WO2022016990A1

WO2022016990A1 - Indication method and device for satellite system configuration information

Info

Publication number: WO2022016990A1
Application number: PCT/CN2021/095777
Authority: WO
Inventors: 缪德山; 孙韶辉; 康绍莉
Original assignee: 大唐移动通信设备有限公司
Priority date: 2020-07-24
Filing date: 2021-05-25
Publication date: 2022-01-27
Also published as: CN113972944A

Abstract

Provided are an indication method and device for satellite system configuration information. The method is applied to a network device, and comprises: sending a downlink indication message, wherein the downlink indication message carries satellite system configuration information, the satellite system configuration information comprising at least one of the height of a satellite orbit, the type of a satellite, tilt angle information of the satellite, direction information of a wave beam, width information of the wave beam, a beam coverage size, a clock offset and a clock correction coefficient, thereby realizing configuration of satellite system information in a satellite system.

Description

Method and device for indicating configuration information of satellite system

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the Chinese patent application with the application number 202010726002.4 and the application title "A Method and Device for Indicating Satellite System Configuration Information" filed with the China Patent Office on July 24, 2020, the entire contents of which are incorporated by reference in this application.

technical field

The present disclosure relates to the field of wireless communication technologies, and in particular, to a method and device for indicating configuration information of a satellite system.

Background technique

In the satellite communication system, the configuration information of the satellite system and the configuration information of the ground mobile communication system are quite different, especially for the low-orbit satellites that move at high speed. Since there are various configurations of different orbits, different beams, and different processing modes in the satellite system, in order to support operations such as quick access of terminals, network selection, mobility management, etc., how to configure system information in the satellite system needs to be solved at present. problem.

SUMMARY OF THE INVENTION

Embodiments of the present disclosure provide a method and device for indicating satellite system configuration information, which are used to implement satellite system information configuration in a satellite system.

In a first aspect, an embodiment of the present disclosure provides a method for indicating configuration information of a satellite system, which is applied to a network device, including:

Send a downlink instruction message. The downlink instruction message carries the satellite system configuration information. The satellite system configuration information includes satellite orbit height, satellite type, satellite tilt angle information, beam direction information, beam width information, beam coverage size, clock offset rate, At least one of the clock correction coefficients.

In some embodiments of the present disclosure, the downlink indication message includes a master information block (MIB), a system information block (SIB), radio resource control (RRC) signaling, medium access control element (MAC CE) signaling, and a downlink control channel (PDCCH) at least one item of signaling information.

In some embodiments of the present disclosure, sending a downlink indication message includes:

When the terminal exits the RRC connection state, a downlink indication message is sent, and the downlink indication message carries the current satellite system configuration information.

In the embodiment of the present disclosure, it also includes:

receiving indication information sent by the terminal, where the indication information is used to indicate the satellite system configuration information requested by the terminal;

Send downlink indication message, including:

A downlink indication message is sent according to the indication information, and the downlink indication message carries the satellite system configuration information requested by the terminal to be acquired.

In some embodiments of the present disclosure, the indication information is carried in signaling information of an uplink control channel (PUCCH), MAC CE signaling or RRC signaling.

In some embodiments of the present disclosure, sending the downlink indication message according to the indication information includes:

The downlink indication message is sent to the terminal according to the indication information, and the downlink indication message is carried in the signaling information of the PDCCH, downlink control information (DCI), MAC CE signaling or RRC signaling.

In some embodiments of the present disclosure, sending a downlink indication message to the terminal according to the indication information includes:

When the terminal exits the RRC connected state, a downlink instruction message is sent to the terminal according to the instruction information, and the downlink instruction message carries the current satellite system configuration information.

In some embodiments of the present disclosure, the satellite system configuration information requested to be acquired includes at least one of the following:

Satellite orbit altitude, satellite type, satellite tilt angle information, satellite ephemeris information, satellite almanac information, effective time of satellite orbit information, beam direction information, beam width information, beam usage frequency, beam coverage size, satellite load Type, transmission distance of feeder link, feeder link direction information, timing reference point, clock skew rate, clock correction factor.

In a second aspect, an embodiment of the present disclosure provides a method for indicating configuration information of a satellite system, including:

Receive the downlink instruction message sent by the network device. The downlink instruction message carries the satellite system configuration information. The satellite system configuration information includes satellite orbit height, satellite type, satellite tilt angle information, beam direction information, beam width information, beam coverage size, and clock. At least one of skew rate and clock correction factor.

In some embodiments of the present disclosure, the downlink indication message includes at least one of MIB, SIB, RRC signaling, MAC CE signaling, and PDCCH signaling information.

In some embodiments of the present disclosure, receiving a downlink indication message sent by a network device includes:

When exiting the RRC connection state, the downlink indication message sent by the network device is received, and the downlink indication message carries the current satellite system configuration information.

In some embodiments of the present disclosure, it also includes:

Send indication information to the network device, where the indication information is used to indicate the satellite system configuration information requested by the terminal;

Receive a downlink indication message sent by a network device, including:

A downlink indication message sent by the network device according to the indication information is received, where the downlink indication message carries the satellite system configuration information requested by the terminal to be acquired.

In some embodiments of the present disclosure, the indication information is carried in PUCCH signaling information, MAC CE signaling or RRC signaling.

In some embodiments of the present disclosure, receiving a downlink indication message sent by a network device according to the indication information includes:

Receive a downlink indication message sent by the network device according to the indication information, where the downlink indication message is carried in the signaling information of the PDCCH, DCI, MAC CE signaling or RRC signaling.

When exiting the RRC connection state, a downlink indication message sent by the network device according to the indication information is received, and the downlink indication message carries the current satellite system configuration information.

In some embodiments of the present disclosure, it also includes:

Determine the network parameters of the satellite according to the satellite system configuration information, and perform at least one of the following operations:

Determine whether to randomly access the corresponding satellite cell based on the satellite orbit altitude or satellite type in the satellite system configuration information;

Determine the position information of the satellite based on the ephemeris information of the satellite or the almanac information of the satellite in the satellite system configuration information, and the position information is used for Doppler compensation, timing compensation or cell handover;

Determine the coverage area of the satellite beam on the ground based on the satellite's tilt angle information or beam direction information, beam width information, and beam coverage size in the satellite system configuration information;

Determine Doppler compensation information based on beam direction information;

Determine timing compensation information or Doppler compensation information based on satellite load type, feeder link transmission distance or feeder link direction information in the satellite system configuration information;

Timing compensation information or clock adjustment information is determined based on a timing reference point, a clock offset rate or a clock correction coefficient in the satellite system configuration information.

