starts from the time when the value of the effective delay information times out.
  • the network device can configure or indicate the value list information and the update period information to the terminal at the same time. At this time, the terminal may periodically update the current window offset by updating the period information.
  • the unit of the period may be one of milliseconds (ms), subframe (subframe), frame (frame), and time slot (slot), which is not specifically limited.
  • ms milliseconds
  • subframe subframe
  • frame frame
  • slot time slot
  • the method further includes the following steps: sending first indication information to the terminal through the MAC CE, where the first indication information is used to instruct the terminal to offset the current window The quantity is updated to the next value where the target value is located in the value list information.
  • the method further includes the following steps: the terminal receives the MAC CE from the network device to obtain the first indication information, and the first indication information is used for Instructs the terminal to update the current window offset to the next value where the target value is located in the value list information.
  • the network device instructs the terminal to update the current window offset by delivering the MAC CE.
  • the network device sends the first information to the terminal through system broadcast information or RRC dedicated signaling.
  • the first information includes value list information and update cycle information.
  • the network device sends the first configuration information to the terminal through RRC dedicated signaling or MAC CE.
  • the first configuration information includes initial value index information and value validation delay information.
  • the terminal receives the broadcast information or RRC dedicated signaling from the network equipment system to obtain the first information.
  • the first information includes value list information and update cycle information.
  • the terminal receives RRC dedicated signaling or MAC CE from the network device to obtain the first configuration information.
  • the first configuration information includes initial value index information and value validation delay information.
  • the terminal determines the target value from the value list information according to the starting value index information, and takes the target value as the current window offset after the time-out of the value validating delay information.
  • the terminal updates the current window offset to the next value where the target value is located at the location of the value list information according to the update period information.
  • method 1 can be exemplified as the process shown in FIG. 8 .
  • the network device sends the first information to the terminal through system broadcast information or RRC dedicated signaling.
  • the first information includes value list information.
  • the network device sends the first configuration information to the terminal through RRC dedicated signaling or MAC CE.
  • the first configuration information includes initial value index information and value validation delay information.
  • the network device sends the first indication information to the terminal through the MAC CE.
  • the terminal obtains the first information from the network device through system broadcast information or RRC dedicated signaling.
  • the first information includes value list information.
  • the terminal obtains the first configuration information from the network device through RRC dedicated signaling or MAC CE; wherein, the first configuration information includes initial value index information and value validation delay information.
  • the terminal determines the target value from the value list information according to the initial value index information, and uses the target value as the current window offset after the value validation delay information times out.
  • the terminal receives the MAC CE from the network device to obtain the first indication information, and according to the first indication information, updates the current window offset to the next value of the target value at the location of the value list information.
  • mode 2 can be exemplified as the process shown in FIG. 9 .
  • Example 1 The terminal obtains the value list information from the network device through system broadcast information or RRC dedicated signaling as ⁇ K1, K2, K3, K4, K5 ⁇ and the update period information as X subframes. Secondly, the terminal obtains the initial value index information from the network device through RRC dedicated signaling or MAC CE as 2 and the value effective delay information as Y subframes. Thirdly, the terminal obtains the target value K2 from the value list information through the initial value index information, and uses K2 as the front window offset after Y subframes time out.
  • the terminal starts from the time after the time-out of the time-out of the value-effective delay information, and after X subframes, updates the current window offset to K2 below the position of ⁇ K1, K2, K3, K4, K5 ⁇
  • K3 the terminal can start with K2 and update the next value in turn every X subframes, that is, the first X subframe is K2, the second X subframe is K3, and so on .
  • Example 2 The terminal obtains the value list information from the network device through system broadcast information or RRC dedicated signaling as ⁇ K1, K2, K3, K4, K5 ⁇ . Secondly, the terminal obtains the initial value index information from the network device through RRC dedicated signaling or MAC CE as 2 and the value effective delay information as Y subframe. Thirdly, the terminal obtains the target value K2 from the value list information through the initial value index information, and uses K2 as the current window offset after the Y subframe times out. Finally, the terminal obtains the first indication information through the MAC CE for the first time, and according to the first indication information, updates the current window offset to the next value of K2 at the location of ⁇ K1, K2, K3, K4, K5 ⁇ K3. It should be noted that when the terminal obtains the first indication information through the MAC CE for the second time, the terminal updates K3 to K4, and so on.
  • the method may further include the following step: the network device sends the first configuration information for PUR transmission to the terminal.
  • Second configuration information the second configuration information may include PUR transmission period information, resource configuration information of PUR transmission occasions, and mapping relationship information between PUR transmission resource blocks and the number of window offsets.
  • the method further includes the following steps: the terminal acquires the first configuration information from the network device for PUR transmission.
  • Second configuration information the second configuration information includes PUR transmission period information, resource configuration information of PUR transmission occasions, and mapping relationship information between PUR transmission resource blocks and window offsets.
  • the PUR transmission period information may be used to indicate the period of PUR transmission.
  • the resource configuration information of the PUR transmission occasion may be used to indicate multiple RUR transmission resource blocks configured in the PUR transmission occasion.
  • the multiple PUR transmission resource blocks may be distinguished by time division or frequency division.
  • mapping relationship information between the PUR transmission resource blocks and the window offsets may be used to indicate the mapping relationship between multiple RUR transmission resource blocks and multiple window offsets configured at the PUR transmission opportunity.
  • the mapping relationship may be that each of the multiple RUR transmission resource blocks corresponds to one of the multiple window offsets.
  • PUR transmission resource block 1010 is 1 subframe
  • PUR transmission resource block 1020 is 2 subframes
  • the window offset corresponding to the PUR transmission resource block 1030 is 3 subframes
  • the window offset corresponding to the PUR transmission resource block 1040 is 4 subframes.
  • the second configuration information may be indicated by RRC dedicated signaling.
  • the network device sends the second configuration information to the terminal through RRC dedicated signaling to obtain the PUR transmission period information, the resource configuration information of the PUR transmission opportunity, and the difference between the PUR transmission resource block and the window offset. information about the mapping relationship between them.
  • the terminal determines the current window offset according to the first configuration information, which may include the following steps: the terminal acquires first propagation distance information, and the first propagation distance information may be used to indicate the difference between the current location information of the terminal and the satellite. The terminal determines the current window offset from the first mapping relationship information according to the first propagation distance information.
  • the terminal can use the first propagation distance information to index the corresponding window offset from the first mapping relationship information as the current window offset, thereby further ensuring that the terminal delays starting the downlink search space window every time.
  • the offset will be adaptively adjusted with the constant change of the propagation distance between the terminal and the satellite, realizing the adaptive adjustment of the offset of the downlink search space window between the network equipment and the terminal, and always ensuring that the network equipment and the terminal are Agree on the offset of the downlink search space window.
  • acquiring the first propagation distance information by the terminal may include the following steps: the terminal acquires current location information; and the terminal calculates and obtains the first propagation distance information according to the current location information and the preset satellite ephemeris.
  • the terminal can obtain the current location information through its own global navigation satellite system (GNSS) calculation, and then calculate its current location and satellites through the current location information and the preset satellite ephemeris. distance between them.
  • GNSS global navigation satellite system
  • the method may further include the following steps: the terminal determines the current window offset according to the second configuration information and the current window offset Determine the current PUR transmission resource block, and perform uplink data transmission through the current PUR transmission resource block.
  • the terminal can use the current window offset to index the corresponding PUR transmission resource block from the mapping relationship information as the current PUR transmission resource block, so as to perform uplink data transmission through the current PUR transmission resource block to realize PUR transmission.
  • the network device in “situation 1" can also be used to instruct the terminal to update the current window offset by delivering the MAC CE, which will not be repeated here.
  • the network device sends the second configuration information for PUR transmission to the terminal through RRC dedicated signaling.
  • the second configuration information includes PUR transmission period information, resource configuration information of PUR transmission occasions, and mapping relationship information between PUR transmission resource blocks and window offsets.
  • the network device sends the first configuration information to the terminal through RRC dedicated signaling or MAC CE.
  • the first configuration information includes first mapping relationship information.
  • the terminal receives the RRC dedicated signaling from the network device to obtain the second configuration information for PUR transmission.
  • the second configuration information includes PUR transmission period information, resource configuration information of PUR transmission occasions, and mapping relationship information between PUR transmission resource blocks and window offsets.
  • the terminal receives RRC dedicated signaling or MAC CE from the network device to obtain the first configuration information.
  • the first configuration information includes first mapping relationship information.
  • the terminal acquires the first propagation distance information, and determines the current window offset from the first mapping relationship information according to the first propagation distance information.
  • the terminal determines the current PUR transmission resource block according to the second configuration information and the current window offset, and transmits uplink data through the current PUR transmission resource block.
  • situation two can be exemplified as the process shown in FIG. 11 .
  • the method may further include the following steps: the network device Send the second mapping relationship information to the terminal.
  • the method may further include the following steps: the terminal Obtain second mapping relationship information from the network device.
  • the second mapping relationship information may be indicated by system broadcast information or RRC dedicated signaling.
  • the network device sends the second mapping relationship information to the terminal through system broadcast information or RRC dedicated signaling.
  • the terminal determining the current window offset according to the first configuration information may include the following steps: the terminal determines the current window offset from the second mapping relationship information according to the current common timing advance; The current common timing advance change rate determines the current common timing advance; and the terminal determines the current window offset from the second mapping relationship information according to the current common timing advance.
  • the terminal can use the current common timing advance to index the corresponding information from the second mapping relationship information.
  • the window offset is used as the current window offset, thereby further ensuring that the offset of the downlink search space window will be adaptively adjusted with the continuous change of the propagation distance between the terminal and the satellite each time the terminal delays starting the downlink search space, so as to realize the network equipment Adaptive adjustment of the offset of the downlink search space window with the terminal, and always ensuring that the network device and the terminal reach an agreement on the offset of the downlink search space window.
  • T com T 0 + ⁇ t
  • T com represents the current common time advance
  • T 0 represents the initial common time advance, which is configured by the network
  • ⁇ represents the change rate of the current common time advance
  • t represents the time size.
  • the network device in “situation 1" can also be used to instruct the terminal to update the current window offset by delivering the MAC CE, which will not be repeated here.
  • the network device sends the second mapping relationship information to the terminal through system broadcast information or RRC dedicated signaling. Then, the network device sends the first configuration information to the terminal through RRC dedicated signaling or MAC CE.
  • the first configuration information includes the current public timing advance.
  • the terminal For the terminal, first, the terminal receives system broadcast information or RRC dedicated signaling from the network device to obtain the second mapping relationship information. Secondly, the terminal receives RRC dedicated signaling or MAC CE from the network device to obtain the first configuration information. The first configuration information includes the current public timing advance. Finally, the terminal determines the current window offset from the second mapping relationship information according to the current common timing advance.
  • situation three can be exemplified as the flow shown in FIG. 12 .
  • the network device sends the second mapping relationship information to the terminal through system broadcast information or RRC dedicated signaling. Then, the network device sends the first configuration information to the terminal through system broadcast information or RRC dedicated signaling.
  • the first configuration information includes the current common timing advance change rate.
  • the terminal receives system broadcast information or RRC dedicated signaling from the network device to obtain the second mapping relationship information.
  • the terminal receives system broadcast information or RRC dedicated signaling from the network device to obtain the first configuration information.
  • the first configuration information includes the current common timing advance change rate.
  • the terminal determines the current common timing advance according to the rate of change of the current common timing advance.
  • the terminal determines the current window offset from the second mapping relationship information according to the current common timing advance.
  • situation three can be exemplified as the flow shown in FIG. 13 .
  • the terminal or network device includes corresponding hardware structures and/or software modules for executing each function.
  • the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software-driven hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.
  • the terminal or network device may be divided into functional units according to the foregoing method examples.
  • each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit.
  • the above-mentioned integrated units can be implemented in the form of hardware, and can also be implemented in the form of software program modules. It should be noted that, the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division manners in actual implementation.
  • FIG. 14 provides a block diagram of functional units of a device for determining a window offset.
  • the window offset determination apparatus 1400 is applied to a terminal in a non-terrestrial network communication system, and specifically includes: a processing unit 1402 and a communication unit 1403 .
  • the processing unit 1402 is used to control and manage the actions of the terminal.
  • the processing unit 1402 is used to support the terminal to perform the steps in FIG. 7 , FIG. 8 , FIG. 9 , FIG. 11 , FIG. 12 or FIG. other processes of the technical solution.
  • the communication unit 1403 is used to support communication between the terminal and other devices in the non-terrestrial network communication system.
  • the window offset determination apparatus 1400 may further include a storage unit 1401 for storing program codes and data of the terminal.
  • the processing unit 1402 may be a processor or a controller, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (application-specific integrated circuit) integrated circuit, ASIC), field programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this disclosure.
  • the processing unit 1402 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.
  • the communication unit 1403 may be a communication interface, a transceiver, a transceiver circuit, etc., and the storage unit 1401 may be a memory.
  • the processing unit 1402 is a processor
  • the communication unit 1403 is a communication interface
  • the storage unit 1401 is a memory
  • the window offset determination apparatus 1400 involved in this embodiment of the present application may be the terminal shown in FIG. 16 .
  • the processing unit 1402 is configured to perform any step performed by the terminal in the above method embodiments, and when performing data transmission such as sending, the communication unit 1403 can be selectively invoked to complete corresponding operations. A specific description will be given below.
  • the processing unit 1402 is configured to: obtain first configuration information from the network device; determine a current window offset according to the first configuration information, where the current window offset is used to indicate that the downlink search space window corresponding to the currently preconfigured uplink resource starts with The offset of the time delay start, and the start time is the end position of the currently pre-configured uplink resources.
  • each operation may refer to the descriptions in the method embodiments shown in FIG. 7 , FIG. 8 , FIG. 9 , FIG. 11 , FIG. 12 or FIG. 13 , and details are not repeated here.
  • the first configuration information of the network device is acquired, and the current window offset is determined according to the first configuration information. Since the current window offset is used to indicate the offset of the downlink search space window corresponding to the currently preconfigured uplink resource with the start time delay, and the start time is the end position of the current preconfigured uplink resource, it is beneficial to ensure that the terminal
  • the offset of the downlink search space window will be adaptively adjusted with the constant change of the propagation distance between the terminal and the satellite each time the delay starts, so as to realize the adaptation of the offset of the downlink search space window between the network equipment and the terminal Adjust, and always ensure that the network device and the terminal reach an agreement on the offset of the downlink search space window.
