WO2022104602A1 - Ntn中定时提前的上报方法、接收方法、装置及设备 - Google Patents

Ntn中定时提前的上报方法、接收方法、装置及设备 Download PDF

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Publication number
WO2022104602A1
WO2022104602A1 PCT/CN2020/129854 CN2020129854W WO2022104602A1 WO 2022104602 A1 WO2022104602 A1 WO 2022104602A1 CN 2020129854 W CN2020129854 W CN 2020129854W WO 2022104602 A1 WO2022104602 A1 WO 2022104602A1
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WIPO (PCT)
Prior art keywords
message
timing advance
terminal
uplink
information
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PCT/CN2020/129854
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English (en)
French (fr)
Inventor
李海涛
胡奕
于新磊
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to EP20961893.3A priority Critical patent/EP4250806A4/en
Priority to PCT/CN2020/129854 priority patent/WO2022104602A1/zh
Priority to CN202080106896.5A priority patent/CN116391399A/zh
Publication of WO2022104602A1 publication Critical patent/WO2022104602A1/zh
Priority to US18/146,417 priority patent/US20230269686A1/en

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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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0866—Non-scheduled access, e.g. ALOHA using a dedicated channel for access
    • H04W74/0891—Non-scheduled access, e.g. ALOHA using a dedicated channel for access for synchronized access
    • 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 mobile communications, and in particular, to a reporting method, receiving method, apparatus and device for timing advance in a non-terrestrial communication network (Non-Terrestrial Network, NTN).
  • NTN non-Terrestrial Network
  • the random access procedure is a very important procedure in mobile communication.
  • the network device In the random access process, in order to ensure the orthogonality of uplink transmission, the network device requires that the time when signals from different terminals with different frequency domain resources at the same moment reach the network device are basically aligned. In order to ensure the time synchronization on the network device side, the New Radio (New Radio, NR) system supports an uplink timing advance mechanism.
  • New Radio New Radio
  • the terminal can usually estimate the pre-compensation value for sending the random access preamble in the time domain through location information and ephemeris information, etc., but the network device cannot obtain the specific location of the terminal and the pre-compensation value used by the terminal. Therefore, after the random access procedure ends, the network device cannot exactly know the uplink timing advance information of the terminal.
  • Embodiments of the present application provide a method, method, apparatus, and device for reporting timing advance in NTN, so that the network device can dynamically schedule the uplink timing advance information of the terminal by controlling the uplink message reported by the terminal.
  • a method for reporting timing advance in NTN which is applied in a terminal, and the method includes:
  • the indication information is used to instruct the terminal to report or not to report the uplink timing advance information in the uplink message during the random access process, or to indicate whether the terminal is allowed to be in the uplink message in the random access process.
  • the indication information is used to instruct the terminal to report or not to report the uplink timing advance information in the uplink message during the random access process, or to indicate whether the terminal is allowed to be in the uplink message in the random access process.
  • the terminal reports or does not report the uplink timing advance information in the uplink message in the random access process according to the indication information.
  • a method for receiving timing advance in NTN is provided, which is applied to network equipment, and the method includes:
  • a device for reporting timing advance in NTN comprising:
  • the receiving module is used to receive the indication information of the network device, the indication information is used to instruct the terminal to report or not to report the uplink timing advance information in the uplink message in the random access process, or to indicate whether the terminal is allowed to be in the random access process.
  • Uplink timing advance information is reported or not reported in the uplink messages in
  • the reporting module is used for the terminal to report or not to report the uplink timing advance information in the uplink message in the random access process according to the indication information.
  • an apparatus for receiving timing advance in NTN comprising:
  • a sending module configured to send indication information to the terminal, where the indication information is used to instruct the terminal to report or not to report uplink timing advance information in an uplink message in the random access process, or to indicate whether the terminal is allowed to perform random access
  • the uplink timing advance information is reported or not reported in the uplink message during the process
  • the receiving module is used for receiving the uplink message sent by the terminal in the random access process.
  • a terminal comprising a processor, a transceiver connected to the processor and a memory for storing executable instructions of the processor; the processor is configured to load and execute the executable instructions to The method for reporting timing advance in NTN as described above is implemented.
  • a network device includes a processor, a transceiver connected to the processor, and a memory for storing executable instructions of the processor; the processor is configured to load and execute executable instructions Instructions to implement a timing advance reception method in NTN as described above.
  • a computer-readable storage medium where executable instructions are stored in the computer-readable storage medium, and the executable instructions are loaded and executed by a processor to implement timing advance reporting in NTN as described above method, or, as in the NTN of the above aspect, the reception method of timing advance.
  • a chip is provided, the chip includes a programmable logic circuit or a program, and the chip is used to implement the method for reporting timing advance in NTN as in the above aspect, or, as in the above aspect in NTN for timing advance the receiving method.
  • the reporting or non-reporting of timing advance information is controlled by the network device, so that the network device can dynamically schedule the uplink timing advance information of the terminal.
  • the network device does not obtain the uplink timing advance information of the terminal, the message resources occupied by the terminal report are relatively reduced, and the purpose of saving resources is achieved; when the network device obtains the uplink timing advance information of the terminal, the network device can obtain the exact timing of the terminal. advance, so that the purpose of reducing the scheduling delay can be achieved.
  • FIG. 1 is a network architecture diagram of a transparent transmission payload NTN provided by an exemplary embodiment of the present application
  • FIG. 2 is a network architecture diagram of a regeneration load NTN provided by an exemplary embodiment of the present application
  • FIG. 3 is a flowchart of a method for reporting timing advance in NTN provided by an exemplary embodiment of the present application
  • FIG. 4 is a flowchart of a method for reporting timing advance in NTN provided by an exemplary embodiment of the present application
  • FIG. 5 is a flowchart of a method for reporting timing advance in NTN provided by an exemplary embodiment of the present application
  • FIG. 6 is a flowchart of a method for receiving timing advance in NTN provided by an exemplary embodiment of the present application
  • FIG. 7 is a flowchart of a method for receiving timing advance in NTN provided by an exemplary embodiment of the present application.
  • FIG. 8 is a flowchart of a method for receiving timing advance in NTN provided by an exemplary embodiment of the present application.
  • FIG. 9 is a flowchart of a method for reporting/receiving timing advance in NTN provided by an exemplary embodiment of the present application.
  • FIG. 10 is a schematic diagram of a process of reporting and receiving timing advance in NTN provided by an exemplary embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of an apparatus for reporting timing advance in NTN provided by an exemplary embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of an apparatus for receiving timing advance in NTN according to an exemplary embodiment of the present application.
  • FIG. 13 is a block diagram of a communication device shown in an exemplary embodiment of the present application.
  • Satellite communication is not limited by the user's geographical area. For example, general land communication cannot cover areas such as oceans, mountains, deserts, etc. where communication equipment cannot be set up or cannot be covered due to sparse population. For satellite communication, due to a single Satellites can cover a large ground, and satellites can orbit around the earth, so theoretically every corner of the earth can be covered by satellite communications. Secondly, satellite communication has great social value.
  • Satellite communications can be covered at low cost in remote mountainous areas and poor and backward countries or regions, so that people in these regions can enjoy advanced voice communication and mobile Internet technologies, which is conducive to narrowing the digital divide with developed regions and promoting development in these areas.
  • the satellite communication distance is long, and the communication cost does not increase significantly when the communication distance increases; finally, the satellite communication has high stability and is not limited by natural disasters.
  • LEO Low-Earth Orbit
  • MEO Medium-Earth Orbit
  • GEO Geostationary Earth Orbit
  • HEO High Elliptical Orbit
  • the altitude range of low-orbit satellites is 500km to 1500km, and the corresponding orbital period is about 1.5 hours to 2 hours.
  • the signal propagation delay of single-hop communication between users is generally less than 20ms.
  • the maximum satellite viewing time is 20 minutes.
  • the signal propagation distance is short, the link loss is small, and the transmit power requirements of the user terminal are not high.
  • the signal propagation delay of single-hop communication between users is generally 250ms.
  • satellites use multiple beams to cover the ground.
  • a satellite can form dozens or even hundreds of beams to cover the ground; a satellite beam can cover tens to hundreds of kilometers in diameter. ground area.
  • FIG. 1 shows a scenario of transparently transmitting the payload NTN
  • FIG. 2 shows a scenario of regenerating the payload NTN.
  • An NTN network consists of the following network elements:
  • Feeder link The link used for communication between the gateway and the satellite.
  • Service Link The link used for communication between the terminal and the satellite.
  • ⁇ Satellite From the functions it provides, it can be divided into two types: transparent transmission load and regenerative load.
  • ⁇ Transparent load Only provide the functions of wireless frequency filtering, frequency conversion and amplification. It only provides transparent forwarding of the signal, and does not change the waveform signal it forwards.
  • ⁇ Regeneration load In addition to providing the functions of radio frequency filtering, frequency conversion and amplification, it can also provide functions of demodulation/decoding, routing/conversion, encoding/modulation. It has some or all of the functions of a network device.
  • Inter-satellite links exist in the regenerative load scenario.
  • the network device 16 may be a base station, which is a device for providing a wireless communication function for a terminal.
  • the base station may include various forms of macro base station, micro base station, relay station, access point and so on.
  • the names of devices with base station functions may be different.
  • eNodeBs or eNBs In LTE systems, they are called eNodeBs or eNBs; in 5G NR-U systems, they are called gNodeBs or gNBs.
  • the description of "base station” may change.
  • the above-mentioned apparatuses that provide the terminal 14 with a wireless communication function are collectively referred to as network equipment.
  • the random access process refers to the process from when the terminal attempts to access the network after sending the random access preamble until the basic signaling connection is established with the network.
  • the random access process is used to enable the terminal to establish data communication with the network side.
  • two types of random access procedures are mainly supported, namely, the random access procedure of type 1 and the random access procedure of type 2.
  • Type 1 random access procedure (four-step random access procedure).
  • the random access procedure of type 1 mainly includes the following steps:
  • Step 1 the terminal sends a message 1 (msg1): a random access preamble (preamble) to the network device.
  • msg1 a random access preamble (preamble)
  • the terminal sends the selected random access preamble on the time-frequency resource of the selected Physical Random Access Channel (PRACH).
  • the network device can estimate the uplink delay (Timing) based on the random access preamble, and the terminal Grant size required to transmit message 3.
  • Step 2 the network device sends a message 2 (msg2): a random access response (Random Access Response, RAR) to the terminal.
  • msg2 a message 2
  • RAR Random Access Response
  • a random access response window (RAR window) is opened, and the Physical Downlink Control Channel (PDCCH) is monitored in the random access response window.
  • the PDCCH is a PDCCH scrambled with a random access radio network temporary identifier (Random Access Radio Network Temporary Identifier, RA-RNTI).
  • the terminal After successfully monitoring the PDCCH scrambled by the RA-RNTI, the terminal can obtain the Physical Downlink Share Channel (PDSCH) scheduled by the PDCCH, and the PDSCH contains the RAR.
  • PDSCH Physical Downlink Share Channel
  • the RAR includes: Backoff Indicator (BI), used to indicate the backoff time of retransmission message 1; Random Access Preamble Identifier (RAPID), used to indicate the random access preamble; Timing Advance group (Time Advance Group, TAG), used to adjust the uplink timing; uplink grant (UL grant), used to schedule the uplink resource indication of message 3; Temporary Cell-Radio Network Temporary Identity, Temporary C - RNTI), used to scramble the PDCCH (Initial Access) of message 4.
  • BI Backoff Indicator
  • RAPID Random Access Preamble Identifier
  • TAG Timing Advance Group
  • uplink grant UL grant
  • Temporary Cell-Radio Network Temporary Identity Temporary C - RNTI
  • Step 3 the terminal sends a message 3 (msg3) to the network device: scheduling transmission.
  • Message 3 is mainly used to notify the network device of an event that triggers the random access procedure.
  • the event is an initial access random process
  • the UE ID and establishment cause will be carried in message 3; if the event is RRC re-establishment, the connected UE identity and establishment cause will be carried. .
  • Step 4 the network device sends a message 4 (msg4) to the terminal: a contention resolution message.
  • Message 4 is used for conflict resolution.
  • Step 5 the terminal sends a message 5 (msg5) to the network device: the connection establishment is complete (complete).
  • Message 5 is mainly used to notify the network device that the connection establishment of random access is completed.
  • Type 2 random access procedure two-step random access procedure.
  • the 4-step (4-step) random access procedure may be combined into a 2-step (2-step) random access procedure.
  • the combined 2-step random access process includes message A and message B, and the relevant steps include:
  • Step 1 the terminal sends a message A (msgA) to the network device.
  • Step 2 after receiving the message A sent by the terminal, the network device sends a message B (msgB) to the terminal.
  • message A includes the contents of message 1 and message 3, that is, message A includes: random access preamble and UE ID, and UE ID can be: C-RNTI, temporary C-RNTI, RA-RNTI, contactless One of the UE IDs of the entry layer (Non-Access Stratum, NAS).
  • message B includes the contents of the message 2 and the message 4, that is, the message B includes: a random access response and a contention resolution message.
  • FIG. 3 shows a flowchart of a method for reporting timing advance in NTN provided by an exemplary embodiment of the present application.
  • the method is applied to a terminal as an example for illustration.
  • the terminal is an NTN capable terminal.
  • the method includes:
  • Step 302 The terminal receives the indication information of the network device.
  • the indication information is the signaling sent by the network device to the terminal.