In a third aspect, an embodiment of the present disclosure provides a network device, including:

The sending module is used to send a downlink instruction message. The downlink instruction message carries satellite system configuration information. The satellite system configuration information includes satellite orbit height, satellite type, satellite inclination angle information, beam direction information, beam width information, beam coverage size, At least one of clock skew rate and clock correction factor.

In a fourth aspect, an embodiment of the present disclosure provides a terminal, including:

The receiving module is used to receive the downlink instruction message sent by the network device. The downlink instruction message carries satellite system configuration information, and the satellite system configuration information includes satellite orbit height, satellite type, satellite tilt angle information, beam direction information, beam width information, At least one of beam coverage size, clock offset rate, and clock correction factor.

In a fifth aspect, an embodiment of the present disclosure provides a network device, including a processor, a memory, and a transceiver;

A transceiver, which receives and transmits data under the control of the processor;

memory, which stores computer instructions;

A processor for reading computer instructions to perform the method of any one of the first aspects.

In a sixth aspect, an embodiment of the present disclosure provides a terminal, including a processor, a memory, and a transceiver;

memory, which stores computer instructions;

A processor for reading computer instructions to perform the method of any one of the second aspects.

In a seventh aspect, an embodiment of the present disclosure provides a computer-readable storage medium, where the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to cause a computer to execute the method according to any one of the first aspects.

In an eighth aspect, an embodiment of the present disclosure provides a computer-readable storage medium, where the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to cause a computer to execute the method according to any one of the second aspects.

In the above-mentioned embodiment of the present disclosure, the network device sends a downlink instruction message, and the downlink instruction message carries satellite system configuration information, and the satellite system configuration information includes satellite orbit height, satellite type, satellite tilt angle information, beam direction information, and beam width information. , at least one of beam coverage size, clock offset rate, and clock correction coefficient, so as to implement satellite system information configuration in the satellite system.

Description of drawings

In order to explain the technical solutions of the embodiments of the present disclosure more clearly, the following briefly introduces the drawings that need to be used in the embodiments of the present disclosure. Obviously, the drawings introduced below are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 exemplarily shows a schematic diagram of an application scenario provided by an embodiment of the present disclosure;

FIG. 2 exemplarily shows a flowchart of a method for indicating satellite system configuration information provided by an embodiment of the present disclosure;

3 exemplarily shows a flowchart of a method for indicating satellite system configuration information based on terminal requirements provided by an embodiment of the present disclosure;

FIG. 4 exemplarily shows a functional structure diagram of a network device provided by an embodiment of the present disclosure;

FIG. 5 exemplarily shows a functional structure diagram of a terminal provided by an embodiment of the present disclosure;

FIG. 6 exemplarily shows a hardware structure diagram of a network device provided by an embodiment of the present disclosure;

FIG. 7 exemplarily shows a hardware structure diagram of a terminal provided by an embodiment of the present disclosure.

detailed description

In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the present disclosure will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. . Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

The terms "first" and "second" are only used for different descriptions, and should not be understood as implying or implying relative importance or implying the number of indicated technical features. Thus, the features defined as "first", "second", may expressly or implicitly include one or more of the features, and in the description of the embodiments of the present disclosure, unless otherwise stated, "at least one ” means one or more than one.

Some terms in the embodiments of the present disclosure are explained below to facilitate understanding by those skilled in the art.

(1) In the embodiments of the present disclosure, the terms "network" and "system" are often used interchangeably, but those skilled in the art can understand their meanings.

(2) The term "plurality" in the embodiments of the present disclosure refers to two or more than two, and other quantifiers are similar.

(3) "and/or", which describes the relationship of the associated objects, indicates that there can be three kinds of relationships, for example, A and/or B, which can indicate that A exists alone, A and B exist at the same time, and B exists alone. condition. The character "/" generally indicates that the associated objects are an "or" relationship.

(4) A network device is a device that provides wireless communication functions for the terminal, including but not limited to: gNB in 5G, radio network controller (RNC), node B (node B, NB) , base station controller (BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved nodeB, or home node B, HNB), baseband unit (BaseBand Unit, BBU), transmission point (transmitting and receiving point, TRP), transmitting point (transmitting point, TP), mobile switching center, etc. The base station in the present disclosure may also be a device that provides wireless communication functions for terminals in other communication systems that may appear in the future.

(5) A terminal is a device that can provide users with voice and/or data connectivity. For example, the terminal device includes a handheld device with a wireless connection function, a vehicle-mounted device, and the like. At present, terminal devices can be: mobile phones (mobile phones), tablet computers, notebook computers, PDAs, mobile Internet devices (MIDs), wearable devices, virtual reality (virtual reality, VR) devices, augmented reality ( augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in smart grid, wireless terminals in transportation safety A wireless terminal, a wireless terminal in a smart city, or a wireless terminal in a smart home, etc.

In a terrestrial mobile communication system, the messages that network equipment needs to broadcast mainly include frequency point information, cell wireless parameter configuration information, neighbor cell measurement and access control information, etc. The terminal needs to obtain these information to complete cell access when accessing the network. In the communication process, it can adapt to switch, paging and other operations to maintain high-quality communication service transmission.

In the satellite communication system, the satellite system includes three modes: high-orbit, medium-orbit, and low-orbit. The transmission capability based on satellite is divided into on-board processing and transparent forwarding mode. The satellite system itself includes frequency, bandwidth, beam, etc. These configuration elements make the operation of the satellite communication system more complicated. The satellite communication system will broadcast ephemeris, beam, frequency and other information to the terminal, so that the terminal can determine the orbital position of the satellite. The current satellite communication system generally only supports fixed single-point access communication, and does not consider some functions of mobile communication, such as handover, interference avoidance, paging, network selection and other technical requirements, and does not consider the rapid movement of low-orbit satellites. The time-frequency synchronization requirements, especially the multi-user synchronization requirements in the Orthogonal Frequency Division Multiplexing (OFDM) system, cause the satellite communication system to be unable to operate stably. On the basis of the ground mobile communication system, the satellite communication system needs more information indication.

