WO2025236484A1 - Communication processing method, system and apparatus, communication device, storage medium, and computer program product - Google Patents

Abstract

The present application relates to a communication processing method and apparatus, a communication device, a storage medium, and a computer program product. The method is applied to a terminal, and comprises: acquiring first information sent by a satellite, the first information at least comprising operating mode indication information and/or a store-and-forward related auxiliary parameter; and performing communication processing on the basis of the first information.

Description

Communication processing methods, systems, devices, communication equipment, storage media, and computer program products

Related applications

This application claims priority to Chinese patent application filed on May 17, 2024, with application number 2024106182045, entitled "Communication Processing Method, System, Apparatus, Communication Equipment, Storage Medium and Computer Program Product", the entire contents of which are incorporated herein by reference.

Technical Field

This application relates to the field of communication technology, and in particular to a communication processing method, system, apparatus, communication equipment, storage medium, and computer program product.

Background Technology

In regenerative mode, satellites can function as access network equipment and some or all of the core network equipment, and possess store-and-forward capabilities. For terminals lacking end-to-end transmission capabilities, such as IoT devices in oceans or deserts, data can be transmitted via satellite.

When a satellite is in store-and-forward mode, its onboard storage resources constitute its entire service capability. These onboard storage resources include the satellite's own storage capacity and those that can be offloaded to other satellites via inter-satellite links. However, if a terminal encounters insufficient satellite capacity during data transmission and its data cannot be offloaded in segments, the terminal will be unable to successfully transmit data, resulting in significant waste of terminal power consumption and transmission resources.

Summary of the Invention

A communication processing method, applied to a terminal, the method comprising:

Acquire first information transmitted by the satellite, the first information including at least working mode indication information and/or store-and-forward related auxiliary parameters;

Communication processing is performed based on the first information.

In one embodiment, the store-and-forward related auxiliary parameters include the store-and-forward related auxiliary parameters of the currently serving satellite and/or the store-and-forward related auxiliary parameters of other satellites in the constellation to which the currently serving satellite belongs.

In one embodiment, the store-and-forward related auxiliary parameters of the currently serving satellite include at least one or more of the following: satellite identifier, store-and-forward identifier, storage capacity indication information, expected delivery time related parameters, next service time related parameters, and ephemeris information related parameters;

The store-and-forward related auxiliary parameters of other satellites in the constellation where the currently serving satellite is located include at least one or more of the following: satellite identifier, satellite ephemeris information, satellite start time, start time/start time list, duration/duration list, and start time/start time list and duration/duration list for each other satellite in its normal operating mode or when the feed link is unavailable.

In one embodiment, the operating mode indication information is used to identify the current operating mode of the satellite, which is selected from either store-and-forward mode or normal operating mode.

The satellite identifier is a satellite ID, which indicates the satellite associated with the store-and-forward auxiliary information;

The store-and-forward identifier is used to identify the service type supported by the satellite. The store-and-forward identifier is pre-configured and/or issued by the core network equipment. The service type includes one or more of SMS, data, non-real-time voice, and custom services.

The storage capacity indication information includes the total capacity of the on-board storage units and/or the remaining storage capacity of the on-board storage units.

The expected delivery time related parameters include the expected delivery time, and/or the start time and/or a list of start times for the satellite to operate in the feed link available area, and/or the duration and/or a list of durations for the satellite to operate in the feed link available area. The feed link includes a direct feed link and/or an indirect feed link. The indirect feed link can be transmitted to other satellites in the satellite constellation that have feed links via inter-satellite communication.

The next service time related parameters reflect the earliest and/or latest time of returning response information or related downlink data, and/or the duration of the satellite's next service, and/or a list of service durations of other satellites in the satellite constellation to which the satellite belongs. It includes at least one or more of the following: the earliest and/or latest time of the satellite returning to the current area, and/or the service duration; the earliest and/or latest time of other satellites in the satellite constellation carrying related response information or downlink data returning to the area, and/or the service duration; and/or a list of service durations.

The ephemeris information parameters reflect the current satellite ephemeris information and/or the list of satellite ephemeris information of the current satellite constellation. Specific parameters include one or more of the following: relevant orbital parameters, radius, elevation angle parameters, orbital speed, and footprint parameters; the footprint parameters include longitude and/or latitude.

In one embodiment, prior to acquiring the first information transmitted by the satellite, the method further includes:

Receive second information transmitted by the satellite, the second information including at least store-and-forward restriction indication information, and/or satellite operating mode indication information, and/or operating mode switching time.

In one embodiment, when the terminal supports store-and-forward mode and the second information further includes scheduling information of the first information, obtaining the first information transmitted by the satellite includes:

If the terminal does not have a valid version of the first information, or before the terminal RRC connection is established, restored, or rebuilt, or before the terminal performs EDT or uses PUR transmission, or the terminal is in RRC connection state and the validity timer has not been started, then the system message block broadcast by the satellite is obtained, and the system message block contains the first information.

In one embodiment, the communication processing based on the first information includes:

If the received second information contains the store-forward restriction indication information, and the store-forward restriction indication information indicates that it is not prohibited, or if the received second information contains operating mode indication information, then perform at least one of the following operations:

Execute the random access procedure;

To establish, restore, or rebuild a communication connection with the satellite;

If the received second information contains the store-and-forward restriction indication information and the store-and-forward restriction indication information indicates that it is prohibited, or if the received second information does not contain the store-and-forward restriction indication information and the cellBarred or cellBarred-NTN indication is received as prohibited, or if the received second information does not contain the operating mode indication information and the cellBarred or cellBarred-NTN indication is received as prohibited, then satellite cell reselection is performed.

In one embodiment, the communication processing based on the first information further includes:

Based on the first information, determine whether the service transmission conditions are met. If the service transmission conditions are met, then execute the step of establishing a communication connection with the satellite.

The service transmission conditions include at least one of the following: the store-and-forward identifier represents the service type that supports the target service corresponding to the data to be transmitted; the storage capacity indication information indicates that the capacity is greater than or equal to the amount of data to be transmitted; the data to be transmitted supports segmented transmission; the expected delivery time is shorter than the expected delivery time of the target service; and the next service time is shorter than the expected reception time of the return data of the target service.

In one embodiment, the method further includes: reporting the required service transmission conditions of the terminal to the satellite, wherein the required service transmission conditions include at least one of the following: service type, amount of data to be transmitted, whether multi-satellite augmentation is supported, expected delivery time, and expected time to receive downlink data or response.

In one embodiment, acquiring the first information transmitted by the satellite includes:

Receive the RRC reconfiguration message sent by the satellite, the RRC reconfiguration message containing first information.

In one embodiment, the method further includes:

Upon receiving the RRC reconfiguration message containing the first information sent by the satellite, or after obtaining the first information sent by the satellite, start the validity period timer;

When the validity period timer expires, the first information transmitted by the satellite is reacquired.

In one embodiment, the method further includes:

Upon receiving the RRC reconfiguration message from the satellite, the current validity period timer is stopped.

In one embodiment, if the first information indicates that the satellite's storage capacity is insufficient, the method further includes:

Receive the RRC release message sent by the satellite; the RRC release message contains a release reason, which indicates that the satellite has insufficient remaining storage capacity;

Release the RRC connection.

In one embodiment, the method further includes:

Receive the capability query request sent by the satellite;

The terminal's capability information is sent to the satellite, the capability information including indication information indicating whether the terminal supports store-and-forward mode capability.

In one embodiment, when the capability information indicates that the terminal does not support store-and-forward mode, the method further includes:

Receive the RRC release message sent by the satellite; the RRC release message contains a release reason, which indicates that the terminal does not support store-and-forward;

Release the RRC connection.

In one embodiment, the method further includes:

Receive a second information modification instruction sent by the satellite; the second information modification instruction is sent when the satellite's operating mode changes, the change including switching from normal operating mode to store-and-forward mode, or switching from store-and-forward mode to normal operating mode;

Reacquire the second information transmitted by the satellite.

In one embodiment, the method further includes: if the received second information includes a working mode switching time, the terminal starts a switching time timer after receiving the second information, the switching time timer being obtained based on the working mode switching time; and when the switching time timer expires, the second information transmitted by the satellite is reacquired.

In one embodiment, when the terminal is in a connected state, the method further includes:

When the acquisition of the first information begins, the acquisition timer is started;

If the first information is successfully obtained, the acquisition timer is stopped;

If the first information is not successfully obtained, the system will enter an idle state or re-establish a communication connection with the satellite after the acquisition timer has elapsed for the specified duration.

In one embodiment, entering an idle state or re-establishing a communication connection with the satellite includes:

If AS security is not activated and the terminal is not a terminal supporting RRC connection reconstruction for control plane CIoT EPS optimization, it enters an idle state.

If the AS security is activated, or if the terminal is a terminal that supports RRC connection reconstruction for control plane CIoT EPS optimization, then a communication connection is re-established with the satellite.

A communication processing method, applied to a satellite, the method comprising:

Send first information to the terminal, the first information including at least working mode indication information and/or store-and-forward related auxiliary parameters, for enabling the terminal to perform communication processing based on the first information.

In one embodiment, the store-and-forward related auxiliary parameters include the store-and-forward related auxiliary parameters of the currently serving satellite and/or the store-and-forward related auxiliary parameters of other satellites in the constellation to which the currently serving satellite belongs.

In one embodiment, the store-and-forward related auxiliary parameters of the currently serving satellite include at least one or more of the following: satellite identifier, store-and-forward identifier, storage capacity indication information, expected delivery time related parameters, next service time related parameters, and ephemeris information related parameters;

The store-and-forward related auxiliary parameters of other satellites in the constellation where the currently serving satellite is located include at least one or more of the following: satellite identifier, satellite ephemeris information, satellite start time, start time/start time list, duration/duration list, and start time/start time list and duration/duration list for each other satellite in its normal operating mode or when the feed link is unavailable.

In one embodiment, the operating mode indication information is used to identify the current operating mode of the satellite, which is selected from either store-and-forward mode or normal operating mode.