  • the first configuration information is indicated by at least one of radio resource control RRC dedicated signaling, medium access control control element MAC CE, and system broadcast information.
  • the first configuration information includes one of the following: starting value index information and value validating delay information, first mapping relationship information, current common timing advance, and current common timing advance change rate.
  • the starting value index information is used to determine the target value in the value list information, and the value list information is configured by the network; the value validating delay information is used to instruct the terminal to use the target value as the current value.
  • the delay of the window offset; the value list information is used to indicate a list composed of multiple window offsets in order.
  • the value list information satisfies at least one of the following manners: the value in the value list information is determined by the propagation distance between the terminal and the satellite in the non-terrestrial network communication system, and the value in the value list information is determined by the propagation distance between the terminal and the satellite in the non-terrestrial network communication system.
  • the order in which the values are arranged corresponds to the motion position of the satellite.
  • the processing unit 1402 is further configured to: acquire information from the network The first information of the device, where the first information includes value list information.
  • the first information is indicated by system broadcast information or RRC dedicated signaling.
  • the processing unit 1402 is specifically configured to: determine the target value from the value list information according to the initial value index information; After the delay information times out, the target value is taken as the current window offset.
  • the first information further includes update cycle information; the update cycle information is used to indicate a cycle in which the terminal updates the current window offset to the next value where the target value is located at the location of the value list information , and the period starts from the time when the value takes effect and the delay information times out.
  • the processing unit 1402 is further configured to: receive the MAC CE from the network device to obtain first indication information, where the first indication information is used to indicate the terminal Update the current window offset to the next value where the target value is located in the value list information.
  • the first mapping relationship information is used to indicate the mapping relationship between the propagation distance of the terminal to the satellite in the non-terrestrial network communication system and the window offset.
  • the processing unit 1402 before acquiring the first configuration information from the network device, is further configured to: acquire the second configuration for PUR transmission from the network device
  • the second configuration information includes PUR transmission period information, resource configuration information of the PUR transmission opportunity, and mapping relationship information between the PUR transmission resource block and the window offset.
  • the second configuration information is indicated by RRC dedicated signaling.
  • the processing unit 1402 is specifically configured to: acquire first propagation distance information, where the first propagation distance information is used to indicate the current location information of the terminal and the satellite The propagation distance between them; the current window offset is determined from the first mapping relationship information according to the first propagation distance information.
  • the processing unit 1402 is further configured to: determine the current PUR according to the second configuration information and the current window offset The resource block is transmitted, and uplink data is transmitted through the current PUR transmission resource block.
  • the current common timing advance is used to determine the current window offset from the second mapping relationship information, and the second mapping relationship information is configured by the network; the current common timing advance change rate is used to determine the current common time Advance; the second mapping relationship information is used to indicate the mapping relationship between the common timing advance and the window offset.
  • the processing unit 1402 is further configured to: acquire The second mapping relationship information from the network device.
  • the second mapping relationship information is indicated by system broadcast information or RRC dedicated signaling.
  • the processing unit 1402 is specifically configured to: determine the current window offset from the second mapping relationship information according to the current common timing advance; or, The current common timing advance is determined according to the rate of change of the current common timing advance; and the current window offset is determined from the second mapping relationship information according to the current common timing advance.
  • FIG. 15 provides a block diagram of functional units of another apparatus for determining a window offset.
  • the window offset determination apparatus 1500 is applied to a network device in a non-terrestrial network communication system, and specifically includes: a processing unit 1502 and a communication unit 1503 .
  • the processing unit 1502 is used to control and manage the actions of the network device.
  • the processing unit 1502 is used to support the network device to perform the steps in FIG. 7 , FIG. 8 , FIG. 9 , FIG. 11 , FIG. 12 or FIG. Other processes of the described technical solution.
  • the communication unit 1503 is used to support communication between the network device and other devices in the non-terrestrial network communication system.
  • the window offset determination apparatus 1500 may further include a storage unit 1501 for storing program codes and data of the network device.
  • the processing unit 1502 may be a processor or a controller, for example, a CPU, DSP, ASIC, FPGA or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this disclosure.
  • the processing unit 1502 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.
  • the communication unit 1503 may be a communication interface, a transceiver, a transceiver circuit, etc., and the storage unit 1501 may be a memory. When the processing unit 1502 is a processor, the communication unit 1503 is a communication interface, and the storage unit 1501 is a memory, the window offset determination apparatus 1500 involved in this embodiment of the present application may be the network device shown in FIG. 17 .
  • the processing unit 1502 is configured to perform any step performed by the network device in the above method embodiments, and when performing data transmission such as sending, the communication unit 1503 can be selectively invoked to complete corresponding operations. A detailed description will be given below.
  • the processing unit 1502 is configured to: send first configuration information to the terminal, where the first configuration information is used to determine the current window offset, and the current window offset is used to indicate that the downlink search space window corresponding to the currently preconfigured uplink resource starts at the start time.
  • the offset of the delayed start, and the start time is the end position of the currently pre-configured uplink resources.
  • each operation may refer to the descriptions in the method embodiments shown in FIG. 7 , FIG. 8 , FIG. 9 , FIG. 11 , FIG. 12 or FIG. 13 , and details are not repeated here.
  • the first configuration information is sent to the terminal, and the first configuration information is used to determine the current window offset. Since the current window offset is used to indicate the offset of the downlink search space window corresponding to the currently preconfigured uplink resource with the start time delay, and the start time is the end position of the current preconfigured uplink resource, it is beneficial to ensure that the terminal
  • the offset of the downlink search space window will be adaptively adjusted with the constant change of the propagation distance between the terminal and the satellite each time the delay starts, so as to realize the adaptation of the offset of the downlink search space window between the network equipment and the terminal Adjust, and always ensure that the network device and the terminal reach an agreement on the offset of the downlink search space window.
  • the first configuration information is indicated by at least one of radio resource control RRC dedicated signaling, medium access control control element MAC CE, and system broadcast information.
  • the first configuration information includes one of the following: starting value index information and value validating delay information, first mapping relationship information, current common timing advance, and current common timing advance change rate.
  • the starting value index information is used to determine the target value in the value list information, and the value list information is configured by the network; the value validating delay information is used to instruct the terminal to use the target value as the current value.
  • the delay of the window offset; the value list information is used to indicate a list composed of multiple window offsets in order.
  • the value list information satisfies at least one of the following ways: the value in the value list information is determined by the propagation distance between the terminal and the satellite in the non-terrestrial network communication system, and the value in the value list information is determined by the propagation distance between the terminal and the satellite in the non-terrestrial network communication system.
  • the arrangement order between the values has a corresponding relationship with the motion position of the satellite.
  • the processing unit 1502 is further configured to: send the first configuration information to the terminal. information, the first information includes value list information.
  • the first information is indicated by system broadcast information or RRC dedicated signaling.
  • the first information further includes update cycle information; the update cycle information is used to indicate a cycle in which the terminal updates the current window offset to the next value where the target value is located at the location of the value list information , and the period starts from the time when the value takes effect and the delay information times out.
  • the processing unit 1502 is further configured to: send first indication information to the terminal through the MAC CE, where the first indication information is used to instruct the terminal to update the current window offset The next value for the target value at the location of the value list information.
  • the first mapping relationship information is used to indicate the mapping relationship between the propagation distance of the terminal to the satellite in the non-terrestrial network communication system and the window offset.
  • the processing unit 1502 is further configured to: send the second configuration information for PUR transmission to the terminal, the first The second configuration information includes the PUR transmission period information, the resource configuration information of the PUR transmission opportunity, and the mapping relationship information between the PUR transmission resource block and the window offset.
  • the second configuration information is indicated by RRC dedicated signaling.
  • the current common timing advance is used to determine the current window offset from the second mapping relationship information, and the second mapping relationship information is configured by the network; the rate of change of the current common timing advance is used to determine the current common timing advance
  • the second mapping relationship information is used to indicate the mapping relationship between the common timing advance and the window offset.
  • the processing unit 1502 is further configured to: send the second Mapping relationship information.
  • the second mapping relationship information is indicated by system broadcast information or RRC dedicated signaling.
  • FIG. 16 is a schematic structural diagram of a terminal provided by an embodiment of the present application.
  • the terminal 1600 includes a processor 1610 , a memory 1620 , a communication interface 1630 and at least one communication bus for connecting the processor 1610 , the memory 1620 , and the communication interface 1630 .
  • the memory 1620 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (PROM) or portable Read-only memory (compact disc read-only memory, CD-ROM), the memory 1620 is used for related instructions and data.
  • RAM random access memory
  • ROM read-only memory
  • PROM erasable programmable read-only memory
  • CD-ROM portable Read-only memory
  • Communication interface 1630 is used to receive and transmit data.
  • the processor 1610 may be one or more CPUs, and if the processor 1610 is one CPU, the CPU may be a single-core CPU or a multi-core CPU.
  • the processor 1610 in the terminal 1600 is configured to read one or more programs 1621 stored in the memory 1620 to perform the following steps: obtain the first configuration information from the network device; determine the current window offset according to the first configuration information, the current The window offset is used to indicate the offset of the downlink search space window corresponding to the currently preconfigured uplink resource, which is delayed from the start time, and the start time is the end position of the currently preconfigured uplink resource.
  • each operation may refer to the descriptions in the method embodiments shown in FIG. 7 , FIG. 8 , FIG. 9 , FIG. 11 , FIG. 12 or FIG. 13 , and details are not repeated here.
  • the first configuration information of the network device is acquired, and the current window offset is determined according to the first configuration information. Since the current window offset is used to indicate the offset of the downlink search space window corresponding to the currently preconfigured uplink resource with the start time delay, and the start time is the end position of the current preconfigured uplink resource, it is beneficial to ensure that the terminal
  • the offset of the downlink search space window will be adaptively adjusted with the constant change of the propagation distance between the terminal and the satellite each time the delay starts, so as to realize the adaptation of the offset of the downlink search space window between the network equipment and the terminal Adjust, and always ensure that the network device and the terminal reach an agreement on the offset of the downlink search space window.
  • the first configuration information is indicated by at least one of radio resource control RRC dedicated signaling, medium access control control element MAC CE, and system broadcast information.
  • the first configuration information includes one of the following: starting value index information and value validating delay information, first mapping relationship information, current common timing advance, and current common timing advance change rate.
  • the starting value index information is used to determine the target value in the value list information, and the value list information is configured by the network; the value validating delay information is used to instruct the terminal to use the target value as the current value.
  • the delay of the window offset; the value list information is used to indicate a list composed of multiple window offsets in order.
  • the value list information satisfies at least one of the following manners: the value in the value list information is determined by the propagation distance between the terminal and the satellite in the non-terrestrial network communication system, and the value in the value list information is determined by the propagation distance between the terminal and the satellite in the non-terrestrial network communication system.
  • the order in which the values are arranged corresponds to the motion position of the satellite.
  • the processor 1610 before acquiring the first configuration information from the network device, the processor 1610 is configured to read the memory 1620
  • the stored one or more programs 1621 also perform the following steps: acquiring first information from the network device, where the first information includes value list information.
  • the first information is indicated by system broadcast information or RRC dedicated signaling.
  • the processor 1610 is configured to read one or more programs 1621 stored in the memory 1620 and specifically perform the following steps: according to the starting value index The information determines the target value from the value list information; after the time-out of the value effective delay information, the target value is used as the current window offset.
  • the first information further includes update cycle information; the update cycle information is used to indicate a cycle in which the terminal updates the current window offset to the next value where the target value is located at the location of the value list information , and the period starts from the time when the value takes effect and the delay information times out.
  • the processor 1610 is configured to read one or more programs 1621 stored in the memory 1620 and further perform the following steps: receiving the MAC address from the network device The CE obtains first indication information, where the first indication information is used to instruct the terminal to update the current window offset to the next value where the target value is located at the location of the value list information.
  • the first mapping relationship information is used to indicate the mapping relationship between the propagation distance of the terminal to the satellite in the non-terrestrial network communication system and the window offset.
  • the processor 1610 before acquiring the first configuration information from the network device, the processor 1610 is configured to read one or more programs 1621 stored in the memory 1620 The following steps are also performed: acquiring second configuration information for PUR transmission from the network device, where the second configuration information includes PUR transmission period information, resource configuration information of PUR transmission occasions, and a mapping relationship between PUR transmission resource blocks and window offsets information.
  • the second configuration information is indicated by RRC dedicated signaling.
  • the processor 1610 is configured to read one or more programs 1621 stored in the memory 1620 and specifically perform the following steps: acquiring the first propagation distance information , the first propagation distance information is used to indicate the propagation distance between the current location information of the terminal and the satellite; the current window offset is determined from the first mapping relationship information according to the first propagation distance information.
  • the processor 1610 is configured to read one or more programs 1621 stored in the memory 1620 and further execute the following Step: Determine the current PUR transmission resource block according to the second configuration information and the current window offset, and perform uplink data transmission through the current PUR transmission resource block.
  • the current common timing advance is used to determine the current window offset from the second mapping relationship information, and the second mapping relationship information is configured by the network; the current common timing advance change rate is used to determine the current common time Advance; the second mapping relationship information is used to indicate the mapping relationship between the common timing advance and the window offset.
  • the processor 1610 before acquiring the first configuration information from the network device, the processor 1610 is configured to read the memory
  • the one or more programs 1621 stored in 1620 also perform the following steps: acquiring second mapping relationship information from the network device.
  • the second mapping relationship information is indicated by system broadcast information or RRC dedicated signaling.
  • the processor 1610 is configured to read one or more programs 1621 stored in the memory 1620 and specifically perform the following steps: according to the current common timing advance Determine the current window offset from the second mapping relationship information; or, determine the current common timing advance according to the rate of change of the current common timing advance; and determine the current window offset from the second mapping relationship information according to the current common timing advance quantity.
  • FIG. 17 is a schematic structural diagram of a network device provided by an embodiment of the present application.
  • the network device 1700 includes a processor 1710 , a memory 1720 , a communication interface 1730 and at least one communication bus for connecting the processor 1710 , the memory 1720 , and the communication interface 1730 .