In the embodiment of the present disclosure, the satellite system configuration information is sent through a broadcast message, wherein the satellite system configuration information includes at least one of satellite operating orbit information, beam configuration information, satellite load information, satellite timing and clock information, which is satellite communication More information indications are provided, so that the information configuration of the satellite system is realized in the satellite system, and the stability of the satellite communication system is further improved.

FIG. 1 exemplarily shows a schematic diagram of a satellite communication system provided by an embodiment of the present disclosure. As shown in the figure, a satellite communication system generally consists of a satellite 100, a ground station 200, and terminals (300a-300c).

The satellite 100 acts as a relay station in the air, that is, amplifies the electromagnetic waves sent by the ground station 200 and sends it back to another ground station.

The ground station 200 is the interface between the satellite system and the public network on the ground, and terminals (300a-300c) on the ground can access the satellite system through the ground station 200 to form a link. The ground station 200 may be a network device such as a base station, a transmission point, and a mobile switching center.

The terminals (300a to 300c) are various user terminals, such as a notebook computer 300a, a tablet computer 300b, and a mobile phone 300c.

Based on the satellite communication system shown in FIG. 1 , FIG. 2 exemplarily shows a flowchart of a method for indicating configuration information of a satellite system provided by an embodiment of the present disclosure. As shown in the figure, the process mainly includes the following steps:

S201: The network device sends a downlink instruction message, where the downlink instruction message carries satellite system configuration information, where the satellite system configuration information includes satellite orbit height, satellite type, satellite tilt angle information, beam direction information, beam width information, beam coverage size, clock At least one of skew rate and clock correction factor.

In some embodiments, the satellite system configuration information further includes: satellite ephemeris information, satellite almanac information, valid time of satellite orbit information, beam usage frequency, satellite load type, transmission distance of feeder links, feeder At least one item of link direction information and timing reference point.

Table 1 exemplarily shows the parameter meanings and application methods of the satellite system configuration information provided by the embodiments of the present disclosure.

Table 1. Parameter meaning and application method of satellite system configuration information

Among them, LEO is the English abbreviation of Low Earth Orbit (Low Earth Orbit), MEO is the English abbreviation of Medium Earth Orbit (Medium Earth Orbit), and GEO is the English abbreviation of The Geostationary Orbit.

It can be seen from Table 1 that the satellite system configuration information has a large number of parameters and needs to occupy a large number of bits. The information type and load of the satellite system configuration information can be notified separately by using the downlink indication message.

In the embodiment of the present disclosure, the downlink indication message includes a master information block (Master Information Block, MIB) and a system information block (System Information Block, SIB). The number of bits of information carried by the MIB is limited and can be used to carry satellite system configuration. The satellite ID and satellite orbit type in the information, other information occupies a large number of bits, which will exceed the maximum capacity supported by the Physical Broadcast Channel (PBCH). SIB can be used to carry satellite orbit height, satellite type, and satellite inclination. At least one item of angle information, beam direction information, beam width information, beam coverage size, clock offset rate, and clock correction coefficient.

In some embodiments, for the transmission of the MIB, a fixed period may be employed, such as once every 20 milliseconds (ms). For SIB transmission, it can be periodic or aperiodic. Due to the large amount of satellite system configuration information, when the SIBs are sent according to the configured period, the configured periods of the SIBs carrying different satellite system configuration information are different, thereby reducing resource overhead.

For example, when the SIB carries satellite operating orbit information, the sending period can be 10 minutes (min), when the SIB carries beam configuration information, the sending period can be 1 min, when the SIB carries satellite load information, the sending period can be 500 ms, and the SIB When carrying satellite timing and clock information, the transmission period can be 200ms.

In some embodiments, the downlink indication message further includes radio resource control (Radio Resource Control, RRC) signaling, media access control element (Media Access Control Element, MAC CE) signaling, downlink control channel (Physical Downlink Control Channel, At least one item of signaling information of PDCCH).

S202: The terminal receives a downlink indication message carrying satellite system configuration information to acquire satellite system configuration information.

The terminal can perform cell access, cell handover, and interference avoidance according to the acquired satellite system configuration information. In some embodiments of the present disclosure, after receiving the satellite system configuration information sent by the network device, the terminal determines network parameters of the satellite according to the satellite system configuration information, and performs at least one of the following operations:

Determine whether to randomly access the corresponding satellite cell based on the satellite orbit altitude or satellite type;

Determine the coverage area of the satellite beam on the ground based on the satellite's tilt angle information or beam direction information and beam width information;

Determine Doppler compensation information based on beam direction information;

Based on the clock skew rate or the clock correction factor, timing compensation information or clock adjustment information is determined.

In the embodiment of the present disclosure, when the load of the satellite system configuration information is relatively large, the network device carries the satellite system configuration information in a data packet and sends it to the terminal. The network device can indicate the satellite system configuration information in the data packet through the application program APP.

In the above embodiments of the present disclosure, the network device sends a broadcast message carrying satellite system configuration information, where the satellite system configuration information includes satellite orbit height, satellite type, satellite tilt angle information, beam direction information, beam width information, beam At least one item of coverage size, clock offset rate, and clock correction coefficient provides more information indications for satellite communication, so as to realize satellite system information configuration in the satellite system.

In some embodiments of the present disclosure, when the configuration information of the satellite system changes, the network device updates the configuration information of the satellite system, and sends a downlink instruction message carrying the updated configuration information of the satellite system. The terminal performs cell access, cell handover, interference avoidance, and RRM measurement according to the updated satellite system configuration information. The situation in which the configuration information of the satellite system changes includes at least one of the following:

The current satellite or adjacent satellite collides with the GEO satellite at the equator, and it is necessary to avoid the interference to the GEO satellite and adjust the pitch angle of the satellite and the beam;

In order to avoid interference with other satellites, the current satellite or adjacent satellites adjust the transmission bandwidth of the satellite system;

The current satellite or adjacent satellites are operating in high latitudes, and the satellites will be shut down soon;

The validity period of the ephemeris information of the current serving satellite or adjacent satellites expires, and the terminal needs to be notified of the new ephemeris information.

