CN120321774A - Wireless communication method, device, equipment and readable storage medium - Google Patents

Abstract

The present application discloses a wireless communication method, apparatus, device and readable storage medium, which belongs to the field of communications. The method of an embodiment of the present application includes: a core network element receives first information from a non-ground base station, and the first information is used to indicate at least one of the following: information related to the base station type of the non-ground base station; information related to the tracking area to be covered by the non-ground base station in the future.

Description

Wireless communication method, device, equipment and readable storage medium

Technical Field

The application belongs to the technical field of communication, and particularly relates to a wireless communication method, a wireless communication device, wireless communication equipment and a readable storage medium.

Background

In the related art, for example, in a ground network, both a base station and a core network element are deployed on the ground, so that a public land mobile network (Public Land Mobile Network, PLMN) provided by the core network element and tracking area information supported by the base station, etc. do not change. However, in a Non-terrestrial network (Non-TERRESTRIAL NETWORKS, NTN) communication system, the base station may have a mobility characteristic, so tracking area information supported by the base station may change along with the movement of the base station, in this case, using old tracking area information may affect normal operation of an interface between the base station and a core network node, for example, the core network element issues a paging message, so how to improve paging performance of a terminal is a problem to be solved.

Disclosure of Invention

The embodiment of the application provides a wireless communication method, a wireless communication device, wireless communication equipment and a readable storage medium, which can improve the paging performance of a terminal.

In a first aspect, a wireless communication method is provided, the method comprising:

the core network element receives first information from a non-terrestrial base station, the first information being used to indicate at least one of:

Base station type related information of the non-ground base station;

And tracking area related information of future coverage of the non-ground base station.

In a second aspect, there is provided a wireless communication method comprising:

The non-ground base station sends first information to a core network element, wherein the first information is used for indicating at least one of the following:

Base station type related information of the non-ground base station;

And tracking area related information of future coverage of the non-ground base station.

In a third aspect, there is provided a wireless communication apparatus comprising:

A receiving unit configured to receive first information from a non-terrestrial base station, the first information being used to indicate at least one of:

Base station type related information of the non-ground base station;

And tracking area related information of future coverage of the non-ground base station.

In a fourth aspect, there is provided a wireless communication apparatus comprising:

A sending unit, configured to send first information to a core network element, where the first information is used to indicate at least one of the following:

base station type related information of the wireless communication device;

Tracking area related information for future coverage by the wireless communication device.

In a fifth aspect, there is provided a communication device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.

In a sixth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect or performs the steps of the method according to the second aspect.

In a seventh aspect, a wireless communication system is provided, comprising a core network element operable to perform the steps of the method according to the first aspect and a non-terrestrial base station operable to perform the steps of the method according to the second aspect.

In an eighth aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being for running a program or instructions to implement the method according to the first aspect or to implement the method according to the second aspect.

In a ninth aspect, there is provided a computer program/program product stored in a storage medium, the program/program product being executable by at least one processor to implement the steps of the wireless communication method as described in the first aspect or the steps of the wireless communication method as described in the second aspect.

In the embodiment of the application, the non-ground base station can indicate the base station type related information of the non-ground base station and/or the tracking area related information of the future coverage of the non-ground base station to the core network element, so that the core network element can acquire the base station type and/or the tracking area of the future coverage of the non-ground base station, and further, the core network element can page the terminal according to the base station type and/or the tracking area of the future coverage of the ground base station, thereby being beneficial to improving the paging performance of the terminal.

Drawings

Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application.

Fig. 2 is a data or signaling interaction diagram in an NTN communication system.

Fig. 3 is a schematic diagram of a store and forward communication mode.

Fig. 4 is a typical NTN deployment scenario diagram.

Fig. 5 is a schematic diagram of the setup procedure of the NG interface.

Fig. 6 is a schematic diagram of a wireless communication method according to an embodiment of the present application.

Fig. 7 is a schematic diagram of another wireless communication method provided by an embodiment of the present application.

Fig. 8 is a schematic diagram of yet another wireless communication method provided by an embodiment of the present application.

Fig. 9 is a schematic diagram of a wireless communication device according to an embodiment of the present application.

Fig. 10 is a schematic diagram of another wireless communication device provided by an embodiment of the present application.

Fig. 11 is a schematic diagram of a communication device provided in an embodiment of the present application.

Fig. 12 is a hardware configuration diagram of a network side device according to an embodiment of the present application.

Fig. 13 is a hardware configuration diagram of another network side device according to an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.

The terms "first," "second," and the like, herein, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, the "or" in the present application means at least one of the connected objects. For example, "A or B" encompasses three schemes, namely scheme one including A and excluding B, scheme two including B and excluding A, scheme three including both A and B. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The term "indication" according to the application may be either a direct indication (or an explicit indication) or an indirect indication (or an implicit indication). The direct indication may be understood that the sender explicitly informs the specific information of the receiver, the operation to be executed, the request result, and the like in the sent indication, and the indirect indication may be understood that the receiver determines the corresponding information according to the indication sent by the sender, or determines the operation to be executed, the request result, and the like according to the determination result.

It should be noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single-carrier frequency division multiple access (Single-carrier Frequency-Division Multiple Access, SC-FDMA), or other systems. The terms "system" and "network" in embodiments of the application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New Radio (NR) system for exemplary purposes and NR terminology is used in much of the following description, but the techniques may also be applied to systems other than NR systems, such as the 6 th Generation (6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a Mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer), a notebook, a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a palm Computer, a netbook, an Ultra-Mobile Personal Computer (Ultra-Mobile Personal Computer, UMPC), a Mobile internet appliance (Mobile INTERNET DEVICE, MID), an augmented Reality (Augmented Reality, AR), a Virtual Reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (FLIGHT VEHICLE), a vehicle-mounted device (Vehicle User Equipment, VUE), a ship-mounted device, a pedestrian terminal (PEDESTRIAN USER EQUIPMENT, PUE), a smart home (home device with a wireless communication function, such as a refrigerator, a television, a washing machine, or furniture), a game machine, a Personal Computer (Personal Computer, PC), a teller machine, or a self-service machine, and other terminal-side devices. The wearable device comprises an intelligent watch, an intelligent bracelet, an intelligent earphone, intelligent glasses, intelligent jewelry (intelligent bracelets, intelligent rings, intelligent necklaces, intelligent anklets, intelligent footchains and the like), an intelligent wristband, intelligent clothing and the like. The in-vehicle apparatus may also be referred to as an in-vehicle terminal, an in-vehicle controller, an in-vehicle module, an in-vehicle component, an in-vehicle chip, an in-vehicle unit, or the like. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application.