  • the indication information is used to instruct the terminal to report or not to report the uplink timing advance information in the uplink message in the random access process, or to indicate whether the terminal is allowed to report or not to report in the uplink message in the random access process. Report uplink timing advance information.
  • the indication information is carried in radio resource control (Radio Resource Control, RRC) dedicated signaling, or the indication information is carried in system message broadcast.
  • RRC Radio Resource Control
  • the uplink message in the random access procedure includes any one of the following messages:
  • the message 3 in the random access process of type 1 is mainly used to notify the network device of an event that triggers the random access process, and the message 3 carries the UE ID and the establishment reason, or carries the UE identifier and the establishment reason; type 1
  • the message 5 in the random access process is mainly used to notify the network equipment that the connection establishment of the random access is completed;
  • the message A in the random access process of type 2 includes the random access preamble and the UE ID, and the UE ID can be C- One of RNTI, Temporary C-RNTI, RA-RNTI, and Non-Access Stratum (NAS) UE ID.
  • NAS Non-Access Stratum
  • the indication information may be used to indicate only a certain message, or may be used to indicate all messages.
  • the indication information can be divided into the following two types:
  • the indication information respectively indicates a certain uplink message in the random access process.
  • the indication information is used to indicate whether the terminal reports uplink timing advance information through message 3;
  • the indication information is used to indicate whether the terminal reports uplink timing advance information through message 5;
  • the indication information is used to indicate whether the terminal reports uplink timing advance information through message A;
  • the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through message 3;
  • the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through message 5;
  • the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through message A.
  • the indication information uniformly indicates all uplink messages or any uplink messages in the random access process.
  • the indication information is used to indicate whether the terminal reports uplink timing advance information through any one of message 3, message 5 and message A;
  • the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through any one of message 3, message 5 and message A.
  • the basis for deciding whether to allow reporting of uplink timing advance information is made by the network device. demand made.
  • the network device determines the above indication information according to the configuration of the serving cell of the terminal, wherein the configuration of the serving cell of the terminal includes the related configuration of random access resources.
  • the network device may also decide whether to allow reporting of uplink timing advance information according to at least one of the coverage of the serving cell, the relative distance between the terminal and the satellite, and the relative distance between the terminal and the network device. For example, when judging that the coverage of the serving cell is small, the network device indicates in the indication information that the uplink timing advance information is not allowed to be reported.
  • the network device sends RRC dedicated signaling to the terminal, and the RRC dedicated signaling carries indication information, and the indication information is used to indicate whether the terminal reports uplink timing advance information through message 3 .
  • the network device sends a system message broadcast to the terminal, and the system message broadcast carries indication information, which is used to indicate whether the terminal is allowed to report uplink timing advance information through any one of message 3, message 5 and message A.
  • Step 304 The terminal reports or does not report the uplink timing advance information in the uplink message in the random access process according to the indication information.
  • the nearby terminal sends the uplink message in advance.
  • the uplink timing advance information is carried in the uplink message and refers to a relative value sent by the terminal to the network device to indicate the phase position of the terminal.
  • the uplink timing advance information includes at least one of the following information:
  • the uplink TA value is determined according to the distance from the terminal to the satellite.
  • the RTD value is obtained according to the real-time dynamic code phase difference technology.
  • the principle of this technology is: the network device or satellite sends the pseudorange (or coordinate) correction value (also called the difference value) to the terminal, and the terminal according to the correction value and itself to estimate the precise location of the terminal. Therefore, the RTD value can obtain the precise position of the terminal in real time and dynamically, and has the function of relative positioning.
  • the first RTD value is obtained by the satellite sending the pseudorange (or coordinate) correction value (also referred to as a differential value) to the terminal
  • the second TRD value is the pseudorange (or coordinate) correction value obtained by the network device. (also called differential value) sent to the terminal.
  • the common RTD value refers to the minimum delay duration between the terminal in the cell and the network device, and the minimum delay duration is determined by the delay duration between the terminal and the network device corresponding to the satellite overtiming Decide.
  • the sum of the common RTD value and the delta value is equal to the second RTD value.
  • the network device sends RRC dedicated signaling to the terminal, and the RRC dedicated signaling carries indication information, which indicates that the terminal can be allowed to report uplink timing advance information through message 3; In the uplink message in the process, the first RTD value is reported through message 3.
  • the network device sends a system message broadcast to the terminal, and the system message broadcast carries indication information, and the indication information is used to indicate that the terminal is not allowed to report uplink timing advance information through any one of message 3, message 5 and message A; According to the indication information, the terminal does not report the uplink timing advance information in the uplink message during the random access process.
  • the network device controls the reporting or non-reporting of the timing advance information, so that the network device can dynamically schedule the uplink timing advance information of the terminal.
  • the network device does not obtain the uplink timing advance information of the terminal, the message resources occupied by the terminal report are relatively reduced, and the purpose of saving resources is achieved; when the network device obtains the uplink timing advance information of the terminal, the network device can obtain the exact timing of the terminal. advance, so that the purpose of reducing the scheduling delay can be achieved.
  • the terminal in the process of reporting the timing advance in NTN, the terminal generates a specific uplink message according to the instruction of the indication information, and the uplink message may carry the uplink timing advance information of the terminal, or may not carry the uplink timing advance information of the terminal.
  • the terminal can choose at least one of the following methods to report uplink messages in the random access process:
  • the indication information is used to instruct the terminal to report or not to report the uplink timing advance information in the uplink message in the random access process.
  • the method is applied to a terminal as an example.
  • the terminal is a terminal that supports NTN.
  • the method includes:
  • Step 402 The terminal receives the indication information of the network device.
  • the indication information is used to instruct the terminal to report or not to report the uplink timing advance information in the uplink message in the random access process.
  • the indication information is carried in the RRC dedicated signaling, or the indication information is carried in the system message broadcast.
  • the uplink message in the random access process includes any one of the following messages:
  • the indication information may be used to indicate only a certain message, or may be used to indicate all messages.
  • the indication information can be divided into the following two types:
  • the indication information respectively indicates a certain uplink message in the random access process.
  • the indication information is used to indicate whether the terminal reports uplink timing advance information through message 3;
  • the indication information is used to indicate whether the terminal reports uplink timing advance information through message 5;
  • the indication information is used to indicate whether the terminal reports uplink timing advance information through message A.
  • the indication information uniformly indicates all uplink messages or any uplink messages in the random access process.
  • the indication information is used to indicate whether the terminal reports uplink timing advance information through any one of message 3, message 5 and message A.
  • Step 403 When the indication information is used to instruct the terminal not to report the uplink timing advance information in the uplink message, the terminal does not report the uplink timing advance information in the uplink message in the random access process.
  • Step 404 When the indication information is used to instruct the terminal to report the uplink timing advance information in the uplink message, the terminal reports the uplink timing advance information in the uplink message in the random access process.
  • the terminal will carry the control element (Media Access Control Control Element, MAC CE) of the uplink TA in combination with other data to be transmitted, according to the logical channel.
  • MAC CE Media Access Control Control Element
  • the priority level encapsulates one or more MAC CEs, a final transmitted protocol data unit (MAC Protocol Data Unit, MAC PDU) is generated, and an uplink message carrying uplink timing advance information is reported in the random access process.
  • MAC Protocol Data Unit MAC Protocol Data Unit
  • the network device sends RRC dedicated signaling to the terminal, and the RRC dedicated signaling carries indication information, which indicates that the terminal can report uplink timing advance information through message 3;
  • the uplink timing advance information is reported through message 3, and the uplink timing advance information is the second RTD value.
  • steps 403 and 404 can be performed, and cannot be performed simultaneously; or, after step 403 is performed first, step 404 is performed according to the updated instruction information; or, after step 404 is performed first, according to the updated instruction information and then perform step 403.
  • the indication information is used to indicate whether the terminal is allowed to report or not to report the uplink timing advance information in the uplink message during the random access process.
  • the method is applied to a terminal as an example.
  • the terminal is a terminal that supports NTN.
  • the method includes:
  • Step 502 The terminal receives the indication information of the network device.
  • the indication information is used to indicate whether the terminal is allowed to report or not to report the uplink timing advance information in the uplink message in the random access process.
  • the indication information is carried in the RRC dedicated signaling, or the indication information is carried in the system message broadcast.
  • the uplink message in the random access process includes any one of the following messages:
  • the indication information may be used to indicate only a certain message, or may be used to indicate all messages.
  • the indication information can be divided into the following two types:
  • the indication information respectively indicates a certain uplink message in the random access process.
  • the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through message 3;
  • the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through message 5;
  • the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through message A.
  • the indication information uniformly indicates all uplink messages or any uplink messages in the random access process.
  • the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through any one of message 3, message 5 and message A.
  • Step 503 When the indication information is used to indicate that the uplink timing advance information is not allowed to be reported in the uplink message, the terminal does not report the uplink timing advance information in the uplink message in the random access process.
  • Step 504 In the case where the indication information is used to indicate that the uplink timing advance information is allowed to be reported in the uplink message, the terminal decides whether to perform uplink in the random access process according to at least one of the logical channel priority and the uplink scheduling grant. The uplink timing advance information is reported in the message.
  • the terminal is based on at least one of the logical channel priority and the uplink scheduling grant information. Two decisions can be made as follows:
  • the terminal reports uplink timing advance information under the following conditions:
  • the data to be transmitted includes at least one of uplink data and MACCE, and uplink timing advance information is carried in a certain MACCE.
  • steps 503 and 504 can be performed, and cannot be performed simultaneously; or, after step 503 is performed first, step 504 is performed according to the updated instruction information; or, after step 504 is performed first, according to the updated instruction information. and then perform step 503.
  • the network device controls the reporting or non-reporting of the timing advance information, so that the network device can dynamically schedule the uplink timing advance information of the terminal.
  • the network device does not obtain the uplink timing advance information of the terminal, the message resources occupied by the terminal report are relatively reduced, and the purpose of saving resources is achieved; when the network device obtains the uplink timing advance information of the terminal, the network device can obtain the exact timing of the terminal. advance, so that the purpose of reducing the scheduling delay can be achieved.
  • an embodiment of the present application provides a method for receiving timing advance in NTN, and the receiving method includes the following steps:
  • Step 602 The network device sends indication information to the terminal;
  • the indication information is the signaling sent by the network device to the terminal.
  • the indication information is used to instruct the terminal to report or not to report the uplink timing advance information in the uplink message in the random access process, or to indicate whether the terminal is allowed to report or not to report in the uplink message in the random access process.
  • Report uplink timing advance information is carried in the RRC dedicated signaling, or the indication information is carried in the system message broadcast.
  • the uplink message in the random access process includes any one of the following messages:
  • the message 3 in the random access process of type 1 is mainly used to notify the network device of an event that triggers the random access process, and the message 3 carries the UE ID and the establishment reason, or carries the UE identifier and the establishment reason; type 1
  • the message 5 in the random access process of type 2 is mainly used to notify the network equipment that the connection establishment of random access is completed;
  • the message A in the random access process of type 2 includes the random access preamble and the UE ID, and the UE ID can be C- One of RNTI, Temporary C-RNTI, RA-RNTI, and Non-Access Stratum (NAS) UE ID.
  • NAS Non-Access Stratum
  • the indication information may be used to indicate only a certain message, or may be used to indicate all messages.
  • the indication information can be divided into the following two types:
  • the indication information respectively indicates a certain uplink message in the random access process.
  • the indication information is used to indicate whether the terminal reports uplink timing advance information through message 3;
  • the indication information is used to indicate whether the terminal reports uplink timing advance information through message 5;
  • the indication information is used to indicate whether the terminal reports uplink timing advance information through message A;
  • the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through message 3;
  • the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through message 5;
  • the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through message A.
  • the indication information uniformly indicates all uplink messages or any uplink messages in the random access process.
  • the indication information is used to indicate whether the terminal reports uplink timing advance information through any one of message 3, message 5 and message A;
  • the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through any one of message 3, message 5 and message A.
  • the basis for deciding whether to allow reporting of uplink timing advance information is made by the network device. demand made.
  • the network device determines the above indication information according to the configuration of the serving cell of the terminal, wherein the configuration of the serving cell of the terminal includes the related configuration of random access resources.
  • the network device may also decide whether to allow reporting of uplink timing advance information according to at least one of the coverage of the serving cell, the relative distance between the terminal and the satellite, and the relative distance between the terminal and the network device. For example, when judging that the coverage of the serving cell is small, the network device indicates in the indication information that the uplink timing advance information is not allowed to be reported.
  • the network device sends RRC dedicated signaling to the terminal, and the RRC dedicated signaling carries indication information, and the indication information is used to indicate whether the terminal reports uplink timing advance information through message 5 .
  • the network device sends a system message broadcast to the terminal, and the system message broadcast carries indication information, which is used to indicate whether the terminal is allowed to report uplink timing advance information through any one of message 3, message 5 and message A.
  • Step 604 The network device receives the uplink message sent by the terminal in the random access process.
  • the uplink message may carry the uplink timing advance information of the terminal, or may not carry the uplink timing advance information of the terminal.
  • the uplink timing advance information includes at least one of the following information:
  • the network device sends RRC dedicated signaling to the terminal, and the RRC dedicated signaling carries indication information, which indicates that uplink timing advance information can be allowed to be reported through message 5;
  • the first RTD value is reported in the uplink message in .
  • the network device sends a system message broadcast to the terminal, and the system message broadcast carries indication information, which is used to indicate that the uplink timing advance information is not allowed to be reported through any one of message 3, message 5 and message A; the terminal According to the indication information, the uplink timing advance information is not reported in the uplink message in the random access process.