  • the memory 1720 includes, but is not limited to, RAM, ROM, PROM, or CD-ROM, and the memory 1720 is used to store related instructions and data.
  • Communication interface 1730 is used to receive and transmit data.
  • the processor 1710 may be one or more CPUs, and if the processor 1710 is one CPU, the CPU may be a single-core CPU or a multi-core CPU.
  • the processor 1710 in the network device 1700 is configured to read one or more programs 1721 stored in the memory 1720 to perform the following steps: send first configuration information to the terminal, the first configuration information is used to determine the current window offset, the current The window offset is used to indicate the offset of the downlink search space window corresponding to the currently preconfigured uplink resource, which is delayed from the start time, and the start time is the end position of the currently preconfigured uplink resource.
  • each operation may refer to the descriptions in the method embodiments shown in FIG. 7 , FIG. 8 , FIG. 9 , FIG. 11 , FIG. 12 or FIG. 13 , and details are not repeated here.
  • the first configuration information is sent to the terminal, and the first configuration information is used to determine the current window offset. Since the current window offset is used to indicate the offset of the downlink search space window corresponding to the currently preconfigured uplink resources, the start time is delayed from the start time, and the start time is the end position of the current preconfigured uplink resources, which is beneficial to ensure that the terminal
  • the offset of the downlink search space window will be adaptively adjusted with the constant change of the propagation distance between the terminal and the satellite each time the delay starts, so as to realize the adaptation of the offset of the downlink search space window between the network equipment and the terminal Adjust, and always ensure that the network device and the terminal reach an agreement on the offset of the downlink search space window.
  • the first configuration information is indicated by at least one of radio resource control RRC dedicated signaling, medium access control control element MAC CE, and system broadcast information.
  • the first configuration information includes one of the following: starting value index information and value validating delay information, first mapping relationship information, current common timing advance, and current common timing advance change rate.
  • the starting value index information is used to determine the target value in the value list information, and the value list information is configured by the network; the value validating delay information is used to instruct the terminal to use the target value as the current value.
  • the delay of the window offset; the value list information is used to indicate a list composed of multiple window offsets in order.
  • the value list information satisfies at least one of the following ways: the value in the value list information is determined by the propagation distance between the terminal and the satellite in the non-terrestrial network communication system, and the value in the value list information is determined by the propagation distance between the terminal and the satellite in the non-terrestrial network communication system.
  • the arrangement order between the values has a corresponding relationship with the motion position of the satellite.
  • the processor 1710 before sending the first configuration information to the terminal, the processor 1710 is configured to read the data stored in the memory 1720
  • the one or more programs 1721 also perform the following steps: sending first information to the terminal, where the first information includes value list information.
  • the first information is indicated by system broadcast information or RRC dedicated signaling.
  • the first information further includes update cycle information; the update cycle information is used to indicate a cycle in which the terminal updates the current window offset to the next value where the target value is located at the location of the value list information , and the period starts from the time when the value takes effect and the delay information times out.
  • the processor 1710 after sending the first configuration information to the terminal, is configured to read one or more programs 1721 stored in the memory 1720 and further perform the following steps: sending the first indication information to the terminal through the MAC CE , and the first indication information is used to instruct the terminal to update the current window offset to the next value where the target value is located at the location of the value list information.
  • the first mapping relationship information is used to indicate the mapping relationship between the propagation distance of the terminal to the satellite in the non-terrestrial network communication system and the window offset.
  • the processor 1710 before sending the first configuration information to the terminal, the processor 1710 is configured to read one or more programs 1721 stored in the memory 1720 and also execute The following steps: send second configuration information for PUR transmission to the terminal, where the second configuration information includes PUR transmission period information, resource configuration information of PUR transmission occasions, and mapping relationship information between PUR transmission resource blocks and window offsets.
  • the second configuration information is indicated by RRC dedicated signaling.
  • the current common timing advance is used to determine the current window offset from the second mapping relationship information, and the second mapping relationship information is configured by the network; the rate of change of the current common timing advance is used to determine the current common timing advance
  • the second mapping relationship information is used to indicate the mapping relationship between the common timing advance and the window offset.
  • the processor 1710 before sending the first configuration information to the terminal, the processor 1710 is configured to read the data stored in the memory 1720
  • the one or more programs 1721 also perform the following steps: sending the second mapping relationship information to the terminal.
  • the second mapping relationship information is indicated by system broadcast information or RRC dedicated signaling.
  • An embodiment of the present application further provides a chip, wherein the chip includes a processor, configured to call and run a computer program from a memory, so that the device installed with the chip executes the execution of the terminal or network device in the above method embodiments. some or all of the steps described.
  • Embodiments of the present application further provide a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes the computer to execute the terminal as described in the foregoing method embodiments or some or all of the steps described by the network device.
  • the embodiments of the present application also provide a computer program product, wherein the computer program product includes a computer program, and the computer program is operable to cause the computer to execute part or all of the description of the terminal or network device in the foregoing method embodiments step.