The satellite identifier is a satellite ID, which indicates the satellite associated with the store-and-forward auxiliary information;

The store-and-forward identifier is used to identify the service type supported by the satellite. The store-and-forward identifier is pre-configured and/or issued by the core network equipment. The service type includes one or more of SMS, data, non-real-time voice, and custom services.

The storage capacity indication information includes the total capacity of the on-board storage units and/or the remaining storage capacity of the on-board storage units.

The expected delivery time-related parameters include the expected delivery time, and/or the start time and/or a list of start times for the satellite to operate in the feed link available area, and/or the duration and/or a list of durations for the satellite to operate in the feed link available area. The feed link includes a direct feed link and/or an indirect feed link. The indirect feed link is transmitted to other satellites in the satellite constellation that have feed links through inter-satellite communication.

The next service time related parameters reflect the earliest and/or latest time of returning response information or related downlink data, and/or the duration of the satellite's next service, and/or a list of service durations of other satellites in the satellite constellation to which the satellite belongs. It includes at least one or more of the following: the earliest and/or latest time of the satellite returning to the current area, and/or the service duration; the earliest and/or latest time of other satellites in the satellite constellation carrying related response information or downlink data returning to the area, and/or the service duration; and/or a list of service durations.

The ephemeris information parameters reflect the current satellite ephemeris information and/or the list of satellite ephemeris information of the current satellite constellation. Specific parameters include one or more of the following: relevant orbital parameters, radius, elevation angle, operating speed, and footprint-related parameters; the footprint-related parameters include longitude and/or latitude.

In one embodiment, the method further includes:

Send a second message to the terminal, the second message including at least store-and-forward restriction indication information, and/or satellite operating mode indication information, and/or operating mode switching time.

In one embodiment, when the satellite is in store-and-forward mode, the operating mode indication information is store-and-forward mode;

When the satellite is in normal operating mode, the operating mode indication information is normal operating mode.

In one embodiment, the second information further includes scheduling information of the first information, the scheduling information being used to instruct the terminal to acquire a system message block transmitted by a satellite, the system message block containing the first information; the step of sending the first information to the terminal includes:

The broadcast contains a system message block that includes the first information.

In one embodiment, sending the first information to the terminal includes:

When the preset remaining storage capacity update condition is detected, the first information is modified;

The first message was broadcast after modification.

In one embodiment, the method further includes:

The system message block containing the first information is re-acquired by paging a terminal that is in an idle state or an RRC inactive state.

In one embodiment, sending the first information to the terminal further includes:

When the terminal is in a connected state, an RRC reconfiguration message is sent to the terminal, the RRC reconfiguration message containing the modified first information.

In one embodiment, the preset remaining storage capacity update condition includes at least one or more of the following: the remaining storage capacity changes to a preset threshold or a preset update cycle is reached.

In one embodiment, sending the first information to the terminal includes:

When insufficient remaining storage capacity is detected, the first information is modified and the modified first information is broadcast.

Send an RRC release message to the terminal; the RRC release message contains a release reason, which indicates that the satellite has insufficient remaining storage capacity.

In one embodiment, the method further includes:

Send a capability query request to the terminal;

The terminal receives capability information, which includes indications indicating whether the terminal supports store-and-forward mode capability.

In one embodiment, when the capability information indicates that the terminal does not support store-and-forward mode, sending the first information to the terminal includes:

When the satellite switches to store-and-forward mode, an RRC release message is sent to the terminal. The RRC release message contains a release reason, which indicates that the terminal does not support store-and-forward.

In one embodiment, when the capability information indicates that the terminal supports store-and-forward mode, the method further includes:

When the satellite operating mode is switched, an RRC reconfiguration message is sent to the terminal. The RRC reconfiguration message contains first information. The operating mode switch includes switching from normal operating mode to store-and-forward mode, or switching from store-and-forward mode to normal operating mode.

In one embodiment, the method further includes:

When the satellite's operating mode changes, the second information is modified and the modified second information is broadcast; the operating mode change includes switching from normal operating mode to store-and-forward mode, or switching from store-and-forward mode to normal operating mode.

Send a second information modification instruction to the terminal.

A wireless communication system, the system comprising a satellite and a terminal;

The satellite is used to send first information to the terminal, the first information including at least working mode indication information and/or store-and-forward related auxiliary parameters;

The terminal is used to acquire the first information transmitted by the satellite;

The terminal is also used for communication processing based on the first information.

A communication processing apparatus, applied to a terminal, the apparatus comprising:

The first acquisition module is used to acquire first information transmitted by the satellite, the first information including at least working mode indication information and/or store-and-forward related auxiliary parameters;

The first processing module is used to perform communication processing based on the first information.

A communication processing apparatus, applied to a satellite, the apparatus comprising:

A first sending module is configured to send first information to a terminal, the first information including at least working mode indication information and/or store-and-forward related auxiliary parameters, for enabling the terminal to perform communication processing based on the first information.

A communication device includes: a receiver and a processor;

The receiver is used to acquire first information transmitted by the satellite, the first information including at least working mode indication information and/or store-and-forward related auxiliary parameters;

The processor is used to perform communication processing based on the first information.

A communication device, comprising: a transmitter;

The transmitter is used to send first information to the terminal, the first information including at least working mode indication information and/or store-and-forward related auxiliary parameters, for enabling the terminal to perform communication processing based on the first information.

A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the above-described method.

A computer program product includes a computer program that, when executed by a processor, implements the steps of the above-described method.

The aforementioned communication processing method, apparatus, communication equipment, storage medium, and computer program product can be applied to a terminal. The terminal can obtain first information transmitted by the satellite, which includes at least operating mode indication information and/or store-and-forward related auxiliary parameters, and then perform communication processing based on the first information. In this solution, the terminal can obtain the satellite's operating mode indication information and/or store-and-forward related auxiliary parameters. Since the operating mode indication information and/or store-and-forward related auxiliary parameters can reflect the satellite's operating mode and current store-and-forward capability, the terminal can perform communication processing based on the satellite's operating mode and current store-and-forward capability. This avoids the problem of data failure due to the terminal blindly transmitting data, thereby saving terminal power consumption and transmission resources.

Attached Figure Description

To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the disclosed drawings without creative effort.

Figure 1 is an application scenario diagram of the communication processing method in one embodiment;

Figure 2 is a flowchart illustrating a communication processing method in one embodiment;

Figure 3 is a flowchart illustrating the communication processing method in another embodiment;

Figure 4 is a flowchart illustrating the communication processing method when the satellite is in store-and-forward mode and the terminal supports store-and-forward mode.

Figure 5 is a flowchart illustrating the communication processing method when the satellite is in transparent transmission mode and the terminal does not support store-and-forward mode.

Figure 6 is a flowchart illustrating the communication processing method when the satellite is in transparent transmission mode and the terminal supports store-and-forward mode.

Figure 7 is a structural block diagram of a communication processing device in one embodiment;

Figure 8 is a structural block diagram of the communication processing device in another embodiment;

Figure 9 is an internal structure diagram of a terminal device in one embodiment;

Figure 10 is a diagram of the internal structure of a satellite in one embodiment.

Detailed Implementation

The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

In the description of the embodiments in this application, the term "and/or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and/or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character "/" in this document generally indicates that the preceding and following related objects have an "or" relationship.

Furthermore, the use of terms such as "first,""second," etc., does not indicate any order or importance; rather, it uses the terms "first,""second," etc., to... Distinguish one element from another.

Figure 1 is a schematic diagram of an application scenario of a communication processing method provided in an embodiment of this application. As shown in Figure 1, the scenario includes a terminal 100 and a satellite 200. The terminal 100 and the satellite 200 can communicate through a communication link.

Terminal 100 may be a wireless terminal, which can be a device providing voice and/or other service data connectivity to a user, a handheld device with wireless connectivity, or other processing devices connected to a wireless modem. The wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN). The wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile device, exchanging voice and/or data with the RAN. The wireless terminal may also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile, remote station, remote terminal, access terminal, user terminal, user agent, user device, or user equipment, or other Internet of Things (IoT) device, without limitation herein.

In regenerative mode, the satellite can function as access network equipment and some or all of the core network equipment, and has store-and-forward capabilities. For terminals lacking end-to-end transmission capabilities, such as IoT devices in oceans or deserts, data can be transmitted via satellite. When a satellite supporting store-and-forward mode is in transparent transmission mode (i.e., normal operating mode), terminals that do not support store-and-forward mode are allowed to access. When the satellite switches from transparent transmission mode to store-and-forward mode, only terminals that support store-and-forward mode are allowed to access. At this time, the satellite can send notification messages to the terminals in a timely manner, avoiding invalid signaling interactions and data transmissions, and reducing terminal power consumption.

In traditional technologies, satellites do not simultaneously possess service links and power supply links, thus limiting their service capabilities for terminals. When a satellite is in store-and-forward mode, its limited onboard storage resources constitute its entire service capacity. These resources include the satellite's own storage and storage resources that can be offloaded to other satellites via inter-satellite links. If a terminal encounters insufficient satellite capacity during data transmission and its data cannot be offloaded in segments, the transmitted data becomes meaningless. Therefore, traditional technologies suffer from wasted terminal power consumption and transmission resources.

Based on the aforementioned traditional technologies, this application provides a communication processing method in which the terminal can obtain satellite operating mode indication information and/or store-and-forward related auxiliary parameters. Since the operating mode indication information and/or store-and-forward related auxiliary parameters reflect the satellite's operating mode and current store-and-forward capability, the terminal can perform communication processing based on the satellite's operating mode and current store-and-forward capability. This avoids the problem of data transmission failure due to the terminal blindly transmitting data, thereby saving terminal power consumption and transmission resources. It should be noted that the beneficial effects or technical problems solved by this application are not limited to this one; other implicit or related problems may also exist, as detailed in the following description of the embodiments.

The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

In one embodiment, as shown in FIG2, a communication processing method is provided. Taking the application of this method to the terminal device in FIG1 as an example, the method includes the following steps:

Step 202: Obtain the first information transmitted by the satellite.

The first information includes at least working mode indication information and/or store-and-forward related auxiliary parameters.