  • the network device controls the reporting or non-reporting of the timing advance information, so that the network device can dynamically schedule the uplink timing advance information of the terminal.
  • the network device does not obtain the uplink timing advance information of the terminal, the message resources occupied by the terminal report are relatively reduced, and the purpose of saving resources is achieved; when the network device obtains the uplink timing advance information of the terminal, the network device can obtain the exact timing of the terminal. advance, so that the purpose of reducing the scheduling delay can be achieved.
  • the network device can select at least one of the following two methods to receive the data sent by the terminal.
  • Upstream message :
  • the indication information is used to instruct the terminal to report or not to report the uplink timing advance information in the uplink message in the random access process.
  • an embodiment of the present application provides another method for receiving timing advance in NTN.
  • the steps of the receiving method are as follows:
  • Step 702 The network device indicates information to the terminal.
  • the indication information is used to instruct the terminal to report or not to report the uplink timing advance information in the uplink message in the random access process.
  • the indication information is carried in the RRC dedicated signaling, or the indication information is carried in the system message broadcast.
  • the uplink message in the random access process includes any one of the following messages:
  • the indication information may be used to indicate only a certain message, or may be used to indicate all messages.
  • the indication information can be divided into the following two types:
  • the indication information respectively indicates a certain uplink message in the random access process.
  • the indication information is used to indicate whether the terminal reports uplink timing advance information through message 3;
  • the indication information is used to indicate whether the terminal reports uplink timing advance information through message 5;
  • the indication information is used to indicate whether the terminal reports uplink timing advance information through message A.
  • the indication information uniformly indicates all uplink messages or any uplink messages in the random access process.
  • the indication information is used to indicate whether the terminal reports uplink timing advance information through any one of message 3, message 5 and message A.
  • Step 704 The network device receives the uplink message sent by the terminal in the random access process.
  • the uplink message may carry the uplink timing advance information of the terminal, or may not carry the uplink timing advance information of the terminal.
  • the uplink timing advance information includes at least one of the following information:
  • the network device sends RRC dedicated signaling to the terminal, and the RRC dedicated signaling carries indication information, which instructs the terminal to report uplink timing advance information through message A;
  • the first RTD value is reported through message A in the uplink message of .
  • the network device sends a system message broadcast to the terminal, and the system message broadcast carries indication information, which is used to instruct the terminal not to report uplink timing advance information through any one of message 3, message 5, and message A; According to the indication information, the uplink timing advance information is not reported in the uplink message in the random access process.
  • Step 705 When the indication information is used to instruct the terminal not to report the uplink timing advance information in the uplink message, the network device does not acquire the uplink timing advance information in the uplink message in the random access process.
  • Step 706 When the indication information is used to instruct the terminal to report the uplink timing advance information in the uplink message, the network device acquires the uplink timing advance information in the uplink message in the random access process.
  • steps 705 and 706 can be performed, and cannot be performed simultaneously; or, after step 705 is performed first, step 706 is performed according to the updated instruction information; or, after step 706 is performed first, according to the updated instruction information and then perform step 705.
  • the indication information is used to indicate whether the terminal is allowed to report or not to report the uplink timing advance information in the uplink message in the random access process.
  • an embodiment of the present application provides another method for receiving timing advance in NTN.
  • the steps of the receiving method are as follows:
  • Step 802 The network device indicates information to the terminal.
  • the indication information is used to instruct the terminal to report or not to report the uplink timing advance information in the uplink message in the random access process, or to indicate whether the terminal is allowed to report or not to report in the uplink message in the random access process.
  • Report uplink timing advance information is carried in the RRC dedicated signaling, or the indication information is carried in the system message broadcast.
  • the uplink message in the random access process includes any one of the following messages:
  • the indication information may be used to indicate only a certain message, or may be used to indicate all messages.
  • the indication information can be divided into the following two types:
  • the indication information respectively indicates a certain uplink message in the random access process.
  • the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through message 3;
  • the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through message 5;
  • the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through message A.
  • the indication information uniformly indicates all uplink messages or any uplink messages in the random access process.
  • the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through any one of message 3, message 5 and message A.
  • Step 804 The network device receives the uplink message sent by the terminal in the random access process.
  • the uplink message may carry the uplink timing advance information of the terminal, or may not carry the uplink timing advance information of the terminal.
  • the uplink timing advance information includes at least one of the following information:
  • Increment value relative to the common RTD value.
  • Step 805 When the indication information is used to indicate that the uplink timing advance information is not allowed to be reported in the uplink message, the network device does not acquire the uplink timing advance information in the uplink message during the random access process.
  • Step 806 When the indication information is used to indicate that the uplink timing advance information is allowed to be reported in the uplink message, the network device acquires the uplink timing advance information in the uplink message in the random access process.
  • the terminal in the case where the indication information is used to indicate that the uplink timing advance information is allowed to be reported in the uplink message, in the uplink message in the random access process, the terminal is based on at least one information in the logical channel priority and the uplink scheduling grant. Two decisions can be made as follows:
  • the terminal reports uplink timing advance information under the following conditions:
  • the data to be transmitted includes at least one of uplink data and MACCE, and the uplink timing advance information is carried in a certain MACCE.
  • steps 805 and 806 can be performed, and cannot be performed simultaneously; or, after step 805 is performed first, step 806 is performed according to the updated instruction information; or, after step 806 is performed first, according to the updated instruction information. Step 805 is executed again after the instruction information.
  • the network device controls the reporting or non-reporting of the timing advance information, so that the network device can dynamically schedule the uplink timing advance information of the terminal.
  • the network device does not obtain the uplink timing advance information of the terminal, the message resources occupied by the terminal report are relatively reduced, and the purpose of saving resources is achieved; when the network device obtains the uplink timing advance information of the terminal, the network device can obtain the exact timing of the terminal. advance, so that the purpose of reducing the scheduling delay can be achieved.
  • an embodiment of the present application provides a method for reporting/receiving timing advance in NTN.
  • This embodiment is exemplified by the method being executed by a terminal and a network device, and the method includes the following steps:
  • Step 901 The network device sends indication information to the terminal.
  • Step 902 The terminal receives the indication information sent by the network device.
  • Step 903 The terminal determines, according to the indication information, to report or not to report the uplink timing advance information in the uplink message in the random access process.
  • Step 904 The terminal generates an uplink message in the random access process.
  • the indication information is used to instruct the terminal to report or not to report the uplink timing advance information in the uplink message in the random access process, or to indicate whether the terminal is allowed to report or not to report in the uplink message in the random access process. Report uplink timing advance information.
  • the uplink message in the random access process includes any one of the following messages:
  • the indication information may be used to indicate only a certain message, or may be used to indicate all messages.
  • the indication information can be divided into the following two types:
  • the indication information respectively indicates a certain message.
  • the indication information is used to instruct the terminal to report uplink timing advance information through message 3;
  • the indication information is used to instruct the terminal to report uplink timing advance information through message 5;
  • the indication information is used to instruct the terminal to report uplink timing advance information through message A;
  • the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through message 3;
  • the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through message 5;
  • the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through message A.
  • the indication information is used to instruct the terminal to report uplink timing advance information through any one of message 3, message 5 and message A;
  • the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through any one of message 3, message 5 and message A.
  • the network device sends RRC dedicated signaling to the terminal, the signaling carries instruction information, and the instruction information allows the uplink timing advance information to be reported through message 3; after the terminal receives the instruction information, it is determined according to the instruction information.
  • the uplink timing advance information is reported in the uplink message in the process, and the uplink message including the uplink timing advance information is generated.
  • Step 905 The terminal sends an uplink message in the random access process to the network device.
  • Step 906 The network device receives the uplink message in the random access process sent by the terminal.
  • Step 907 The network device determines, according to the prompt information, whether to acquire uplink timing advance information in the reporting message in the random access process.
  • the uplink timing advance information includes at least one of the following information:
  • the terminal According to the indication information that allows reporting of uplink timing advance information through message 5, the terminal generates an uplink message of the random access process. Subsequently, the terminal sends the uplink message to the network device, and the uplink timing advance information included in the uplink message is the second RTD value.
  • the reporting/receiving process of timing advance in NTN depends on whether the network device allows the terminal to report uplink timing advance information through message A. There are two cases, as follows:
  • Case 1 The network device does not allow the terminal to report uplink timing advance information through message A.
  • Step 1011 The network device sends indication information to the terminal.
  • the indication information indicates that the terminal is not allowed to report the uplink timing advance information of the terminal through the message A in the uplink message in the random access process.
  • Step 1021 The terminal performs TA compensation on the sending time of the uplink message.
  • Step 1031 The terminal sends a message A to the network device.
  • the terminal performs TA compensation on the sending time according to the estimated pre-compensation value, and sends message A to the network device at the sending time after the TA compensation has been performed. Since the network device does not allow the terminal to report the uplink timing advance information through message A, the uplink message generated by the terminal does not include the uplink timing advance information. That is, the message A sent by the terminal to the network device does not report the MAC CE that carries the uplink timing advance information of the terminal.
  • Step 1041 The network device determines the TA adjustment amount of the terminal.
  • Step 1051 The network device sends message B to the terminal.
  • the network device obtains the MAC CE that does not carry the uplink timing advance information of the terminal. According to message A, the network device will adjust the TA of the terminal, generate and send message B to the terminal, and the TA of the terminal carried in message B is not adjusted according to the uplink timing advance information of the terminal.
  • Step 1061 The terminal adjusts the TA based on the instruction of the message B.
  • the terminal After receiving the message B sent by the network device, the terminal adjusts the sending time of the uplink message of the terminal correspondingly according to the TA value carried in the message B.
  • Case 2 The network device allows the terminal to report uplink timing advance information through message A.
  • Step 1012 The network device sends indication information to the terminal.
  • the indication information indicates that the terminal is not allowed to report the uplink timing advance information of the terminal through the message A in the uplink message in the random access process.
  • Step 1022 The terminal performs TA compensation on the sending time of the uplink message.
  • the terminal performs TA compensation on the sending time according to the estimated pre-compensation value, and sends message A to the network device at the sending time after the TA compensation has been performed. Since the network device allows the terminal to report the uplink timing advance information through the message A, the uplink message generated by the terminal may include the uplink timing advance information. That is, the MAC CE carrying the uplink timing advance information of the terminal may be reported in the message A sent by the terminal to the network device.
  • Step 1042 Determine the TA adjustment amount of the terminal.
  • Step 1052 The network device sends message B to the terminal.
  • the network device obtains the MAC CE that carries the uplink timing advance information of the terminal. According to message A, the network device will adjust the TA of the terminal, generate and send message B, and the TA of the terminal carried in message B is the TA value adjusted according to the uplink timing advance information of the terminal.
  • Step 1062 The terminal adjusts the TA based on the instruction of the message B.
  • the terminal After receiving the message B sent by the network device, the terminal correspondingly adjusts the sending time of the uplink message of the terminal according to the TA value carried in the message B.
  • the method for reporting/receiving timing advance in NTN controls the reporting or non-reporting of timing advance information by the network device, so that the network device can dynamically schedule the uplink timing advance information of the terminal.
  • the network device does not obtain the uplink timing advance information of the terminal, the message resources occupied by the terminal report are relatively reduced, and the purpose of saving resources is achieved; when the network device obtains the uplink timing advance information of the terminal, the network device can obtain the exact timing of the terminal. advance, so that the purpose of reducing the scheduling delay can be achieved.
  • an embodiment of the present application provides an apparatus for reporting timing advance in NTN, and the apparatus can be implemented as all or a part of a terminal. Or can be applied in the terminal.
  • the terminal may be an NTN capable terminal.
  • the device includes:
  • the receiving module 1120 is configured to receive the indication information of the network device, where the indication information is used to instruct the terminal to report or not to report the uplink timing advance information in the uplink message during the random access process, or to indicate whether the terminal is allowed to randomly
  • the uplink timing advance information is reported or not reported in the uplink message during the access process
  • the reporting module 1140 is configured to report or not report the uplink timing advance information in the uplink message in the random access process according to the indication information.
  • the uplink message in the random access process includes any one of the following: message 3 in the random access process of type 1; message 5 in the random access process of type 1; type 2 message A in the random access procedure.
  • the indication information is used to indicate whether the terminal reports uplink timing advance information through message 3; or the indication information is used to indicate whether the terminal reports uplink timing advance information through message 5; or the indication information is used to Indicates whether the terminal reports uplink timing advance information through message A; or, the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through message 3; or the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through message 5; Or, the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through message A.
  • the indication information is used to indicate whether the terminal reports uplink timing advance information through any one of message 3, message 5 and message A; or, the indication information is used to indicate whether the terminal is allowed to pass message 3 Any one of message 5 and message A reports uplink timing advance information.
  • the indication information is carried in RRC dedicated signaling; or, the indication information is carried in system message broadcast.
  • the uplink timing advance information includes at least one of the following: an uplink TA value; the first RTD value between the terminal and the satellite; the second RTD value between the terminal and the network device; Increment value of RTD value.
  • the reporting module 1140 is further configured to: in the case where the indication information is used to instruct the terminal not to report uplink timing advance information in the uplink message, the terminal in the random access process uplink The uplink timing advance information is not reported in the message; when the indication information is used to instruct the terminal to report the uplink timing advance information in the uplink message, the terminal reports the uplink timing advance information in the uplink message in the random access process.