A terminal may also be called a User Equipment (UE), a terminal device, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, a User device, or the like.

The network-side device 12 may include an access network device or core network device, where the access network device may also be referred to as a radio access network (Radio Access Network, RAN) device, a radio access network function, or a radio access network element. The Access network device may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) Access Point (AS), or a wireless fidelity (WIRELESS FIDELITY, WIFI) node, etc. The base station may be referred to as a Node B (NB, NB), an Evolved Node B (eNB), a next generation Node B (the next generation Node B, gNB), a New air Node B (New Radio Node B, NR Node B), an access point, a relay station (Relay Base Station, RBS), a serving base station (Serving Base Station, SBS), a base transceiver station (Base Transceiver Station, BTS), a Radio base station, a Radio transceiver, a Basic service set (Basic SERVICE SET, BSS), an Extended service set (Extended SERVICE SET, ESS), a Home Node B (HNB), a home Evolved Node B (home Evolved Node B), a transmission and reception point (Transmission Reception Point, TRP), or some other suitable term in the field, so long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary, and in the embodiment of the present application, the base station in the NR system is described only as an example, and the specific type of the base station is not limited.

In some embodiments of the application, the access network device may be a satellite, a balloon station. For example, the satellite may be a Low Earth Orbit (LEO) satellite, a medium earth Orbit (medium earth Orbit, MEO) satellite, a geosynchronous Orbit (geostationary earth Orbit, GEO) satellite, a high elliptical Orbit (HIGH ELLIPTICAL Orbit, HEO) satellite, or the like. In some embodiments of the present application, the network device may also be a base station disposed on land, in a water area, or the like.

In some embodiments of the present application, the core network device may be referred to as a core network node, a core network element, a core network Function, including, but not limited to, at least one of a Mobility management entity (Mobility MANAGEMENT ENTITY, MME), an access Mobility management Function (ACCESS AND Mobility Management Function, AMF), a session management Function (Session Management Function, SMF), a user plane Function (User Plane Function, UPF), a Policy control Function (Policy Control Function, PCF), a Policy and charging Rules Function (Policy AND CHARGING Rules Function, PCRF), an edge application service discovery Function (Edge Application Server Discovery Function, EASDF), a Unified data management (Unified DATA MANAGEMENT, UDM), a Unified data repository (Unified Data Repository, UDR), a home subscriber server (Home Subscriber Server, HSS), a centralized network configuration (Centralized network configuration, CNC), a network storage Function (Network Repository Function, NRF), a network opening Function (Network Exposure Function, NEF), a Local NEF (Local NEF, or L-NEF), a binding support Function (Binding Support Function, BSF), an application Function (Application Function, AF), and the like. It should be noted that, in the embodiment of the present application, only the core network device in the NR system is described as an example, and the specific type of the core network device is not limited.

To facilitate an understanding of embodiments of the present application, a Non-terrestrial network (Non-TERRESTRIAL NETWORKS, NTN) is described.

The NTN communication system comprises an NTN communication system based on a transparent load (TRANSPARENT PAYLOAD) and an NTN communication system based on a regeneration load (REGENERATIVE PAYLOAD). In some scenarios, only NTN communication systems based on transparent loads are considered. In the deployment environment, the terminal, the base station and the core network equipment are all deployed on the ground, and communication data between the terminal and the network equipment is transferred through an aerial satellite. In this system, satellites are only used to forward data between the base station and the terminal, and do not decode and process the data. For NTN communication systems based on regenerative loading, satellites have some or all of the base station functionality to decode and process upstream or downstream data. For example, if the satellite is fully functional in the access network, the access network device may be referred to as an on-board access network device or an on-board base station device. Popular terms may also be referred to as base station staring. In this case, a Central Unit (CU) function of the access network is called a CU of the on-board access network, and a Distributed Unit (DU) function of the access network is called a Distributed Unit (DU) of the on-board access network. If the satellite is provided with the central unit CU function of the access network, the central unit CU of the access network may be referred to as an on-board CU of the access network device. Popular terms may also be referred to as staring on a CU. If the satellite is provided with the access network's DU functionality, the access network's DU may be referred to as an access network device's on-board DU. Popular terms may also be referred to as staring on DUs.

In NTN communication systems, to implement data or signaling interaction between a terminal and a terrestrial network, it is necessary to ensure that a service link and a feeder link can be simultaneously maintained in connection, as shown in fig. 2. In some cases, however, such as early in the deployment of satellite networks, there is no guarantee that both the service link and the feeder link remain connected. To support data transmission (e.g., delay tolerant traffic data), a store-and-forward (Store and forward, S & F) communication mode is proposed, as shown in fig. 3. For example, when the terminal needs to transmit uplink data, the uplink data may be transmitted to the satellite (step a in fig. 3) through the service link, and the satellite stores the relevant data. When the satellite is operating on the feeder link, the stored data is forwarded to the ground network (as in step B of fig. 3). Similarly, when there is downlink data to be transmitted to the terminal, the ground network first transmits the data to the satellite, which stores the relevant downlink data. When the satellite is operating on the service link, the stored data is forwarded to the terminal.