In this embodiment, the satellite can transmit first information. Specifically, the satellite can broadcast the first information, or it can transmit the first information through a specified message. For example, the satellite can send a Radio Resource Control (RRC) reconfiguration message containing the first information to the terminal. The terminal can receive the first information transmitted by the satellite. The first information includes at least operating mode indication information and/or store-and-forward related auxiliary parameters. The operating mode indication information identifies the satellite's current operating mode, which includes store-and-forward mode and normal operating mode. The store-and-forward related auxiliary parameters can include multiple parameters to reflect the satellite's store-and-forward capability.

Step 204: Perform communication processing based on the first information.

In this embodiment, after obtaining the first information, the terminal can determine whether the data to be transmitted can be transmitted via satellite. If so, the data to be transmitted is transmitted via satellite. The specific transmission process will be described in detail later.

Based on the above method, the terminal can obtain the satellite's operating mode indication information and/or store-and-forward related auxiliary parameters. Since the operating mode indication information and/or store-and-forward related auxiliary parameters reflect the satellite's operating mode and current store-and-forward capability, the terminal can... Communication processing based on satellite operating modes and current store-and-forward capabilities can avoid the problem of data failure caused by terminals blindly transmitting data, thereby saving terminal power consumption and transmission resources.

In some implementations, the store-and-forward related auxiliary parameters include the store-and-forward related auxiliary parameters of the currently serving satellite and/or the store-and-forward related auxiliary parameters of other satellites in the constellation to which the currently serving satellite belongs.

In some implementations, the store-and-forward related auxiliary parameters of the currently serving satellite include at least one or more of the following: satellite identifier, store-and-forward identifier, storage capacity indication information, expected delivery time related parameters, next service time related parameters, and ephemeris information related parameters.

The store-and-forward related auxiliary parameters of other satellites in the constellation where the currently serving satellite is located include at least one or more of the following: satellite identifier, satellite ephemeris information, satellite start time, start time/start time list, duration/duration list, and start time/start time list and duration/duration list for each other satellite in its normal operating mode or when the feed link is unavailable.

The operating mode indication information is used to identify the current operating mode of the satellite, which includes store-and-forward mode and normal operating mode.

The store-and-forward identifier is used to identify the types of services supported by the satellite. The store-and-forward identifier is pre-configured and/or issued by the core network equipment. Service types include one or more of SMS, data, non-real-time voice, and custom services. In one example, the store-and-forward identifier can specifically be an S&F ID.

The satellite identifier is the satellite ID, which indicates the satellite associated with the storage and forwarding of related auxiliary information.

Storage capacity indication information includes the total capacity of the relevant on-board storage units and/or the remaining storage capacity of the relevant on-board storage units.

Parameters related to the expected delivery time include the expected delivery time, and/or the start time and/or list of start times for the satellite to reach the feed link availability area, and/or the duration and/or list of durations for the satellite to remain in the feed link availability area. Feed links include direct feed links and/or indirect feed links. Indirect feed links can be transmitted via inter-satellite communication to other satellites in the constellation that have feed links. The expected delivery time can be in the format of remaining duration and/or UTC (Universal Time Coordinated).

The next service time parameters reflect the earliest and/or latest time of return of response information or related downlink data, and/or the duration of the satellite's next service, and/or a list of service durations of other satellites in the same constellation. It must include at least one or more of the following: the earliest and/or latest time of the satellite's return to the current area, and/or the service duration; the earliest and/or latest time of other satellites in the constellation carrying the relevant response information or downlink data's return to the area, and/or the service duration; and a list of service durations. The format can be the remaining duration, and/or UTC (Universal Time Coordinated).

The ephemeris information parameters reflect the current satellite ephemeris information and/or the list of satellite ephemeris information of the current satellite constellation. Specific parameters include one or more of the following: relevant orbital parameters, radius, elevation angle parameters, orbital speed, and footprint parameters; footprint parameters include longitude and/or latitude.

Based on the above scheme, the terminal can obtain the satellite's current working mode, the types of services the satellite supports for transmission, the storage capacity the satellite can provide, the satellite's expected delivery time and next service time, and thus comprehensively judge whether data can be transmitted, thereby improving the success rate of data transmission and saving terminal power consumption and transmission resources.

In some implementations, the method further includes receiving second information transmitted by the satellite before acquiring the first information transmitted by the satellite.

In this embodiment, the second information includes at least store-and-forward restriction indication information, and/or satellite operating mode indication information, and/or operating mode switching time. The second information may be carried by an SIB (System Information Block) 1 message. The store-and-forward restriction indication information can be either disabled or not disabled. The satellite operating mode indication information can be either normal mode (i.e., pass-through mode) or store-and-forward mode.

In some implementations, the working mode switching time may be the remaining time of the current working mode, or the UTC (Universal Time Coordinated) time at which the working mode switch occurs.

Based on the above scheme, the terminal can obtain the satellite's current operating mode by receiving the second information and determine whether it can access the satellite.

In some implementations, when the terminal supports store-and-forward mode and the second information also includes scheduling information of the first information, obtaining the first information transmitted by the satellite includes: if the terminal does not have a valid version of the first information, or if the terminal's RRC (Radio Resource Control) is not configured, the first information is obtained. Before the establishment, restoration, or reconstruction of a Radio Resource Control (RRC) connection, or before the terminal performs advance data transmission (EDT) or uses uplink resources (PUR) for transmission, or when the terminal is in RRC connection state and the expiration timer has not started, the system message block broadcast by the satellite is acquired. The system message block contains the first information.

In this embodiment of the application, when the terminal supports store-and-forward mode and the second information also includes scheduling information of the first information, the terminal can listen to the system message block broadcast by the satellite if any of the following conditions are met, and the system message block contains the first information. The conditions include: the terminal does not have a valid version of the first information; or, before the terminal's RRC connection is established, restored, or rebuilt; or, before the terminal performs EDT (Advance Data Transmission) or uses PUR (Uplink Resources) transmission; or, the terminal is in RRC connection state and the expiration timer has not been started.

Based on the above scheme, the terminal can obtain the first message broadcast by the satellite under certain conditions, thereby reducing the power consumption of the terminal.

The terminal can perform communication processing based on the first information in various ways. Specifically, it can establish a communication connection with the satellite, restore the communication connection, or rebuild the communication connection.

In some implementations, the communication processing based on the first information includes:

If the received second information contains the store-and-forward restriction indication information, and the store-and-forward restriction indication information indicates that it is not prohibited, or if the received second information contains operating mode indication information, then perform at least one of the following operations: execute a random access procedure; establish a communication connection with the satellite, or restore a communication connection, or rebuild a communication connection;

If the received second information contains the store-and-forward restriction indication information and the store-and-forward restriction indication information indicates that access is prohibited, or if the received second information does not contain the store-and-forward restriction indication information and the received cellBarred or cellBarred-NTN indicates that access is prohibited, or if the received second information does not contain the operating mode indication information and the received cellBarred or cellBarred-NTN indicates that access is prohibited, then it is considered that the satellite cell is currently prohibited from access, and satellite cell reselection is performed.

The satellite cell refers to the current cell in which the satellite provides services to the terminal.

In some implementations, the terminal can determine whether the service transmission conditions are met based on the first information; if the service transmission conditions are met, the terminal will execute the step of establishing a communication connection with the satellite.

In this embodiment, after obtaining the first information, the terminal can determine whether the service transmission conditions are met. If the service transmission conditions are met, the terminal sends a connection establishment request message to the satellite, the satellite sends a connection establishment message to the terminal, and then the terminal sends a connection establishment completion message to the satellite. The terminal then enters the connected state and performs data transmission. If the service transmission conditions are not met, no connection request is initiated.

In some implementations, the service transmission conditions include at least one of the following: the store-and-forward identifier indicates the service type supporting the target service corresponding to the data to be transmitted; the storage capacity indication information indicates a capacity greater than or equal to the amount of data to be transmitted; the data to be transmitted supports segmented transmission; the expected delivery time is shorter than the expected delivery time of the target service; and the next service time is shorter than the expected reception time of the returned data from the target service. If the terminal meets any of the above conditions, a communication connection is established with the satellite; if none of the above conditions are met, a connection request is not initiated.

In some implementations, the terminal may report the service transmission conditions required by the terminal to the satellite. The service transmission conditions include at least one of the following: service type, amount of data to be transmitted, whether multi-satellite augmentation is supported, expected delivery time, and expected time to receive downlink data or response.

Based on the above scheme, the terminal can determine whether the service transmission conditions are met through the first information, and when the service transmission conditions are met, it can establish a communication connection with the satellite and transmit data, thereby improving the success rate of data transmission.

In some implementations, obtaining the first information transmitted by the satellite includes receiving an RRC reconfiguration message transmitted by the satellite, the RRC reconfiguration message containing the first information.

In this embodiment, after the terminal establishes a connection with the satellite, the satellite can send an RRC reconfiguration message to the terminal via the communication connection. The terminal can receive the RRC reconfiguration message sent by the satellite, and the RRC reconfiguration message contains first information.

Based on the above scheme, after the terminal establishes a connection with the satellite, the satellite can send the first information to the terminal in a targeted manner, which improves the reliability of communication.

In some implementations, the method further includes: after receiving an RRC reconfiguration message containing first information sent by the satellite, or after acquiring the first information sent by the satellite, starting a validity period timer; and when the validity period timer reaches its set duration, reacquiring the first information sent by the satellite.

The validity period timer is used to set the validity period of the first information. This is because the satellite's operating mode indicates information and/or stores and forwards... The relevant auxiliary parameters may change. By using the validity period timer, the terminal can reacquire the first information transmitted by the satellite when the validity period timer expires, thus improving the real-time performance of acquiring the first information.

In some implementations, the method further includes stopping the current expiration timer after receiving an RRC reconfiguration message from the satellite.

In this embodiment of the application, after the terminal receives the RRC reconfiguration message sent by the satellite, since the RRC reconfiguration message contains the latest first information sent by the satellite, the terminal stops the current validity period timer and starts a new validity period timer at the same time.

In one example, the expiration timer in this application starts or restarts when the first information is successfully acquired or an RRC reconfiguration is successful. It stops when an RRC reconfiguration message containing the first information is received. Its timeout rule is that the terminal reacquires the first information.