  • the reporting module 1140 is further configured to: when the indication information is used to indicate that the terminal is not allowed to report uplink timing advance information in the uplink message, the terminal in the random access process The uplink timing advance information is not reported in the uplink message; when the indication information is used to indicate that the terminal is allowed to report the uplink timing advance information in the uplink message, the terminal decides whether to The uplink timing advance information is reported in the uplink message in the random access process.
  • an embodiment of the present application provides an apparatus for receiving timing advance in NTN, and the apparatus may be implemented as all or a part of a terminal. Or can be applied in the terminal.
  • the terminal may be an NTN capable terminal.
  • the device includes:
  • the sending module 1220 is configured to send indication information to the terminal, where the indication information is used to instruct the terminal to report or not to report the uplink timing advance information in the uplink message in the random access process, or to indicate whether the terminal is allowed to perform random access in the uplink message.
  • the uplink timing advance information is reported or not reported in the uplink message during the incoming process;
  • the receiving module 1240 is configured to receive the uplink message sent by the terminal in the random access process.
  • the acquiring module 1260 is configured to: in the case where the indication information is used to instruct the terminal not to report the uplink timing advance information in the uplink message, the terminal does not acquire the uplink timing advance information in the uplink message in the random access process; In the case of instructing the terminal to report the uplink timing advance information in the uplink message, the terminal acquires the uplink timing advance information in the uplink message in the random access process.
  • the uplink message in the random access process includes any one of the following: message 3 in the random access process of type 1; message 5 in the random access process of type 1; type 2 message A in the random access procedure.
  • the indication information is used to indicate whether the terminal reports uplink timing advance information through message 3; or the indication information is used to indicate whether the terminal reports uplink timing advance information through message 5; or the indication information is used to Indicates whether the terminal reports uplink timing advance information through message A; or, the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through message 3; or the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through message 5; Or, the indication information is used to indicate whether the terminal is allowed to report uplink timing advance information through message A.
  • the indication information is used to indicate whether the terminal reports uplink timing advance information through any one of message 3, message 5 and message A; or, the indication information is used to indicate whether the terminal is allowed to pass message 3 Any one of message 5 and message A reports uplink timing advance information.
  • the indication information is carried in RRC dedicated signaling; or, the indication information is carried in system message broadcast.
  • the uplink timing advance information includes at least one of the following: an uplink TA value; the first RTD value between the terminal and the satellite; the second RTD value between the terminal and the network device; Increment value of RTD value.
  • the obtaining module 1260 is further configured to: when the indication information is used to indicate that the terminal is not allowed to report the uplink timing advance information in the uplink message, the network device in the random access process The uplink timing advance information is not acquired in the uplink message of the network device; when the indication information is used to indicate that the terminal is allowed to report the uplink timing advance information in the uplink message, the network device acquires the uplink timing advance information in the uplink message in the random access process.
  • FIG. 13 shows a schematic structural diagram of a communication device (terminal or network device) provided by an exemplary embodiment of the present application.
  • the communication device includes a processor 1301 , a receiver 1302 , a transmitter 1303 , a memory 1304 and a bus 1305 .
  • the processor 1301 includes one or more processing cores, and the processor 1301 executes various functional applications and information processing by running software programs and modules.
  • the receiver 1302 and the transmitter 1303 may be implemented as a communication component, which may be a communication chip.
  • the memory 1304 is connected to the processor 1301 through the bus 1305 .
  • the memory 1304 may be configured to store at least one instruction, and the processor 1301 is configured to execute the at least one instruction to implement various steps of the method for reporting timing advance and the method for receiving timing advance in the NTN mentioned in the above method embodiments.
  • memory 1304 may be implemented by any type or combination of volatile or non-volatile storage devices including, but not limited to, magnetic or optical disks, electrically erasable programmable Read Only Memory (Electrically-Erasable Programmable Read Only Memory, EEPROM), Erasable Programmable Read Only Memory (EPROM), Static Random Access Memory (SRAM), Read Only Memory (Read-Only Memory, ROM), magnetic memory, flash memory, programmable read-only memory (Programmable Read-Only Memory, PROM).
  • volatile or non-volatile storage devices including, but not limited to, magnetic or optical disks, electrically erasable programmable Read Only Memory (Electrically-Erasable Programmable Read Only Memory, EEPROM), Erasable Programmable Read Only Memory (EPROM), Static Random Access Memory (SRAM), Read Only Memory (Read-Only Memory, ROM), magnetic memory, flash memory, programmable read-only memory (Programmable Read-Only Memory, PROM).
  • a terminal comprising a processor, a transceiver connected to the processor, and a memory for storing executable instructions for the processor, the processor being configured to load and execute the executable instructions In order to realize the above-mentioned reporting method of timing advance in NTN.
  • a network device including a processor, a transceiver coupled to the processor, and a memory for storing executable instructions for the processor.
  • the processor is configured to load and execute executable instructions to implement the method for receiving timing advance in NTN as described above.
  • a chip is provided, the chip includes a programmable logic circuit or a program, and the chip is used to implement the method for reporting timing advance in NTN as in the above aspect, or, as in the above aspect in NTN for timing advance the receiving method.