Fig. 4 shows a typical NTN deployment scenario, where the link between the UE and the satellite is referred to as the service link (SERVICE LINK) and the link between the satellite and the terrestrial gateway is referred to as the feeder link (FEEDER LINK). In some scenarios (e.g., low orbit satellite LEO), a handoff of SERVICE LINK and/or FEEDER LINK may occur due to satellite movement. For SERVICE LINK handover, the serving satellites for all UEs within the cell need to be handed over from one satellite to another. For FEEDER LINK handoff, a satellite needs to be handed off from one terrestrial gateway to another.

To facilitate understanding of embodiments of the present application, S1/Next Generation (NG) interface management is described.

In the LTE communication system, an interface between the base station and the core network element is an S1 interface, and in the NR communication system, an interface between the base station and the core network element is an NG interface. The S1 interface and the NG interface comprise a control plane interface S1-C/NG-C and a user plane interface S1-U/NG-U. The user plane interface S1-U/NG-U is connected with a core network user plane element such as a service gateway (SERVING GATEWAY, S-GW) or UPF for transmitting service data. The control plane interface S1-C/NG-CS1 is connected with the core network control plane network element MME/AMF and is used for transmitting control plane information. The management of the S1 interface and the management of the NG interface are similar, and the management flow of the NG interface will be described below by taking NR as an example. Including for example the setup procedure and the reset procedure of the NG interface.

Fig. 5 illustrates an NG interface setup procedure (NG setup procedure), as shown in fig. 5, NG setup procedure is initiated by the base station, e.g., in S301, the base station may send an NG setup request (NG setup request) message to the AMF, if the AMF agrees to setup, in S302, the AMF replies to the NG setup response (NG setup response) message, if the AMF fails to receive an accept the NG setup request, and reply to the NG setup failure (NG setup failure) message.

In the related art, the base station and the core network element are both fixedly disposed on the ground, so that the public land mobile network (Public Land Mobile Network, PLMN) supported by the base station and the tracking area information and the like do not change during the establishment of the interface between the base station and the core network element.

However, under the store and forward (Store and Forward, S & F) mechanism, the tracking area managed by non-terrestrial base stations (e.g., dangers) may change with their own movement, and in some cases, feeder links may not be available, so how to ensure normal operation between the base stations and the core network elements is a problem to be solved.

The wireless communication method provided by the embodiment of the application is described in detail below through some embodiments and application scenarios thereof with reference to the accompanying drawings.

Fig. 6 is a schematic diagram of a wireless communication method according to an embodiment of the present application. As shown in fig. 6, the method 400 includes at least some of the following:

S401, a non-ground base station sends first information to a core network element;

Correspondingly, the core network element receives first information from a non-ground base station;

wherein the first information is used to indicate at least one of:

Base station type related information of the non-ground base station;

and the non-ground base station is used for covering the tracking area related information at preset time.

In some embodiments, the core network element may include, for example, but is not limited to, at least one of:

A Mobility management entity (Mobility MANAGEMENT ENTITY, MME), an access Mobility management Function (ACCESS AND Mobility Management Function, AMF), a session management Function (Session Management Function, SMF), a user plane Function (User Plane Function, UPF), a Policy control Function (Policy Control Function, PCF), a Policy and Charging Rules Function (PCRF), an edge application service discovery Function (Edge Application Server Discovery Function, EASDF), unified data management (Unified DATA MANAGEMENT, UDM), unified data repository (Unified Data Repository, UDR), a home subscriber server (Home Subscriber Server, HSS), a centralized network configuration (Centralized network configuration, CNC), a network storage Function (Network Repository Function, NRF), a network opening Function (Network Exposure Function, NEF), a Local NEF (or L-NEF), a binding support Function (Binding Support Function, BSF), an application Function (Application Function, AF), and the like.

In some embodiments, the non-terrestrial base station may be a base station deployed with an on-board or off-board tool. The satellite vehicles may include, but are not limited to, satellites, for example, satellites may include, but are not limited to, low Earth Orbit (LEO) satellites, medium earth Orbit (medium earth Orbit, MEO) satellites, geosynchronous Orbit (Geostationary Earth Orbit, GEO) satellites, high elliptical Orbit (HIGH ELLIPTICAL Orbit, HEO) satellites, and the like. The on-board tool includes, for example, an aerial platform (High Altitude Platform, HAP), including, for example, but not limited to, an Unmanned AERIAL VEHICLE, UAV (un-manied) system.

In the embodiment of the application, the base station or satellite-borne base station deployed by using a satellite-borne tool is utilized.

In some embodiments, the base station type classification may be based on the capabilities of non-terrestrial base stations and/or the height of the travel track.

Optionally, the capability of the non-terrestrial base station includes, for example, but is not limited to, whether the non-terrestrial base station supports store and forward (S & F), whether the non-terrestrial base station supports processing uplink and downlink data, such as whether a regenerative load function is supported.

Alternatively, the elevation of the travel rail of the non-ground base station may include, but is not limited to, at least one of a high rail, a medium rail, a low rail.

Exemplary base station types for non-terrestrial base stations include, but are not limited to, at least one of:

A regeneration load (REGENERATIVE PAYLOAD) type;

Store and forward (S & F) types;

A high track regenerative load type;

medium track regenerative load type;

low track regenerative load type;

high track store and forward type;

Middle track store and forward type;

low track store and forward type.

Optionally, in an NB-IOT (Narrow Band Internet of Things, NB-IOT, narrowband internet of things) communication system, the base station types of the non-terrestrial base stations include, but are not limited to, at least one of:

NB-IOT regeneration load (REGENERATIVE PAYLOAD) type;

NB-IOT store and forward (S & F) types;

NB-IOT high track regenerative load type;

Track regeneration load type in NB-IOT;

NB-IOT low track regenerative load type;

NB-IOT high-orbit store and forward types;

track store and forward type in NB-IOT;

NB-IOT low-track store and forward type

In some embodiments, the S & F type base station supports storing and forwarding of received messages.