In some implementations, if the first information indicates that the satellite's storage capacity is insufficient, the method further includes: receiving an RRC release message sent by the satellite; the RRC release message contains a release reason, which indicates that the satellite's remaining storage capacity is insufficient; and releasing the RRC connection.

In this embodiment, when the satellite's remaining storage capacity is insufficient, the satellite can modify the first information and rebroadcast the modified first information. While the terminal is in a connected state, the satellite can also send an RRC reconfiguration message to the terminal. This RRC reconfiguration message contains the first information, indicating that the satellite's storage capacity is insufficient. After receiving the RRC reconfiguration message, if the current transmission is not completed, the terminal caches all data from this transmission. The satellite can also send an RRC release message to the terminal, containing a release reason indicating that the satellite's remaining storage capacity is insufficient. After receiving the RRC release message, the terminal releases the RRC connection. After the RRC connection is successfully released, the terminal enters an idle state.

Based on the above scheme, when the satellite storage capacity is insufficient, the terminal can be notified to release the RRC connection, saving terminal power consumption and transmission resources.

In some implementations, the method further includes: receiving a capability query request sent by a satellite; and sending capability information of the terminal to the satellite, the capability information including indication information indicating whether the terminal supports store-and-forward mode capability.

In this embodiment, the satellite can send a capability query request to the terminal. After receiving the capability query request, the terminal sends its capability information to the satellite. This capability information includes indications indicating whether the terminal supports store-and-forward mode capability. In this way, the terminal can notify the satellite whether it possesses store-and-forward mode capability, facilitating subsequent processing by the satellite.

In some implementations, when the capability information indicates that the terminal does not support store-and-forward mode, the method further includes: receiving an RRC release message sent by the satellite; the RRC release message contains a release reason, which indicates that the terminal does not support store-and-forward; and releasing the RRC connection.

In this embodiment, when the capability information indicates that the terminal does not support store-and-forward mode, the satellite sends an RRC release message to the terminal when switching from normal operating mode to store-and-forward mode. This RRC release message includes a release reason, indicating that the terminal does not support store-and-forward. Upon receiving the RRC release message, the terminal releases the RRC connection. After successful RRC connection release, the terminal enters an idle state.

Based on the above scheme, when the terminal does not support store-and-forward mode, the terminal can be notified to release the RRC connection, saving terminal power consumption and transmission resources.

In some embodiments, the method further includes: receiving a second information modification instruction sent by a satellite; the second information modification instruction is sent when the satellite's operating mode is switched, the switch including switching from a normal operating mode to a store-and-forward mode, or switching from a store-and-forward mode to a normal operating mode; and reacquiring the second information sent by the satellite.

In this embodiment, when the satellite switches operating modes, it can modify the second information and rebroadcast it. For example, when the satellite switches from normal operating mode to store-and-forward mode, it modifies the second information and rebroadcasts it. Similarly, when the satellite switches from store-and-forward mode to normal operating mode, it modifies the second information and rebroadcasts it. Furthermore, the satellite can also send a second information modification instruction to the terminal. After receiving the second information modification instruction, the terminal re-receives the second information acquired by the satellite.

Based on the above scheme, when the satellite switches its working state, it can modify the second information and notify the terminal so that the terminal can know the latest working state of the satellite and facilitate subsequent data transmission.

In some embodiments, the method further includes: if the received second information includes a working mode switching time, then the terminal starts a switching time timer after receiving the second information, the switching time timer being obtained based on the working mode switching time; and when the switching time timer expires, reacquiring the second information transmitted by the satellite.

In some implementations, the value of the switching timer can be the same as the value of the validity period timer.

In some implementations, when the terminal is in a connected state, the method further includes: starting an acquisition timer when acquiring first information; stopping the acquisition timer if the first information is successfully acquired; and stopping the acquisition timer when the acquisition timer reaches its set timeout if the first information is not successfully acquired. After a certain period of time, it enters an idle state or re-establishes a communication connection with the satellite.

In this embodiment, the terminal may also be configured with an acquisition timer, which controls the duration of the acquisition process for the first information. When the terminal is in a connected state, the acquisition timer is started when the terminal begins acquiring the first information. If the terminal successfully acquires the first information within the timeout period, the terminal stops the acquisition timer. If the terminal fails to acquire the first information within the timeout period, it enters an idle state or re-establishes a communication connection with the satellite after the timeout period is reached. The strategy for the terminal to choose between entering an idle state or re-establishing a communication connection with the satellite can be configured by a technician.

Based on the above solution, the terminal can avoid being in the state of acquiring first information for a long time, thus saving terminal power consumption and transmission resources.

In some implementations, an optional approach is provided for entering an idle state or re-establishing a communication connection with the satellite, including: entering an idle state if AS (Access Stratum) security is not activated and the terminal is not a terminal optimized for control plane CIoT (Cellular IoT) EPS (Evolved Packet System) and supports RRC connection reconstruction; and re-establishing a communication connection with the satellite if AS security is activated or the terminal is a terminal optimized for control plane CIoT EPS and supports RRC connection reconstruction.

In one example, the acquisition timer in this application is started when the terminal begins acquiring the first information. It stops when the terminal successfully acquires the first information. The timeout handling strategy is as follows: if AS security is not activated and the terminal is not a terminal supporting RRC connection reconstruction for control plane CIoT EPS optimization, it enters an idle state; if AS security is activated, or the terminal is a terminal supporting RRC connection reconstruction for control plane CIoT EPS optimization, it re-establishes a communication connection with the satellite.

In one embodiment, as shown in Figure 3, a communication processing method is provided. Taking the application of this method to the satellite in Figure 1 as an example, the method includes the following steps:

Step 302: Send the first information to the terminal.

The first information includes at least working mode indication information and/or store-and-forward related auxiliary parameters, which are used to enable the terminal to perform communication processing based on the first information.

The specific processing procedure for this step can be referred to the relevant descriptions in the above embodiments, and will not be repeated here.

In some implementations, the store-and-forward related auxiliary parameters include the store-and-forward related auxiliary parameters of the currently serving satellite and/or the store-and-forward related auxiliary parameters of other satellites in the constellation to which the currently serving satellite belongs.

In some implementations, the store-and-forward related auxiliary parameters of the currently serving satellite include at least one or more of the following: satellite identifier, store-and-forward identifier, storage capacity indication information, expected delivery time related parameters, next service time related parameters, and ephemeris information related parameters.

The store-and-forward related auxiliary parameters of other satellites in the constellation where the currently serving satellite is located include at least one or more of the following: satellite identifier, satellite ephemeris information, satellite start time, start time/start time list, duration/duration list, and start time/start time list and duration/duration list for each other satellite in its normal operating mode or when the feed link is unavailable.

The operating mode indication information is used to identify the current operating mode of the satellite, which includes store-and-forward mode and normal operating mode.

The store-and-forward identifier is used to identify the types of services supported by the satellite. The store-and-forward identifier is pre-configured and/or issued by the core network equipment. Service types include one or more of SMS, data, non-real-time voice, and custom services. In one example, the store-and-forward identifier can specifically be an S&F ID.

The satellite identifier is the satellite ID, which indicates the satellite associated with the store-and-forward auxiliary information.

Storage capacity indication information includes the total capacity of the relevant on-board storage units and/or the remaining storage capacity of the relevant on-board storage units.

Parameters related to the expected delivery time include the expected delivery time, and/or the start time and/or list of start times for the satellite to reach the feed link availability area, and/or the duration and/or list of durations for the satellite to remain in the feed link availability area. Feed links include direct feed links and/or indirect feed links. Indirect feed links can be transmitted via inter-satellite communication to other satellites in the constellation that have feed links. The expected delivery time can be in the format of remaining duration and/or UTC (Universal Time Coordinated).

The next service time parameters reflect the earliest and/or latest time of returning response information or related downlink data, and/or the duration of the satellite's next service, and/or a list of service durations of other satellites in the satellite constellation. It should at least include the earliest and/or latest time the satellite will return to the current area, and/or the service duration, and the satellite carrying the relevant response information or downlink data. The earliest and/or latest time when other satellites in the constellation arrived in the region, and/or the service duration, and/or one or more of the following lists. The format may be the remaining duration, and/or UTC (Universal Time Coordinated).

The ephemeris information parameters reflect the current satellite ephemeris information and/or the list of satellite ephemeris information of the current satellite constellation. Specific parameters include one or more of the following: relevant orbital parameters, radius, elevation angle parameters, orbital speed, and footprint parameters; footprint parameters include longitude and/or latitude.

Based on the above scheme, the terminal can obtain the satellite's current working mode, the types of services the satellite supports for transmission, the storage capacity the satellite can provide, the satellite's expected delivery time and next service time, and thus comprehensively judge whether data can be transmitted, thereby improving the success rate of data transmission and saving terminal power consumption and transmission resources.

In some implementations, the method further includes sending a second message to the terminal.

The second information includes at least store-and-forward restriction indication information, and/or satellite operating mode indication information, and/or operating mode switching time.

The specific processing procedure for this step can be referred to the relevant descriptions in the above embodiments, and will not be repeated here.

In some implementations, when the satellite is in store-and-forward mode, the operating mode indication information is store-and-forward mode; when the satellite is in normal operating mode, the operating mode indication information is normal operating mode.

In some implementations, the second information further includes scheduling information of the first information. The scheduling information is used to instruct the terminal to acquire a system message block transmitted by the satellite, and the system message block contains the first information. Accordingly, sending the first information to the terminal includes broadcasting the system message block containing the first information.

In this embodiment of the application, the satellite can add first information to the system message block and broadcast the system message block with the added first information.

Based on the above scheme, the satellite broadcast contains a system message block with first information. The terminal can obtain the first message of the satellite broadcast when the conditions are met, thereby knowing the satellite's working mode and current store-and-forward capability. The terminal can then perform communication processing based on the satellite's working mode and current store-and-forward capability, thus avoiding the problem of data failure due to the terminal blindly transmitting data, thereby saving terminal power consumption and transmission resources.

In some implementations, sending first information to the terminal includes: modifying the first information when a preset remaining storage capacity update condition is detected; and broadcasting the modified first information.