  • the computer program product may be a software installation package.
  • the steps of the method or algorithm described in the embodiments of the present application may be implemented in a hardware manner, or may be implemented in a manner in which a processor executes software instructions.
  • the software instructions may be composed of corresponding software modules, and the software modules may be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disks, removable hard disks, compact disks (CD-ROMs) or any other form known in the art. in the storage medium.
  • An exemplary storage medium is coupled to the processor, such that the processor can read information from, and write information to, the storage medium.
  • the storage medium can also be an integral part of the processor.
  • the processor and storage medium may reside in an ASIC.
  • the ASIC may be located in a terminal or network device.
  • the processor and the storage medium may also exist in the terminal or network device as discrete components.
  • the functions described in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software When implemented in software, it can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions can be sent from one website site, computer, server, or data center to another website site, computer, server by wire (eg, coaxial cable, fiber optic, DSL) or wireless (eg, infrared, wireless, microwave, etc.) or data center for transmission.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes one or more available media integrated.

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Abstract

本申请实施例公开了一种窗口偏移量确定方法与装置、终端和网络设备，应用于非地面网络通信系统，该非地面网络通信系统包括终端和网络设备。该方法包括：网络设备向终端发送第一配置信息；终端获取来自网络设备的第一配置信息，并根据第一配置信息确定当前窗口偏移量。由于当前窗口偏移量用于表示当前预配置上行资源对应的下行搜索空间窗口以起始时刻延迟启动的偏移量，并且起始时刻为当前预配置上行资源的结束位置，从而保证终端每次延迟启动下行搜索空间窗口的偏移量会随着终端与卫星之间的传播距离的不断变化而自适应调整，实现网络设备与终端之间的窗口偏移量的自适应调整，以及始终保证网络设备与终端之间在窗口偏移量上达成一致。

Description

窗口偏移量确定方法与装置、终端和网络设备 技术领域
本申请涉及通信技术领域，尤其涉及一种窗口偏移量确定方法与装置、终端和网络设备。
背景技术
目前，第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)正在制定关于非地面网络(non-terrestrial network，NTN)通信的协议标准，其协议标准主要涉及有航天设备(spaceborne vehicle)或者空运设备(airborne vehicle)，例如同步地球轨道卫星、近地轨道卫星、高椭圆轨道卫星、高空平台站(high-altitude platform stations，HAPS)等。
相比于陆地网络通信系统，由于NTN通信系统中的卫星通常会在地面上产生波束(beam，或者称为beam footprint)或者小区，并且该卫星会沿着固定的轨道不断运动，因此位于上述波束或者小区内的终端与该卫星之间的传播距离(或传播时延)会随着该卫星的位置变化而不断变化，从而导致该终端每次延迟启动预配置上行资源(preconfigure uplink resource，PUR)对应的下行搜索空间窗(PUR searchspacewindow，PUR SS Window)的时长(即偏移量)也会不断变化。在这种情况下，如何确定每次延迟启动PUR SS Window的偏移量，还需要进一步研究。
发明内容
本申请实施例提供一种窗口偏移量确定方法与装置、终端和网络设备，以期望实现网络设备与终端之间的预配置上行资源对应的下行搜索空间窗口的偏移量的自适应调整，以及始终保证网络设备与终端之间在该偏移量上达成一致。
第一方面，本申请实施例提供一种窗口偏移量确定方法，应用于非地面网络通信系统中的终端，所述非地面网络通信系统包括所述终端和网络设备；所述方法包括：
获取来自所述网络设备的第一配置信息；
根据所述第一配置信息确定当前窗口偏移量，所述当前窗口偏移量用于表示当前预配置上行资源对应的下行搜索空间窗口以起始时刻延迟启动的偏移量，所述起始时刻为所述当前预配置上行资源的结束位置。
第二方面，本申请实施例提供一种窗口偏移量确定方法，其特征在于，应用于非地面网络通信系统中的网络设备，所述非地面网络通信系统包括所述网络设备和终端；所述方法包括：
向所述终端发送第一配置信息，所述第一配置信息用于确定当前窗口偏移量，所述当前窗口偏移量用于表示当前预配置上行资源对应的下行搜索空间窗口以起始时刻延迟启动的偏移量，所述起始时刻为所述当前预配置上行资源的结束位置。
第三方面，本申请实施例提供一种窗口偏移量确定装置，应用于非地面网络通信系统中的终端，所述非地面网络系统包括所述终端和网络设备；所述装置包括处理单元和通信单元，所述处理单元用于：
通过所述通信单元获取来自所述网络设备的第一配置信息；
根据所述第一配置信息确定当前窗口偏移量，所述当前窗口偏移量用于表示当前预配置上行资源对应的下行搜索空间窗口以起始时刻延迟启动的偏移量，所述起始时刻为所述当前预配置上行资源的结束位置。
第四方面，本申请实施例提供一种窗口偏移量确定装置，应用于非地面网络通信系统中的网络设备，所述非地面网络通信系统包括所述网络设备和终端；所述装置包括处理单元和通信单元，所述处理单元用于：
通过所述通信单元向所述终端发送第一配置信息，所述第一配置信息用于确定当前窗口偏移量，所述当前窗口偏移量用于表示当前预配置上行资源对应的下行搜索空间窗口以起始时刻延迟启动的偏移量，所述起始时刻为所述当前预配置上行资源的结束位置。
第五方面，本申请实施例提供一种终端，包括处理器、存储器、通信接口以及一个或多个程序，其中，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行本申请实施例第一方面任一方法中的步骤的指令。
第六方面，本申请实施例提供一种网络设备，包括处理器、存储器、通信接口以及一个或多个程序，其中，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行本申请实施例第二方面任一方法中的步骤的指令。
第七方面，本申请实施例提供了一种芯片，包括处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如本申请实施例第一方面或第二方面任一方法中所描述的部分或全部步骤。
第八方面，本申请实施例提供了一种计算机可读存储介质，其中，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如本申请实施例第一方面或第二方面任一方法中所描述的部分或全部步骤。
第九方面，本申请实施例提供了一种计算机程序，其中，所述计算机程序可操作来使计算机执行如本申请实施例第一方面或第二方面任一方法中所描述的部分或全部步骤。该计算机程序可以为一个软件安装包。
可以看出，本申请实施例中，非地面网络通信系统中的网络设备向非地面网络通信系统中的终端发送第一配置信息；然后，终端获取该第一配置信息，并根据该第一配置信息确定当前窗口偏移量。由于当前窗口偏移量用于表示当前预配置上行资源对应的下行搜索空间窗口以起始时刻延迟启动的偏移量，并且起始时刻为当前预配置上行资源的结束位置，从而有利于保证终端每次延迟启动下行搜索空间窗口的偏移量会随着终端与卫星之间的传播距离的不断变化而自适应调整，实现网络设备与终端之间的下行搜索空间窗口的偏移量的自适应调整，以及始终保证网络设备与终端之间在下行搜索空间窗口的偏移量上达成一致。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请实施例提供的一种非地面网络通信系统的架构示意图；
图2是本申请实施例提供的一种具有透明卫星通信系统的架构示意图；
图3是本申请实施例提供的一种陆地网通信系统与非地面网络通信系统之间比较信号接收质量的 结构示意图；
图4是本申请实施例提供的一种非地面网络通信系统的地球固定波束场景的结构示意图；
图5是本申请实施例提供的一种非地面网络通信系统的架构比较的架构示意图；
图6是本申请实施例提供的一种预配置上行资源对应的下行搜索空间窗口的偏移量的结构示意图；
图7是本申请实施例提供的一种窗口偏移量确定方法的流程示意图；
图8是本申请实施例提供的又一种窗口偏移量确定方法的流程示意图；
图9是本申请实施例提供的又一种窗口偏移量确定方法的流程示意图；
图10是本申请实施例提供的一种多个RUR传输资源块与多个窗口偏移量之间的映射关系的结构示意图；
图11是本申请实施例提供的又一种窗口偏移量确定方法的流程示意图；
图12是本申请实施例提供的又一种窗口偏移量确定方法的流程示意图；
图13是本申请实施例提供的又一种窗口偏移量确定方法的流程示意图；
图14是本申请实施例提供的一种窗口偏移量确定装置的功能单元组成框图；
图15是本申请实施例提供的又一种窗口偏移量确定装置的功能单元组成框图；
图16是本申请实施例提供的一种终端的结构示意图；
图17是本申请实施例提供的一种网络设备的结构示意图。
具体实施方式
为了使本技术领域的人员更好地理解本申请方案，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、软件、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其他步骤或单元。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。下面结合附图，对本申请实施例进行详细介绍。
本申请实施例的技术方案可以应用于非地面网络(non-terrestrial network，NTN)通信系统中，而NTN通信系统一般采用卫星通信的方式向地面终端提供通信服务。
示例性的，本申请实施例应用的非地面网络通信系统，如图1所示。非地面网络通信系统10可以包括终端110、小区内参考点(reference point)120、卫星130、非地面网络网关(NTN gateway)140和网络设备150。其中，终端110、非地面网络网关140和网络设备150可以位于地球表面，而卫星130 位于地球轨道。卫星130可以向信号覆盖的地理区域提供通信服务，并且可以与位于信号覆盖区域内的终端110进行通信。同时，终端110位于某个小区内，并且该小区包括一个小区内参考点120。此外，终端110与卫星130之间的无线通信链路称为服务链路(service link)，而卫星130与非地面网络网关(NTN gateway)140之间的无线通信链路称为供给链路(feeder link)。需要说明的是，非地面网络网关(NTN gateway)140与网络设备150可以集成到同一个设备，也可以为分离的不同设备，对此不作具体限制。
本申请实施例结合终端、卫星和网络设备描述了各个实施例。下面对其进行具体介绍。
具体的，本申请实施例中的终端可以是用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、智能终端、无线通信设备、用户代理或用户装置。终端还可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、中继设备、车载设备、可穿戴设备、下一代通信系统例如NR网络中的终端或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端等，对此不作具体限定。
进一步的，终端可以部署在陆地上，包括室内或室外、手持、穿戴或车载；可以部署在水面上(如轮船等)；还可以部署在空中(如飞机、气球和卫星等)。
进一步的，终端可以是手机(mobile phone)、平板电脑、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self driving)中的车载设备、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备或智慧家庭(smart home)中的无线终端设备等。
具体的，本申请实施例中的卫星可以是载有弯管有效载荷(bent pipe payload)或再生有效载荷(regenerative payload)信号发射机的航天器，其通常运行在300至1500km之间的高度的近地轨道(low earth orbit，LEO)、在7000至25000km之间的高度的中地轨道(medium earth orbit，MEO)、在35786km的高度的同步地球轨道(geostationary earth orbit，GEO)或者在400至50000km之间的高度的高椭圆轨道(high elliptical orbit，HEO)。也就是说，卫星按照轨道高度的不同可以为LEO卫星、MEO卫星、GEO卫星或者HEO卫星等。
进一步的，本申请实施例中的卫星发送的信号通常会在以其视场(field of view)为边界的给定服务区域(given service area)上产生一个或多个波束(beam，或者称为beam footprint)。同时，一个波束在地面上的形状可以为椭圆形，而卫星的视场取决于天线和最小仰角等。
具体的，本申请实施例中的非地面网络网关可以是位于地球表面的地球站或网关，并能够提供足够的无线射频(radio frequency，RF)功率和RF灵敏度以连接卫星。同时，非地面网络网关可以是传输网络层(transport network layer，TNL)节点。
具体的，本申请实施例中的网络设备可以是全球移动通讯(global system of mobile communication，GSM)通信系统或者码分多址(code division multiple access，CDMA)通信系统中的基站(base transceiver station，BTS)、宽带码分多址(wideband code division multiple access，WCDMA)通信系统中的基站 (nodeB，NB)、长期演进(long term evolution，LTE)通信系统中的演进型基站(evolutional node B，eNB或eNodeB)或者新无线(new radio，NR)通信系统中的基站(gNB)。网络设备还可以是无线局域网WLAN中的接入点(access point，AP)、中继站、未来演进的PLMN网络中的网络设备或者NTN通信系统中的网络设备等。