In some embodiments of the present disclosure, the terminal may perform a satellite search based on pre-stored ephemeris information or the ephemeris information when the connection was last disconnected, and adjust the beam transceiving angle to receive the satellite ID and satellite orbit type carried by the MIB and the satellite orbit altitude, At least one of satellite type, satellite tilt angle information, beam direction information, beam width information, beam coverage size, clock offset rate, clock correction coefficient, and adjust timing parameters and Doppler reception correction parameters according to MIB and SIB And configure the cell access parameters to access the corresponding cell.

During the cell access process, the terminal sends a Physical Random Access Channel (PRACH) signal to the network device for acquiring satellite timing information and uplink Doppler compensation information, and the network device responds after receiving the PRACH signal. The physical access channel PRACH response message and indication information are sent to the terminal, and the terminal sends an RRC connection request message on the PRACH channel according to the indication information to establish an RRC connection with the network device.

In the RRC connection stage, the network device sends RRC reconfiguration signaling to the terminal, and the RRC reconfiguration signaling carries more accurate satellite system configuration information, so that the terminal can track the signal and running track of the satellite in real time, and at the same time accurately determine the satellite coverage position. Keep time-frequency synchronization with network devices.

In some embodiments of the present disclosure, when the terminal initially accesses the cell, it receives satellite system configuration information so as to quickly acquire satellite signals and access the network. The ephemeris information of satellites usually has a validity period, and the accuracy will gradually decrease as the time becomes longer. In order to enable the terminal to obtain sufficiently accurate satellite system configuration information during sleep or shutdown, such as ephemeris information, almanac information, beam direction information, etc., when the terminal exits the RRC connection state, the network device sends a downlink indication message to the terminal, the downlink indication The message carries the current satellite system configuration information, so that the terminal saves the latest satellite system configuration information. The latest satellite system configuration information (such as satellite ephemeris information) can prolong the time for two accesses, so that when the terminal accesses the cell again, it becomes more efficient and accurate.

In some embodiments of the present disclosure, after the terminal accesses the cell, the terminal needs to maintain continuous time-frequency synchronization with the network, and can switch new satellite beams and new satellites when the satellite moves, but the terminal does not receive downlinks in real time The accuracy of the instruction message or the satellite system configuration information carried in the downlink instruction message cannot meet the requirements of the terminal, and the terminal has different requirements for the accuracy of the satellite system configuration information at different stages. The terminal needs to request the network device to indicate the configuration information of one or more satellite systems, which is used for the operation behaviors such as Radio Resource Management (RRM) measurement, handover, and data reception of the satellite system. The satellite system configuration information includes the satellite operating orbit information. , beam direction information, satellite working mode information.

For example, when measuring the RRM of a neighboring cell, the terminal needs the beam width and frequency range of the neighboring cell so that it can detect the SSB signal or other reference signals, and the terminal needs the reference timing information of the current cell for the local cell, so that it can maintain real-time and local reference timing information. Beam synchronization of the cell; for another example, when the terminal switches between cells, it needs to determine the beam coverage of the cell, and needs to obtain satellite beam width information and satellite inclination information. For different operation behaviors, the terminal needs different satellite system configuration information.

FIG. 3 exemplarily shows a flowchart of a method for indicating satellite system configuration information based on terminal requirements provided by an embodiment of the present disclosure. As shown in the figure, the process mainly includes the following steps:

S301: The terminal sends indication information, where the indication information is used to indicate the satellite system configuration information requested by the terminal to be acquired.

In this step, the satellite system configuration information requested by the terminal includes satellite orbit height, satellite type, satellite inclination angle information, satellite ephemeris information, satellite almanac information, effective time of satellite orbit information, beam direction information, beam At least one of width information, beam usage frequency, beam coverage size, satellite load type, transmission distance of feeder link, feeder link direction information, timing reference point, clock offset rate, and clock correction coefficient.

In some embodiments, the indication information is carried in PUCCH signaling information, MAC CE signaling or RRC signaling.

S302: The network device receives the indication information sent by the terminal.

S303: The network device sends a downlink indication message to the terminal according to the indication information, where the downlink indication message carries the satellite system configuration information requested by the terminal to acquire.

In this step, the network device updates the satellite's tilt angle information, beam usage frequency and satellite timing information according to the indication information of the signaling information carried on the PUCCH, and sends the signaling information of the PDCCH carrying the downlink indication message to the terminal, and the downlink indication The message carries the latest satellite system configuration information requested by the terminal, or the network device updates the satellite operating orbit information, beam direction information, satellite load information, timing reference point, clock offset rate and at least one of the clock correction coefficients, and send RRC signaling carrying a downlink indication message to the terminal, where the downlink indication message carries the latest satellite system configuration information requested by the terminal to acquire.

In some embodiments, the downlink indication message can also be carried in dynamic signaling (such as DCI or MAC CE signaling).

The terminal can perform cell access, cell handover, interference avoidance, etc. according to the satellite system configuration information obtained by the request. In some embodiments of the present disclosure, after receiving the satellite system configuration information requested to be acquired, the terminal determines network parameters of the satellite according to the satellite system configuration information requested to be acquired, and performs at least one of the following operations:

Determine the coverage area of the satellite beam on the ground based on the satellite's tilt angle information, beam direction information, beam width information, and beam coverage size in the satellite system configuration information;

Determine Doppler compensation information based on beam direction information;

Determine the timing compensation information or Doppler compensation information based on the satellite load type, the transmission distance of the feeder link, and the feeder link direction information in the satellite system configuration information;

Timing compensation information or clock adjustment information is determined based on the timing reference point, clock offset rate, and clock correction coefficient in the satellite system configuration information.