In this embodiment, the satellite may be configured with preset remaining storage capacity update conditions. These preset remaining storage capacity update conditions include at least one or more of the following: the remaining storage capacity changes to a preset threshold, or a preset update cycle is reached.

Satellites can proactively/periodically request reports of remaining storage capacity from onboard storage units. After acquiring the remaining storage capacity, the satellite can determine whether preset remaining storage capacity update conditions are met based on a threshold synchronization mechanism. Specifically, storage capacity can be categorized into threshold levels; for example, preset thresholds can be arranged in descending order, including A1, ..., AN. Whenever the satellite detects a change in storage capacity to the preset threshold, the relevant onboard storage unit reports this to the satellite. Upon receiving this message, the satellite can modify the initial information and broadcast the modified initial information.

In another implementation, the satellite can also modify the first information and broadcast the modified first information every time a preset update cycle is reached.

Based on the above scheme, the satellite can promptly notify the terminal of updates on the remaining storage capacity, improving the real-time information acquisition capability of the terminal.

In some implementations, the method further includes: notifying a terminal in an idle state or an RRC inactive state to reacquire a system message block containing the first information via paging.

In this embodiment of the application, after the satellite broadcasts the modified first information, for terminals in an idle state or an RRC inactive state, the satellite can notify these terminals to reacquire the system message block containing the first information through paging, so that the terminals in the idle state or an RRC inactive state can obtain the updated information on the remaining storage capacity in a timely manner.

In some implementations, sending the first information to the terminal further includes: when the terminal is in a connected state, sending an RRC reconfiguration message to the terminal, the RRC reconfiguration message containing the modified first information.

In this embodiment of the application, for a terminal in a connected state, the satellite can send first information to the terminal in a directional manner, thereby improving the reliability of communication.

In some implementations, sending the first information to the terminal includes: modifying the first information and broadcasting the modified first information when insufficient remaining storage capacity is detected; sending an RRC release message to the terminal; the RRC release message includes a release reason, the release reason indicating the satellite Insufficient remaining storage capacity.

In this embodiment, when the satellite's remaining storage capacity is insufficient, the satellite can modify the first information and rebroadcast the modified first information. For terminals in a connected state, the satellite can also send an RRC reconfiguration message to the terminal. This RRC reconfiguration message contains the first information, indicating that the satellite's storage capacity is insufficient. The satellite can also send an RRC release message to the terminal, containing a release reason indicating that the satellite's remaining storage capacity is insufficient. After receiving the RRC release message, the terminal releases the RRC connection. After the RRC connection is successfully released, the terminal enters an idle state.

Based on the above scheme, when the satellite storage capacity is insufficient, the terminal can be notified to release the RRC connection, saving terminal power consumption and transmission resources.

In some implementations, the method further includes: sending a capability query request to the terminal; receiving capability information sent by the terminal, the capability information including indication information indicating whether the terminal supports store-and-forward mode capability.

The specific processing procedure for this step can be referred to the relevant descriptions in the above embodiments, and will not be repeated here.

In some implementations, when the capability information indicates that the terminal does not support store-and-forward mode, first information is sent to the terminal, including: when the satellite switches to store-and-forward mode, sending an RRC release message to the terminal, the RRC release message containing a release reason, the release reason indicating that the terminal does not support store-and-forward.

The specific processing procedure for this step can be referred to the relevant descriptions in the above embodiments, and will not be repeated here.

In some implementations, when the capability information indicates that the terminal supports store-and-forward mode, the method further includes: sending an RRC reconfiguration message to the terminal when the satellite operating mode is switched, the RRC reconfiguration message containing first information, the operating mode switch including switching from normal operating mode to store-and-forward mode, or switching from store-and-forward mode to normal operating mode.

In this embodiment, for a terminal that supports store-and-forward mode and is in a connected state, when the satellite switches operating modes, it can send an RRC reconfiguration message to the terminal. This RRC reconfiguration message contains first information. For example, when the satellite switches from normal operating mode to store-and-forward mode, it sends an RRC reconfiguration message to the terminal, and the RRC reconfiguration message contains the first information; or, when the satellite switches from store-and-forward mode to normal operating mode, it sends an RRC reconfiguration message to the terminal, and the RRC reconfiguration message contains a first information field, specifically indicating that the operating mode is normal operating mode, with the remaining content empty.

Based on the above scheme, the satellite can promptly notify the terminal when a working mode switch occurs, so that the terminal can carry out subsequent data transmission.

In some implementations, the method further includes: modifying the second information and broadcasting the modified second information when the satellite operating mode is switched; the operating mode switch includes switching from a normal operating mode to a store-and-forward mode, or switching from a store-and-forward mode to a normal operating mode; sending a second information modification instruction to the terminal, the second information modification instruction may be carried by a paging message.

In this embodiment, when the satellite switches operating modes, it can modify the second information and rebroadcast it. Furthermore, the satellite can send a second information modification instruction to the terminal. Upon receiving the second information modification instruction, the terminal re-receives the second information sent by the satellite.

Based on the above scheme, the satellite can modify the second information and notify the terminal when the working mode is switched, so that the terminal can know the latest working status of the satellite and facilitate subsequent data transmission.

In one embodiment, as shown in FIG4, this application provides an example of a communication processing method, which can be applied to a communication system that includes at least a satellite and a terminal. The satellite is in store-and-forward mode, the terminal supports store-and-forward mode, and the initial state of the terminal is an idle state. The method specifically includes steps 401-416.

Step 401: Satellite broadcasts the second message.

The second information includes at least store-and-forward restriction indication information and/or satellite operating mode indication information, and/or scheduling information of the first information; the store-and-forward restriction indication information is not prohibited, and the operating mode indication information is store-and-forward operating mode.

Step 402: The terminal obtains a system message block containing the first information and starts the acquisition timer.

The first piece of information includes working mode indication information, store-and-forward identifier, storage capacity indication information, expected delivery time, and next service time.

Step 403: The terminal successfully obtains the system message block, stops the acquisition timer, and starts the expiration timer.

Step 404: The terminal determines whether the service transmission conditions are met.

If the conditions are met, proceed to step 405; otherwise, do not initiate a connection request.

The service transmission conditions include at least the following: a store-and-forward identifier indicating the service type supporting the target service corresponding to the data to be transmitted; storage capacity indication information indicating a capacity greater than or equal to the amount of data to be transmitted; the data to be transmitted supporting segmented transmission; and the expected delivery time. Shorter than the expected delivery time of the target business, or the next service time is shorter than the expected reception time of the returned data of the target business, or one or more of the following:

Step 405: The terminal sends a connection establishment request message to the satellite.

Step 406: The satellite sends a connection establishment message to the terminal.

Step 407: The terminal sends a connection establishment complete message to the satellite.

Step 408: The terminal enters the connection state and begins data transmission.

Step 409: When the satellite detects that the preset remaining storage capacity update conditions are met, it modifies the first information and rebroadcasts the first information.

Step 410: The satellite sends an RRC reconfiguration message to the terminal.

The RRC reconfiguration message contains the modified first information.

Step 411: The terminal restarts the expiration timer and sends a reconfiguration completion message to the satellite after the reconfiguration is completed.

Step 412: When the validity period timer expires, the terminal reacquires the system message block containing the first information and starts the acquisition timer again.

Step 413: The terminal successfully obtains the system message block (containing the first information), stops the acquisition timer, and restarts the expiration timer.

Step 414: When the satellite detects that the remaining storage capacity is insufficient, it modifies the first information and rebroadcasts the first information.

Step 415: Send an RRC release message to the terminal.

The RRC release message includes a release reason, which indicates that the satellite has insufficient remaining storage capacity.

Step 416: The terminal releases the RRC connection and returns to the idle state.

In another embodiment, as shown in FIG5, this application provides an example of a communication processing method, which can be applied to a communication system, the communication system including at least a satellite and a terminal, wherein the satellite is in transparent transmission mode (i.e., normal working mode), the terminal does not support store-and-forward mode, and the initial state of the terminal is an idle state. The method specifically includes steps 501-509.

Step 501: Satellite broadcasts the second message.

The second information includes at least store-and-forward restriction indication information and/or satellite operating mode indication information; the store-and-forward restriction indication information is prohibited, and/or the operating mode indication information is normal operating mode.

Step 502: The terminal sends a connection establishment request message to the satellite.

Step 503: The satellite sends a connection establishment message to the terminal.

Step 504: The terminal sends a connection establishment completion message to the satellite and enters the connection state.

Step 505: The satellite sends a capability query request to the terminal.

Step 506: The terminal sends capability information to the satellite.

Among them, the capability information is used to indicate that the terminal does not support store-and-forward mode.

Step 507: After the satellite enters store-and-forward mode, it modifies the second information and rebroadcasts the second information.

Step 508: The satellite sends an RRC connection release message to the terminal.

The RRC release message includes a release reason, which indicates that store-and-forward is not supported.

Step 509: The terminal releases the RRC connection and returns to the IDLE state.

In another embodiment, as shown in FIG6, this application provides an example of a communication processing method. This method can be applied to a communication system that includes at least a satellite and a terminal. The satellite is in transparent transmission mode (i.e., normal operating mode), the terminal supports store-and-forward mode, and the initial state of the terminal is idle. Specific steps include:

Step 601: Satellite broadcasts the second message.

The second information includes at least store-and-forward restriction indication information, and/or satellite operating mode indication information, and/or operating mode switching time; the store-and-forward restriction indication information is prohibited, and/or the operating mode indication information is normal operating mode.

Step 602: The terminal sends a connection establishment request message to the satellite.

Step 603: The satellite sends a connection establishment message to the terminal.

Step 604: The terminal sends a connection establishment complete message to the satellite and enters the connection state.

Step 605: The satellite sends a capability query request to the terminal.

Step 606: The terminal sends capability information to the satellite.

Among them, the capability information is used to indicate that the terminal supports store-and-forward mode.

Step 607: After the satellite enters store-and-forward mode, it modifies the second information and rebroadcasts the second information.

Step 608: The satellite sends a second information modification instruction to the terminal.

Step 609: The satellite sends an RRC reconfiguration message to the terminal.

The RRC reconfiguration message includes first information, which includes working mode indication information that instructs the satellite to enter store-and-forward mode, as well as other store-and-forward related auxiliary parameters.