For example, the S & F type base station may store a message received from the terminal to be sent to the core network element in case a feeder link between the base station and the core network element is not available, and forward the message to the core network element in case the feeder link is available.

It should be noted that, in the embodiment of the present application, the feeder link may be understood or replaced by a feeder line, where the feeder link will not be available may be understood or replaced by the feeder link being about to be unavailable, the feeder link will be disconnected, the feeder link will be switched, or the feeder link will be switched, etc.

Alternatively, the determination of the point in time when the feeder link between the non-terrestrial base station and the core network element is not available may be set according to actual needs, e.g. in some embodiments it may be defined that the feeder link is assumed or considered to be unavailable when the satellite moves to a specific location. In one implementation, a point in time when the feeder link is not available may be determined based on information such as the trajectory and speed of the satellite movement, and then based on this point in time the feeder link may be deemed to be unavailable at a preset time prior to this point in time. In another implementation, current position information for the satellite may be obtained, assuming that the feeder link will not be available when the satellite moves to a location that is some position prior to the particular location.

Alternatively, the determination of the point in time at which the feeder link between the base station and the core network element is available may be set according to actual needs. The specific setting method may be the same as or similar to the above-described unavailable determination method. And will not be described in detail herein or later.

In some embodiments, the S & F type base station may refer to a base station supporting a regenerative load type of S & F.

It should be understood that the above description is given only for the example of dividing the operation track of the non-ground base station into the high track, the middle track and the low track, but the present application is not limited thereto, and in other embodiments, the operation track of the non-ground base station may be divided into more levels, for example, four levels (the geosynchronous track, the high track, the middle track and the low track), or fewer levels, for example, two levels, for example, the high track and the low track, which the present application is not limited to.

It should be understood that, in the embodiment of the present application, the sending timing of the first information is not limited, for example, the non-terrestrial base station may send the first information in an interface setup process or a reset process between the non-terrestrial base station and the core network element, which is favorable for ensuring normal operation of the interface that is setup or reset, or may indicate, to the core network element, the base station type of the non-terrestrial base station and/or tracking area related information that is covered by the non-terrestrial base station at a preset time in an access network configuration update process, or may send the first information in a data transmission process between the non-terrestrial base station and the core network element, and so on.

In some implementations of the application, S401 may include at least one of:

the non-ground base station sends an interface establishment request message to a core network element, wherein the interface establishment request message comprises the first information. The non-ground base station can indicate the base station type of the non-ground base station and/or the tracking area related information covered by the non-ground base station at preset time to the core network element through an interface establishment request message;

The non-ground base station sends an access network configuration update message to a core network element, wherein the access network configuration update message comprises the first information. That is, the non-terrestrial base station may indicate to the core network element during the access network configuration update procedure the base station type of the non-terrestrial base station and/or tracking area related information of the non-terrestrial base station at a preset time.

For example, in the NR system, the interface setup request message may be an NG setup request message, or in the LTE system, the interface setup request message may be an S1 setup request message.

In some embodiments of the application, the method 400 further comprises at least one of:

The core network element sends second information to the non-ground base station, wherein the second information is used for indicating that the core network element supports storage and forwarding, or the core network element has S & F capability;

And the core network element sends an access network configuration update confirmation message to the non-ground base station, wherein the access network configuration update confirmation message comprises the second information.

In this way, when the core network element needs to send a message to the non-ground base station, but the feeder link between the non-ground base station and the core network element is unavailable, the core network element may store the message to be sent to the non-ground base station first, and send the message to the non-ground base station when the feeder link is available.

In some implementations, the core network element sending second information to the non-terrestrial base station includes:

And the core network element sends an interface establishment response message to the non-ground base station, wherein the interface establishment response message comprises the second information. That is, the core network element may indicate to the non-terrestrial base station in the interface setup response message that the core network element supports store and forward.

In some embodiments, the interface setup response message may be NG setup response message or an S1 setup response message.

In some embodiments, the first information includes at least one of the following information:

the first indication information is used for indicating the base station type of the non-ground base station, for example, the first indication information can be base station type related information of the non-ground base station;

And the second indication information is used for indicating the tracking area related information of future coverage of the non-ground base station.

It should be noted that, the term "future" is understood to mean a period of time after the non-ground base station provides the first information to the core network element, and the duration of the period of time is not limited. Since the non-terrestrial base stations may be on-board devices (satellites) and the on-board devices may be periodically moving, the "future coverage" herein may correspond to satellite coverage within this period or satellite re-coverage after 1 or more periods have elapsed. For example, when the base station establishes an interface with the core network element, the base station has not covered the tracking area 1 indicated by the tracking area information, and then (e.g., undergoes one or more cycles or within one cycle) satellite operation covers the tracking area 1.

Hereinafter, a specific implementation of the first indication information and the second indication information will be described in connection with specific embodiments.

In some embodiments, the first indication information implicitly indicates a base station type of the non-terrestrial base station.

For example, the first indication information is used to indicate a base station Identity (Identity, ID) of the non-terrestrial base station, and the base station Identity is used to implicitly indicate a base station type of the non-terrestrial base station.

In some implementations, the base station identifier and the base station type have a mapping relationship, so that the core network element can acquire the base station type of the non-terrestrial base station according to the base station identifier and the mapping relationship.

In some embodiments, the core network element is configured with or stores a mapping relationship of the base station identity and the base station type. The mapping relationship is predefined, for example, or may be configured to the core network element by operation and maintenance management (Operation Administration AND MAINTENANCE, OAM).

In other embodiments, the first indication information may explicitly indicate the base station type of the non-terrestrial base station, e.g., the first indication information may directly indicate the base station type of the non-terrestrial base station.