  • a computer-readable storage medium is also provided, and executable instructions are stored in the readable storage medium, and the executable instructions are loaded and executed by the processor to achieve The above-mentioned method for reporting timing advance in NTN, or the above-mentioned method for receiving timing advance in NTN.

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Abstract

本申请公开了一种NTN中定时提前的上报方法、接收方法、装置及设备，涉及移动通信领域。所述NTN中定时提前的上报方法包括：接收网络设备的指示信息，指示信息用于指示终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息，或者，用于指示是否允许终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息；终端根据所述指示信息在所述随机接入过程中的上行消息中上报或不上报上行定时提前信息。本申请提供的NTN中定时提前的上报方法，使得网络设备可以动态调度终端的上行定时提前信息。

Description

NTN中定时提前的上报方法、接收方法、装置及设备 技术领域
本申请涉及移动通信领域，特别涉及一种非地面通信网络(Non-Terrestrial Network，NTN)中定时提前的上报方法、接收方法、装置及设备。
背景技术
随机接入过程是移动通信中非常重要的一个过程。
随机接入过程中，为保证上行传输的正交性，网络设备要求来自同一时刻但不同频域资源的不同终端的信号达到网络设备的时间基本上是对齐的。为保证网络设备侧的时间同步，新空口(New Radio，NR)系统中支持上行定时提前的机制。
终端通常可以通过位置信息和星历信息等来估计在时域上发送随机接入前导码的预补偿值，但网络设备无法获取终端的具体位置和终端采用的预补偿值。因此，在随机接入过程结束后，网络设备并不能确切知道终端的上行定时提前信息。
发明内容
本申请实施例提供了一种NTN中定时提前的上报方法、接收方法、装置及设备，使得网络设备可以通过控制终端上报的上行消息，动态调度终端的上行定时提前信息。
根据本申请的一个方面，提供了一种NTN中定时提前的上报方法，应用于终端中，所述方法包括：
接收网络设备的指示信息，指示信息用于指示终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息，或者，用于指示是否允许终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息；
终端根据指示信息在随机接入过程中的上行消息中上报或不上报上行定时提前信息。
根据本申请的一个方面，提供了一种NTN中定时提前的接收方法，应用于网络设备中，所述方法包括：
向终端发送指示信息，指示信息用于指示终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息，或者，用于指示是否允许终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息；
接收终端在随机接入过程中发送的上行消息。
根据本申请的一个方面，提供了一种NTN中定时提前的上报装置，装置包括：
接收模块，用于接收网络设备的指示信息，指示信息用于指示终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息，或者，用于指示是否允许终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息；
上报模块，用于终端根据指示信息在随机接入过程中的上行消息中上报或不上报上行定时提前信息。
根据本申请的一个方面，提供了一种NTN中定时提前的接收装置，装置包括：
发送模块，用于向终端发送指示信息，指示信息用于指示终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息，或者，用于指示是否允许所述终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息；
接收模块，用于接收终端在随机接入过程中发送的上行消息。
根据本申请的一个方面，提供了一种终端，终端包括处理器，与处理器相连的收发器和用于存储处理器的可执行指令的存储器；处理器被配置为加载并执行可执行指令以实现如上述方面的NTN中定时提前的上报方法。
根据本申请的一个方面，提供了一种网络设备，网络设备包括处理器，与处理器相连的收发器和用于存储处理器的可执行指令的存储器；处理器被配置为加载并执行可执行指令以实现如上述方面的NTN中定时提前的接收方法。
根据本申请的一个方面，提供了一种计算机可读存储介质，计算机可读存储介质中存储有可执行指令，可执行指令由处理器加载并执行以实现如上述方面的NTN中定时提前的上报方法，或，如上述方面的NTN中定时提前的接收方法。
根据本申请的一个方面，提供了一种芯片，该芯片包括可编程逻辑电路或程序，该芯片用于实现如上述方面的NTN中定时提前的上报方法，或，如上述方面的NTN中定时提前的接收方法。
本申请实施例提供的技术方案至少包括如下有益效果：
通过网络设备控制定时提前信息的上报或者不上报，使得网络设备可以动态调度终端的上行定时提前信息。在网络设备不获取终端的上行定时提前信息时，相对减少了终端上报占用的消息资源，实现了节省资源的目的；在网络设备获取终端的上行定时提前信息时，网络设备能够得到终端确切的定时提前量，从而可以实现了减小调度时延的目的。
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是本申请一个示例性实施例提供的透传载荷NTN的网络架构图；
图2是本申请一个示例性实施例提供的再生载荷NTN的网络架构图；
图3是本申请一个示例性实施例提供的NTN中定时提前的上报方法的流程图；
图4是本申请一个示例性实施例提供的NTN中定时提前的上报方法的流程图；
图5是本申请一个示例性实施例提供的NTN中定时提前的上报方法的流程图；
图6是本申请一个示例性实施例提供的NTN中定时提前的接收方法的流程图；
图7是本申请一个示例性实施例提供的NTN中定时提前的接收方法的流程图；
图8是本申请一个示例性实施例提供的NTN中定时提前的接收方法的流程图；
图9是本申请一个示例性实施例提供的NTN中定时提前的上报/接收方法的流程图；
图10是本申请一个示例性实施例提供的NTN中定时提前的上报和接收的过程示意图；
图11是本申请一个示例性实施例提供的NTN中定时提前的上报装置的结构示意图；
图12是本申请一个示例性实施例示出的NTN中定时提前的接收装置的结构示意图；
图13是本申请一个示例性实施例示出的通信设备的框图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请实施方式作进一步地详细描述。
目前第三代合作伙伴项目(Third Generation Partnership Project，3GPP)正在研究NTN技术，NTN技术一般采用卫星通信的方式向地面用户提供通信服务。相比地面蜂窝网通信，卫星通信具有很多独特的优点。首先，卫星通信不受用户地域的限制，例如一般的陆地通信不能覆盖海洋、高山、沙漠等无法搭设通信设备或由于人口稀少而不做通信覆盖的区域，而对于卫星通信来说，由于一颗卫星即可以覆盖较大的地面，加之卫星可以围绕地球做轨道运动，因此理论上地球上每一个角落都可以被卫星通信覆盖。其次，卫星通信有较大的社会价值。卫星通信在边远山区、贫穷落后的国家或地区都可以以较低的成本覆盖到，从而使这些地区的人们享受到先进的语音通信和移动互联网技术，有利于缩小与发达地区的数字鸿沟，促进这些地区的发展。再次，卫星通信距离远，且通信距离增大通讯的成本没有明显增加；最后，卫星通信的稳定性高，不受自然灾害的限制。
通信卫星按照轨道高度的不同分为低地球轨道(Low-Earth Orbit，LEO)卫星、中地球轨道(Medium-Earth Orbit，MEO)卫星、地球同步轨道(Geostationary Earth Orbit，GEO)卫星、高椭圆轨道(High Elliptical Orbit，HEO)卫星等等。目前阶段主要研究的是LEO和GEO。
1.LEO
低轨道卫星高度范围为500km～1500km，相应轨道周期约为1.5小时～2小时。用户间单跳通信的信号传播延迟一般小于20ms。最大卫星可视时间20分钟。信号传播距离短，链路损耗少，对用户终端的发射功率要求不高。
2.GEO
地球同步轨道卫星，轨道高度为35786km，围绕地球旋转周期为24小时。用户间单跳通信的信号传播延迟一般为250ms。
为了保证卫星的覆盖以及提升整个卫星通信系统的系统容量，卫星采用多波束覆盖地面，一颗卫星可以形成几十甚至数百个波束来覆盖地面；一个卫星波束可以覆盖直径几十至上百公里的地面区域。
存在至少两种NTN场景：透传载荷NTN和再生载荷NTN。图1示出了透传载荷NTN的场景，图2示出了再生载荷NTN的场景。
NTN网络由以下网元组成:
·1个或者多个网关，用于连接卫星和地面公共网络。
·馈线链路：用于网关和卫星之间通信的链路。
·服务链路：用于终端和卫星之间通信的链路。
·卫星：从其提供的功能上可以分为透传载荷和再生载荷这两种。
·透传载荷：只提供无线频率滤波，频率转换和放大的功能。只提供信号的透明转发，不会改变其转发的波形信号。
·再生载荷：除了提供无线频率滤波，频率转换和放大的功能，还可以提供解调/解码，路由/转换，编码/调制的功能。其具有网络设备的部分或者全部功能。
·星间链路(Inter-satellite links，ISL)：存在于再生载荷场景下。
示意性的如图1和图2所示，NTN的两种场景下，网络设备16可以是基站，基站是一种用于为终端提供无线通信功能的装置。基站可以包括各种形式的宏基站，微基站，中继站，接入点等等。在采用不同的无线接入技术的系统中，具备基站功能的设备的名称可能会有所不同，例如在LTE系统中，称为eNodeB或者eNB；在5G NR-U系统中，称为gNodeB或者gNB。随着通信技术的演进，“基站”这一描述可能会变化。本申请实施例中，上述为终端14提供无线通信功能的装置统称为网络设备。
随机接入过程是指从终端发送随机接入前导码开始尝试接入网络到与网络间建立起基本的信令连接之前的过程，随机接入过程用于使终端与网络侧建立数据通信。在NR中，主要支持两种类型的随机接入过程，分别是类型1的随机接入过程和类型2的随机接入过程。
一、类型1的随机接入过程(四步随机接入过程)。
类型1的随机接入过程主要包括如下步骤：
步骤1，终端向网络设备发送消息1(msg1)：随机接入前导码(preamble)。
终端在选择的物理随机接入信道(Physical Random Access Channel，PRACH)的时频资源上发送选择的随机接入前导码，网络设备基于随机接入前导码可以估计上行时延(Timing)，和终端传输消息3所需要的授权(grant)大小。
步骤2，网络设备向终端发送消息2(msg2)：随机接入响应(Random Access Response，RAR)。
终端发送消息1(msg1)之后,开启一个随机接入响应窗口(RAR window)，在该随机接入响应窗口内监测物理下行控制信道(Physical Downlink Control Channel，PDCCH)。该PDCCH是用随机接入无线网络临时标识符(Random Access Radio Network Temporary Identifier，RA-RNTI)加扰的PDCCH。
成功监测到RA-RNTI加扰的PDCCH之后，终端能够获得该PDCCH调度的物理下行共享信道(Physical Downlink Share Channel，PDSCH)，PDSCH中包含RAR。
RAR中包含：回退指示(Backoff Indicator，BI)，用于指示重传消息1的回退时间；随机接入前导标识(Radom Access Preamble Identifier，RAPID)，用于指示随机接入前导码；定时提前组(Time Advance Group，TAG)，用于调整上行时序；上行授权(UL grant)，用于调度消息3的上行资源指示；临时小区无线网络临时标识(Temporary Cell-Radio Network Temporary Identity，Temporary C-RNTI)，用于加扰消息4的PDCCH(初始接入)。
步骤3，终端向网络设备发送消息3(msg3)：调度传输。
消息3主要用于通知网络设备触发该随机接入过程的事件。示例性的，如果事件是初始接入随机过程，则在消息3中会携带UE ID和建立原因(establishment cause)；如果事件是RRC重建，则会携带连接态UE标识和建立原因(establishment cause)。
步骤4，网络设备向终端发送消息4(msg4)：竞争解决消息。消息4用于冲突解决。
步骤5，终端向网络设备发送消息5(msg5)：连接建立完成(complete)。
消息5主要用于通知网络设备随机接入的连接建立完成。
二、类型2的随机接入过程(两步随机接入过程)。
在基于竞争的随机接入过程中，可以将4步(4-step)的随机接入过程合并成2步(2-step)的随机接入过程。合并后的2步随机接入过程包括消息A和消息B，相关步骤包括：
步骤1，终端向网络设备发送消息A(msgA)。
步骤2，网络设备接收到终端发送的消息A后，向终端发送消息B(msgB)。
可选地，消息A包括消息1和消息3的内容，也即消息A包括：随机接入前导码和UE ID，UE ID可以是：C-RNTI、临时C-RNTI、RA-RNTI、非接入层(Non-Access Stratum，NAS)UE ID中的一种。可选地，消息B包括消息2和消息4的内容，也即消息B包括：随机接入响应和竞争解决消息。
图3示出了本申请一个示例性实施例提供的NTN中定时提前的上报方法的流程图。本实施例以该方法应用于终端中来举例说明。可选地，终端是支持NTN的终端。该方法包括：
步骤302：终端接收网络设备的指示信息。
指示信息是网络设备向终端发送的信令。示意性的，指示信息用于指示终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息，或者，用于指示是否允许终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息。
示意性的，指示信息携带在无线资源控制(Radio Resource Control，RRC)专有信令中，或，指示信息携带在系统消息广播中。
示意性的，根据前述两种类型的随机接入过程的阐述，随机接入过程中的上行消息包括如下消息中的任意一种：
类型1的随机接入过程中的消息3；
类型1的随机接入过程中的消息5；
类型2的随机接入过程中消息A。
其中，类型1的随机接入过程中的消息3主要用于通知网络设备触发随机接入过程的事件，消息3中携带有UE ID和建立原因，或者是携带有UE标识和建立原因；类型1的随机接入过程中的消息5主要用于通知网络设备随机接入的连接建立完成；类型2的随机接入过程中的消息A包括随机接入前导码和UE ID，UE ID可以是C-RNTI、临时C-RNTI、RA-RNTI、非接入层(Non-Access Stratum，NAS)UE ID中的一种。
根据上行消息的分类，指示信息可以用于仅指示某一消息，也可以用于指示所有消息。示意性的，根据作用的不同，指示信息可分为如下两种类型：
(1)指示信息分别指示随机接入过程中的某一个上行消息。
指示信息用于指示终端是否通过消息3上报上行定时提前信息；
或，指示信息用于指示终端是否通过消息5上报上行定时提前信息；
或，指示信息用于指示终端是否通过消息A上报上行定时提前信息；
或，指示信息用于指示是否允许终端通过消息3上报上行定时提前信息；
或，指示信息用于指示是否允许终端通过消息5上报上行定时提前信息；
或，指示信息用于指示是否允许终端通过消息A上报上行定时提前信息。
(2)指示信息统一指示随机接入过程中的所有上行消息或任意上行消息。