Step 610: The terminal starts the validity period timer, completes the RRC reconfiguration, and re-receives the second information, sending an RRC reconfiguration completion message to the satellite.

It should be understood that although the steps in the flowchart of Figure 2-6 are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in Figure 2-6 may include multiple steps or multiple stages, which are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

In one embodiment, as shown in FIG7, a communication processing device 700 is provided, the device being applied to a terminal, the device comprising:

The first acquisition module 710 is used to acquire first information transmitted by the satellite, the first information including at least working mode indication information and/or store-and-forward related auxiliary parameters;

The first processing module 720 is used to perform communication processing based on the first information.

In some embodiments, the store-and-forward related auxiliary parameters include the store-and-forward related auxiliary parameters of the currently serving satellite and/or the store-and-forward related auxiliary parameters of other satellites in the constellation to which the currently serving satellite belongs.

In one embodiment, the store-and-forward related auxiliary parameters of the currently serving satellite include at least one or more of the following: satellite identifier, store-and-forward identifier, storage capacity indication information, expected delivery time related parameters, next service time related parameters, and ephemeris information related parameters.

The store-and-forward related auxiliary parameters of other satellites in the constellation where the currently serving satellite is located include at least one or more of the following: satellite identifier, satellite ephemeris information, satellite start time, start time/start time list, duration/duration list, and start time/start time list and duration/duration list for each other satellite in its normal operating mode or when the feed link is unavailable.

In one embodiment, the operating mode indication information is used to identify the current operating mode of the satellite, which is selected from either store-and-forward mode or normal operating mode;

The satellite identifier is a satellite ID, which indicates the satellite associated with the store-and-forward related auxiliary information;

The store-and-forward identifier is used to identify the service type supported by the satellite. The store-and-forward identifier is pre-configured and/or issued by the core network equipment. The service type includes one or more of SMS, data, non-real-time voice, and custom services.

The storage capacity indication information includes the total capacity of the on-board storage units and/or the remaining storage capacity of the on-board storage units.

The expected delivery time related parameters include the expected delivery time, and/or the start time and/or a list of start times for the satellite to operate in the feed link available area, and/or the duration and/or a list of durations for the satellite to operate in the feed link available area. The feed link includes a direct feed link and/or an indirect feed link. The indirect feed link can be transmitted to other satellites in the satellite constellation that have feed links via inter-satellite communication.

The next service time related parameters reflect the earliest and/or latest time of returning response information or related downlink data, and/or the duration of the satellite's next service, and/or a list of service durations of other satellites in the satellite constellation to which the satellite belongs. It includes at least one or more of the following: the earliest and/or latest time of the satellite returning to the current area, and/or the service duration; the earliest and/or latest time of other satellites in the satellite constellation carrying related response information or downlink data returning to the area, and/or the service duration; and/or a list of service durations.

The ephemeris information parameters reflect the current satellite ephemeris information and/or the list of satellite ephemeris information of the current satellite constellation. Specific parameters include one or more of the following: relevant orbital parameters, radius, elevation angle parameters, orbital speed, and footprint parameters; the footprint parameters include longitude and/or latitude.

In one embodiment, the device further includes:

A first receiving module is configured to receive second information transmitted by the satellite, the second information including at least store-and-forward restriction indication information and/or the satellite's operating mode indication information.

In one embodiment, when the terminal supports store-and-forward mode and the second information also includes scheduling information of the first information, the first acquisition module 710 is specifically used for:

If the terminal does not have a valid version of the first information, or before the terminal RRC connection is established, restored, or rebuilt, or before the terminal performs EDT or uses PUR transmission, or the terminal is in RRC connection state and the validity timer has not been started, then the system message block broadcast by the satellite is obtained, and the system message block contains the first information.

In one embodiment, the first processing module 720 is specifically used for:

If the received second information contains the store-and-forward restriction indication information, and the store-and-forward restriction indication information indicates that it is not prohibited, or if the received second information contains the working mode indication information, then establish a communication connection with the satellite, restore the communication connection, or rebuild the communication connection.

If the received second information contains the store-and-forward restriction indication information and the store-and-forward restriction indication information indicates that it is prohibited, or if the received second information does not contain the store-and-forward restriction indication information, or does not contain the operating mode indication information and the received cellBarred or cellBarred-NTN indication is prohibited, then satellite cell reselection is performed.

In one embodiment, the first processing module 720 is further configured to:

Based on the first information, determine whether the service transmission conditions are met. If the service transmission conditions are met, then execute the step of establishing a communication connection with the satellite.

The service transmission conditions include at least one of the following: the store-and-forward identifier represents the service type that supports the target service corresponding to the data to be transmitted; the storage capacity indication information indicates that the capacity is greater than or equal to the amount of data to be transmitted; the data to be transmitted supports segmented transmission; the expected delivery time is shorter than the expected delivery time of the target service; and the next service time is shorter than the expected reception time of the return data of the target service.

In one embodiment, the first acquisition module 710 is specifically used for:

Receive the RRC reconfiguration message sent by the satellite, the RRC reconfiguration message containing first information.

In one embodiment, the device further includes:

The first startup module is used to start a validity period timer after receiving a reconfiguration message containing first information sent by the satellite, or after obtaining the first information sent by the satellite.

The second acquisition module is used to reacquire the first information sent by the satellite when the validity period timer reaches its set duration.

In one embodiment, the device further includes:

The first stop module is used to stop the current validity period timer after receiving the RRC reconfiguration message sent by the satellite.

In one embodiment, if the first information indicates that the satellite's storage capacity is insufficient, the device further includes:

The second receiving module is used to receive the RRC release message sent by the satellite; the RRC release message contains a release reason, which indicates that the satellite's remaining storage capacity is insufficient;

The first release module is used to release the RRC connection.

In one embodiment, the device further includes:

The third receiving module is used to receive the capability query request sent by the satellite;

The transmitting module is used to transmit the terminal's capability information to the satellite, the capability information including indication information indicating whether the terminal supports store-and-forward mode capability.

In one embodiment, when the capability information indicates that the terminal does not support store-and-forward mode, the apparatus further includes:

The fourth receiving module is used to receive the RRC release message sent by the satellite; the RRC release message contains a release reason, which indicates that the terminal does not support store-and-forward.

The second release module is used to release the RRC connection.

In one embodiment, the device further includes:

The fifth receiving module is used to receive the second information modification instruction sent by the satellite; the second information modification instruction is sent when the satellite's working mode is switched, and the switch includes switching from normal working mode to store-and-forward mode, or switching from store-and-forward mode to normal working mode.

The sixth receiving module is used to reacquire the second information transmitted by the satellite.

In one embodiment, when the terminal is in a connected state, the device further includes:

The second startup module is used to start the acquisition timer when the acquisition of the first information begins;

The second stop module is used to stop the acquisition timer if the first information is successfully acquired.

The second processing module is used to enter an idle state or re-establish a communication connection with the satellite after the acquisition timer has been reached if the first information is not successfully acquired.

In one embodiment, the second processing module is specifically used for:

If AS security is not activated and the terminal is not a terminal supporting RRC connection reconstruction for control plane CIoT EPS optimization, it enters an idle state.

If the AS security is activated, or if the terminal is a terminal that supports RRC connection reconstruction for control plane CIoT EPS optimization, then a communication connection is re-established with the satellite.

In one embodiment, as shown in FIG8, a communication processing device 800 is provided, the device being applied to a satellite, the device comprising:

The first sending module 810 is used to send first information to the terminal. The first information includes at least working mode indication information and/or store-and-forward related auxiliary parameters, which enables the terminal to perform communication processing based on the first information.

In some embodiments, the store-and-forward related auxiliary parameters include the store-and-forward related auxiliary parameters of the currently serving satellite and/or the store-and-forward related auxiliary parameters of other satellites in the constellation to which the currently serving satellite belongs.

In one embodiment, the store-and-forward related auxiliary parameters of the currently serving satellite include at least one or more of the following: satellite identifier, store-and-forward identifier, storage capacity indication information, expected delivery time related parameters, next service time related parameters, and ephemeris information related parameters.

The store-and-forward related auxiliary parameters for other satellites in the constellation to which the currently serving satellite belongs include at least one of the following for each other satellite: satellite identifier, satellite ephemeris information, satellite start time, start time/start time list, duration/duration list for satellite normal operating mode or feeder link availability, and start time/start time list/duration list for satellite store-and-forward operating mode or feeder link unavailable.

In one embodiment, the operating mode indication information is used to identify the current operating mode of the satellite, which is selected from either store-and-forward mode or normal operating mode;

The satellite identifier is a satellite ID, which indicates the satellite associated with the store-and-forward related auxiliary information;

The store-and-forward identifier is used to identify the service type supported by the satellite. The store-and-forward identifier is pre-configured and/or issued by the core network equipment. The service type includes one or more of SMS, data, non-real-time voice, and custom services.

The storage capacity indication information includes the total capacity of the on-board storage units and/or the remaining storage capacity of the on-board storage units.

The expected delivery time-related parameters include the expected delivery time, and/or the start time and/or a list of start times for the satellite to operate in the feed link available area, and/or the duration and/or a list of durations for the satellite to operate in the feed link available area. The feed link includes a direct feed link and/or an indirect feed link. The indirect feed link can be transmitted to other satellites in the satellite constellation that have feed links via inter-satellite communication.

The next service time related parameters reflect the earliest and/or latest time of returning response information or related downlink data, and/or the duration of the satellite's next service, and/or a list of service durations of other satellites in the satellite constellation to which the satellite belongs. It includes at least one or more of the following: the earliest and/or latest time of the satellite returning to the current area, and/or the service duration; the earliest and/or latest time of other satellites in the satellite constellation carrying related response information or downlink data returning to the area, and/or the service duration; and/or a list of service durations.

The ephemeris information parameters reflect the current satellite ephemeris information and/or the list of satellite ephemeris information of the current satellite constellation. Specific parameters include one or more of the following: relevant orbital parameters, radius, elevation angle parameters, orbital speed, and footprint parameters; the footprint parameters include longitude and/or latitude.