For example, the first indication information is used to indicate that the base station type of the non-ground base station is one of the following:

A regeneration load (REGENERATIVE PAYLOAD) type;

Store and forward (S & F) types;

A high track regenerative load type;

medium track regenerative load type;

low track regenerative load type;

high track store and forward type;

Middle track store and forward type;

low track store and forward type.

In some embodiments, when the first indication information indicates that the base station type of the non-terrestrial base station is a regenerative load type, it indicates that the non-terrestrial base station is a non-terrestrial base station based on a regenerative load, such as an on-board base station based on a regenerative load.

In some embodiments, when the first indication information indicates that the base station type of the non-terrestrial base station is S & F type, it indicates that the non-terrestrial base station is a S & F capable non-terrestrial base station, such as an S & F capable on-board base station.

In some embodiments, when the first indication information indicates that the base station type of the non-terrestrial base station is a high track regenerative load type, it indicates that the non-terrestrial base station is a non-terrestrial base station based on a high track regenerative load, such as an on-board base station based on a high track regenerative load.

In some embodiments, when the first indication information indicates that the base station type of the non-terrestrial base station is a medium track regenerative load type, it indicates that the non-terrestrial base station is a non-terrestrial base station based on a medium track regenerative load, for example, an on-board base station based on a medium track regenerative load.

In some embodiments, when the first indication information indicates that the base station type of the non-terrestrial base station is a low track regenerative load type, it indicates that the non-terrestrial base station is a non-terrestrial base station based on a low track regenerative load, such as an on-board base station based on a low track regenerative load.

In some embodiments, when the first indication information indicates that the base station type of the non-terrestrial base station is a high orbit S & F type, it indicates that the non-terrestrial base station is a high orbit and S & F capable non-terrestrial base station, such as a high orbit and S & F capable on-board base station.

In some embodiments, when the first indication information indicates that the base station type of the non-terrestrial base station is a mid-track S & F type, it is indicated that the non-terrestrial base station is a mid-track based and S & F capable non-terrestrial base station, such as a mid-track based and S & F capable on-board base station.

In some embodiments, when the first indication information indicates that the base station type of the non-terrestrial base station is a low track S & F type, it indicates that the non-terrestrial base station is a low track and S & F capable non-terrestrial base station, such as a low track and S & F capable on-board base station.

In some embodiments, the first indication information may be N bits, where N is a positive integer, and different values of the N bits are used to indicate different base station types.

Alternatively, the number of bits occupied by the first indication information may be determined according to the total number of base station types that need to be indicated.

For example, if two types of base stations (e.g., a regenerative load type, an S & F type) need to be indicated, the first indication information may be 1 bit, or if 8 types of base stations need to be indicated, the first indication information may be 3 bits.

Optionally, the first indication information may include a first indication bit and/or a second indication bit, where the first indication bit is used to indicate whether the non-terrestrial base station is of a regenerative load type or a store and forward type, and the second indication bit is used to indicate whether the non-terrestrial base station is of a high track, a middle track or a low track.

Alternatively, the first indication bit may be 1 bit and the second indication bit may be 2 bits.

In some embodiments, the first indication information may also be used to indicate whether the base station type of the non-terrestrial base station is an S & F type. Whether the non-terrestrial base station is of the S & F type is indicated, for example, by 1 bit. Illustratively, a value of 1 indicates an S & F type and a value of 0 indicates a type other than S & F. In another embodiment, the non-terrestrial base station indicates that the non-terrestrial base station is of the S & F type when the non-terrestrial base station provides the 1-bit indication to the core network element (e.g., AMF, or MME), and indicates that the non-terrestrial base station is not of the S & F type when the non-terrestrial base station does not provide the 1-bit indication to the core network element (e.g., AMF, or MME).

In some embodiments, the tracking area related information of future coverage of the non-terrestrial base station may be understood as tracking area related information of future management of the non-terrestrial base station, or tracking area related information of future support of the non-terrestrial base station.

In some embodiments, the tracking area related information for future coverage by the non-terrestrial base station may include tracking area related information for coverage by the non-terrestrial base station at a preset time or at a specific time. For example, during the preset time, if the terminal is in the tracking area, the non-terrestrial terminal may support paging the terminal.

In some embodiments, the preset time may include at least one point in time, or at least one period of time. The point in time or time period may be a future point in time or time period, or alternatively, a point in time or time period after the current time.

For example, the non-terrestrial base station is periodically operated, and the preset time may include at least one point in time within an operating period, or at least one period of time within an operating period.

Therefore, the non-ground base station can know the tracking area covered by the non-ground base station in the future through indicating the related information of the tracking area covered by the non-ground base station in the future, and further, a proper non-ground base station can be selected to page the terminal according to the tracking area covered by the non-ground base station in the future, so that the normal communication of the terminal is guaranteed.

In some implementations, the tracking area related information of the future (e.g., preset time or specific time) coverage of the non-terrestrial base station includes at least one tracking area information of the future (e.g., preset time or specific time) coverage of the non-terrestrial base station, e.g., the tracking area information includes at least one of a tracking area Code (TRACKING AREA Code, TAC), a tracking area identification (TRACKING AREA IDENTITY, TAI), and a PLMN identification (PLMN IDENTITY).

In some implementations, the tracking area related information for future coverage (e.g., a preset time or a specific time) of the non-terrestrial base station further includes time information associated with the at least one tracking area information. The time information associated with the tracking area information may be a time stamp or may be a time period, for example, the time stamp may be a start time of coverage of the tracking area by the non-terrestrial base station, and the time period may include a start time and an end time of coverage of the tracking area by the non-terrestrial base station.

Alternatively, the time stamp or time period may be represented in universal time (Universal Time Coordinated, UTC). By way of example, the timestamp may be UTC time 12:00. For example, the time period may be UTC time 12:00 to UTC time 12:30.