需要说明的是，在一些网络部署中，gNB可以包括集中式单元(centralized unit，CU)和分布式单元(distributed unit，DU)，而gNB还可以包括有源天线单元(active antenna unit，AAU)。其中，CU可以实现gNB的部分功能，而DU也可以实现gNB的部分功能。比如，CU负责处理非实时协议和服务，实现无线资源控制(radio resource control，RRC)层和分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能；DU负责处理物理层协议和实时服务，实现无线链路控制(radio link control，RLC)层、媒体接入控制(medium access control，MAC)层和物理(physical，PHY)层的功能。另外，AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。由于RRC层的信息最终会变成PHY层的信息，或者，由PHY层的信息转变而来，因此，高层信令(如RRC层信令)可以认为是由DU发送的，或者由DU+AAU发送的。可以理解的是，网络设备可以包括CU节点、DU节点、AAU节点中一项或多项的设备。此外，可以将CU划分为接入网(radio access network，RAN)中的网络设备，也可以将CU划分为核心网(core network，CN)中的网络设备，对此不做具体限制。
示例性的，本申请实施例提供一种具有透明卫星(transparent satellite)通信系统的架构示意图，如图2所示。其中，终端、非地面网络网关和gNB位于地球表面，而卫星位于地球轨道。同时，卫星、非地面网络网关和gNB可以作为5G无线接入网(NG-radio access network，NG-RAN)，并且NG-RAN通过NG接口连接5G核心网。需要说明的是，卫星有效载荷在上行链路和下行链路方向都实现了频率转换和射频放大器，该卫星对应于模拟RF中继器。此外，不同的透明卫星可以连接到地面上的同一个gNB上。
在对本申请实施例提供的窗口偏移量确定方法进行详细介绍之前，再对本申请所涉及的相关通信技术进行介绍。
1、NTN通信系统
在NTN通信系统中，卫星通常会在地面上产生一个或多个波束(beam，或者称为beam footprint)或者小区，而一个波束在地面上的形状可以为椭圆形。其中，部分卫星(例如LEO卫星)在地面上产生的波束或者小区也会随着该卫星在其轨道上的运动而在地面上移动；或者，部分卫星(例如LEO卫星或者GEO卫星)在地面上产生的波束或者小区不会随着该卫星在其轨道上的运动而在地面上移动。
由于卫星相对于地面的距离非常远(例如，GEO卫星是35786km)，因此在同一个波束或者小区的覆盖范围内，不同地理位置的终端(如UE)与卫星之间的传播距离差异较小(即同一个波束/小区的覆盖范围内不同地理位置的终端对应的信号的路损差异较小)，进而导致同一个波束/小区的覆盖范围内不同地理位置的终端对应的信号接收质量(包括终端的下行接收质量或者基站的上行接收质量)差异非常小，如图3所示。
在图3中的(a)所示的陆地网通信系统中，同一个波束/小区的覆盖范围内具有不同地理位置的终端3201和终端3202。由于网络设备310到终端3201的传播距离与到终端3202的传播距离之间存在较大差异，因此导致终端3201对应的信号接收质量与终端3202对应的信号接收质量之间存在较大差异。 而在图3中的(b)所示的NTN通信系统中，同一个波束/小区的覆盖范围内具有不同地理位置的终端3401和终端3402。由于卫星330到地面的距离非常远，因此卫星330到终端3401的传播距离与到终端3402的传播距离之间存在较小差异，从而导致终端3401对应的信号接收质量与终端3402对应的信号接收质量之间存在较小差异。
2、NTN通信系统的地球固定波束(earth-fixedbeam)场景
在NTN通信系统的地球固定波束场景中，虽然卫星会沿着固定的轨道运行，但是部分卫星(例如LEO卫星或者GEO卫星)在地面上产生的波束(beam，或者称为beam footprint)或者小区不会随着该卫星在其轨道上的运动而在地面上移动，如图4所示。卫星410在地面上产生的波束420不会随着卫星410的运动而移动，而是呈现固定位置。
3、NTN通信系统的架构
本申请实施例中NTN通信系统的架构主要包括具有透明卫星(transparent satellite)(或称为弯管有效载荷(bent pipe payload))的NTN通信架构(即透明转发模式)和具有再生卫星(regenerative satellite)的NTN通信架构(即再生信号模式)，请参阅图5。其中，图5中的(a)示例出具有透明卫星的NTN通信架构，而图5中的(b)示例出具有再生卫星的NTN通信架构。在图5中的(a)中，透明转发模式的卫星510在地面上产生至少一个波束520，并且该至少一个波束520可以在地面上形成一个小区。此时，位于该小区内的终端530可以测量到该小区的所有波束中的一个波束，并通过该波束与卫星510建立通信连接。同理，在图5中的(b)中，再生信号模式的卫星540在地面上产生至少一个波束550，并且该至少一个波束550可以在地面上形成一个小区。此时，位于该小区内的终端560可以测量到该小区的所有波束中的一个波束，并通过该波束与卫星540建立通信连接。
4、NTN通信系统中的时间提前量(timing advance，TA)
在NTN通信系统中，由于卫星会沿着固定的轨道不断运动，因此终端与该卫星之间的传播时延(或传播距离)以及该卫星与网络设备(或非地面网络网关)之间的传播时延(或传播距离)会随着该卫星的不断运动而发生快速变化。为了解决传播时延不断变化的问题，在发送上行数据之前，终端需要进行TA的预补偿(即TA调整)。其中，补偿值的一部分可以是终端通过自身所在的位置信息(如通过全球导航卫星系统计算得到)和卫星星历表(satellite ephemeris)计算得到，而补偿值的另一部分可以是终端根据网络指示的公共时间提前量变化速率(common timing advance rate)计算得到。需要说明的是，公共时间提前量与卫星的位置具有关联关系，即公共时间提前量与卫星到终端之间的传播距离存在关联关系。
5、预配置上行资源(preconfigure uplink resource，PUR)
在目前的NR通信系统中，处于空闲(idle)态或者非激活态(inactive)下的终端需要通过随机接入过程进入连接态后才能发送数据。这种idle/inactive下的数据传输机制会增大RRC信令开销、UE能耗或者数据传输时延等问题。为了保证终端在idle态能够直接发送数据，窄带物联网(narrow band internet of things，NB-IoT)或增强型机器类型通信(enhanced machine-type communication，eMTC)中的处理机制是网络通过给终端配置周期性的PUR以及该PUR对应的下行搜索空间窗(PUR searchspacewindow，PUR SS Window)。同时，终端在该PUR发送上行数据之后，可以通过该PUR对应的PUR SS Window接收确认ACK反馈信息、fallback指示信息或者重传调度信息等。其中，该PUR 与该PUR SSwindow之间存在一个偏移量(offset)，也就是说，终端可以根据该偏移量确定该PUR SSwindow的启动时刻。
示例性的，请参阅图6。在一个PUR周期内，预配置上行资源610与该预配置上行资源对应的下行搜索空间窗口620之间存在一个偏移量。
然而，相比于陆地网络通信系统，由于NTN通信系统中卫星与终端之间存在很大的传播距离(或传播时延)，因此终端在通过PUR发送上行数据后，需要延时启动该PUR对应的PUR SS window，从而保证在该PUR SS window的运行时间内接收到网络设备下发的相关信息。另外，由于终端与卫星之间的传播时延又会随着卫星的位置变化而不断变化，因此终端每次延迟启动该PUR SS window的时长(即偏移量)也会不断变化，从而导致网络设备与终端之间针对该偏移量无法达成一致的问题。
结合上述描述，本申请实施例提供一种窗口偏移量确定方法的流程示意图，其应用于非地面网络通信系统，请参阅图7。该方法包括：
S710、网络设备向终端发送第一配置信息。
其中，第一配置信息可以用于确定当前窗口偏移量，并且该当前窗口偏移量可以用于表示当前预配置上行资源对应的下行搜索空间窗口以起始时刻延迟启动的偏移量，该起始时刻可以为当前预配置上行资源的结束位置。
需要说明的是，本申请实施例中的技术方案既适用于透明转发模式也适用于再生信号模式。在透明转发模式下，第一配置信息由位于地面的网络设备发送。在再生信号模式下，由于网络设备位于卫星，因此第一配置信息由位于卫星的网络设备发送。
另外，本申请实施例中的当前窗口偏移量，可以理解为，第一窗口偏移量，并且本申请实施例中的“第一”、“第二”等是用于区别不同对象，而不是用于描述特定顺序。
进一步需要说明的是，由于NTN通信系统中的卫星会在地面上产生波束或者小区，并且该卫星会沿着固定的轨道不断运动，因此位于该波束或者小区内的终端与该卫星之间的传播距离(或传播时延)会随着该卫星的位置变化而不断变化，从而导致该终端每次延迟启动PUR对应的PUR SS Window的偏移量也会不断变化。为此，本申请实施例考虑由网络设备向终端发送第一配置信息，并由终端根据第一配置信息确定当前PUR SS Window的偏移量，从而保证终端每次延迟启动PUR SS Window的偏移量会随着终端与卫星之间的传播距离的不断变化而自适应调整，实现网络设备与终端之间的PUR SS Window的偏移量的自适应调整，以及始终保证网络设备与终端之间在PUR SS Window的偏移量上达成一致。
具体的，该当前窗口偏移量的单位可以是毫秒(ms)、子帧(subframe)、帧(frame)、时隙(slot)中的之一，对此不作具体限制。
具体的，第一配置信息可以是由无线资源控制RRC专用信令、媒体接入控制控制元素(MAC control element，MAC CE)、系统广播信息中的至少之一指示的。
需要说明的是，本申请实施例考虑由网络设备通过RRC专用信令、MAC CE、系统广播信息中的至少之一向终端发送第一配置信息以实现对当前PUR对应的PUR SS Window的自适应调整。
进一步的，系统广播信息可以包括系统信息块(system information block，SIB)信息。
S720、终端获取来自网络设备的第一配置信息。
S730、终端根据第一配置信息确定当前窗口偏移量。
可以看出，本申请实施例中，非地面网络通信系统中的网络设备向非地面网络通信系统中的终端发送第一配置信息；然后，终端获取该第一配置信息，并根据该第一配置信息确定当前窗口偏移量。由于当前窗口偏移量用于表示当前预配置上行资源对应的下行搜索空间窗口以起始时刻延迟启动的偏移量，并且起始时刻为当前预配置上行资源的结束位置，从而有利于保证终端每次延迟启动下行搜索空间窗口的偏移量会随着终端与卫星之间的传播距离的不断变化而自适应调整，实现网络设备与终端之间的下行搜索空间窗口的偏移量的自适应调整，以及始终保证网络设备与终端之间在下行搜索空间窗口的偏移量上达成一致。
结合上述描述，下面本申请实施例将对第一配置信息进行具体介绍。
在一个可能的示例中，第一配置信息可以包括以下一种：起始取值索引信息和取值生效时延信息、第一映射关系信息、当前公共时间提前量、当前公共时间提前量变化速率。
具体的，起始取值索引(index)信息可以用于确定取值列表信息中的目标取值，取值列表信息由网络配置；取值生效时延信息可以用于指示终端将目标取值作为当前窗口偏移量的时延；取值列表(list)信息可以用于指示由多个窗口偏移量(即至少两个窗口偏移量)依顺序组成的列表。
需要说明的是，本申请实施例考虑第一配置信息包括起始取值索引信息和取值生效时延信息。由于取值列表信息可以用于指示由多个窗口偏移量依顺序组成的列表，并且取值列表信息中的取值可以用于表示多个窗口偏移量中的窗口偏移量，因此终端可以根据起始取值索引信息确定取值列表信息中的目标取值，再根据取值生效时延信息将目标取值作为当前窗口偏移量。由于第一配置信息和取值列表信息均由网络设备配置，从而进一步保证终端每次延迟启动下行搜索空间窗口的偏移量会随着终端与卫星之间的传播距离的不断变化而自适应调整，实现网络设备与终端之间的下行搜索空间窗口的偏移量的自适应调整，以及始终保证网络设备与终端之间在下行搜索空间窗口的偏移量上达成一致。
进一步的，取值列表信息可以满足以下至少一种方式：取值列表信息中的取值由终端与非地面网络通信系统中的卫星之间的传播距离确定、取值列表信息中取值之间的排列顺序与卫星的运动位置具有对应关系。
需要说明的是，由于卫星相对于地面的距离非常远，因此在一段时间内即便终端存在不断运动(即终端当前所在的位置不断变化)的情况，该终端与卫星之间的传播距离也变化较小。基于此，本申请实施例考虑将一段时间内终端所在的位置近似为固定不变，而主要分析由卫星的位置变化导致终端与卫星之间的传播距离的不断变化。
同时，由于卫星具有固定的运行轨迹(如通过卫星星历表确定其运行轨迹)，因此本申请实施例考虑由网络设备根据卫星的运行轨迹和终端当前所在的位置确定终端与卫星之间的传播距离的集合，再根据该传播距离的集合确定取值列表信息中的每个取值，从而建立终端与卫星之间的传播距离与取值列表信息中的取值之间的映射关系。另外，取值列表信息中取值之间的排列顺序与卫星的运行位置具有对应关系，而该对应关系可以是一一对应的。
具体的，第一映射关系信息可以用于指示终端到非地面网络通信系统中的卫星的传播距离与窗口偏移量之间的映射关系。
需要说明的是，本申请实施例考虑由网络设备根据卫星的运行轨迹和终端当前所在的位置确定终端 与卫星之间的传播距离的集合，再建立该传播距离的集合与多个窗口偏移量之间的映射关系以得到第一映射关系信息，从而由终端根据第一映射关系信息确定出当前窗口偏移量，进一步保证终端每次延迟启动下行搜索空间窗口的偏移量会随着终端与卫星之间的传播距离的不断变化而自适应调整，实现网络设备与终端之间的下行搜索空间窗口的偏移量的自适应调整，以及始终保证网络设备与终端之间在下行搜索空间窗口的偏移量上达成一致。
具体的，当前公共时间提前量可以用于从第二映射关系信息中确定当前窗口偏移量，第二映射关系信息由网络配置；当前公共时间提前量变化速率可以用于确定当前公共时间提前量；第二映射关系信息可以用于指示公共时间提前量与窗口偏移量之间的映射关系。其中，该映射关系可以是一个公共时间提前量的区间对应一个窗口偏移量。
需要说明的是，本申请实施例考虑第一配置信息包括当前公共时间提前量或者当前公共时间提前量变化速率。此时，终端可以根据当前公共时间提前量从第二映射关系信息中确定当前窗口偏移量。或者，终端可以根据当前公共时间提前量变化速率确定当前公共时间提前量，再根据当前公共时间提前量从第二映射关系信息中确定当前窗口偏移量。由于第一配置信息和第二映射关系信息均由网络设备配置，进一步保证终端每次延迟启动下行搜索空间窗口的偏移量会随着终端与卫星之间的传播距离的不断变化而自适应调整，实现网络设备与终端之间的下行搜索空间窗口的偏移量的自适应调整，以及始终保证网络设备与终端之间在下行搜索空间窗口的偏移量上达成一致。
综合上述描述可知，由于第一配置信息包括的信息存在多种情况，因此本申请实施例可以存在多种技术方案以解决如何确定窗口偏移量的问题。下面本申请实施例将从以下情形对该多种技术方案进行具体介绍。
情形一：
在一个可能的示例中，若第一配置信息包括起始取值索引信息和取值生效时延信息，则在网络设备向终端发送第一配置信息之前，该方法还可以包括以下步骤：网络设备向终端发送第一信息，第一信息包括取值列表信息。
在一个可能的示例中，若第一配置信息包括起始取值索引信息和取值生效时延信息，则在终端获取来自网络设备的第一配置信息之前，该方法还可以包括以下步骤：终端获取来自网络设备的第一信息，第一信息包括取值列表信息。
具体的，第一信息可以是由系统广播信息或者RRC专用信令指示的。
需要说明的是，本申请实施例考虑由网络设备通过系统广播信息或者RRC专用信令向终端发送第一信息以获取取值列表信息，也就是说，通过系统广播信息或者RRC专用信令向终端指示或配置取值列表信息。
进一步的，系统广播信息可以包括SIB信息。
在一个可能的示例中，终端根据第一配置信息确定当前窗口偏移量，可以包括以下步骤：终端根据起始取值索引信息从取值列表信息中确定目标取值；在取值生效时延信息超时后，终端将目标取值作为当前窗口偏移量。
需要说明的是，由于取值列表信息可以用于指示由多个窗口偏移量依顺序组成的列表，并且取值列表信息中的取值用于表示多个窗口偏移量中的窗口偏移量，因此终端可以利用起始取值索引信息从取值 列表信息中索引对应位置的取值以得到目标取值，从而将目标取值作为当前窗口偏移量。
另外，由于网络设备配置的取值列表信息中的取值由终端与卫星之间的传播距离确定，而该传播距离又会随卫星的位置变化而变化，因此为了同步网络设备与终端之间的当前窗口偏移量，本申请实施例还考虑由网络设备配置取值生效时延信息。其中，该取值生效时延信息能有效反映卫星的位置变化，并在该取值生效时延信息超时后，才由终端将目标取值作为当前窗口偏移量，从而进一步保证终端每次延迟启动下行搜索空间窗口的偏移量会随着终端与卫星之间的传播距离的不断变化而自适应调整，实现网络设备与终端之间的下行搜索空间窗口的偏移量的自适应调整，以及始终保证网络设备与终端之间在下行搜索空间窗口的偏移量上达成一致。