In some embodiments, since the ephemeris information of the satellite usually has a validity period, the accuracy will gradually decrease as the time increases. In order for the terminal to obtain sufficiently accurate satellite system configuration information, such as ephemeris information, almanac information, beam direction information, etc., when the terminal is sleeping or shutting down, when the terminal exits the RRC connection state, the network device sends a downlink indication message to the terminal according to the indication information. , the downlink indication message is carried in PDCCH signaling information, DCI, MAC CE signaling or RRC signaling, and the downlink indication message carries the current satellite system configuration information, so that the terminal saves the latest satellite system configuration information. The latest satellite system configuration information (such as satellite ephemeris information) can prolong the time between two accesses, so that when the terminal accesses the cell again, it becomes more efficient and accurate.

In the above embodiments of the present disclosure, the terminal sends indication information through PUCCH signaling information, MAC CE or RRC signaling, and the indication information is used to indicate the satellite system configuration information requested by the terminal to acquire, and the network device sends the information requested by the terminal to acquire according to the indication information. Satellite system configuration information, saving resource overhead.

Based on the same technical idea, an embodiment of the present disclosure provides a network device, and the network device can implement the functions in the foregoing embodiments.

4 , the network device includes: a sending module 401 for sending a downlink instruction message, where the downlink instruction message carries satellite system configuration information, and the satellite system configuration information includes satellite orbit height, satellite type, satellite tilt angle information, and beam direction at least one of information, beam width information, beam coverage size, clock offset rate, and clock correction coefficient.

In the embodiment of the present disclosure, the downlink indication message includes at least one of MIB, SIB, RRC signaling, MAC CE signaling, and PDCCH signaling information.

In the embodiment of the present disclosure, the sending module 401 is configured to send a downlink indication message when the terminal exits the RRC connection state, and the downlink indication message carries the current satellite system configuration information.

In the embodiment of the present disclosure, the network device includes: a receiving module 402, configured to receive indication information sent by the terminal, where the indication information is used to indicate the satellite system configuration information requested by the terminal to acquire;

The sending module 401 is configured to send a downlink indication message according to the indication information, where the downlink indication message carries the satellite system configuration information requested by the terminal.

In the embodiment of the present disclosure, the indication information is carried in PUCCH signaling information, MAC CE signaling or RRC signaling.

In the embodiment of the present disclosure, the sending module 401 is configured to: send a downlink indication message to the terminal according to the indication information, and the downlink indication message is carried in the signaling information of PDCCH, downlink control information DCI, MAC CE signaling or RRC signaling.

In the embodiment of the present disclosure, the sending module 401 is configured to: when the terminal exits the RRC connection state, send a downlink indication message to the terminal according to the indication information, where the downlink indication message carries the current satellite system configuration information.

In an embodiment of the present disclosure, the satellite system configuration information requested to be acquired includes at least one of the following:

It should be noted here that the above-mentioned network device provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect. The same parts and beneficial effects will be described in detail.

Based on the same technical idea, an embodiment of the present disclosure provides a terminal, which can implement the functions in the foregoing embodiments.

5 , the terminal includes: a receiving module 501 for receiving a downlink instruction message sent by a network device, where the downlink instruction message carries satellite system configuration information, and the satellite system configuration information includes satellite orbit altitude, satellite type, satellite inclination angle information, At least one item of beam direction information, beam width information, beam coverage size, clock offset rate, and clock correction coefficient.

In the embodiment of the present disclosure, the receiving module 501 is configured to: when exiting the RRC connection state, receive a downlink indication message sent by a network device, where the downlink indication message carries the current satellite system configuration information.

In an embodiment of the present disclosure, the terminal further includes a sending module 502, configured to send indication information to the network device, where the indication information is used to indicate the satellite system configuration information requested by the terminal to be acquired;

The receiving module 501 is configured to receive a downlink indication message sent by the network device according to the indication information, where the downlink indication message carries the satellite system configuration information requested by the terminal to obtain.

In the embodiment of the present disclosure, the receiving module 501 is configured to: receive a downlink indication message sent by a network device according to the indication information, where the downlink indication message is carried in PDCCH signaling information, downlink control information DCI, MAC CE signaling or RRC signaling .

In the embodiment of the present disclosure, the receiving module 501 is configured to: when exiting the RRC connection state, receive a downlink indication message sent by the network device according to the indication information, where the downlink indication message carries the current satellite system configuration information.

In the embodiment of the present disclosure, the terminal further includes a processing module 503, configured to determine the network parameters of the satellite according to the satellite system configuration information, and perform at least one of the following operations:

Determine Doppler compensation information based on beam direction information;

It should be noted here that the above-mentioned terminal provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect, which is not the same as the method embodiments in this embodiment. The parts and beneficial effects will be described in detail.

Based on the same technical idea, an embodiment of the present disclosure also provides a network device, which can implement the method in the above-mentioned embodiment.

FIG. 6 exemplarily shows a schematic structural diagram of a network side device in an embodiment of the present disclosure. As shown in the figure, the network side device may include: a processor 601 , a memory 602 , a transceiver 603 and a bus interface 604 .

The processor 601 is responsible for managing the bus architecture and general processing, and the memory 602 may store data used by the processor 601 in performing operations. The transceiver 603 is used to receive and transmit data under the control of the processor 601 .

The bus architecture may include any number of interconnected buses and bridges, in particular one or more processors represented by processor 601 and various circuits of memory represented by memory 602 linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein. The bus interface provides the interface. The processor 601 is responsible for managing the bus architecture and general processing, and the memory 602 may store data used by the processor 601 in performing operations.

The processes disclosed in the embodiments of the present disclosure may be applied to the processor 601 or implemented by the processor 601 . In the implementation process, each step of the signal processing flow can be completed by an integrated logic circuit of hardware in the processor 601 or an instruction in the form of software. The processor 601 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the embodiments of the present disclosure. The disclosed methods, steps, and logical block diagrams of . A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present disclosure may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory 602, and the processor 601 reads the information in the memory 602, and completes the steps of the signal processing flow in combination with its hardware. Specifically, the processor 601 is configured to read computer instructions in the memory 602 and execute the functions implemented by the network device in the processes shown in FIG. 2 and FIG. 3 .

Based on the same technical concept, an embodiment of the present disclosure further provides a terminal, which can implement the method in the above-mentioned embodiment.

FIG. 7 exemplarily shows a schematic structural diagram of a terminal in an embodiment of the present disclosure. As shown in the figure, the terminal may include: a processor 701 , a memory 702 , a transceiver 703 and a bus interface 704 .