In some embodiments, the non-terrestrial base station may further indicate currently covered tracking area information, or currently supported or managed tracking area information, to the core network element, including, for example, but not limited to, at least one of TAC, TAI, and PLMN identity.

In some embodiments, the tracking area related information of future (e.g., preset time or specific time) coverage of the non-terrestrial base station is included in the first tracking area list.

In some implementations, the first tracking area list includes only tracking area related information for future coverage by the non-terrestrial base station. For example, the non-terrestrial base station may indicate tracking area related information for future coverage of the non-terrestrial base station by introducing a new TA list. I.e. the first tracking area list may be a newly introduced TA list.

The non-terrestrial base station may also indicate to the core network element a second tracking area list, which is a list of tracking areas currently covered by the non-terrestrial base station. The second tracking area list, or supported TA list (Supported TA List).

Optionally, the first tracking area list may include a plurality of information elements (Information Element, IEs) for carrying tracking area information covered by the non-terrestrial base station at different points in time or time periods. For example, an IE is used to carry tracking area information that the non-terrestrial base station covers at a point in time or period of time. Optionally, each IE further includes time information for indicating time information associated with the tracking area information.

In some embodiments, the first tracking area list and the second tracking area list are carried in an NG setup request message.

For example, the NG establishment request message may include the contents as shown in table 1 below:

TABLE 1

Wherein Additional Supported TA list corresponds to a first tracking area list for indicating tracking area related information supported by the non-terrestrial base station in the future, supported TA List corresponds to a second tracking area list for indicating tracking area information supported by the non-terrestrial base station in the current, respectively.

In other implementations, the first tracking area list includes tracking area information currently covered by the non-terrestrial base station and tracking area related information for future coverage by the non-terrestrial base station. That is, the non-terrestrial base stations may indicate tracking area information for current coverage as well as future coverage to the core network element through the same tracking area list.

Optionally, the first tracking area list is carried in an NG establishment request message. For example, the NG establishment request message may include the contents as shown in table 2 below:

TABLE 2

Wherein Supported TA List corresponds to a first tracking area list, and the Supported TA List includes tracking area information of current support and future support of non-terrestrial base stations.

In some embodiments, a supported TA item (Supported TA Item) is included in Supported TA List, and at least one TA list may be included in Supported TA Item, wherein the number of TA lists carried in Supported TA Item is less than or equal to the maximum number of TA lists that can be carried (denoted maxnoofTotalTACs), and maxnoofTotalTACs may be predefined, or preconfigured.

For example, tracking area information for the current support as well as future support of non-terrestrial base stations is carried in Supported TA Item.

In some embodiments, a current TAC, a future TA list, and a broadcast PLMN list are included in Supported TA Item. The current TAC is used for indicating tracking area information currently supported by the non-ground base station, for example, TAC corresponding to the currently supported TA. The future TA list is used to indicate TA-related information that is supported in the future by the non-terrestrial base station.

The future TAC is used for indicating the TAC corresponding to the future TAs of the non-ground base station, and the time stamp is used for indicating the time associated with the future TAC.

Wherein the broadcast PLMN list is used to indicate PLMN identities supported by non-terrestrial base stations.

It should be understood that the hierarchical relationship of tracking area information in table 2 is merely an example, and the present application is not limited thereto.

For example, supported TA List may include a current TA list including the current TAC and a broadcast PLMN list and a future TA list that may include the future TAC and a timestamp and, optionally, a broadcast PLMN list indicating future supported PLMNs.

In some embodiments, the first information may be used for the core network element to obtain a base station type of the non-terrestrial base station.

For example, in case the first information comprises first indication information, the core network element may obtain the base station type of the non-terrestrial base station according to the first indication information.

In some implementations, the first indication information is used to indicate a base station identifier, where the base station identifier and a base station type have a mapping relationship, and exemplary base station IDs 1-6 correspond to a regenerative load type, and base station IDs 7-14 correspond to an S & F type. If the first indication information indicates the base station ID8, the core network element may learn that the non-terrestrial base station is of the S & F type.

In other implementations, the first indication information is used to indicate that the base station type of the non-terrestrial base station is S & F type, and the core network element may learn that the base station type of the non-terrestrial base station is S & F type according to the first indication information.

In some embodiments, the second indication information may also be used to implicitly indicate the base station type of the non-terrestrial base station.

For example, whether the first information includes second indication information for implicitly indicating whether the base station type of the non-terrestrial base station is a specific base station type, including, for example, an S & F type.

For example, in case the first information comprises the second indication information, i.e. in case the non-terrestrial base station indicates tracking area related information of future coverage to the core network element, the base station type for indicating the non-terrestrial base station is a specific base station type, e.g. S & F type.

In other words, in the case where the base station type of the non-terrestrial base station is a specific base station type, for example, S & F type, the second indication information is included in the first information. That is, in case that the base station type of the non-terrestrial base station is a specific base station type, for example, S & F type, the non-terrestrial base station indicates tracking area related information of future coverage to the core network element.

For example, in case the first information does not comprise the second indication information, i.e. the non-terrestrial base station does not indicate to the core network element tracking area related information of future coverage (or, in other words, indicates to the core network element only tracking area information of current coverage), the base station type of the non-terrestrial base station is not a specific base station type, e.g. is not an S & F type.

In other words, in case the base station type of the non-terrestrial base station is not a specific base station type, for example is not an S & F type, the second indication information is not included in the first information, i.e. the non-terrestrial base station does not indicate tracking area related information of future coverage to the core network element.