通过上述描述可知，终端根据起始取值索引信息、取值生效时延信息和取值列表确定出当前窗口偏移量。为此，本申请实施例还考虑如何实现对当前窗口偏移量进行更新的技术方案，下面通过两个子情形进行具体说明。
子情形1：
在一个可能的示例中，第一信息还可以包括更新周期信息；更新周期信息可以用于表示由终端将当前窗口偏移量更新为目标取值于取值列表信息的所在位置的下一个取值的周期，该周期以取值生效时延信息超时的时刻为起始。
可以理解的是，网络设备可以向终端同时配置或指示取值列表信息和更新周期信息。此时，终端可以通过更新周期信息实现对当前窗口偏移量进行周期性的更新。
具体的，该周期的单位可以是毫秒(ms)、子帧(subframe)、帧(frame)、时隙(slot)中的之一，对此不作具体限制。
子情形2：
在一个可能的示例中，在网络设备向终端发送第一配置信息之后，该方法还包括以下步骤：通过MAC CE向终端发送第一指示信息，第一指示信息用于指示终端将当前窗口偏移量更新为目标取值于取值列表信息的所在位置的下一个取值。
在一个可能的示例中，在终端根据第一配置信息确定当前窗口偏移量之后，该方法还包括以下步骤：终端接收来自网络设备的MAC CE以获取第一指示信息，第一指示信息用于指示终端将当前窗口偏移量更新为目标取值于取值列表信息的所在位置的下一个取值。
可以理解的是，网络设备通过下发MAC CE来指示终端将当前窗口偏移量进行更新。
综上所述，下面本申请实施例再将“情形一”中的技术方案总结如下两种方式：
方式一：
对于网络设备，网络设备通过系统广播信息或RRC专用信令向终端发送第一信息。其中，第一信息包括取值列表信息和更新周期信息。然后，网络设备通过RRC专用信令或MAC CE向终端发送第一配置信息。其中，第一配置信息包括起始取值索引信息和取值生效时延信息。
对于终端，首先，终端接收来自网络设备系统广播信息或RRC专用信令以获取第一信息。其中，第一信息包括取值列表信息和更新周期信息。其次，终端接收来自网络设备的RRC专用信令或MAC CE以获取第一配置信息。其中，第一配置信息包括起始取值索引信息和取值生效时延信息。再次，终端根据起始取值索引信息从取值列表信息中确定目标取值，并在取值生效时延信息超时后，将目标取值作为 当前窗口偏移量。最后，终端根据更新周期信息将当前窗口偏移量更新为目标取值于取值列表信息的所在位置的下一个取值。
示例性的，“方式一”可以示例为如图8所示的流程。
方式二：
对于网络设备，网络设备通过系统广播信息或RRC专用信令向终端发送第一信息。其中，第一信息包括取值列表信息。然后，网络设备通过RRC专用信令或MAC CE向终端发送第一配置信息。其中，第一配置信息包括起始取值索引信息和取值生效时延信息。最后，网络设备通过MAC CE向终端发送第一指示信息。
对于终端，首先，终端通过系统广播信息或RRC专用信令获取来自网络设备的第一信息。其中，第一信息包括取值列表信息。其次，终端通过RRC专用信令或MAC CE获取来自网络设备的第一配置信息；其中，第一配置信息包括起始取值索引信息和取值生效时延信息。再次，终端根据起始取值索引信息从取值列表信息中确定目标取值，并在取值生效时延信息超时后，将目标取值作为当前窗口偏移量。最后，终端接收来自网络设备的MAC CE以获取第一指示信息，并根据第一指示信息将当前窗口偏移量更新为目标取值于取值列表信息的所在位置的下一个取值。
示例性的，“方式二”可以示例为如图9所示的流程。
综上所述，下面本申请实施例再将“情形一”中的技术方案进行举例说明。
举例说明1：终端通过系统广播信息或RRC专用信令获取来自网络设备的取值列表信息为{K1,K2,K3,K4,K5}以及更新周期信息为X个子帧。其次，终端通过RRC专用信令或MAC CE获取来自网络设备的起始取值索引信息为2以及取值生效时延信息为Y个子帧。再次，终端通过起始取值索引信息从取值列表信息中得到目标取值K2，并在Y个子帧超时后，将K2作为前窗口偏移量。最后，终端以取值生效时延信息超时后的时刻为起始，在X个子帧之后，将当前窗口偏移量更新为K2于{K1,K2,K3,K4,K5}的所在位置的下一个取值K3。需要说明的是，终端可以以K2为起始，每隔X个子帧，依次更新下一个取值，即第一个X子帧内是K2，第二个X子帧内是K3，以此类推。
举例说明2：终端通过系统广播信息或RRC专用信令获取来自网络设备的取值列表信息为{K1,K2,K3,K4,K5}。其次，终端通过RRC专用信令或MAC CE获取来自网络设备的起始取值索引信息为2以及取值生效时延信息为Y子帧。再次，终端通过起始取值索引信息从取值列表信息中得到目标取值K2，并在Y子帧超时后，将K2作为当前窗口偏移量。最后，终端第一次通过MAC CE获取第一指示信息，并根据第一指示信息将当前窗口偏移量更新为K2于{K1,K2,K3,K4,K5}的所在位置的下一个取值K3。需要说明的是，当终端第二次通过MAC CE获取第一指示信息时，终端将K3更新为K4，以此类推。
情形二：
在一个可能的示例中，若第一配置信息包括第一映射关系信息，则在网络设备向终端发送第一配置信息之前，该方法还可以包括以下步骤：网络设备向终端发送针对PUR传输的第二配置信息，第二配置信息可以包括PUR传输周期信息、PUR传输时机的资源配置信息以及PUR传输资源块与窗口偏移量数之间的映射关系信息。
在一个可能的示例中，若第一配置信息包括第一映射关系信息，则在终端获取来自网络设备的第一 配置信息之前，该方法还包括以下步骤：终端获取来自网络设备针对PUR传输的第二配置信息，第二配置信息包括PUR传输周期信息、PUR传输时机的资源配置信息以及PUR传输资源块与窗口偏移量之间的映射关系信息。
具体的，PUR传输周期信息可以用于指示PUR传输的周期。
具体的，PUR传输时机(occasion)的资源配置信息可以用于指示PUR传输时机所配置的多个RUR传输资源块。其中，该多个PUR传输资源块之间可以是时分或者频分的方式进行区分。
具体的，PUR传输资源块与窗口偏移量之间的映射关系信息可以用于指示PUR传输时机所配置的多个RUR传输资源块与多个窗口偏移量之间的映射关系。其中，该映射关系可以是该多个RUR传输资源块中的每个对应于该多个窗口偏移量中的一个。下面具体通过图10进行示例说明。
示例性的，请参阅图10，在第n次PUR传输时机配置有4个PUR传输资源块，即PUR传输资源块1010、PUR传输资源块1020、PUR传输资源块1030、PUR传输资源块1040。其中，PUR传输资源块1010对应的窗口偏移量为1个子帧；PUR传输资源块1020对应的窗口偏移量为2个子帧；PUR传输资源块1030对应的窗口偏移量为3个子帧；PUR传输资源块1040对应的窗口偏移量为4个子帧。
具体的，第二配置信息可以是由RRC专用信令指示的。
需要说明的是，本申请实施例考虑由网络设备通过RRC专用信令向终端发送第二配置信息以获取PUR传输周期信息、PUR传输时机的资源配置信息以及PUR传输资源块与窗口偏移量之间的映射关系信息。
在一个可能的示例中，终端根据第一配置信息确定当前窗口偏移量，可以包括以下步骤：终端获取第一传播距离信息，第一传播距离信息可以用于指示终端当前所在位置信息与卫星之间的传播距离；终端根据第一传播距离信息从第一映射关系信息中确定当前窗口偏移量。
需要说明的是，由于第一传播距离信息可以用于指示终端当前所在位置信息与卫星之间的传播距离，并且第一映射关系信息可以用于指示终端到卫星的传播距离与窗口偏移量之间的映射关系，因此终端可以通过第一传播距离信息从第一映射关系信息中索引到对应的窗口偏移量以作为当前窗口偏移量，从而进一步保证终端每次延迟启动下行搜索空间窗口的偏移量会随着终端与卫星之间的传播距离的不断变化而自适应调整，实现网络设备与终端之间的下行搜索空间窗口的偏移量的自适应调整，以及始终保证网络设备与终端之间在下行搜索空间窗口的偏移量上达成一致。
具体的，终端获取第一传播距离信息，可以包括以下步骤：终端获取当前所在位置信息；终端根据当前所在位置信息和预设卫星星历表计算得到第一传播距离信息。
需要说明的是，终端可以通过自身的全球导航卫星系统(global navigation satellite system，GNSS)计算得到当前所在位置信息，再通过当前所在位置信息和预设卫星星历表计算得到自身当前所在位置与卫星之间的传播距离。
在一个可能的示例中，在终端根据第一传播距离信息从第一映射关系信息中确定当前窗口偏移量之后，该方法还可以包括以下步骤：终端根据第二配置信息和当前窗口偏移量确定当前PUR传输资源块，并通过当前PUR传输资源块进行上行数据的传输。
需要说明的是，由于PUR传输资源块与窗口偏移量之间的映射关系信息可以用于指示PUR传输时机所配置的多个RUR传输资源块与多个窗口偏移量之间的映射关系，因此终端可以通过当前窗口偏移 量从该映射关系信息中索引到对应的PUR传输资源块以作为当前PUR传输资源块，从而通过当前PUR传输资源块进行上行数据传输以实现PUR传输。
另外，“情形二”中也可以采用“情形一”中网络设备通过下发MAC CE来指示终端将当前窗口偏移量进行更新，在此不再赘述。
综上所述，下面本申请实施例再将“情形二”中的技术方案总结如下：
对于网络设备，网络设备通过RRC专用信令向终端发送针对PUR传输的第二配置信息。其中，第二配置信息包括PUR传输周期信息、PUR传输时机的资源配置信息以及PUR传输资源块与窗口偏移量之间的映射关系信息。然后，网络设备通过RRC专用信令或MAC CE向终端发送第一配置信息。其中，第一配置信息包括第一映射关系信息。
对于终端，首先，终端接收来自网络设备的RRC专用信令以获取针对PUR传输的第二配置信息。其中，第二配置信息包括PUR传输周期信息、PUR传输时机的资源配置信息以及PUR传输资源块与窗口偏移量之间的映射关系信息。其次，终端接收来自网络设备的RRC专用信令或MAC CE以获取第一配置信息。其中，第一配置信息包括第一映射关系信息。再次，终端获取第一传播距离信息，并根据第一传播距离信息从第一映射关系信息中确定当前窗口偏移量。最后，终端根据第二配置信息和当前窗口偏移量确定当前PUR传输资源块，并通过当前PUR传输资源块进行上行数据的传输。
示例性的，“情形二”可以示例为如图11所示的流程。
情形三：
在一个可能的示例中，若第一配置信息包括当前公共时间提前量或者当前公共时间提前量变化速率，则在网络设备向终端发送第一配置信息之前，该方法还可以包括以下步骤：网络设备向终端发送第二映射关系信息。
在一个可能的示例中，若第一配置信息包括当前公共时间提前量或者当前公共时间提前量变化速率，则在终端获取来自网络设备的第一配置信息之前，该方法还可以包括以下步骤：终端获取来自网络设备的第二映射关系信息。
具体的，第二映射关系信息可以是由系统广播信息或者RRC专用信令指示的。
需要说明的是，本申请实施例考虑由网络设备通过系统广播信息或者RRC专用信令向终端发送第二映射关系信息。
在一个可能的示例中，终端根据第一配置信息确定当前窗口偏移量，可以包括以下步骤：终端根据当前公共时间提前量从第二映射关系信息中确定当前窗口偏移量；或者，终端根据当前公共时间提前量变化速率确定当前公共时间提前量；以及终端根据当前公共时间提前量从第二映射关系信息中确定当前窗口偏移量。
需要说明的是，由于第二映射关系信息可以用于指示公共时间提前量与窗口偏移量之间的映射关系，因此终端可以利用当前公共时间提前量从第二映射关系信息中索引到对应的窗口偏移量以作为当前窗口偏移量，从而进一步保证终端每次延迟启动下行搜索空间窗口的偏移量会随着终端与卫星之间的传播距离的不断变化而自适应调整，实现网络设备与终端之间的下行搜索空间窗口的偏移量的自适应调整，以及始终保证网络设备与终端之间在下行搜索空间窗口的偏移量上达成一致。
另外，终端如何根据当前公共时间提前量变化速率确定当前公共时间提前量，可以通过如下公式计 算：
T com＝T 0+α·t；
其中，T com表示当前公共时间提前量；T 0表示初始公共时间提前量，并由网络配置；α表示当前公共时间提前量变化速率；t表示时间大小。
另外，“情形三”中也可以采用“情形一”中网络设备通过下发MAC CE来指示终端将当前窗口偏移量进行更新，在此不再赘述。
综上所述，下面本申请实施例再将“情形三”中的技术方案总结如下两种方式：
方式一：
对于网络设备，网络设备通过系统广播信息或RRC专用信令向终端发送第二映射关系信息。然后，网络设备通过RRC专用信令或MAC CE向终端发送第一配置信息。其中，第一配置信息包括当前公共时间提前量。
对于终端，首先，终端接收来自网络设备的系统广播信息或RRC专用信令以获取第二映射关系信息。其次，终端接收来自网络设备的RRC专用信令或MAC CE以获取第一配置信息。其中，第一配置信息包括当前公共时间提前量。最后，终端根据当前公共时间提前量从第二映射关系信息中确定当前窗口偏移量。
示例性的，“情形三”可以示例为如图12所示的流程。
方式二：
对于网络设备，网络设备通过系统广播信息或RRC专用信令向终端发送第二映射关系信息。然后，网络设备通过系统广播信息或RRC专用信令向终端发送第一配置信息。其中，第一配置信息包括当前公共时间提前量变化速率。
对于终端，首先，终端接收来自网络设备的系统广播信息或RRC专用信令以获取第二映射关系信息。其次，终端接收来自网络设备的系统广播信息或RRC专用信令以获取第一配置信息。其中，第一配置信息包括当前公共时间提前量变化速率。再次，终端根据当前公共时间提前量变化速率确定当前公共时间提前量。最后，终端根据当前公共时间提前量从第二映射关系信息中确定当前窗口偏移量。
示例性的，“情形三”可以示例为如图13所示的流程。
可见，通过上述“情形一”、“情形二”和“情形三”中相关技术描述，本申请实施例可以存在多种技术方案以解决如何确定窗口偏移量的问题，从而有利于保证终端每次延迟启动下行搜索空间窗口的偏移量会随着终端与卫星之间的传播距离的不断变化而自适应调整，实现网络设备与终端之间的下行搜索空间窗口的偏移量的自适应调整，以及始终保证网络设备与终端之间在下行搜索空间窗口的偏移量上达成一致。
上述主要从方法侧中各个网元之间交互的角度对本申请实施例的方案进行了介绍。可以理解的是，终端或网络设备为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件与计算机软件的结合形式来实现。某个功能究竟以硬件或计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对终端或网络设备进行功能单元的划分，例如，可以对应各个功能划分各个功能单元，也可以将两个或两个以上的功能集成在一个处理单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件程序模块的形式实现。需要说明的是，本申请实施例中对单元的划分是示意性的，只是一种逻辑功能划分，而实际实现时可以有另外的划分方式。
在采用集成的单元的情况下，图14提供了一种窗口偏移量确定装置的功能单元组成框图。窗口偏移量确定装置1400应用于非地面网络通信系统中的终端，具体包括：处理单元1402和通信单元1403。处理单元1402用于对终端的动作进行控制管理，例如，处理单元1402用于支持终端执行图7、图8、图9、图11、图12或图13中的步骤以及用于本申请所描述的技术方案的其它过程。通信单元1403用于支持终端与非地面网络通信系统中的其他设备之间的通信。窗口偏移量确定装置1400还可以包括存储单元1401，用于存储终端的程序代码和数据。
其中，处理单元1402可以是处理器或控制器，例如可以是中央处理器(central processing unit，CPU)、通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application-specific integrated circuit，ASIC)、现场可编程门阵列(field programmable gate array，FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框、模块和电路。处理单元1402也可以是实现计算功能的组合，例如包含一个或多个微处理器组合、DSP和微处理器的组合等等。通信单元1403可以是通信接口、收发器、收发电路等，存储单元1401可以是存储器。当处理单元1402为处理器，通信单元1403为通信接口，存储单元1401为存储器时，本申请实施例所涉及的窗口偏移量确定装置1400可以为图16所示的终端。
具体实现时，处理单元1402用于执行如上述方法实施例中由终端执行的任一步骤，且在执行诸如发送等数据传输时，可选择的调用通信单元1403来完成相应操作。下面进行具体说明。
处理单元1402用于：获取来自网络设备的第一配置信息；根据第一配置信息确定当前窗口偏移量，当前窗口偏移量用于表示当前预配置上行资源对应的下行搜索空间窗口以起始时刻延迟启动的偏移量，起始时刻为当前预配置上行资源的结束位置。
需要说明的是，各个操作的具体实现可以详见上述图7、图8、图9、图11、图12或图13所示的方法实施例中的描述，在此不再具体赘述。