The processor 701 is responsible for managing the bus architecture and general processing, and the memory 702 may store data used by the processor 701 in performing operations. The transceiver 703 is used to receive and transmit data under the control of the processor 701 .

The bus architecture may include any number of interconnected buses and bridges, in particular one or more processors represented by processor 701 and various circuits of memory represented by memory 702 linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein. The bus interface provides the interface. The processor 701 is responsible for managing the bus architecture and general processing, and the memory 702 may store data used by the processor 701 in performing operations.

The processes disclosed in the embodiments of the present disclosure may be applied to the processor 701 or implemented by the processor 701 . In the implementation process, each step of the signal processing flow can be completed by an integrated logic circuit of hardware in the processor 701 or an instruction in the form of software. The processor 701 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and may implement or execute the embodiments of the present disclosure. The disclosed methods, steps, and logical block diagrams of . A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present disclosure may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor. The software module can be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory 702, and the processor 701 reads the information in the memory 702, and completes the steps of the signal processing flow in combination with its hardware. Specifically, the processor 701 is configured to read the computer instructions in the memory 702 and execute the functions implemented by the terminal in the processes shown in FIG. 2 and FIG. 3 .

Embodiments of the present disclosure further provide a computer-readable storage medium, where the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to cause the computer to execute the method executed by the network device in the foregoing embodiments.

Embodiments of the present disclosure further provide a computer-readable storage medium, where the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to cause the computer to execute the method executed by the terminal in the foregoing embodiments.

As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the present disclosure. It will be understood that each flow and/or block in the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a flow or flow of a flowchart and/or a block or blocks of a block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions The apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

These computer program instructions can also be loaded on a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process such that The instructions provide steps for implementing the functions specified in the flow or blocks of the flowcharts and/or the block or blocks of the block diagrams.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present disclosure without departing from the spirit and scope of the present disclosure. Thus, provided that these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is also intended to cover such modifications and variations.

Claims

A method for indicating configuration information of a satellite system, applied to network equipment, is characterized in that, comprising:

Send a downlink instruction message, where the downlink instruction message carries satellite system configuration information, where the satellite system configuration information includes satellite orbit height, satellite type, satellite tilt angle information, beam direction information, beam width information, beam coverage size, clock At least one of skew rate and clock correction factor.
The method according to claim 1, wherein the downlink indication message comprises a master information block (MIB), a system information block (SIB), radio resource control (RRC) signaling, medium access control unit (MAC CE) signaling, and downlink control channel (PDCCH) at least one item of signaling information.
The method of claim 1, wherein the sending a downlink indication message comprises:

When the terminal exits the RRC connection state, the downlink indication message is sent, and the downlink indication message carries the current satellite system configuration information.
The method of claim 1, further comprising:

receiving indication information sent by the terminal, where the indication information is used to indicate the satellite system configuration information requested by the terminal to be acquired;

The sending a downlink indication message includes:

The downlink indication message is sent according to the indication information, where the downlink indication message carries the satellite system configuration information requested by the terminal to be acquired.
The method of claim 4, wherein the indication information is carried in signaling information of an uplink control channel PUCCH, MAC CE signaling or RRC signaling.
The method according to claim 4, wherein the sending the downlink indication message according to the indication information comprises:

Send the downlink indication message to the terminal according to the indication information, where the downlink indication message is carried in PDCCH signaling information, downlink control information DCI, MAC CE signaling or RRC signaling.
The method according to claim 6, wherein the sending a downlink indication message to the terminal according to the indication information comprises:

When the terminal exits the RRC connected state, the downlink indication message is sent to the terminal according to the indication information, and the downlink indication message carries the current satellite system configuration information.
The method according to any one of claims 4-7, wherein the satellite system configuration information requested to be acquired includes at least one of the following:

Satellite orbit altitude, satellite type, satellite tilt angle information, satellite ephemeris information, satellite almanac information, effective time of satellite orbit information, beam direction information, beam width information, beam usage frequency, beam coverage size, satellite load Type, transmission distance of feeder link, feeder link direction information, timing reference point, clock skew rate, clock correction factor.
A method for indicating satellite system configuration information, comprising:

Receive a downlink instruction message sent by a network device, where the downlink instruction message carries satellite system configuration information, where the satellite system configuration information includes satellite orbit height, satellite type, satellite tilt angle information, beam direction information, beam width information, and beam width information. At least one of coverage size, clock skew rate, and clock correction factor.
The method according to claim 9, wherein the downlink indication message comprises a master information block (MIB), a system information block (SIB), radio resource control (RRC) signaling, medium access control unit (MAC CE) signaling, and downlink control channel (PDCCH) at least one item of signaling information.
The method according to claim 9, wherein the receiving a downlink indication message sent by the network device comprises:

When exiting the RRC connected state, the downlink indication message sent by the network device is received, where the downlink indication message carries the current satellite system configuration information.
The method of claim 9, further comprising:

Sending indication information to the network device, where the indication information is used to indicate the satellite system configuration information that the terminal requests to acquire;

The receiving a downlink indication message sent by the network device includes:

Receive the downlink indication message sent by the network device according to the indication information, where the downlink indication message carries the satellite system configuration information requested by the terminal to be acquired.
The method according to claim 12, wherein the indication information is carried in the signaling information of the uplink control channel PUCCH, the medium access control unit MAC CE signaling or the radio resource control RRC signaling.
The method according to claim 12, wherein the receiving the downlink indication message sent by the network device according to the indication information comprises:

Receive a downlink indication message sent by the network device according to the indication information, where the downlink indication message is carried in PDCCH signaling information, downlink control information DCI, MAC CE signaling or RRC signaling.
The method according to claim 14, wherein the receiving a downlink indication message sent by the network device according to the indication information comprises:

When exiting the RRC connection state, a downlink indication message sent by the network device according to the indication information is received, where the downlink indication message carries the current satellite system configuration information.
The method according to any one of claims 12-15, wherein the satellite system configuration information requested to be acquired includes at least one of the following:

Satellite orbit altitude, satellite type, satellite tilt angle information, satellite ephemeris information, satellite almanac information, effective time of satellite orbit information, beam direction information, beam width information, beam usage frequency, beam coverage size, satellite load Type, transmission distance of feeder link, feeder link direction information, timing reference point, clock skew rate, clock correction factor.
The method of any one of claims 9-15, further comprising:

Determine the network parameters of the satellite according to the satellite system configuration information, and perform at least one of the following operations:

Determine whether to randomly access the corresponding satellite cell based on the satellite orbit altitude or satellite type in the satellite system configuration information;

Determine the position information of the satellite based on the ephemeris information of the satellite or the almanac information of the satellite in the satellite system configuration information, and the position information is used for Doppler compensation, timing compensation or cell handover;

Determine the coverage area of the satellite beam on the ground based on the satellite's tilt angle information or beam direction information, beam width information, and beam coverage size in the satellite system configuration information;

determining Doppler compensation information based on the direction information of the beam;

Determine timing compensation information or Doppler compensation information based on the satellite load type, the transmission distance of the feeder link, or the feeder link direction information in the satellite system configuration information;

Timing compensation information or clock adjustment information is determined based on a timing reference point, a clock offset rate or a clock correction coefficient in the satellite system configuration information.
A network device, characterized in that it includes:

A sending module, configured to send a downlink instruction message, where the downlink instruction message carries satellite system configuration information, the satellite system configuration information includes satellite orbit height, satellite type, satellite tilt angle information, beam direction information, beam width information, At least one of beam coverage size, clock offset rate, and clock correction factor.
The network device according to claim 18, wherein the downlink indication message comprises a master information block (MIB), a system information block (SIB), radio resource control (RRC) signaling, medium access control unit (MAC CE) signaling, and downlink control channel. At least one item of signaling information of the PDCCH.
The network device according to claim 18, wherein the sending module is specifically configured to:

When the terminal exits the RRC connected state, the downlink indication message is sent, and the downlink indication message carries the current satellite system configuration information.
The network device according to claim 18, wherein the network device further comprises a receiving module,

The receiving module is configured to receive indication information sent by the terminal, where the indication information is used to indicate the satellite system configuration information requested by the terminal to acquire;

The sending module is specifically used for:

The downlink indication message is sent according to the indication information, where the downlink indication message carries the satellite system configuration information requested by the terminal to be acquired.
The network device according to claim 21, wherein the indication information is carried in the signaling information of the uplink control channel PUCCH, MAC CE signaling or RRC signaling.
The network device according to claim 21, wherein the sending module is specifically configured to:

Send the downlink indication message to the terminal according to the indication information, where the downlink indication message is carried in PDCCH signaling information, downlink control information DCI, MAC CE signaling or RRC signaling.
The network device according to claim 23, wherein the sending module is specifically configured to:

When the terminal exits the RRC connected state, the downlink indication message is sent to the terminal according to the indication information, where the downlink indication message carries the current satellite system configuration information.
The network device according to any one of claims 21-24, wherein the satellite system configuration information requested to be acquired includes at least one of the following:

Satellite orbit altitude, satellite type, satellite tilt angle information, satellite ephemeris information, satellite almanac information, effective time of satellite orbit information, beam direction information, beam width information, beam usage frequency, beam coverage size, satellite load Type, transmission distance of feeder link, feeder link direction information, timing reference point, clock skew rate, clock correction factor.
A terminal, characterized in that it includes:

a receiving module, configured to receive a downlink instruction message sent by a network device, where the downlink instruction message carries satellite system configuration information, and the satellite system configuration information includes satellite orbit height, satellite type, satellite tilt angle information, beam direction information, At least one of beam width information, beam coverage size, clock offset rate, and clock correction coefficient.
The terminal according to claim 26, wherein the downlink indication message comprises a master information block (MIB), a system information block (SIB), radio resource control (RRC) signaling, medium access control unit (MAC CE) signaling, and downlink control channel (PDCCH) at least one item of signaling information.
The terminal according to claim 26, wherein the receiving module is specifically configured to:

When exiting the RRC connection state, the downlink indication message sent by the network device is received, where the downlink indication message carries the current satellite system configuration information.
The terminal according to claim 26, wherein the terminal further comprises a sending module,

The sending module is configured to send indication information to the network device, where the indication information is used to indicate the satellite system configuration information requested by the terminal to obtain;

The receiving module is specifically used for:

Receive the downlink indication message sent by the network device according to the indication information, where the downlink indication message carries the satellite system configuration information requested by the terminal to be acquired.
The terminal according to claim 29, wherein the indication information is carried in the signaling information of the uplink control channel PUCCH, the medium access control unit MAC CE signaling or the radio resource control RRC signaling.
The terminal according to claim 29, wherein the receiving module is specifically configured to:

Receive a downlink indication message sent by the network device according to the indication information, where the downlink indication message is carried in PDCCH signaling information, downlink control information DCI, MAC CE signaling or RRC signaling.
The terminal according to claim 31, wherein the receiving module is specifically configured to:

When exiting the RRC connection state, a downlink indication message sent by the network device according to the indication information is received, where the downlink indication message carries the current satellite system configuration information.
The terminal according to any one of claims 29-32, wherein the satellite system configuration information requested to be acquired includes at least one of the following:

Satellite orbit altitude, satellite type, satellite tilt angle information, satellite ephemeris information, satellite almanac information, effective time of satellite orbit information, beam direction information, beam width information, beam usage frequency, beam coverage size, satellite load Type, transmission distance of feeder link, feeder link direction information, timing reference point, clock skew rate, clock correction factor.
The terminal according to any one of claims 26-32, wherein the terminal further comprises a processing module,

The processing module is configured to determine the network parameters of the satellite according to the satellite system configuration information, and perform at least one of the following operations:

Determine whether to randomly access the corresponding satellite cell based on the satellite orbit altitude or satellite type in the satellite system configuration information;

Determine the position information of the satellite based on the ephemeris information of the satellite or the almanac information of the satellite in the satellite system configuration information, and the position information is used for Doppler compensation, timing compensation or cell handover;

Determine the coverage area of the satellite beam on the ground based on the satellite's tilt angle information or beam direction information, beam width information, and beam coverage size in the satellite system configuration information;

determining Doppler compensation information based on the direction information of the beam;