指示信息用于指示终端是否通过消息3、消息5和消息A中的任意一种上报上行定时提前信息；
或，指示信息用于指示是否允许终端通过消息3、消息5和消息A中的任意一种上报上行定时提前信息。
采用上述两种类型中的任意一种的指示信息，其决定是否允许上报上行定时提前信息的依据由网络设备做出，该决定可以是网络设备根据任意与随机接入过程相关的配置信息或运行需求做出的。
示意性的，网络设备根据终端的服务小区的配置决定上述指示信息，其中，终端的服务小区的配置包括随机接入资源的相关配置。示意性的，网络设备还可以根据服务小区覆盖范围、终端与卫星的相对距离、终端与网络设备的相对距离中的至少一种决定是否允许上报上行定时提前信息。比如，网络设备在判断得到服务小区覆盖范围较小时，在指示信息中指示不允许上报上行定时提前信息。
比如，网络设备向终端发送RRC专有信令，RRC专有信令中携带有指示信息，该指示信息用于指示终端是否通过消息3上报上行定时提前信息。又如，网络设备向终端发送系统消息广播，系统消息广播中携带有指示信息，该指示信息用于指示是否允许终端通过消息3、消息5和消息A中的任意一种上报上行定时提前信息。
根据前述内容，对于随机接入过程中的其他消息的接收和发送过程不再赘述。
步骤304：终端根据指示信息在随机接入过程中的上行消息中上报或不上报上行定时提前信息。
由于终端向网络设备发送的上行消息到达网络设备的时间受到距离等因素的影响，导致信号传输存在延时，为保证网络设备侧的时间同步，对于距离网络设备较远的终端通常需要比距离较近的终端提前发送上行消息。上行定时提前信息携带在在上行消息中，是指终端向网络设备发送的用于指示终端的相位位置的相对值。
示意性的，上行定时提前信息包括如下信息中的至少一种：
上行定时提前(Time Advance，TA)值；
终端到卫星之间的第一往返时延(Round Trip Delay，RTD)值；
终端到网络设备之间的第二RTD值；
相对于公共RTD值的增量值。
其中，上行TA值是根据终端到卫星的距离决定。RTD值是根据实时动态码相位差分技术得到的，该技术的原理是：网络设备或卫星将伪距(或坐标)修正值(也可称为差分值)发送到终端，终端根据修正值和本身的观测值估算出终端的精确位置。因此，RTD值可以实时、动态地获取到终端的精确位 置，具有相对定位的作用。示意性的，第一RTD值是指卫星将伪距(或坐标)修正值(也可称为差分值)发送到终端得到的，第二TRD值是网络设备将伪距(或坐标)修正值(也可称为差分值)发送到终端得到的。另外，在一个示例性的实施例中，公共RTD值是指小区内的终端与网络设备之间的最小延迟时长，该最小延迟时长以卫星过定时对应的终端与网络设备之间的延迟时长来决定。示意性的，公共RTD值与增量值之和等于第二RTD值。
比如，网络设备向终端发送RRC专有信令，RRC专有信令中携带有指示信息，该指示信息指示可以允许终端通过消息3上报上行定时提前信息；终端根据该指示信息，在随机接入过程中的上行消息中通过消息3上报第一RTD值。
又如，网络设备向终端发送系统消息广播，系统消息广播中携带有指示信息，该指示信息用于指示不允许终端通过消息3、消息5和消息A中的任意一种上报上行定时提前信息；终端根据该指示信息，在随机接入过程中的上行消息中不上报上行定时提前信息。
综上所述，本实施例提供的方法，通过网络设备控制定时提前信息的上报或者不上报，使得网络设备可以动态调度终端的上行定时提前信息。在网络设备不获取终端的上行定时提前信息时，相对减少了终端上报占用的消息资源，实现了节省资源的目的；在网络设备获取终端的上行定时提前信息时，网络设备能够得到终端确切的定时提前量，从而可以实现了减小调度时延的目的。
根据上述内容，终端在进行NTN中定时提前的上报过程中，根据指示信息的指令生成具体的上行消息，该上行消息中可以携带终端的上行定时提前信息，也可以不携带终端的上行定时提前信息。根据指示信息的分类，终端可选择如下方法中的至少一种上报随机接入过程中的上行消息：
一、指示信息用于指示终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息。
示意性的如图4所示，以该方法应用于终端中来举例说明，可选地，终端是支持NTN的终端。该方法包括：
步骤402：终端接收网络设备的指示信息。
示意性的，指示信息用于指示终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息。示意性的，指示信息携带在RRC专有信令中，或，指示信息携带在系统消息广播中。
示意性的，随机接入过程中的上行消息包括如下消息中的任意一种：
类型1的随机接入过程中的消息3；
类型1的随机接入过程中的消息5；
类型2的随机接入过程中消息A。
根据上行消息的分类，指示信息可以用于仅指示某一消息，也可以用于指示所有消息。示意性的，根据作用的不同，指示信息可分为如下两种类型：
(1)指示信息分别指示随机接入过程中的某一个上行消息。
指示信息用于指示终端是否通过消息3上报上行定时提前信息；
或，指示信息用于指示终端是否通过消息5上报上行定时提前信息；
或，指示信息用于指示终端是否通过消息A上报上行定时提前信息。
(2)指示信息统一指示随机接入过程中的所有上行消息或任意上行消息。
指示信息用于指示终端是否通过消息3、消息5和消息A中的任意一种上报上行定时提前信息。
根据前述内容，对于随机接入过程中的其他消息的接收和发送过程不再赘述。
步骤403：在指示信息用于指示终端在上行消息中不上报上行定时提前信息的情况下，终端在随机接入过程中的上行消息中不上报上行定时提前信息。
步骤404：在指示信息用于指示终端在上行消息中上报上行定时提前信息的情况下，终端在随机接入过程中的上行消息中上报上行定时提前信息。
示意性的，若指示信息中指示终端在上行消息中上报上行定时提前信息，则终端将携带有上行TA的控制元素(Media Access Control Control Element，MAC CE)结合其他待传输的数据，按照逻辑信道优先级将一个或多个MAC CE封装后，生成最终传输的协议数据单元(MAC Protocol Data Unit，MAC PDU)，在随机接入过程中上报携带有上行定时提前信息的上行消息。
比如，网络设备向终端发送RRC专有信令，RRC专有信令中携带有指示信息，该指示信息指示终端可以通过消息3上报上行定时提前信息；终端根据该指示信息，在随机接入过程中的上行消息中通过消息3上报上行定时提前信息，该上行定时提前信息为第二RTD值。
示意性的，步骤403和步骤404只能执行其一，不能同时执行；或者，先执行步骤403后，根据更新后的指示信息再执行步骤404,；或者，先执行步骤404后，根据更新后的指示信息再执行步骤403。
二、指示信息用于指示是否允许终端在随机接入过程中的上行消息中上报或不上报上行定时提前 信息。
示意性的如图5所示，以该方法应用于终端中来举例说明，可选地，终端是支持NTN的终端。该方法包括：
步骤502：终端接收网络设备的指示信息。
示意性的，指示信息用于指示是否允许终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息。示意性的，指示信息携带在RRC专有信令中，或，指示信息携带在系统消息广播中。
示意性的，随机接入过程中的上行消息包括如下消息中的任意一种：
类型1的随机接入过程中的消息3；
类型1的随机接入过程中的消息5；
类型2的随机接入过程中消息A。
根据上行消息的分类，指示信息可以用于仅指示某一消息，也可以用于指示所有消息。示意性的，根据作用的不同，指示信息可分为如下两种类型：
(1)指示信息分别指示随机接入过程中的某一个上行消息。
指示信息用于指示是否允许终端通过消息3上报上行定时提前信息；
或，指示信息用于指示是否允许终端通过消息5上报上行定时提前信息；
或，指示信息用于指示是否允许终端通过消息A上报上行定时提前信息。
(2)指示信息统一指示随机接入过程中的所有上行消息或任意上行消息。
指示信息用于指示是否允许终端通过消息3、消息5和消息A中的任意一种上报上行定时提前信息。
根据前述内容，对于随机接入过程中的其他消息的接收和发送过程不再赘述。
步骤503：在指示信息用于指示不允许在上行消息中上报上行定时提前信息的情况下，终端在随机接入过程中的上行消息中不上报上行定时提前信息。
步骤504：在指示信息用于指示允许在上行消息中上报上行定时提前信息的情况下，终端根据逻辑信道优先级和上行调度授权中的至少一种信息，决定是否在随机接入过程中的上行消息中上报上行定时提前信息。
示意性的，在指示信息用于指示允许在上行消息中上报上行定时提前信息的情况下，随机接入过程中的上行消息中，终端根据逻辑信道优先级和上行调度授权中的至少一种信息可分别作出如下两种决定：
(1)终端在如下情况下上报上行定时提前信息：
按照上行定时提前信息和其他待传数据所属逻辑信道的优先级由高到低的顺序，对所有待传数据进行排序。根据排序后的各个待传数据的大小判断上行调度授权(Uplink Grant，UL grant)所调度的上行资源大小在本次上行发送过程中是否能够容纳上行定时提前信息。在UL grant所指示的上行资源的大小能够容纳上行定时提前信息的情况下，上报上行定时提前信息。
其中，待传数据包括：上行数据和MACCE中的至少一种，上行定时提前信息携带在某一个MACCE中。
(2)终端在如下情况下不上报上行定时提前信息：
按照上行定时提前信息和其他待传数据所属逻辑信道的优先级由高到低的顺序，对所有待传数据进行排序。根据排序后的各个待传数据的大小判断UL grant所调度的上行资源大小在本次上行发送过程中是否能够容纳上行定时提前信息。在UL grant不能容纳上行定时提前信息的情况下，不上报上行定时提前信息。
示意性的，步骤503和步骤504只能执行其一，不能同时执行；或者，先执行步骤503后，根据更新后的指示信息再执行步骤504,；或者，先执行步骤504后，根据更新后的指示信息再执行步骤503。
综上所述，本实施例提供的方法，通过网络设备控制定时提前信息的上报或者不上报，使得网络设备可以动态调度终端的上行定时提前信息。在网络设备不获取终端的上行定时提前信息时，相对减少了终端上报占用的消息资源，实现了节省资源的目的；在网络设备获取终端的上行定时提前信息时，网络设备能够得到终端确切的定时提前量，从而可以实现了减小调度时延的目的。
根据前述NTN中的定时提前的发送方法，网络设备需要对该方法发送的定时提前信息进行接收。示意性的如图6所示，本申请实施例提供了一种NTN中的定时提前的接收方法，该接收方法包括如下步骤：
步骤602：网络设备向终端发送指示信息；
指示信息是网络设备向终端发送的信令。示意性的，指示信息用于指示终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息，或者，用于指示是否允许终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息。示意性的，指示信息携带在RRC专有信令中，或，指示信息携带 在系统消息广播中。
示意性的，随机接入过程中的上行消息包括如下消息中的任意一种：
类型1的随机接入过程中的消息3；
类型1的随机接入过程中的消息5；
类型2的随机接入过程中消息A。
其中，类型1的随机接入过程中的消息3主要用于通知网络设备触发随机接入过程的事件，消息3中携带有UE ID和建立原因，或者是携带有UE标识和建立原因；类型1的随机接入过程中的消息5主要用于通知网络设备随机接入的连接建立完成；类型2的随机接入过程中的消息A包括随机接入前导码和UE ID，UE ID可以是C-RNTI、临时C-RNTI、RA-RNTI、非接入层(Non-Access Stratum，NAS)UE ID中的一种。
根据上行消息的分类，指示信息可以用于仅指示某一消息，也可以用于指示所有消息。示意性的，根据作用的不同，指示信息可分为如下两种类型：
(1)指示信息分别指示随机接入过程中的某一个上行消息。
指示信息用于指示终端是否通过消息3上报上行定时提前信息；
或，指示信息用于指示终端是否通过消息5上报上行定时提前信息；
或，指示信息用于指示终端是否通过消息A上报上行定时提前信息；
或，指示信息用于指示是否允许终端通过消息3上报上行定时提前信息；
或，指示信息用于指示是否允许终端通过消息5上报上行定时提前信息；
或，指示信息用于指示是否允许终端通过消息A上报上行定时提前信息。
(2)指示信息统一指示随机接入过程中的所有上行消息或任意上行消息。
指示信息用于指示终端是否通过消息3、消息5和消息A中的任意一种上报上行定时提前信息；
或，指示信息用于指示是否允许终端通过消息3、消息5和消息A中的任意一种上报上行定时提前信息。
采用上述两种类型中的任意一种的指示信息，其决定是否允许上报上行定时提前信息的依据由网络设备做出，该决定可以是网络设备根据任意与随机接入过程相关的配置信息或运行需求做出的。
示意性的，网络设备根据终端的服务小区的配置决定上述指示信息，其中，终端的服务小区的配置包括随机接入资源的相关配置。示意性的，网络设备还可以根据服务小区覆盖范围、终端与卫星的相对距离、终端与网络设备的相对距离中的至少一种决定是否允许上报上行定时提前信息。比如，网络设备在判断得到服务小区覆盖范围较小时，在指示信息中指示不允许上报上行定时提前信息。
比如，网络设备向终端发送RRC专有信令，RRC专有信令中携带有指示信息，该指示信息用于指示终端是否通过消息5上报上行定时提前信息。又如，网络设备向终端发送系统消息广播，系统消息广播中携带有指示信息，该指示信息用于指示是否允许终端通过消息3、消息5和消息A中的任意一种上报上行定时提前信息。
根据前述内容，对于随机接入过程中的其他消息的接收和发送过程不再赘述。
步骤604：网络设备接收终端在随机接入过程中发送的上行消息。
示意性的，上行消息中可以携带有终端的上行定时提前信息，也可以不携带终端的上行定时提前信息。
示意性的，上行定时提前信息包括如下信息中的至少一种：
上行TA值；
终端到卫星之间的第一RTD值；
终端到网络设备之间的第二RTD值；
相对于公共RTD值的增量值。
比如，网络设备向终端发送RRC专有信令，RRC专有信令中携带有指示信息，该指示信息指示可以允许通过消息5上报上行定时提前信息；终端根据该指示信息，在随机接入过程中的上行消息中上报第一RTD值。
又如，网络设备向终端发送系统消息广播，系统消息广播中携带有指示信息，该指示信息用于指示不允许通过消息3、消息5和消息A中的任意一种上报上行定时提前信息；终端根据该指示信息，在随机接入过程中的上行消息中不上报上行定时提前信息。
综上所述，本实施例提供的方法，通过网络设备控制定时提前信息的上报或者不上报，使得网络设备可以动态调度终端的上行定时提前信息。在网络设备不获取终端的上行定时提前信息时，相对减少了终端上报占用的消息资源，实现了节省资源的目的；在网络设备获取终端的上行定时提前信息时，网络设备能够得到终端确切的定时提前量，从而可以实现了减小调度时延的目的。
对应本申请实施例提供的NTN中定时提前的上报方法，示意性的如图6和图7所示，根据指示信息的分类，网络设备可选择如下两种方法中的至少一种接收终端发送的上行消息：
一、指示信息用于指示终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息。
示意性的，如图7所示，本申请实施例提供了另一种NTN中定时提前的接收方法，该接收方法的步骤如下：
步骤702：网络设备向终端指示信息。
示意性的，指示信息用于指示终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息。示意性的，指示信息携带在RRC专有信令中，或，指示信息携带在系统消息广播中。
示意性的，随机接入过程中的上行消息包括如下消息中的任意一种：
类型1的随机接入过程中的消息3；
类型1的随机接入过程中的消息5；
类型2的随机接入过程中消息A。
根据上行消息的分类，指示信息可以用于仅指示某一消息，也可以用于指示所有消息。示意性的，根据作用的不同，指示信息可分为如下两种类型：
(1)指示信息分别指示随机接入过程中的某一个上行消息。
指示信息用于指示终端是否通过消息3上报上行定时提前信息；
或，指示信息用于指示终端是否通过消息5上报上行定时提前信息；
或，指示信息用于指示终端是否通过消息A上报上行定时提前信息。
(2)指示信息统一指示随机接入过程中的所有上行消息或任意上行消息。
指示信息用于指示终端是否通过消息3、消息5和消息A中的任意一种上报上行定时提前信息。
根据前述内容，对于随机接入过程中的其他消息的接收和发送过程不再赘述。
步骤704：网络设备接收终端在随机接入过程中发送的上行消息。
示意性的，上行消息中可以携带有终端的上行定时提前信息，也可以不携带终端的上行定时提前信息。