可以看出，本申请实施例中，通过获取来网络设备的第一配置信息，并根据该第一配置信息确定当前窗口偏移量。由于当前窗口偏移量用于表示当前预配置上行资源对应的下行搜索空间窗口以起始时刻延迟启动的偏移量，并且起始时刻为当前预配置上行资源的结束位置，从而有利于保证终端每次延迟启动下行搜索空间窗口的偏移量会随着终端与卫星之间的传播距离的不断变化而自适应调整，实现网络设备与终端之间的下行搜索空间窗口的偏移量的自适应调整，以及始终保证网络设备与终端之间在下行搜索空间窗口的偏移量上达成一致。
在一个可能的示例中，第一配置信息是由无线资源控制RRC专用信令、媒体接入控制控制元素MAC CE、系统广播信息中的至少之一指示的。
在一个可能的示例中，所述第一配置信息包括以下一种：起始取值索引信息和取值生效时延信息、第一映射关系信息、当前公共时间提前量、当前公共时间提前量变化速率。
在一个可能的示例中，起始取值索引信息用于确定取值列表信息中的目标取值，取值列表信息由网 络配置；取值生效时延信息用于指示终端将目标取值作为当前窗口偏移量的时延；取值列表信息用于指示由多个窗口偏移量依顺序组成的列表。
在一个可能的示例中，取值列表信息满足以下至少一种方式：取值列表信息中的取值由终端与非地面网络通信系统中的卫星之间的传播距离确定、取值列表信息中取值之间的排列顺序与卫星的运动位置具有对应关系。
在一个可能的示例中，若第一配置信息包括起始取值索引信息和取值生效时延信息，则在获取来自网络设备的第一配置信息之前，处理单元1402还用于：获取来自网络设备的第一信息，第一信息包括取值列表信息。
在一个可能的示例中，第一信息是由系统广播信息或者RRC专用信令指示的。
在一个可能的示例中，在根据第一配置信息确定当前窗口偏移量方面，处理单元1402具体用于：根据起始取值索引信息从取值列表信息中确定目标取值；在取值生效时延信息超时后，将目标取值作为当前窗口偏移量。
在一个可能的示例中，第一信息还包括更新周期信息；更新周期信息用于表示由终端将当前窗口偏移量更新为目标取值于取值列表信息的所在位置的下一个取值的周期，周期以取值生效时延信息超时的时刻为起始。
在一个可能的示例中，在根据第一配置信息确定当前窗口偏移量之后，处理单元1402还用于：接收来自网络设备的MAC CE以获取第一指示信息，第一指示信息用于指示终端将当前窗口偏移量更新为目标取值于取值列表信息的所在位置的下一个取值。
在一个可能的示例中，第一映射关系信息用于指示终端到非地面网络通信系统中的卫星的传播距离与窗口偏移量之间的映射关系。
在一个可能的示例中，若第一配置信息包括第一映射关系信息，则在获取来自网络设备的第一配置信息之前，处理单元1402还用于：获取来自网络设备针对PUR传输的第二配置信息，第二配置信息包括PUR传输周期信息、PUR传输时机的资源配置信息以及PUR传输资源块与窗口偏移量之间的映射关系信息。
在一个可能的示例中，第二配置信息是由RRC专用信令指示的。
在一个可能的示例中，在根据第一配置信息确定当前窗口偏移量方面，处理单元1402具体用于：获取第一传播距离信息，第一传播距离信息用于指示终端当前所在位置信息与卫星之间的传播距离；根据第一传播距离信息从第一映射关系信息中确定当前窗口偏移量。
在一个可能的示例中，在根据第一传播距离信息从第一映射关系信息中确定当前窗口偏移量之后，处理单元1402还用于：根据第二配置信息和当前窗口偏移量确定当前PUR传输资源块，并通过当前PUR传输资源块进行上行数据的传输。
在一个可能的示例中，当前公共时间提前量用于从第二映射关系信息中确定当前窗口偏移量，第二映射关系信息由网络配置；当前公共时间提前量变化速率用于确定当前公共时间提前量；第二映射关系信息用于指示公共时间提前量与窗口偏移量之间的映射关系。
在一个可能的示例中，若第一配置信息包括当前公共时间提前量或者当前公共时间提前量变化速率，则在获取来自所述网络设备的第一配置信息之前，处理单元1402还用于：获取来自网络设备的第二映 射关系信息。
在一个可能的示例中，第二映射关系信息是由系统广播信息或者RRC专用信令指示的。
在一个可能的示例中，在根据第一配置信息确定当前窗口偏移量方面，处理单元1402具体用于：根据当前公共时间提前量从第二映射关系信息中确定当前窗口偏移量；或者，根据当前公共时间提前量变化速率确定当前公共时间提前量；以及根据当前公共时间提前量从第二映射关系信息中确定当前窗口偏移量。
在采用集成的单元的情况下，图15提供了又一种窗口偏移量确定装置的功能单元组成框图。窗口偏移量确定装置1500应用于非地面网络通信系统中的网络设备，具体包括：处理单元1502和通信单元1503。处理单元1502用于对网络设备的动作进行控制管理，例如，处理单元1502用于支持网络设备执行图7、图8、图9、图11、图12或图13中的步骤以及用于本申请所描述的技术方案的其它过程。通信单元1503用于支持网络设备与非地面网络通信系统中的其他设备之间的通信。窗口偏移量确定装置1500还可以包括存储单元1501，用于存储网络设备的程序代码和数据。
其中，处理单元1502可以是处理器或控制器，例如可以是CPU、DSP、ASIC、FPGA或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框、模块和电路。处理单元1502也可以是实现计算功能的组合，例如包含一个或多个微处理器组合、DSP和微处理器的组合等等。通信单元1503可以是通信接口、收发器、收发电路等，存储单元1501可以是存储器。当处理单元1502为处理器，通信单元1503为通信接口，存储单元1501为存储器时，本申请实施例所涉及的窗口偏移量确定装置1500可以为图17所示的网络设备。
具体实现时，处理单元1502用于执行如上述方法实施例中由网络设备执行的任一步骤，且在执行诸如发送等数据传输时，可选择的调用通信单元1503来完成相应操作。下面进行详细说明。
处理单元1502用于：向终端发送第一配置信息，第一配置信息用于确定当前窗口偏移量，当前窗口偏移量用于表示当前预配置上行资源对应的下行搜索空间窗口以起始时刻延迟启动的偏移量，起始时刻为当前预配置上行资源的结束位置。
需要说明的是，各个操作的具体实现可以详见上述图7、图8、图9、图11、图12或图13所示的方法实施例中的描述，在此不再具体赘述。
可以看出，本申请实施例中，通过向终端发送第一配置信息，并且第一配置信息用于确定当前窗口偏移量。由于当前窗口偏移量用于表示当前预配置上行资源对应的下行搜索空间窗口以起始时刻延迟启动的偏移量，并且起始时刻为当前预配置上行资源的结束位置，从而有利于保证终端每次延迟启动下行搜索空间窗口的偏移量会随着终端与卫星之间的传播距离的不断变化而自适应调整，实现网络设备与终端之间的下行搜索空间窗口的偏移量的自适应调整，以及始终保证网络设备与终端之间在下行搜索空间窗口的偏移量上达成一致。
在一个可能的示例中，第一配置信息是由无线资源控制RRC专用信令、媒体接入控制控制元素MAC CE、系统广播信息中的至少之一指示的。
在一个可能的示例中，第一配置信息包括以下一种：起始取值索引信息和取值生效时延信息、第一映射关系信息、当前公共时间提前量、当前公共时间提前量变化速率。
在一个可能的示例中，起始取值索引信息用于确定取值列表信息中的目标取值，取值列表信息由网络配置；取值生效时延信息用于指示终端将目标取值作为当前窗口偏移量的时延；取值列表信息用于指示由多个窗口偏移量依顺序组成的列表。
在一个可能的示例中，取值列表信息满足以下至少一种方式：取值列表信息中的取值由终端与非地面网络通信系统中的卫星之间的传播距离确定、取值列表信息中的取值之间的排列顺序与卫星的运动位置具有对应关系。
在一个可能的示例中，若第一配置信息包括起始取值索引信息和取值生效时延信息，则在向终端发送第一配置信息之前，处理单元1502还用于：向终端发送第一信息，第一信息包括取值列表信息。
在一个可能的示例中，第一信息是由系统广播信息或者RRC专用信令指示的。
在一个可能的示例中，第一信息还包括更新周期信息；更新周期信息用于表示由终端将当前窗口偏移量更新为目标取值于取值列表信息的所在位置的下一个取值的周期，周期以取值生效时延信息超时的时刻为起始。
在一个可能的示例中，在向终端发送第一配置信息之后，处理单元1502还用于：通过MAC CE向终端发送第一指示信息，第一指示信息用于指示终端将当前窗口偏移量更新为目标取值于取值列表信息的所在位置的下一个取值。
在一个可能的示例中，第一映射关系信息用于指示终端到非地面网络通信系统中的卫星的传播距离与窗口偏移量之间的映射关系。
在一个可能的示例中，若第一配置信息包括第一映射关系信息，则在向终端发送第一配置信息之前，处理单元1502还用于：向终端发送针对PUR传输的第二配置信息，第二配置信息包括PUR传输周期信息、PUR传输时机的资源配置信息以及PUR传输资源块与窗口偏移量之间的映射关系信息。
在一个可能的示例中，第二配置信息是由RRC专用信令指示的。
在一个可能的示例中，当前公共时间提前量用于从第二映射关系信息确定当前窗口偏移量，第二映射关系信息由网络配置；当前公共时间提前量变化速率用于确定当前公共时间提前量；第二映射关系信息用于指示公共时间提前量与窗口偏移量之间的映射关系。
在一个可能的示例中，若第一配置信息包括当前公共时间提前量或者当前公共时间提前量变化速率，则在向终端发送第一配置信息之前，处理单元1502还用于：向终端发送第二映射关系信息。
在一个可能的示例中，第二映射关系信息是由系统广播信息或者RRC专用信令指示的。
请参阅图16，图16是本申请实施例提供的一种终端的结构示意图。其中，终端1600包括处理器1610、存储器1620、通信接口1630和至少一个用于连接处理器1610、存储器1620、通信接口1630的通信总线。
存储器1620包括但不限于是随机存储记忆体(random access memory，RAM)、只读存储器(read-only memory，ROM)、可擦除可编程只读存储器(erasable programmable eead only memory，PROM)或便携式只读存储器(compact disc read-only memory,CD-ROM)，该存储器1620用于相关指令及数据。
通信接口1630用于接收和发送数据。
处理器1610可以是一个或多个CPU，在处理器1610是一个CPU的情况下，该CPU可以是单核CPU，也可以是多核CPU。
终端1600中的处理器1610用于读取存储器1620中存储的一个或多个程序1621以执行以下步骤：获取来自网络设备的第一配置信息；根据第一配置信息确定当前窗口偏移量，当前窗口偏移量用于表示当前预配置上行资源对应的下行搜索空间窗口以起始时刻延迟启动的偏移量，起始时刻为当前预配置上行资源的结束位置。
需要说明的是，各个操作的具体实现可以详见上述图7、图8、图9、图11、图12或图13所示的方法实施例中的描述，在此不再具体赘述。
可以看出，本申请实施例中，通过获取来网络设备的第一配置信息，并根据该第一配置信息确定当前窗口偏移量。由于当前窗口偏移量用于表示当前预配置上行资源对应的下行搜索空间窗口以起始时刻延迟启动的偏移量，并且起始时刻为当前预配置上行资源的结束位置，从而有利于保证终端每次延迟启动下行搜索空间窗口的偏移量会随着终端与卫星之间的传播距离的不断变化而自适应调整，实现网络设备与终端之间的下行搜索空间窗口的偏移量的自适应调整，以及始终保证网络设备与终端之间在下行搜索空间窗口的偏移量上达成一致。
在一个可能的示例中，第一配置信息是由无线资源控制RRC专用信令、媒体接入控制控制元素MAC CE、系统广播信息中的至少之一指示的。
在一个可能的示例中，所述第一配置信息包括以下一种：起始取值索引信息和取值生效时延信息、第一映射关系信息、当前公共时间提前量、当前公共时间提前量变化速率。
在一个可能的示例中，起始取值索引信息用于确定取值列表信息中的目标取值，取值列表信息由网络配置；取值生效时延信息用于指示终端将目标取值作为当前窗口偏移量的时延；取值列表信息用于指示由多个窗口偏移量依顺序组成的列表。
在一个可能的示例中，取值列表信息满足以下至少一种方式：取值列表信息中的取值由终端与非地面网络通信系统中的卫星之间的传播距离确定、取值列表信息中取值之间的排列顺序与卫星的运动位置具有对应关系。
在一个可能的示例中，若第一配置信息包括起始取值索引信息和取值生效时延信息，则在获取来自网络设备的第一配置信息之前，处理器1610用于读取存储器1620中存储的一个或多个程序1621还执行以下步骤：获取来自网络设备的第一信息，第一信息包括取值列表信息。
在一个可能的示例中，第一信息是由系统广播信息或者RRC专用信令指示的。
在一个可能的示例中，在根据第一配置信息确定当前窗口偏移量方面，处理器1610用于读取存储器1620中存储的一个或多个程序1621具体执行以下步骤：根据起始取值索引信息从取值列表信息中确定目标取值；在取值生效时延信息超时后，将目标取值作为当前窗口偏移量。
在一个可能的示例中，第一信息还包括更新周期信息；更新周期信息用于表示由终端将当前窗口偏移量更新为目标取值于取值列表信息的所在位置的下一个取值的周期，周期以取值生效时延信息超时的时刻为起始。
在一个可能的示例中，在根据第一配置信息确定当前窗口偏移量之后，处理器1610用于读取存储器1620中存储的一个或多个程序1621还执行以下步骤：接收来自网络设备的MAC CE以获取第一指示信息，第一指示信息用于指示终端将当前窗口偏移量更新为目标取值于取值列表信息的所在位置的下一个取值。
在一个可能的示例中，第一映射关系信息用于指示终端到非地面网络通信系统中的卫星的传播距离与窗口偏移量之间的映射关系。
在一个可能的示例中，若第一配置信息包括第一映射关系信息，则在获取来自网络设备的第一配置信息之前，处理器1610用于读取存储器1620中存储的一个或多个程序1621还执行以下步骤：获取来自网络设备针对PUR传输的第二配置信息，第二配置信息包括PUR传输周期信息、PUR传输时机的资源配置信息以及PUR传输资源块与窗口偏移量之间的映射关系信息。
在一个可能的示例中，第二配置信息是由RRC专用信令指示的。
在一个可能的示例中，在根据第一配置信息确定当前窗口偏移量方面，处理器1610用于读取存储器1620中存储的一个或多个程序1621具体执行以下步骤：获取第一传播距离信息，第一传播距离信息用于指示终端当前所在位置信息与卫星之间的传播距离；根据第一传播距离信息从第一映射关系信息中确定当前窗口偏移量。
在一个可能的示例中，在根据第一传播距离信息从第一映射关系信息中确定当前窗口偏移量之后，处理器1610用于读取存储器1620中存储的一个或多个程序1621还执行以下步骤：根据第二配置信息和当前窗口偏移量确定当前PUR传输资源块，并通过当前PUR传输资源块进行上行数据的传输。
在一个可能的示例中，当前公共时间提前量用于从第二映射关系信息中确定当前窗口偏移量，第二映射关系信息由网络配置；当前公共时间提前量变化速率用于确定当前公共时间提前量；第二映射关系信息用于指示公共时间提前量与窗口偏移量之间的映射关系。
在一个可能的示例中，若第一配置信息包括当前公共时间提前量或者当前公共时间提前量变化速率，则在获取来自所述网络设备的第一配置信息之前，处理器1610用于读取存储器1620中存储的一个或多个程序1621还执行以下步骤：获取来自网络设备的第二映射关系信息。
在一个可能的示例中，第二映射关系信息是由系统广播信息或者RRC专用信令指示的。
在一个可能的示例中，在根据第一配置信息确定当前窗口偏移量方面，处理器1610用于读取存储器1620中存储的一个或多个程序1621具体执行以下步骤：根据当前公共时间提前量从第二映射关系信息中确定当前窗口偏移量；或者，根据当前公共时间提前量变化速率确定当前公共时间提前量；以及根据当前公共时间提前量从第二映射关系信息中确定当前窗口偏移量。
请参阅图17，图17是本申请实施例提供的一种网络设备的结构示意图。其中，网络设备1700包括处理器1710、存储器1720、通信接口1730和至少一个用于连接处理器1710、存储器1720、通信接口1730的通信总线。
存储器1720包括但不限于是RAM、ROM、PROM或CD-ROM，该存储器1720用于存储相关指令及数据。
通信接口1730用于接收和发送数据。
处理器1710可以是一个或多个CPU，在处理器1710是一个CPU的情况下，该CPU可以是单核CPU，也可以是多核CPU。
网络设备1700中的处理器1710用于读取存储器1720中存储的一个或多个程序1721以执行以下步骤：向终端发送第一配置信息，第一配置信息用于确定当前窗口偏移量，当前窗口偏移量用于表示当前预配置上行资源对应的下行搜索空间窗口以起始时刻延迟启动的偏移量，起始时刻为当前预配置上行资 源的结束位置。
需要说明的是，各个操作的具体实现可以详见上述图7、图8、图9、图11、图12或图13所示的方法实施例中的描述，在此不再具体赘述。
可以看出，本申请实施例中，通过向终端发送第一配置信息，并且第一配置信息用于确定当前窗口偏移量。由于当前窗口偏移量用于表示当前预配置上行资源对应的下行搜索空间窗口以起始时刻延迟启动的偏移量，并且起始时刻为当前预配置上行资源的结束位置，从而有利于保证终端每次延迟启动下行搜索空间窗口的偏移量会随着终端与卫星之间的传播距离的不断变化而自适应调整，实现网络设备与终端之间的下行搜索空间窗口的偏移量的自适应调整，以及始终保证网络设备与终端之间在下行搜索空间窗口的偏移量上达成一致。