In some embodiments, the S & F type non-terrestrial base station and the core network element may not be connected, so that a feeder link between the S & F type non-terrestrial base station and the core network element may be unavailable, and therefore, when a tracking area of the non-terrestrial base station is changed due to operation of the non-terrestrial base station, the non-terrestrial base station may not trigger the tracking area configuration update in time, and the core network element may not know the change of the tracking area of the non-terrestrial base station in time, so that normal operation of an interface between the non-terrestrial base station and the core network element may be affected, for example, the core network element may issue paging information, but the non-terrestrial base station may not receive the paging information, so that normal communication of a terminal is affected. For the reasons mentioned above, in the embodiment of the present application, for the S & F type non-terrestrial base station, the tracking area related information covered in the future may be indicated to the core network element, so that the core network element may learn the tracking area information covered by the non-terrestrial base station at different times, and thus, the core network element may select an appropriate base station to page the terminal according to the tracking area information, which is beneficial to ensuring normal communication of the terminal. Alternatively, for other types of non-terrestrial base stations, the tracking area change of the non-terrestrial base station may be updated by a tracking area configuration update procedure. Or other types of non-terrestrial base stations, also indicate tracking area related information for future coverage to the core network element in a similar manner as the S & F type non-terrestrial base stations.

In some embodiments of the application, the method 400 further comprises:

the core network element performs a first operation in case the non-terrestrial base station is an S & F type base station;

wherein the first operation includes at least one of:

When the core network element needs to page a terminal and a feeder line link between the core network element and the non-ground base station is available, the core network element sends a paging message of the terminal to the non-ground base station;

suspending interface transmission between the core network element and the non-terrestrial base station in case a feeder link between the core network element and the non-terrestrial base station is not available;

When the core network element needs to page a terminal, and a tracking area where the terminal is located is included in a tracking area covered by the non-ground base station in the future or a tracking area covered currently, the core network element sends a paging message of the terminal to the non-ground base station;

When the core network element needs to page a terminal, and the tracking area where the terminal is located is not included in the tracking area covered by the non-ground base station in the future or the currently covered tracking area, the core network element determines not to send the paging message of the terminal to the non-ground base station;

and under the condition that the core network element needs to page the terminal, the core network element sends the paging message of the terminal to the non-ground base station.

In some implementations, suspending the interface transfer between the first device and the second device may be accomplished by:

the first device sends a first request message to the second device. Wherein the first request message is used for requesting a second device suspension interface transmission;

Wherein the first request message includes at least one of:

a suspension cause indication information for indicating that the feeder link is or will not be available;

the device comprises a suspension type indication information, a suspension type control information and a control information processing unit, wherein the suspension type indication information is used for indicating a transmission function of a suspension part interface or a transmission function of a suspension part interface;

Suspension time information.

In some embodiments, the first device automatically resumes at least one of interface transmission and resuming the terminal context based on the suspension time information.

In some embodiments, the first device may also receive a first response message from the second device. Wherein the first response message is used to indicate that the second device agrees to suspend interface transmission.

In some embodiments, the first device is an access network device, such as the aforementioned non-terrestrial base station, and the second device is a core network element.

In some embodiments, the suspension time information may include at least one of:

Suspension start time information;

Suspending duration information;

Suspension end time information;

The interface recovers the transmitted time information.

In some embodiments, the core network element performs data transmission with the terminal through a base station of a store and forward type, and/or the terminal is enabled with a store and forward function.

In other words, the terminal may be a terminal that performs data transmission with the core network element through the store and forward type base station, and/or a terminal that enables a store and forward function.

That is, for this type of terminal, the core network element may page the terminal in the manner described above.

In some embodiments, the terminal may be a low mobility terminal or a stationary terminal. That is, when the non-terrestrial base station moves to the tracking area where the terminal is currently located in the future, the tracking area where the terminal is located is unchanged, so that the core network element can realize effective paging of the terminal through the non-terrestrial base station.

In some embodiments, in the case that the core network element needs to page the terminal, the core network element may determine, according to the third information, whether to page the terminal through the non-terrestrial base station.

Wherein the third information includes at least one of:

the availability of feeder links between core network elements and the non-terrestrial base stations;

the tracking areas supported by the non-terrestrial base stations include, for example, tracking areas that are currently supported as well as supported in the future (e.g., a preset time). The determining manner of the availability of the feeder link between the core network element and the non-terrestrial base station refers to the description of the foregoing embodiment, and is not repeated herein for brevity.

It can be understood that, in the case that the feeder link between the core network element and the non-ground base station is available, the non-ground base station may receive the paging message issued by the core network element through the feeder link, and in this case, the core network element sends the paging message to the non-ground base station, which is beneficial to ensuring timely paging of the terminal. In the case that the feeder link between the core network element and the non-ground base station is unavailable, the non-ground base station cannot receive the paging message issued by the core network element through the feeder link, in this case, even if the core network element sends the paging message to the non-ground base station, the non-ground base station cannot receive the paging message, and thus, the non-ground base station cannot realize timely paging of the terminal, in this case, the core network element may determine not to send the paging message to the non-ground base station. Optionally, in this case, the core network element may send the paging message to other non-terrestrial base stations, where a feeder link between the core network element and the other non-terrestrial base stations is available, and/or the tracking area supported by the non-terrestrial base stations includes a tracking area where the terminal is currently located. Optionally, the non-terrestrial base station is also a store and forward type base station.

It may be appreciated that, in the case where the tracking area supported by the non-terrestrial base station includes the tracking area where the terminal is currently located, the core network element may page the terminal through the non-terrestrial base station, and in this case, the core network element may send a paging message of the terminal to the non-terrestrial terminal. In the case that the tracking area supported by the non-terrestrial base station does not include the tracking area where the terminal is currently located, the core network element may not page the terminal through the non-terrestrial base station, and in this case, the core network element may not page the terminal even if the core network element sends a paging message to the non-terrestrial base station.

Therefore, the core network element performs paging of the terminal according to the third information, which is beneficial to ensuring paging performance of the terminal and further ensuring normal communication of the terminal.

In some specific implementations, the core network element determines to page the terminal through the non-terrestrial base station if the following conditions are met, i.e. sending a paging message of the terminal to the non-terrestrial base station:

a feeder link between a core network element and the non-terrestrial base station is available;

The tracking area supported by the non-terrestrial base station includes a tracking area where the terminal is currently located, for example, a tracking area supported by the non-terrestrial base station in the future or the tracking area currently supported includes a tracking area where the terminal is currently located.