示意性的，上行定时提前信息包括如下信息中的至少一种：
上行TA值；
终端到卫星之间的第一RTD值；
终端到网络设备之间的第二RTD值；
相对于公共RTD值的增量值。
比如，网络设备向终端发送RRC专有信令，RRC专有信令中携带有指示信息，该指示信息指示终端通过消息A上报上行定时提前信息；终端根据该指示信息，在随机接入过程中的上行消息中通过消息A上报第一RTD值。
又如，网络设备向终端发送系统消息广播，系统消息广播中携带有指示信息，该指示信息用于指示终端不通过消息3、消息5和消息A中的任意一种上报上行定时提前信息；终端根据该指示信息，在随机接入过程中的上行消息中不上报上行定时提前信息。
步骤705：在指示信息用于指示终端在上行消息中不上报上行定时提前信息的情况下，网络设备在随机接入过程中的上行消息中不获取上行定时提前信息。
步骤706：在指示信息用于指示终端在上行消息中上报上行定时提前信息的情况下，网络设备在随机接入过程中的上行消息中获取上行定时提前信息。
示意性的，步骤705和步骤706只能执行其一，不能同时执行；或者，先执行步骤705后，根据更新后的指示信息再执行步骤706,；或者，先执行步骤706后，根据更新后的指示信息再执行步骤705。
二、指示信息用于指示是否允许终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息。
示意性的，如图8所示，本申请实施例提供了另一种NTN中定时提前的接收方法，该接收方法的步骤如下：
步骤802：网络设备向终端指示信息。
示意性的，指示信息用于指示终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息，或者，用于指示是否允许终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息。示意性的，指示信息携带在RRC专有信令中，或，指示信息携带在系统消息广播中。
示意性的，随机接入过程中的上行消息包括如下消息中的任意一种：
类型1的随机接入过程中的消息3；
类型1的随机接入过程中的消息5；
类型2的随机接入过程中消息A。
根据上行消息的分类，指示信息可以用于仅指示某一消息，也可以用于指示所有消息。示意性的，根据作用的不同，指示信息可分为如下两种类型：
(1)指示信息分别指示随机接入过程中的某一个上行消息。
指示信息用于指示是否允许终端通过消息3上报上行定时提前信息；
或，指示信息用于指示是否允许终端通过消息5上报上行定时提前信息；
或，指示信息用于指示是否允许终端通过消息A上报上行定时提前信息。
(2)指示信息统一指示随机接入过程中的所有上行消息或任意上行消息。
指示信息用于指示是否允许终端通过消息3、消息5和消息A中的任意一种上报上行定时提前信息。
根据前述内容，对于随机接入过程中的其他消息的接收和发送过程不再赘述。
步骤804：网络设备接收终端在随机接入过程中发送的上行消息。
示意性的，上行消息中可以携带有终端的上行定时提前信息，也可以不携带终端的上行定时提前信息。
示意性的，上行定时提前信息包括如下信息中的至少一种：
上行TA值；
终端到卫星之间的第一RTD值；
终端到网络设备之间的第二RTD值；
相对于公共RTD值的增量值。
步骤805：在指示信息用于指示不允许在上行消息中上报上行定时提前信息的情况下，网络设备在随机接入过程中的上行消息不获取上行定时提前信息。
步骤806：在指示信息用于指示允许在上行消息中上报上行定时提前信息的情况下，网络设备在随机接入过程中的上行消息获取上行定时提前信息。
示意性的，在指示信息用于指示允许在上行消息中上报上行定时提前信息的情况下，随机接入过程中的上行消息中，终端根据逻辑信道优先级和上行调度授权中的至少一种信息可分别作出如下两种决定：
(1)终端在如下情况下上报上行定时提前信息：
按照上行定时提前信息和其他待传数据所属逻辑信道的优先级由高到低的顺序，对所有待传数据进行排序。根据排序后的各个待传数据的大小判断UL grant所调度的上行资源大小在本次上行发送过程中是否能够容纳上行定时提前信息。在UL grant能够容纳上行定时提前信息的情况下，上报上行定时提前信息。
其中，待传数据包括：上行数据和MACCE中的至少一种，上行定时提前信息携带在某一个MACCE中。
(2)终端在如下情况下不上报上行定时提前信息：
按照上行定时提前信息和其他待传数据所属逻辑信道的优先级由高到低的顺序，对所有待传数据进行排序。根据排序后的各个待传数据的大小判断UL grant所调度的上行资源大小在本次上行发送过程中是否能够容纳上行定时提前信息。在UL grant不能容纳上行定时提前信息的情况下，不上报上行定时提前信息。
示意性的，步骤805和步骤806只能执行其一，不能同时执行；或者，先执行步骤805后，根据更新后的指示信息再执行步骤806；或者，先执行步骤806后，根据更新后的指示信息再执行步骤805。
综上所述，本实施例提供的方法，通过网络设备控制定时提前信息的上报或者不上报，使得网络设备可以动态调度终端的上行定时提前信息。在网络设备不获取终端的上行定时提前信息时，相对减少了终端上报占用的消息资源，实现了节省资源的目的；在网络设备获取终端的上行定时提前信息时，网络设备能够得到终端确切的定时提前量，从而可以实现了减小调度时延的目的。
示意性的如图9所示，本申请实施例提供了一种NTN中的定时提前的上报/接收方法，本实施例以该方法由终端和网络设备执行来举例说明，该方法包括如下步骤：
步骤901：网络设备向终端发送指示信息。
步骤902：终端接收网络设备发送的指示信息。
步骤903：终端根据指示信息确定在随机接入过程中的上行消息中上报或者不上报上行定时提前信息。
步骤904：终端生成随机接入过程中的上行消息。
示意性的，指示信息用于指示终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息， 或者，用于指示是否允许终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息。
示意性的，随机接入过程中的上行消息包括如下消息中的任意一种：
类型1的随机接入过程中的消息3；
类型1的随机接入过程中的消息5；
类型2的随机接入过程中消息A。
根据上行消息的分类，指示信息可以用于仅指示某一消息，也可以用于指示所有消息。示意性的，根据作用的不同，指示信息可分为如下两种类型：
(1)指示信息分别指示某一消息。
指示信息用于指示终端通过消息3上报上行定时提前信息；
或，指示信息用于指示终端通过消息5上报上行定时提前信息；
或，指示信息用于指示终端通过消息A上报上行定时提前信息；
或，指示信息用于指示是否允许终端通过消息3上报上行定时提前信息；
或，指示信息用于指示是否允许终端通过消息5上报上行定时提前信息；
或，指示信息用于指示是否允许终端通过消息A上报上行定时提前信息。
(2)指示信息统一指示所有消息。
指示信息用于指示终端通过消息3、消息5和消息A中的任意一种上报上行定时提前信息；
或，指示信息用于指示是否允许终端通过消息3、消息5和消息A中的任意一种上报上行定时提前信息。
比如，网络设备向终端发送RRC专用信令，该信令携带有指令信息，该指令信息允许通过消息3上报上行定时提前信息；终端接收到该指令信息后，根据指令信息确定需要在随机接入过程中的上行消息中上报上行定时提前信息，生成包括上行定时提前信息的上行消息。
步骤905：终端向网络设备发送随机接入过程中的上行消息。
步骤906：网络设备接收终端发送的随机接入过程中的上行消息。
步骤907：网络设备根据提示信息确定在随机接入过程中的上报消息中是否获取上行定时提前信息。
示意性的，上行定时提前信息包括如下信息中的至少一种：
上行TA值；
终端到卫星之间的第一RTD值；
终端到网络设备之间的第二RTD值；
相对于公共RTD值的增量值。
比如，根据允许通过消息5上报上行定时提前信息的指示信息，终端生成随机接入过程的上行消息。随后，终端向网络设备发送该上行消息，该上行消息中包括的上行定时提前信息是第二RTD值。
示意性的如图8所示，以随机接入过程是类型2的随机接入过程为例，NTN中的定时提前的上报/接收的过程根据网络设备是否允许终端通过消息A上报上行定时提前信息分为两种情况，具体如下所示：
情况1：网络设备不允许终端通过消息A上报上行定时提前信息。
示意性的如图10的(a)所示，NTN中的定时提前的上报/接收步骤如下所示：
步骤1011：网络设备向终端发送指示信息。
示意性的，该指示信息中指示不允许终端通过消息A在随机接入过程中的上行消息中上报终端的上行定时提前信息。
步骤1021：终端对上行消息的发送时刻进行TA补偿。
步骤1031：终端向网络设备发送消息A。
终端根据估算的预补偿值对发送时刻进行TA补偿，在进行过TA补偿后的发送时刻向网络设备发送消息A。由于网络设备不允许终端通过消息A上报上行定时提前信息，因此，终端生成的上行消息中不包括上行定时提前信息。也即，终端向网络设备发送的消息A中不上报携带终端的上行定时提前信息的MAC CE。
步骤1041：网络设备确定终端的TA调整量。
步骤1051：网络设备向终端发送消息B。
根据终端上报的消息A，网络设备获取到的是未携带终端的上行定时提前信息的MAC CE。依据消息A，网络设备将对终端的TA进行调整，生成并向终端发送消息B，消息B中携带的终端的TA未根据终端的上行定时提前信息进行调整。
步骤1061：终端基于消息B的指示调整TA。
终端在接收到网络设备发送的消息B后，根据消息B中携带的TA值对终端的上行消息的发送时 刻进行相应的调整。
情况2：网络设备允许终端通过消息A上报上行定时提前信息。
示意性的如图10的(b)所示，NTN中的定时提前的上报/接收步骤如下所示：
步骤1012：网络设备向终端发送指示信息。
示意性的，该指示信息中指示不允许终端通过消息A在随机接入过程中的上行消息中上报终端的上行定时提前信息。
步骤1022：终端对上行消息的发送时刻进行TA补偿。
终端根据估算的预补偿值对发送时刻进行TA补偿，在进行过TA补偿后的发送时刻向网络设备发送消息A。由于网络设备允许终端通过消息A上报上行定时提前信息，因此，终端生成的上行消息中可以包括上行定时提前信息。也即，终端向网络设备发送的消息A中可以上报携带终端的上行定时提前信息的MAC CE。
步骤1042：确定终端的TA调整量。
步骤1052：网络设备向终端发送消息B。
根据终端上报的消息A，网络设备获取到的是携带终端的上行定时提前信息的MAC CE。依据消息A，网络设备将对终端的TA进行调整，生成并发送消息B，消息B中携带的终端的TA是根据终端的上行定时提前信息进行调整后的TA值。
步骤1062：终端基于消息B的指示调整TA。
终端在接收到网络设备发送的消息B后，根据消息B中携带的TA值对终端的上行消息的发送时刻进行相应的调整。
综上所述，本实施例提供的NTN中的定时提前的上报/接收方法，通过网络设备控制定时提前信息的上报或者不上报，使得网络设备可以动态调度终端的上行定时提前信息。在网络设备不获取终端的上行定时提前信息时，相对减少了终端上报占用的消息资源，实现了节省资源的目的；在网络设备获取终端的上行定时提前信息时，网络设备能够得到终端确切的定时提前量，从而可以实现了减小调度时延的目的。
示意性如图11所示，本申请实施例提供了一种NTN中的定时提前的上报装置，该装置可以实现成为终端的全部或一部分。或可以应用在终端中。该终端可以是支持NTN的终端。装置包括：
接收模块1120，用于接收网络设备的指示信息，指示信息用于指示终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息，或者，用于指示是否允许所述终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息；
上报模块1140，用于根据指示信息终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息。
在一种可选的实施例中，随机接入过程中的上行消息包括如下任意一种：类型1的随机接入过程中的消息3；类型1的随机接入过程中的消息5；类型2的随机接入过程中的消息A。
在一种可选的实施例中，指示信息用于指示终端是否通过消息3上报上行定时提前信息；或，指示信息用于指示终端是否通过消息5上报上行定时提前信息；或，指示信息用于指示终端是否通过消息A上报上行定时提前信息；或，指示信息用于指示是否允许终端通过消息3上报上行定时提前信息；或，指示信息用于指示是否允许终端通过消息5上报上行定时提前信息；或，指示信息用于指示是否允许终端通过消息A上报上行定时提前信息。
在一种可选的实施例中，指示信息用于指示终端是否通过消息3、消息5和消息A中的任意一种上报上行定时提前信息；或，指示信息用于指示是否允许终端通过消息3、消息5和消息A中的任意一种上报上行定时提前信息。
在一种可选的实施例中，指示信息携带在RRC专有信令中；或，指示信息携带在系统消息广播中。
在一种可选的实施例中，上行定时提前信息包括如下至少一种：上行TA值；终端和卫星之间的第一RTD值；终端和网络设备之间的第二RTD值；相对于公共RTD值的增量值。
在一种可选的实施例中，所述上报模块1140，还用于：在指示信息用于指示终端在上行消息中不上报上行定时提前信息的情况下，终端在随机接入过程中的上行消息中不上报上行定时提前信息；在指示信息用于指示终端在上行消息中上报上行定时提前信息的情况下，终端在随机接入过程中的上行消息中上报上行定时提前信息。
在一种可选的实施例中，所述上报模块1140，还用于：在指示信息用于指示不允许终端在上行消息中上报上行定时提前信息的情况下，终端在随机接入过程中的上行消息中不上报上行定时提前信息；在指示信息用于指示允许终端在上行消息中上报上行定时提前信息的情况下，终端根据逻辑信道优先级 和上行调度授权中的至少一种信息，决定是否在随机接入过程中的上行消息中上报上行定时提前信息。
示意性如图12所示，本申请实施例提供了一种NTN中的定时提前的接收装置，该装置可以实现成为终端的全部或一部分。或可以应用在终端中。该终端可以是支持NTN的终端。装置包括：
发送模块1220，用于向终端发送指示信息，指示信息用于指示终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息，或者，用于指示是否允许所述终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息；
接收模块1240，用于接收终端在随机接入过程中发送的上行消息。
获取模块1260，用于：在指示信息用于指示终端在上行消息中不上报上行定时提前信息的情况下，终端在随机接入过程中的上行消息中不获取上行定时提前信息；在指示信息用于指示终端在上行消息中上报上行定时提前信息的情况下，终端在随机接入过程中的上行消息中获取上行定时提前信息。
在一种可选的实施例中，随机接入过程中的上行消息包括如下任意一种：类型1的随机接入过程中的消息3；类型1的随机接入过程中的消息5；类型2的随机接入过程中的消息A。
在一种可选的实施例中，指示信息用于指示终端是否通过消息3上报上行定时提前信息；或，指示信息用于指示终端是否通过消息5上报上行定时提前信息；或，指示信息用于指示终端是否通过消息A上报上行定时提前信息；或，指示信息用于指示是否允许终端通过消息3上报上行定时提前信息；或，指示信息用于指示是否允许终端通过消息5上报上行定时提前信息；或，指示信息用于指示是否允许终端通过消息A上报上行定时提前信息。
在一种可选的实施例中，指示信息用于指示终端是否通过消息3、消息5和消息A中的任意一种上报上行定时提前信息；或，指示信息用于指示是否终端允许通过消息3、消息5和消息A中的任意一种上报上行定时提前信息。
在一种可选的实施例中，指示信息携带在RRC专有信令中；或，指示信息携带在系统消息广播中。
在一种可选的实施例中，上行定时提前信息包括如下至少一种：上行TA值；终端和卫星之间的第一RTD值；终端和网络设备之间的第二RTD值；相对于公共RTD值的增量值。
在一种可选的实施例中，所述获取模块1260，还用于：在指示信息用于指示不允许终端在上行消息中上报上行定时提前信息的情况下，网络设备在随机接入过程中的上行消息中不获取上行定时提前信息；在指示信息用于指示允许终端在上行消息中上报上行定时提前信息的情况下，网络设备在随机接入过程中的上行消息中获取上行定时提前信息。
图13示出了本申请一个示例性实施例提供的通信设备(终端或网络设备)的结构示意图，该通信设备包括：处理器1301、接收器1302、发射器1303、存储器1304和总线1305。
处理器1301包括一个或者一个以上处理核心，处理器1301通过运行软件程序以及模块，从而执行各种功能应用以及信息处理。