Determine timing compensation information or Doppler compensation information based on the satellite load type, the transmission distance of the feeder link, or the feeder link direction information in the satellite system configuration information;

Timing compensation information or clock adjustment information is determined based on a timing reference point, a clock offset rate or a clock correction coefficient in the satellite system configuration information.
A network device, comprising a processor, a memory, and a transceiver;

the memory for storing computer instructions;

the processor, configured to read the computer instruction and control the transceiver to send a downlink instruction message;

The transceiver is configured to send a downlink instruction message under the control of the processor, where the downlink instruction message carries satellite system configuration information, and the satellite system configuration information includes satellite orbit height, satellite type, satellite inclination angle information, beam at least one of direction information, beam width information, beam coverage size, clock offset rate, and clock correction coefficient.
The network device according to claim 35, wherein the downlink indication message comprises a master information block (MIB), a system information block (SIB), radio resource control (RRC) signaling, medium access control unit (MAC CE) signaling, and a downlink control channel. At least one item of signaling information of the PDCCH.
The network device according to claim 35, wherein the transceiver is specifically used for:

When the terminal exits the RRC connected state, the downlink indication message is sent, and the downlink indication message carries the current satellite system configuration information.
The network device of claim 35, wherein,

The transceiver is further configured to receive indication information sent by the terminal, where the indication information is used to indicate the satellite system configuration information that the terminal requests to acquire;

The transceiver is specifically used for:

The downlink indication message is sent according to the indication information, where the downlink indication message carries the satellite system configuration information requested by the terminal to be acquired.
The network device according to claim 38, wherein the indication information is carried in signaling information of an uplink control channel PUCCH, MAC CE signaling or RRC signaling.
The network device of claim 38, wherein the transceiver is specifically used for:

Send the downlink indication message to the terminal according to the indication information, where the downlink indication message is carried in PDCCH signaling information, downlink control information DCI, MAC CE signaling or RRC signaling.
The network device according to claim 40, wherein the transceiver is specifically used for:

When the terminal exits the RRC connected state, the downlink indication message is sent to the terminal according to the indication information, where the downlink indication message carries the current satellite system configuration information.
The network device according to any one of claims 38-41, wherein the satellite system configuration information requested to be acquired includes at least one of the following:

Satellite orbit altitude, satellite type, satellite tilt angle information, satellite ephemeris information, satellite almanac information, effective time of satellite orbit information, beam direction information, beam width information, beam usage frequency, beam coverage size, satellite load Type, transmission distance of feeder link, feeder link direction information, timing reference point, clock skew rate, clock correction factor.
A terminal, characterized in that it includes a processor, a memory, and a transceiver;

the memory for storing computer instructions;

The processor is configured to read the computer instruction and control the transceiver to receive downlink indication information sent by the network device;

The transceiver is configured to receive a downlink instruction message sent by a network device under the control of the processor, where the downlink instruction message carries satellite system configuration information, and the satellite system configuration information includes satellite orbit height, satellite type, satellite at least one of the tilt angle information, the beam direction information, the beam width information, the beam coverage size, the clock offset rate, and the clock correction coefficient.
The terminal according to claim 43, wherein the downlink indication message comprises a master information block (MIB), a system information block (SIB), radio resource control (RRC) signaling, medium access control unit (MAC CE) signaling, and downlink control channel (PDCCH) at least one item of signaling information.
The terminal according to claim 43, wherein the transceiver is specifically used for:

When exiting the RRC connection state, the downlink indication message sent by the network device is received, where the downlink indication message carries the current satellite system configuration information.
The terminal of claim 43, wherein,

The transceiver is further configured to send indication information to the network device, where the indication information is used to indicate the satellite system configuration information that the terminal requests to acquire;

The transceiver is specifically used for:

Receive the downlink indication message sent by the network device according to the indication information, where the downlink indication message carries the satellite system configuration information requested by the terminal to be acquired.
The terminal according to claim 46, wherein the indication information is carried in the signaling information of the uplink control channel PUCCH, the medium access control unit MAC CE signaling or the radio resource control RRC signaling.
The terminal according to claim 46, wherein the transceiver is specifically used for:

Receive a downlink indication message sent by the network device according to the indication information, where the downlink indication message is carried in PDCCH signaling information, downlink control information DCI, MAC CE signaling or RRC signaling.
The terminal according to claim 48, wherein the transceiver is specifically used for:

When exiting the RRC connection state, a downlink indication message sent by the network device according to the indication information is received, where the downlink indication message carries the current satellite system configuration information.
The terminal according to any one of claims 46-49, wherein the satellite system configuration information requested to be acquired includes at least one of the following:

Satellite orbit altitude, satellite type, satellite tilt angle information, satellite ephemeris information, satellite almanac information, effective time of satellite orbit information, beam direction information, beam width information, beam usage frequency, beam coverage size, satellite load Type, transmission distance of feeder link, feeder link direction information, timing reference point, clock skew rate, clock correction factor.
The terminal according to any one of claims 43-49, wherein,

The processor is further configured to determine network parameters of the satellite according to the satellite system configuration information, and perform at least one of the following operations:

Determine whether to randomly access the corresponding satellite cell based on the satellite orbit altitude or satellite type in the satellite system configuration information;

Determine the position information of the satellite based on the ephemeris information of the satellite or the almanac information of the satellite in the satellite system configuration information, and the position information is used for Doppler compensation, timing compensation or cell handover;

Determine the coverage area of the satellite beam on the ground based on the satellite's tilt angle information or beam direction information, beam width information, and beam coverage size in the satellite system configuration information;

determining Doppler compensation information based on the direction information of the beam;

Determine timing compensation information or Doppler compensation information based on the satellite load type, the transmission distance of the feeder link, or the feeder link direction information in the satellite system configuration information;

Timing compensation information or clock adjustment information is determined based on a timing reference point, a clock offset rate or a clock correction coefficient in the satellite system configuration information.
A computer-readable storage medium, characterized in that, the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to cause the computer to perform the execution of any one of claims 1-8. method described.
A computer-readable storage medium, characterized in that, the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to cause the computer to execute any one of claims 9-17. method described.