In one embodiment, the device further includes:

The second sending module is used to send second information to the terminal, the second information including at least store-and-forward restriction indication information, and/or satellite operating mode indication information, and/or operating mode switching time.

In one embodiment, when the satellite is in store-and-forward mode, the operating mode indication information is store-and-forward mode;

When the satellite is in normal operating mode, the operating mode indication information is normal operating mode.

In one embodiment, the second information further includes scheduling information of the first information, the scheduling information being used to instruct the terminal to acquire a system message block transmitted by the satellite, the system message block containing the first information; the first transmitting module 810 is specifically used for:

The broadcast contains a system message block that includes the first information.

In one embodiment, the first sending module 810 is specifically used for:

When the preset remaining storage capacity update condition is detected, the first information is modified;

The first message was broadcast after modification.

In one embodiment, the device further includes:

The acquisition module is used to reacquire the system message block containing the first information by paging a terminal that is in an idle state or an RRC inactive state.

In one embodiment, the first sending module 810 is further configured to:

When the terminal is in a connected state, an RRC reconfiguration message is sent to the terminal, the RRC reconfiguration message containing the modified first information.

In one embodiment, the preset remaining storage capacity update condition includes at least one or more of the following: the remaining storage capacity changes to a preset threshold or a preset update cycle is reached.

In one embodiment, the first sending module 810 is specifically used for:

When insufficient remaining storage capacity is detected, the first information is modified and the modified first information is broadcast.

Send an RRC release message to the terminal; the RRC release message contains a release reason, which indicates that the satellite has insufficient remaining storage capacity.

In one embodiment, the device further includes:

The third sending module is used to send a capability query request to the terminal;

A receiving module is used to receive capability information sent by the terminal, the capability information including indication information indicating whether the terminal supports store-and-forward mode capability.

In one embodiment, when the capability information indicates that the terminal does not support store-and-forward mode, the first sending module 810 is specifically used for:

When the satellite switches to store-and-forward mode, an RRC release message is sent to the terminal. The RRC release message contains a release reason, which indicates that the terminal does not support store-and-forward.

In one embodiment, when the capability information indicates that the terminal supports store-and-forward mode, the apparatus further includes:

The fourth sending module is used to send an RRC reconfiguration message to the terminal when the satellite working mode is switched. The RRC reconfiguration message contains first information. The working mode switch includes switching from normal working mode to store-and-forward mode, or switching from store-and-forward mode to normal working mode.

In one embodiment, the device further includes:

The broadcast module is used to modify the second information and broadcast the modified second information when the satellite operating mode is switched; the operating mode switch includes switching from normal operating mode to store-and-forward mode, or switching from store-and-forward mode to normal operating mode.

The fifth sending module is used to send a second information modification instruction to the terminal.

Specific limitations regarding the communication processing device can be found in the limitations of the communication processing method described above, and will not be repeated here. Each module in the aforementioned communication processing device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in hardware or independently of the processor in the computer device, or stored in software in the memory of the computer device, so that the processor can call and execute the operations corresponding to each module.

In one embodiment, a communication device is provided, as shown in FIG. 9. FIG. 9 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present invention. The terminal device 900 shown in FIG. 9 includes: at least one processor 901, a memory 902, at least one network interface 904, and a user interface 903. The various components in the terminal device 900 are coupled together through a bus system 905. It is understood that the bus system 905 is used to realize the connection and communication between these components. In addition to a data bus, the bus system 905 also includes a power bus, a control bus, and a status signal bus. However, for clarity, all buses are labeled as bus system 905 in FIG. 9. In addition, in this embodiment of the present invention, a transceiver 906 is also included. The transceiver may be multiple elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.

The user interface 903 may include a display, keyboard, or clicking device (e.g., mouse, trackball, touchpad, or touchscreen).

It is understood that the memory 902 in the embodiments of the present invention may be a volatile memory or a non-volatile memory, or may include volatile memory. Both non-volatile and non-volatile memory are included. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), which serves as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (Synchlink DRAM, SLDRAM), and direct memory bus RAM (DRRAM). The memory 902 of the systems and methods described in the embodiments of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.

In some implementations, memory 902 stores elements such as executable modules or data structures, or subsets thereof, or extended sets thereof: operating system 9021 and application program 9022.

The operating system 9021 includes various system programs, such as the framework layer, core library layer, and driver layer, used to implement various basic business functions and handle hardware-based tasks. The application program 9022 includes various applications, such as a media player and a browser, used to implement various application functions. The program implementing the method of this embodiment can be included in the application program 9022.

In this embodiment of the invention, by calling the program or instructions stored in the memory 902, specifically the program or instructions stored in the application program 9022, the receiver is used to obtain the first information transmitted by the satellite. The first information includes at least working mode indication information and/or store-and-forward related auxiliary parameters; the processor is used to perform communication processing based on the first information.

It is understood that the embodiments described in this invention can be implemented using hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described in this application, or combinations thereof.

For software implementation, the techniques described in the embodiments of the present invention can be implemented through modules (e.g., procedures, functions, etc.) that perform the functions described in the embodiments of the present invention. The software code can be stored in memory and executed by processor 901. The memory can be implemented in processor 901 or external to processor 901.

In one embodiment, FIG10 is a schematic diagram of the structure of a satellite provided in an embodiment of this application. The satellite may include a receiver 1001, a memory 1002, a processor 1003, at least one communication bus 1004, and a transmitter 1005. The communication bus 1004 is used to realize communication connections between components. The memory 1002 may include a high-speed RAM memory, and may also include non-volatile memory (NVM), such as at least one disk storage. The memory 1002 may store various programs for performing various processing functions and implementing the method steps of this embodiment. In this embodiment, the transmitter 1005 may be a radio frequency processing module or a baseband processing module in the satellite, and the receiver 1001 may also be a radio frequency processing module or a baseband processing module in the satellite. The transmitter 1005 and the receiver 1001 may be integrated together to form a transceiver. Both the transmitter 1005 and the receiver 1001 may be coupled to the processor 1003, and can perform receiving or transmitting actions under the instruction or control of the processor 1003.

In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the steps of the method described above.

In one embodiment, a computer program product includes a computer program that, when executed by a processor, implements the steps of the method described above.

Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the methods described above. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, or optical storage, etc. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic cache memory. Dynamic Random Access Memory (DRAM), etc.

The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims (41)