接收器1302和发射器1303可以实现为一个通信组件，该通信组件可以是一块通信芯片。
存储器1304通过总线1305与处理器1301相连。
存储器1304可用于存储至少一个指令，处理器1301用于执行该至少一个指令，以实现上述方法实施例中提到的NTN中定时提前的上报方法和接收方法的各个步骤。
此外，存储器1304可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，易失性或非易失性存储设备包括但不限于：磁盘或光盘，电可擦除可编程只读存储器(Electrically-Erasable Programmable Read Only Memory，EEPROM)，可擦除可编程只读存储器(Erasable Programmable Read Only Memory，EPROM)，静态随时存取存储器(Static Random Access Memory，SRAM)，只读存储器(Read-Only Memory，ROM)，磁存储器，快闪存储器，可编程只读存储器(Programmable Read-Only Memory，PROM)。
根据本申请的一个方面，提供了一种终端，该终端包括处理器、与处理器相连的收发器和用于存储处理器的可执行指令的存储器，处理器被配置为加载并执行可执行指令以实现如上所述的NTN中定时提前的上报方法。
根据本申请的一个方面，提供了一种网络设备，该网络设备包括处理器，与处理器相连的收发器和用于存储处理器的可执行指令的存储器。其中，处理器被配置为加载并执行可执行指令以实现如上所述的NTN中定时提前的接收方法。
根据本申请的一个方面，提供了一种芯片，该芯片包括可编程逻辑电路或程序，该芯片用于实现如上述方面的NTN中定时提前的上报方法，或，如上述方面的NTN中定时提前的接收方法。
在本申请的一个示例性实施例中，还提供了一种计算机可读存储介质，所述可读存储介质中存储有 可执行指令，所述可执行指令由所述处理器加载并执行以实现如上所述的NTN中定时提前的上报方法，或，如上所述的NTN中定时提前的接收方法。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成，也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，磁盘或光盘等。
以上所述仅为本申请的可选实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (35)

  1. 一种NTN中定时提前的上报方法，其特征在于，应用于终端中，所述方法包括：
    接收网络设备的指示信息，所述指示信息用于指示所述终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息，或者，用于指示是否允许所述终端在随机接入过程中的上行消息中上报或不上报所述上行定时提前信息；
    所述终端根据所述指示信息在所述随机接入过程中的上行消息中上报或不上报上行定时提前信息。
  2. 根据权利要求1所述的方法，其特征在于，所述随机接入过程中的上行消息包括如下任意一种：
    类型1的随机接入过程中的消息3；
    所述类型1的随机接入过程中的消息5；
    类型2的随机接入过程中的消息A。
  3. 根据权利要求2所述的方法，其特征在于，
    所述指示信息用于指示所述终端是否通过所述消息3上报所述上行定时提前信息；
    或，所述指示信息用于指示所述终端是否通过所述消息5上报所述上行定时提前信息；
    或，所述指示信息用于指示所述终端是否通过所述消息A上报所述上行定时提前信息；
    或，所述指示信息用于指示是否允许所述终端通过所述消息3上报所述上行定时提前信息；
    或，所述指示信息用于指示是否允许所述终端通过所述消息5上报所述上行定时提前信息；
    或，所述指示信息用于指示是否允许所述终端通过所述消息A上报所述上行定时提前信息。
  4. 根据权利要求2所述的方法，其特征在于，
    所述指示信息用于指示所述终端是否通过所述消息3、所述消息5和所述消息A中的任意一种上报所述上行定时提前信息；
    或，所述指示信息用于指示是否允许所述终端通过所述消息3、所述消息5和所述消息A中的任意一种上报所述上行定时提前信息。
  5. 根据权利要求1至4任一所述的方法，其特征在于，
    所述指示信息携带在无线资源控制RRC专有信令中；
    或，所述指示信息携带在系统消息广播中。
  6. 根据权利要求1至4任一所述的方法，其特征在于，所述上行定时提前信息包括如下至少一种：
    上行定时提前TA值；
    所述终端和卫星之间的第一往返时延RTD值；
    所述终端和网络设备之间的第二RTD值；
    相对于公共RTD值的增量值。
  7. 根据权利要求1至4任一所述的方法，其特征在于，所述终端根据所述指示信息在所述随机接入过程中的上行消息中上报或不上报上行定时提前信息，包括：
    在所述指示信息用于指示所述终端在所述上行消息中不上报所述上行定时提前信息的情况下，所述终端在所述随机接入过程中的上行消息中不上报所述上行定时提前信息；
    在所述指示信息用于指示所述终端在所述上行消息中上报所述上行定时提前信息的情况下，所述终端在所述随机接入过程中的上行消息中上报所述上行定时提前信息。
  8. 根据权利要求1至4任一所述的方法，其特征在于，所述终端根据所述指示信息在所述随机接入过程中的上行消息中上报或不上报上行定时提前信息，包括：
    在所述指示信息用于指示不允许所述终端在所述上行消息中上报所述上行定时提前信息的情况下，所述终端在所述随机接入过程中的上行消息中不上报所述上行定时提前信息；
    在所述指示信息用于指示允许所述终端在所述上行消息中上报所述上行定时提前信息的情况下，所述终端根据逻辑信道优先级和上行调度授权中的至少一种信息，决定是否在所述随机接入过程中的上行消息中上报所述上行定时提前信息。
  9. 一种NTN中定时提前的接收方法，其特征在于，应用于网络设备中，所述方法包括：
    向终端发送指示信息，所述指示信息用于指示所述终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息，或者，用于指示是否允许所述终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息；
    接收所述终端在所述随机接入过程中发送的所述上行消息。
  10. 根据权利要求9所述的方法，其特征在于，所述随机接入过程中的上行消息包括如下任意一种：
    类型1的随机接入过程中的消息3；
    所述类型1的随机接入过程中的消息5；
    类型2的随机接入过程中的消息A。
  11. 根据权利要求10所述的方法，其特征在于，
    所述指示信息用于指示所述终端是否通过所述消息3上报所述上行定时提前信息；
    或，所述指示信息用于指示所述终端是否通过所述消息5上报所述上行定时提前信息；
    或，所述指示信息用于指示所述终端是否通过所述消息A上报所述上行定时提前信息；
    或，所述指示信息用于指示是否允许所述终端通过所述消息3上报所述上行定时提前信息；
    或，所述指示信息用于指示是否允许所述终端通过所述消息5上报所述上行定时提前信息；
    或，所述指示信息用于指示是否允许所述终端通过所述消息A上报所述上行定时提前信息。
  12. 根据权利要求10所述的方法，其特征在于，
    所述指示信息用于指示所述终端是否通过所述消息3、所述消息5和所述消息A中的任意一种上报所述上行定时提前信息；
    或，所述指示信息用于指示是否允许所述终端通过所述消息3、所述消息5和所述消息A中的任意一种上报所述上行定时提前信息。
  13. 根据权利要求9至12任一所述的方法，其特征在于，
    所述指示信息携带在RRC专有信令中；
    或，所述指示信息携带在系统消息广播中。
  14. 根据权利要求9至12任一所述的方法，其特征在于，所述上行定时提前信息包括如下至少一种：
    上行TA值；
    所述终端和卫星之间的第一RTD值；
    所述终端和网络设备之间的第二RTD值；
    相对于公共RTD值的增量值。
  15. 根据权利要求9至12任一所述的方法，其特征在于，所述方法还包括：
    在所述指示信息用于指示所述终端在所述上行消息中不上报所述上行定时提前信息的情况下，所述网络设备在所述随机接入过程中的上行消息中不获取所述上行定时提前信息；
    在所述指示信息用于指示所述终端在所述上行消息中上报所述上行定时提前信息的情况下，所述网络设备在所述随机接入过程中的上行消息中获取所述上行定时提前信息。
  16. 根据权利要求9至12任一所述的方法，其特征在于，所述方法还包括：
    在所述指示信息用于指示不允许所述终端在所述上行消息中上报所述上行定时提前信息的情况下，所述网络设备在所述随机接入过程中的上行消息中不获取所述上行定时提前信息；
    在所述指示信息用于指示允许所述终端在所述上行消息中上报所述上行定时提前信息的情况下，所述网络设备在所述随机接入过程中的上行消息中获取所述上行定时提前信息。
  17. 一种NTN中定时提前的上报装置，其特征在于，所述装置包括：
    接收模块，用于接收网络设备的指示信息，所述指示信息用于指示所述终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息，或者用于指示是否允许所述终端在随机接入过程中的上行消息中上报或不上报所述上行定时提前信息；
    上报模块，用于所述终端根据所述指示信息在所述随机接入过程中的上行消息中上报或不上报上行定时提前信息。
  18. 根据权利要求17所述的装置，其特征在于，所述随机接入过程中的上行消息包括如下任意一种：
    类型1的随机接入过程中的消息3；
    所述类型1的随机接入过程中的消息5；
    类型2的随机接入过程中的消息A。
  19. 根据权利要求18所述的装置，其特征在于，
    所述指示信息用于指示所述终端是否通过所述消息3上报所述上行定时提前信息；
    或，所述指示信息用于指示所述终端是否通过所述消息5上报所述上行定时提前信息；
    或，所述指示信息用于指示所述终端是否通过所述消息A上报所述上行定时提前信息；
    或，所述指示信息用于指示是否允许所述终端通过所述消息3上报所述上行定时提前信息；
    或，所述指示信息用于指示是否允许所述终端通过所述消息5上报所述上行定时提前信息；
    或，所述指示信息用于指示是否允许所述终端通过所述消息A上报所述上行定时提前信息。
  20. 根据权利要求18所述的装置，其特征在于，
    所述指示信息用于指示所述终端是否通过所述消息3、所述消息5和所述消息A中的任意一种上报所述上行定时提前信息；
    或，所述指示信息用于指示是否允许所述终端通过所述消息3、所述消息5和所述消息A中的任意一种上报所述上行定时提前信息。
  21. 根据权利要求17至20任一所述的装置，其特征在于，
    所述指示信息携带在RRC专有信令中；
    或，所述指示信息携带在系统消息广播中。
  22. 根据权利要求17至20任一所述的装置，其特征在于，所述上行定时提前信息包括如下至少一种：
    上行TA值；
    所述终端和卫星之间的第一RTD值；
    所述终端和网络设备之间的第二RTD值；
    相对于公共RTD值的增量值。
  23. 根据权利要求17至20任一所述的装置，其特征在于，所述上报模块，还用于：
    在所述指示信息用于指示所述终端在所述上行消息中不上报所述上行定时提前信息的情况下，所述终端在所述随机接入过程中的上行消息中不上报所述上行定时提前信息；
    在所述指示信息用于指示所述终端在所述上行消息中上报所述上行定时提前信息的情况下，所述终端在所述随机接入过程中的上行消息中上报所述上行定时提前信息。
  24. 根据权利要求17至20任一所述的装置，其特征在于，所述上报模块，还用于：
    在所述指示信息用于指示不允许所述终端在所述上行消息中上报所述上行定时提前信息的情况下，所述终端在所述随机接入过程中的上行消息中不上报所述上行定时提前信息；
    在所述指示信息用于指示允许所述终端在所述上行消息中上报所述上行定时提前信息的情况下，所述终端根据逻辑信道优先级和上行调度授权中的至少一种信息，决定是否在所述随机接入过程中的上行消息中上报所述上行定时提前信息。
  25. 一种NTN中定时提前的接收装置，其特征在于，所述装置包括：
    发送模块，用于向终端发送指示信息，所述指示信息用于指示所述终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息，或者，用于指示是否允许所述终端在随机接入过程中的上行消息中上报或不上报上行定时提前信息；
    接收模块，用于接收所述终端在所述随机接入过程中发送的所述上行消息。
  26. 根据权利要求25所述的装置，其特征在于，所述随机接入过程中的上行消息包括如下任意一种：
    类型1的随机接入过程中的消息3；
    所述类型1的随机接入过程中的消息5；
    类型2的随机接入过程中的消息A。
  27. 根据权利要求26所述的装置，其特征在于，
    所述指示信息用于指示所述终端是否通过所述消息3上报所述上行定时提前信息；
    或，所述指示信息用于指示所述终端是否通过所述消息5上报所述上行定时提前信息；
    或，所述指示信息用于指示所述终端是否通过所述消息A上报所述上行定时提前信息；
    或，所述指示信息用于指示是否允许所述终端通过所述消息3上报所述上行定时提前信息；
    或，所述指示信息用于指示是否允许所述终端通过所述消息5上报所述上行定时提前信息；
    或，所述指示信息用于指示是否允许所述终端通过所述消息A上报所述上行定时提前信息。
  28. 根据权利要求25所述的装置，其特征在于，
    所述指示信息用于指示所述终端是否通过所述消息3、所述消息5和所述消息A中的任意一种上报所述上行定时提前信息；
    或，所述指示信息用于指示是否允许所述终端通过所述消息3、所述消息5和所述消息A中的任意一种上报所述上行定时提前信息。
  29. 根据权利要求25至28任一所述的装置，其特征在于，
    所述指示信息携带在RRC专有信令中；
    或，所述指示信息携带在系统消息广播中。
  30. 根据权利要求25至28任一所述的装置，其特征在于，所述上行定时提前信息包括如下至少一种：
    上行TA值；
    所述终端和卫星之间的第一RTD值；
    所述终端和网络设备之间的第二RTD值；
    相对于公共RTD值的增量值。
  31. 根据权利要求25至28任一所述的装置，其特征在于，所述装置还包括获取模块，所述获取模块用于：
    在所述指示信息用于指示所述终端在所述上行消息中不上报所述上行定时提前信息的情况下，所述终端在所述随机接入过程中的上行消息中不获取所述上行定时提前信息；
    在所述指示信息用于指示所述终端在所述上行消息中上报所述上行定时提前信息的情况下，所述终端在所述随机接入过程中的上行消息中获取所述上行定时提前信息。
  32. 根据权利要求25至28任一所述的装置，其特征在于，所述装置还用于：
    在所述指示信息用于指示不允许所述终端在所述上行消息中上报所述上行定时提前信息的情况下，所述网络设备在所述随机接入过程中的上行消息中不获取所述上行定时提前信息；
    在所述指示信息用于指示允许所述终端在所述上行消息中上报所述上行定时提前信息的情况下，所述网络设备在所述随机接入过程中的上行消息中获取所述上行定时提前信息。
  33. 一种终端，其特征在于，所述终端包括处理器、与所述处理器相连的收发器和用于存储所述处理器的可执行指令的存储器，所述处理器被配置为加载并执行所述可执行指令以实现如权利要求1至8任一所述的NTN中定时提前的上报方法。
  34. 一种网络设备，其特征在于，所述网络设备包括处理器，与所述处理器相连的收发器和用于存储所述处理器的可执行指令的存储器；其中，所述处理器被配置为加载并执行所述可执行指令以实现如权利要求9至16任一所述的NTN中定时提前的接收方法。
  35. 一种计算机可读存储介质，其特征在于，所述可读存储介质中存储有可执行指令，所述可执行指令由所述处理器加载并执行以实现如权利要求1至8任一所述的NTN中定时提前的上报方法，或，如权利要求9至16任一所述的NTN中定时提前的接收方法。
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