在一个可能的示例中，第一配置信息是由无线资源控制RRC专用信令、媒体接入控制控制元素MAC CE、系统广播信息中的至少之一指示的。
在一个可能的示例中，第一配置信息包括以下一种：起始取值索引信息和取值生效时延信息、第一映射关系信息、当前公共时间提前量、当前公共时间提前量变化速率。
在一个可能的示例中，起始取值索引信息用于确定取值列表信息中的目标取值，取值列表信息由网络配置；取值生效时延信息用于指示终端将目标取值作为当前窗口偏移量的时延；取值列表信息用于指示由多个窗口偏移量依顺序组成的列表。
在一个可能的示例中，取值列表信息满足以下至少一种方式：取值列表信息中的取值由终端与非地面网络通信系统中的卫星之间的传播距离确定、取值列表信息中的取值之间的排列顺序与卫星的运动位置具有对应关系。
在一个可能的示例中，若第一配置信息包括起始取值索引信息和取值生效时延信息，则在向终端发送第一配置信息之前，处理器1710用于读取存储器1720中存储的一个或多个程序1721还执行以下步骤：向终端发送第一信息，第一信息包括取值列表信息。
在一个可能的示例中，第一信息是由系统广播信息或者RRC专用信令指示的。
在一个可能的示例中，第一信息还包括更新周期信息；更新周期信息用于表示由终端将当前窗口偏移量更新为目标取值于取值列表信息的所在位置的下一个取值的周期，周期以取值生效时延信息超时的时刻为起始。
在一个可能的示例中，在向终端发送第一配置信息之后，处理器1710用于读取存储器1720中存储的一个或多个程序1721还执行以下步骤：通过MAC CE向终端发送第一指示信息，第一指示信息用于指示终端将当前窗口偏移量更新为目标取值于取值列表信息的所在位置的下一个取值。
在一个可能的示例中，第一映射关系信息用于指示终端到非地面网络通信系统中的卫星的传播距离与窗口偏移量之间的映射关系。
在一个可能的示例中，若第一配置信息包括第一映射关系信息，则在向终端发送第一配置信息之前，处理器1710用于读取存储器1720中存储的一个或多个程序1721还执行以下步骤：向终端发送针对PUR传输的第二配置信息，第二配置信息包括PUR传输周期信息、PUR传输时机的资源配置信息以及PUR传输资源块与窗口偏移量之间的映射关系信息。
在一个可能的示例中，第二配置信息是由RRC专用信令指示的。
在一个可能的示例中，当前公共时间提前量用于从第二映射关系信息确定当前窗口偏移量，第二映射关系信息由网络配置；当前公共时间提前量变化速率用于确定当前公共时间提前量；第二映射关系信息用于指示公共时间提前量与窗口偏移量之间的映射关系。
在一个可能的示例中，若第一配置信息包括当前公共时间提前量或者当前公共时间提前量变化速率，则在向终端发送第一配置信息之前，处理器1710用于读取存储器1720中存储的一个或多个程序1721还执行以下步骤：向终端发送第二映射关系信息。
在一个可能的示例中，第二映射关系信息是由系统广播信息或者RRC专用信令指示的。
本申请实施例还提供了一种芯片，其中，该芯片包括处理器，用于从存储器中调用并运行计算机程序，使得安装有所述芯片的设备执行如上述方法实施例中终端或网络设备所描述的部分或全部步骤。
本申请实施例还提供了一种计算机可读存储介质，其中，所述计算机可读存储介质存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如上述方法实施例中终端或网络设备所描述的部分或全部步骤。
本申请实施例还提供了一种计算机程序产品，其中，所述计算机程序产品包括计算机程序，所述计算机程序可操作来使计算机执行如上述方法实施例中终端或网络设备所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
本申请实施例所描述的方法或者算法的步骤可以以硬件的方式来实现，也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于RAM、闪存、ROM、EPROM、EEPROM、寄存器、硬盘、移动硬盘、只读光盘(CD-ROM)或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外，该ASIC可以位于终端或网络设备中。当然，处理器和存储介质也可以作为分立组件存在于终端或网络设备中。
本领域技术人员应该可以意识到，本申请实施例所描述的功能可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行该计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。该计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。该计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输。例如，该计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、DSL)或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。该计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。
以上所述的具体实施方式，对本申请实施例的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本申请实施例的具体实施方式而已，并不用于限定本申请实施例的保护范围，凡在本申请实施例的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本申请实施例的保护范围之内。

Claims (42)

  1. 一种窗口偏移量确定方法，其中，应用于非地面网络通信系统中的终端，所述非地面网络通信系统包括所述终端和网络设备；所述方法包括：
    获取来自所述网络设备的第一配置信息；
    根据所述第一配置信息确定当前窗口偏移量，所述当前窗口偏移量用于表示当前预配置上行资源对应的下行搜索空间窗口以起始时刻延迟启动的偏移量，所述起始时刻为所述当前预配置上行资源的结束位置。
  2. 根据权利要求1所述的方法，其中，所述第一配置信息是由无线资源控制RRC专用信令、媒体接入控制控制元素MAC CE、系统广播信息中的至少之一指示的。
  3. 根据权利要求1或2所述的方法，其中，所述第一配置信息包括以下一种：起始取值索引信息和取值生效时延信息、第一映射关系信息、当前公共时间提前量、当前公共时间提前量变化速率。
  4. 根据权利要求3所述的方法，其中，所述当前公共时间提前量用于从第二映射关系信息中确定所述当前窗口偏移量，所述第二映射关系信息由所述网络配置；
    所述当前公共时间提前量变化速率用于确定所述当前公共时间提前量；
    所述第二映射关系信息用于指示公共时间提前量与窗口偏移量之间的映射关系。
  5. 根据权利要求4所述的方法，其中，若所述第一配置信息包括所述当前公共时间提前量或者所述当前公共时间提前量变化速率，则在所述获取来自所述网络设备的第一配置信息之前，所述方法还包括：
    获取来自所述网络设备的所述第二映射关系信息。
  6. 根据权利要求5所述的方法，其中，所述第二映射关系信息是由系统广播信息或者RRC专用信令指示的。
  7. 根据权利要求5所述的方法，其中，所述根据所述第一配置信息确定当前窗口偏移量，包括：
    根据所述当前公共时间提前量从所述第二映射关系信息中确定所述当前窗口偏移量；或者，
    根据所述当前公共时间提前量变化速率确定所述当前公共时间提前量；以及根据所述当前公共时间提前量从所述第二映射关系信息中确定所述当前窗口偏移量。
  8. 根据权利要求3所述的方法，其中，所述起始取值索引信息用于确定取值列表信息中的目标取值，所述取值列表信息由网络配置；
    所述取值生效时延信息用于指示所述终端将所述目标取值作为所述当前窗口偏移量的时延；
    所述取值列表信息用于指示由多个窗口偏移量依顺序组成的列表。
  9. 根据权利要求8所述的方法，其中，所述取值列表信息满足以下至少一种方式：所述取值列表信息中的取值由所述终端与所述非地面网络通信系统中的卫星之间的传播距离确定、所述取值列表信息中取值之间的排列顺序与所述卫星的运动位置具有对应关系。
  10. 根据权利要求3所述的方法，其中，所述第一映射关系信息用于指示所述终端到所述非地面网络通信系统中的卫星的传播距离与窗口偏移量之间的映射关系。
  11. 一种窗口偏移量确定方法，其中，应用于非地面网络通信系统中的网络设备，所述非地面网络通信系统包括所述网络设备和终端；所述方法包括：
    向所述终端发送第一配置信息，所述第一配置信息用于确定当前窗口偏移量，所述当前窗口偏移量用于表示当前预配置上行资源对应的下行搜索空间窗口以起始时刻延迟启动的偏移量，所述起始时刻为所述当前预配置上行资源的结束位置。
  12. 根据权利要求11所述的方法，其中，所述第一配置信息是由无线资源控制RRC专用信令、媒体接入控制控制元素MAC CE、系统广播信息中的至少之一指示的。
  13. 根据权利要求11或12所述的方法，其中，所述第一配置信息包括以下一种：起始取值索引信息和取值生效时延信息、第一映射关系信息、当前公共时间提前量、当前公共时间提前量变化速率。
  14. 根据权利要求13所述的方法，其中，所述当前公共时间提前量用于从第二映射关系信息确定所述当前窗口偏移量，所述第二映射关系信息由网络配置；
    所述当前公共时间提前量变化速率用于确定所述当前公共时间提前量；
    所述第二映射关系信息用于指示公共时间提前量与窗口偏移量之间的映射关系。
  15. 根据权利要求14所述的方法，其中，若所述第一配置信息包括所述当前公共时间提前量或者所述当前公共时间提前量变化速率，则在所述向所述终端发送第一配置信息之前，所述方法还包括：
    向所述终端发送所述第二映射关系信息。
  16. 根据权利要求14所述的方法，其中，所述第二映射关系信息是由系统广播信息或者RRC专用信令指示的。
  17. 根据权利要求13所述的方法，其中，所述起始取值索引信息用于确定取值列表信息中的目标取值，所述取值列表信息由网络配置；
    所述取值生效时延信息用于指示所述终端将所述目标取值作为所述当前窗口偏移量的时延；
    所述取值列表信息用于指示由多个窗口偏移量次数依顺序组成的列表。
  18. 根据权利要求17所述的方法，其中，所述取值列表信息满足以下至少一种方式：所述取值列表信息中的取值由所述终端与所述非地面网络通信系统中的卫星之间的传播距离确定、所述取值列表信息中的取值之间的排列顺序与所述卫星的运动位置具有对应关系。
  19. 根据权利要求13所述的方法，其中，所述第一映射关系信息用于指示所述终端到所述非地面网络通信系统中的卫星的传播距离与窗口偏移量之间的映射关系。
  20. 一种窗口偏移量确定装置，其中，应用于非地面网络通信系统中的终端，所述非地面网络通信系统包括所述终端和网络设备；所述装置包括处理单元和通信单元，所述处理单元用于：
    通过所述通信单元获取来自所述网络设备的第一配置信息；
    根据所述第一配置信息确定当前窗口偏移量，所述当前窗口偏移量用于表示当前预配置上行资源对应的下行搜索空间窗口以起始时刻延迟启动的偏移量，所述起始时刻为所述当前预配置上行资源的结束位置。
  21. 根据权利要求20所述的装置，其中，所述第一配置信息是由无线资源控制RRC专用信令、媒体接入控制控制元素MAC CE、系统广播信息中的至少之一指示的。
  22. 根据权利要求20或21所述的装置，其中，所述第一配置信息包括以下一种：起始取值索引信息和取值生效时延信息、第一映射关系信息、当前公共时间提前量、当前公共时间提前量变化速率。
  23. 根据权利要求22所述的装置，其中，所述当前公共时间提前量用于从第二映射关系信息中确 定所述当前窗口偏移量，所述第二映射关系信息由所述网络配置；
    所述当前公共时间提前量变化速率用于确定所述当前公共时间提前量；
    所述第二映射关系信息用于指示公共时间提前量与窗口偏移量之间的映射关系。
  24. 根据权利要求23所述的装置，其中，若所述第一配置信息包括所述当前公共时间提前量或者所述当前公共时间提前量变化速率，则在所述获取来自所述网络设备的第一配置信息之前，所述处理单元还用于：
    获取来自所述网络设备的所述第二映射关系信息。
  25. 根据权利要求24所述的装置，其中，所述第二映射关系信息是由系统广播信息或者RRC专用信令指示的。
  26. 根据权利要求24所述的装置，其中，在所述根据所述第一配置信息确定当前窗口偏移量方面，所述处理单元用于：
    根据所述当前公共时间提前量从所述第二映射关系信息中确定所述当前窗口偏移量；或者，
    根据所述当前公共时间提前量变化速率确定所述当前公共时间提前量；以及根据所述当前公共时间提前量从所述第二映射关系信息中确定所述当前窗口偏移量。
  27. 根据权利要求22所述的装置，其中，所述起始取值索引信息用于确定取值列表信息中的目标取值，所述取值列表信息由网络配置；
    所述取值生效时延信息用于指示所述终端将所述目标取值作为所述当前窗口偏移量的时延；
    所述取值列表信息用于指示由多个窗口偏移量依顺序组成的列表。
  28. 根据权利要求27所述的装置，其中，所述取值列表信息满足以下至少一种方式：所述取值列表信息中的取值由所述终端与所述非地面网络通信系统中的卫星之间的传播距离确定、所述取值列表信息中取值之间的排列顺序与所述卫星的运动位置具有对应关系。
  29. 根据权利要求22所述的装置，其中，所述第一映射关系信息用于指示所述终端到所述非地面网络通信系统中的卫星的传播距离与窗口偏移量之间的映射关系。
  30. 一种窗口偏移量确定装置，其中，应用于非地面网络通信系统中的网络设备，所述非地面网络通信系统包括所述网络设备和终端；所述装置包括处理单元和通信单元，所述处理单元用于：
    通过所述通信单元向所述终端发送第一配置信息，所述第一配置信息用于确定当前窗口偏移量，所述当前窗口偏移量用于表示当前预配置上行资源对应的下行搜索空间窗口以起始时刻延迟启动的偏移量，所述起始时刻为所述当前预配置上行资源的结束位置。
  31. 根据权利要求30所述的装置，其中，所述第一配置信息是由无线资源控制RRC专用信令、媒体接入控制控制元素MAC CE、系统广播信息中的至少之一指示的。
  32. 根据权利要求30或31所述的装置，其中，所述第一配置信息包括以下一种：起始取值索引信息和取值生效时延信息、第一映射关系信息、当前公共时间提前量、当前公共时间提前量变化速率。
  33. 根据权利要求32所述的装置，其中，所述当前公共时间提前量用于从第二映射关系信息确定所述当前窗口偏移量，所述第二映射关系信息由网络配置；
    所述当前公共时间提前量变化速率用于确定所述当前公共时间提前量；
    所述第二映射关系信息用于指示公共时间提前量与窗口偏移量之间的映射关系。
  34. 根据权利要求33所述的装置，其中，若所述第一配置信息包括所述当前公共时间提前量或者所述当前公共时间提前量变化速率，则在所述向所述终端发送第一配置信息之前，所述处理单元还用于：
    向所述终端发送所述第二映射关系信息。
  35. 根据权利要求33所述的装置，其中，所述第二映射关系信息是由系统广播信息或者RRC专用信令指示的。
  36. 根据权利要求32所述的装置，其中，所述起始取值索引信息用于确定取值列表信息中的目标取值，所述取值列表信息由网络配置；
    所述取值生效时延信息用于指示所述终端将所述目标取值作为所述当前窗口偏移量的时延；
    所述取值列表信息用于指示由多个窗口偏移量次数依顺序组成的列表。
  37. 根据权利要求36所述的装置，其中，所述取值列表信息满足以下至少一种方式：所述取值列表信息中的取值由所述终端与所述非地面网络通信系统中的卫星之间的传播距离确定、所述取值列表信息中的取值之间的排列顺序与所述卫星的运动位置具有对应关系。
  38. 根据权利要求32所述的装置，其中，所述第一映射关系信息用于指示所述终端到所述非地面网络通信系统中的卫星的传播距离与窗口偏移量之间的映射关系。
  39. 一种终端，其特征在于，包括处理器、存储器、通信接口，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行如权利要求1-10任一项所述的方法中的步骤的指令。
  40. 一种网络设备，其特征在于，包括处理器、存储器、通信接口，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行如权利要求11-19任一项所述的方法中的步骤的指令。
  41. 一种计算机可读存储介质，其特征在于，其存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行如权利要求1-10或11-19中任一项所述的方法。
  42. 一种芯片，包括处理器，其中，所述处理器执行权利要求1-10或11-19中任一项所述方法的步骤。
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