A communication processing method, applied to a terminal, the method comprising: Acquire first information transmitted by the satellite, the first information including at least working mode indication information and/or store-and-forward related auxiliary parameters; Communication processing is performed based on the first information. According to the method of claim 1, the store-and-forward related auxiliary parameters include the store-and-forward related auxiliary parameters of the currently serving satellite and/or the store-and-forward related auxiliary parameters of other satellites in the constellation to which the currently serving satellite belongs. According to the method of claim 2, the store-and-forward related auxiliary parameters of the currently serving satellite include at least one or more of the following: satellite identifier, store-and-forward identifier, storage capacity indication information, expected delivery time related parameters, next service time related parameters, and ephemeris information related parameters; The store-and-forward related auxiliary parameters of other satellites in the constellation where the currently serving satellite is located include at least one or more of the following: satellite identifier, satellite ephemeris information, satellite start time, start time/start time list, duration/duration list, and start time/start time list and duration/duration list for each other satellite in its normal operating mode or when the feed link is unavailable. According to the method of claim 3, the operating mode indication information is used to identify the current operating mode of the satellite, the current operating mode being selected from one of store-and-forward mode and normal operating mode; The satellite identifier is a satellite ID, which indicates the satellite associated with the store-and-forward auxiliary information; The store-and-forward identifier is used to identify the service type supported by the satellite. The store-and-forward identifier is pre-configured and/or issued by the core network equipment. The service type includes one or more of SMS, data, non-real-time voice, and custom services. The storage capacity indication information includes the total capacity of the on-board storage units and/or the remaining storage capacity of the on-board storage units. The expected delivery time-related parameters include the expected delivery time, and/or the start time and/or a list of start times for the satellite to operate in the feed link available area, and/or the duration and/or a list of durations for the satellite to operate in the feed link available area. The feed link includes a direct feed link and/or an indirect feed link. The indirect feed link is transmitted to other satellites in the satellite constellation that have feed links through inter-satellite communication. The next service time related parameters reflect the earliest and/or latest time of returning response information or related downlink data, and/or the duration of the satellite's next service, and/or a list of service durations of other satellites in the satellite constellation to which the satellite belongs. It includes at least one or more of the following: the earliest and/or latest time of the satellite returning to the current area, and/or the service duration; the earliest and/or latest time of other satellites in the satellite constellation carrying related response information or downlink data returning to the area, and/or the service duration; and/or a list of service durations. The ephemeris information parameters reflect the current satellite ephemeris information and/or the list of satellite ephemeris information of the current satellite constellation. Specific parameters include one or more of the following: relevant orbital parameters, radius, elevation angle parameters, orbital speed, and footprint parameters; the footprint parameters include longitude and/or latitude. According to claim 3 or 4, the method further includes, before acquiring the first information transmitted by the satellite: Receive second information transmitted by the satellite, the second information including at least store-and-forward restriction indication information, and/or satellite operating mode indication information, and/or operating mode switching time. According to the method of claim 5, when the terminal supports store-and-forward mode and the second information further includes the scheduling information of the first information, obtaining the first information transmitted by the satellite includes: If the terminal does not have a valid version of the first information, or before the establishment, restoration, or reconstruction of the terminal's Radio Resource Control (RRC) connection, or before the terminal performs advance data transmission (EDT) or uses uplink resources (PUR) for transmission, or if the terminal is in RRC connection state and the expiration timer has not been started, then the system message block broadcast by the satellite is acquired, and the system message block contains the first information. According to the method of claim 5 or 6, wherein the communication processing based on the first information includes: If the received second information contains the store-and-forward restriction indication information, and the store-and-forward restriction indication information indicates that it is not prohibited, or if the received second information contains operating mode indication information, then perform at least one of the following operations: execute a random access procedure; establish a communication connection with the satellite, or restore a communication connection, or rebuild a communication connection; If the received second information contains the store-forward restriction indication information and the store-forward restriction indication information indicates that it is prohibited, Alternatively, if the second information received does not contain the store-and-forward restriction indication information and the cellBarred or cellBarred-NTN indication is received as prohibited, or if it does not contain the working mode indication information and the cellBarred or cellBarred-NTN indication is received as prohibited, then satellite cell reselection will be performed. According to the method of claim 7, wherein the communication processing based on the first information further includes: Based on the first information, determine whether the service transmission conditions are met. If the service transmission conditions are met, then execute the step of establishing a communication connection with the satellite. The service transmission conditions include at least one of the following: the store-and-forward identifier represents the service type that supports the target service corresponding to the data to be transmitted; the storage capacity indication information indicates that the capacity is greater than or equal to the amount of data to be transmitted; the data to be transmitted supports segmented transmission; the expected delivery time is shorter than the expected delivery time of the target service; and the next service time is shorter than the expected reception time of the return data of the target service. According to the method of claim 1, wherein acquiring the first information transmitted by the satellite includes: Receive the RRC reconfiguration message sent by the satellite, the RRC reconfiguration message containing the first information. The method according to claim 1 or 9, wherein the method further comprises: Upon receiving the RRC reconfiguration message containing the first information sent by the satellite, or after obtaining the first information sent by the satellite, start the validity period timer; When the validity period timer expires, the first information transmitted by the satellite is reacquired. The method according to claim 10, wherein the method further comprises: Upon receiving the RRC reconfiguration message from the satellite, the current validity period timer is stopped. According to claim 9, if the first information indicates that the satellite's storage capacity is insufficient, the method further includes: Receive the RRC release message sent by the satellite; the RRC release message contains a release reason, which indicates that the satellite has insufficient remaining storage capacity; Release the RRC connection. The method according to claim 1, wherein the method further comprises: Receive the capability query request sent by the satellite; The terminal's capability information is sent to the satellite, the capability information including indication information indicating whether the terminal supports store-and-forward mode capability. According to the method of claim 13, when the capability information indicates that the terminal does not support store-and-forward mode, the method further includes: Receive the RRC release message sent by the satellite; the RRC release message contains a release reason, which indicates that the terminal does not support store-and-forward; Release the RRC connection. The method according to claim 5, wherein the method further comprises: Receive a second information modification instruction sent by the satellite; the second information modification instruction is sent when the satellite's operating mode changes, the change including switching from normal operating mode to store-and-forward mode, or switching from store-and-forward mode to normal operating mode; Reacquire the second information transmitted by the satellite. The method according to claim 5, wherein the method further comprises: If the received second information includes a working mode switching time, the terminal starts a switching time timer after receiving the second information, the switching time timer being obtained based on the working mode switching time; and When the switching timer expires, the second information transmitted by the satellite is reacquired. According to the method of claim 1, when the terminal is in a connected state, the method further includes: When the acquisition of the first information begins, the acquisition timer is started; If the first information is successfully obtained, the acquisition timer is stopped; If the first information is not successfully obtained, the system will enter an idle state or re-establish a communication connection with the satellite after the acquisition timer has elapsed for the specified duration. According to the method of claim 17, wherein entering an idle state or re-establishing a communication connection with the satellite includes include: If Access Stratum (AS) security is not activated and the terminal is not an Evolved Packet System (EPS) optimized terminal that supports RRC connection reconstruction for controlling the evolution of Cellular IoT (CIoT), it enters an idle state. If the AS security is activated, or if the terminal is a terminal that supports RRC connection reconstruction for control plane CIoT EPS optimization, then a communication connection is re-established with the satellite. A communication processing method, applied to a satellite, the method comprising: Send first information to the terminal, the first information including at least working mode indication information and/or store-and-forward related auxiliary parameters, for enabling the terminal to perform communication processing based on the first information. According to the method of claim 19, the store-and-forward related auxiliary parameters include the store-and-forward related auxiliary parameters of the currently serving satellite and/or the store-and-forward related auxiliary parameters of other satellites in the constellation to which the currently serving satellite belongs. According to the method of claim 20, the store-and-forward related auxiliary parameters of the currently serving satellite include at least one or more of the following: satellite identifier, store-and-forward identifier, storage capacity indication information, expected delivery time related parameters, next service time related parameters, and ephemeris information related parameters; The store-and-forward related auxiliary parameters of other satellites in the constellation where the currently serving satellite is located include at least one or more of the following: satellite identifier, satellite ephemeris information, satellite start time, start time/start time list, duration/duration list, and start time/start time list and duration/duration list for each other satellite in its normal operating mode or when the feed link is unavailable. According to the method of claim 21, the operating mode indication information is used to identify the current operating mode of the satellite, the current operating mode being selected from one of store-and-forward mode and normal operating mode; The satellite identifier is a satellite ID, which indicates the satellite associated with the store-and-forward auxiliary information; The store-and-forward identifier is used to identify the service type supported by the satellite. The store-and-forward identifier is pre-configured and/or issued by the core network equipment. The service type includes one or more of SMS, data, non-real-time voice, and custom services. The storage capacity indication information includes the total capacity of the on-board storage units and/or the remaining storage capacity of the on-board storage units. The expected delivery time-related parameters include the expected delivery time, and/or the start time and/or a list of start times for the satellite to operate in the feed link available area, and/or the duration and/or a list of durations for the satellite to operate in the feed link available area. The feed link includes a direct feed link and/or an indirect feed link. The indirect feed link is transmitted to other satellites in the satellite constellation that have feed links through inter-satellite communication. The next service time related parameters reflect the earliest and/or latest time of returning response information or related downlink data, and/or the duration of the satellite's next service, and/or a list of service durations of other satellites in the satellite constellation to which the satellite belongs. It includes at least one or more of the following: the earliest and/or latest time of the satellite returning to the current area, and/or the service duration; the earliest and/or latest time of other satellites in the satellite constellation carrying related response information or downlink data returning to the area, and/or the service duration; and/or a list of service durations. The ephemeris information parameters reflect the current satellite ephemeris information and/or the list of satellite ephemeris information of the current satellite constellation. Specific parameters include one or more of the following: relevant orbital parameters, radius, elevation angle parameters, orbital speed, and footprint parameters; the footprint parameters include longitude and/or latitude. The method according to claim 21, wherein the method further comprises: Send a second message to the terminal, the second message including at least store-and-forward restriction indication information, and/or satellite operating mode indication information, and/or operating mode switching time. According to the method of claim 23, when the satellite is in store-and-forward mode, the operating mode indication information is store-and-forward mode; When the satellite is in normal operating mode, the operating mode indication information is normal operating mode. According to the method of claim 23 or 24, the second information further includes scheduling information of the first information, the scheduling information being used to instruct the terminal to acquire a system message block transmitted by the satellite, the system message block containing the first information; the step of sending the first information to the terminal includes: The broadcast contains a system message block that includes the first information. According to the method of claim 19, wherein sending the first information to the terminal includes: When the preset remaining storage capacity update condition is detected, the first information is modified; The first message was broadcast after modification. The method according to claim 26, wherein the method further comprises: The system message block containing the first information is re-acquired by paging a terminal that is in an idle state or an RRC inactive state. According to the method of claim 26, the step of sending the first information to the terminal further includes: When the terminal is in a connected state, an RRC reconfiguration message is sent to the terminal, the RRC reconfiguration message containing the modified first information. According to the method of claim 26, the preset remaining storage capacity update condition includes at least one or more of the following: the remaining storage capacity changes to a preset threshold or a preset update cycle is reached. According to the method of claim 19, wherein sending the first information to the terminal includes: When insufficient remaining storage capacity is detected, the first information is modified and the modified first information is broadcast. Send an RRC release message to the terminal; the RRC release message contains a release reason, which indicates that the satellite has insufficient remaining storage capacity. The method according to claim 19, wherein the method further comprises: Send a capability query request to the terminal; The terminal receives capability information, which includes indications indicating whether the terminal supports store-and-forward mode capability. According to the method of claim 31, when the capability information indicates that the terminal does not support store-and-forward mode, sending the first information to the terminal includes: When the satellite switches to store-and-forward mode, an RRC release message is sent to the terminal. The RRC release message contains a release reason, which indicates that the terminal does not support store-and-forward. According to the method of claim 31, when the capability information indicates that the terminal supports store-and-forward mode, the method further includes: When the satellite operating mode is switched, an RRC reconfiguration message is sent to the terminal. The RRC reconfiguration message contains first information. The operating mode switch includes switching from normal operating mode to store-and-forward mode, or switching from store-and-forward mode to normal operating mode. The method according to claim 23, wherein the method further comprises: When the satellite's operating mode changes, the second information is modified and the modified second information is broadcast; the operating mode change includes switching from normal operating mode to store-and-forward mode, or switching from store-and-forward mode to normal operating mode. Send a second information modification instruction to the terminal. A wireless communication system, the system comprising a satellite and a terminal; The satellite is used to send first information to the terminal, the first information including at least working mode indication information and/or store-and-forward related auxiliary parameters; The terminal is used to acquire the first information transmitted by the satellite; The terminal is also used for communication processing based on the first information. A communication processing apparatus, applied to a terminal, the apparatus comprising: The first acquisition module is used to acquire first information transmitted by the satellite, the first information including at least working mode indication information and/or store-and-forward related auxiliary parameters; The first processing module is used to perform communication processing based on the first information. A communication processing apparatus, applied to a satellite, the apparatus comprising: A first sending module is configured to send first information to a terminal, the first information including at least working mode indication information and/or store-and-forward related auxiliary parameters, for enabling the terminal to perform communication processing based on the first information. A communication device includes: a receiver and a processor; The receiver is used to acquire first information transmitted by the satellite, the first information including at least working mode indication information and/or store-and-forward related auxiliary parameters; The processor is used to perform communication processing based on the first information. A communication device, comprising: a transmitter; The transmitter is used to send first information to the terminal, the first information including at least working mode indication information and/or store-and-forward related auxiliary parameters, for enabling the terminal to perform communication processing based on the first information. A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method of any one of claims 1 to 18, or claims 19 to 34. A computer program product comprising a computer program that, when executed by a processor, implements the steps of the method according to any one of claims 1 to 18, or claims 19 to 34.