Therefore, in the case that the feeder link between the core network element and the non-terrestrial base station is available and the tracking area supported by the non-terrestrial base station includes the tracking area where the terminal is currently located, the terminal is paged through the non-terrestrial terminal, which is beneficial to ensuring effective paging of the terminal.

In other embodiments, the core network element determines not to page the terminal through the non-terrestrial base station, i.e. not to send a paging message for the terminal to the non-terrestrial base station, if at least one of the following conditions is met:

a feeder link between a core network element and the non-terrestrial base station is not available;

The tracking area supported by the non-terrestrial base station does not include the tracking area in which the terminal is currently located, e.g., neither the tracking area supported by the non-terrestrial base station in the future nor the tracking area currently supported by the non-terrestrial base station includes the tracking area in which the terminal is currently located.

Therefore, in the case that the feeder link between the core network element and the non-terrestrial base station is unavailable and/or the tracking area supported by the non-terrestrial base station does not include the tracking area where the terminal is currently located, the terminal is not paged through the non-terrestrial terminal, which is beneficial to avoiding ineffective paging of the terminal.

Hereinafter, a specific flow of the wireless communication method according to the embodiment of the present application will be described with reference to embodiment 1 and embodiment 2.

Example 1:

in this embodiment 1, the first information is used to indicate base station type related information of a non-terrestrial base station.

For example, the first information includes first indication information.

As shown in fig. 7, the wireless communication method may include the steps of:

S501, the non-ground base station sends first information to a core network element, wherein the first information is used for indicating base station type related information of the non-ground base station.

For example, the first information is used to indicate a base station identity of a non-terrestrial base station, the base station identity and the base station type having a mapping relationship.

For another example, the first information is used to indicate a base station type of the non-terrestrial base station. For example, different values of the first information are used to indicate different base station types.

S502, the core network element sends second information to the non-ground base station, and the second information is used for indicating that the core network element supports storage and forwarding, that is, the core network element has storage and forwarding capability.

Alternatively, the first information and the second information may be interacted during an interface setup procedure or may be interacted during an interface reset procedure.

Alternatively, the first information and the second information may be interacted during an access network configuration update.

In some embodiments, the first information is carried in an interface setup request message, which may include, for example, but is not limited to, NG setup request, S1 setup requenst.

In some embodiments, the second information is carried in an interface setup response message, which may include, for example, but not limited to NG setup response, S1 setup response.

In some embodiments, the first information is carried in an access network configuration update message.

In some embodiments, the second information is carried in an access network configuration update confirm message.

And S503, the core network element acquires the base station type of the non-ground base station according to the first information.

For example, it is known from the first information whether the non-terrestrial base station is of the S & F type.

S504, in the case that the base station type of the non-terrestrial base station is S & F type, performing a first operation.

In some embodiments, the first operation includes at least one of:

When the core network element needs to page a terminal and a feeder line link between the core network element and the non-ground base station is available, the core network element sends a paging message of the terminal to the non-ground base station;

In case a feeder link between the core network element and the non-terrestrial base station is not available, interface transmission between the core network element and the non-terrestrial base station is suspended, e.g. no paging message is sent to the non-terrestrial base station.

Because the non-ground base station of the S & F type and the core network element may not be connected, the feeder line link between the non-ground base station and the core network element may not be available, so when the core network element needs to page the terminal through the non-ground base station, the availability of the feeder line link between the non-ground base station and the core network element is considered to determine whether to page the terminal through the non-ground base station, which is beneficial to ensuring the paging performance of the terminal.

Example 2:

in this embodiment 2, the first information is used to indicate tracking area related information that is covered by the non-ground base station at a preset time.

For example, the first information includes second indication information.

As shown in fig. 8, the wireless communication method may include the steps of:

s601, a non-ground base station sends first information to a core network element, wherein the first information is used for indicating tracking area related information covered by the non-ground base station in the future.

In some implementations, the first information may include at least one tracking area information for future (e.g., a preset time or a specific time) coverage by the non-terrestrial base station.

In other implementations, the first information includes at least one tracking area information for future coverage by non-terrestrial base stations and time information associated with each tracking area information.

In some embodiments, in the case that the interface establishment request message carries information about a tracking area of future coverage of the non-terrestrial base station, the base station type of the non-terrestrial base station is implicitly indicated to be a specific base station type, for example, S & F type.

S602, the core network element sends second information to the non-ground base station, wherein the second information is used for indicating that the core network element supports storage and forwarding, that is, the core network element has storage and forwarding capability.

Alternatively, the first information and the second information may be interacted during an interface setup procedure or may be interacted during an interface reset procedure.

Alternatively, the first information and the second information may be interacted during an access network configuration update.

In some embodiments, the first information is carried in an interface setup request message, which may include, for example, but is not limited to, NG setup request, S1 setup requenst.

In some embodiments, the second information is carried in an interface setup response message, which may include, for example, but not limited to NG setup response, S1 setup response.

In some embodiments, the first information is carried in an access network configuration update message.

In some embodiments, the second information is carried in an access network configuration update confirm message.

And S503, the core network element acquires the base station type of the non-ground base station according to the first information.

For example, in the case where the first information includes tracking area related information of future coverage of a non-terrestrial base station, it is known that the non-terrestrial base station is of the S & F type.

S504, in the case that the base station type of the non-terrestrial base station is S & F type, performing a first operation.

In some embodiments, the first operation includes at least one of:

When the core network element needs to page a terminal, and a tracking area where the terminal is located is included in a tracking area covered by the non-ground base station in the future or a tracking area covered currently, the core network element sends a paging message of the terminal to the non-ground base station;

When the core network element needs to page a terminal, and the tracking area where the terminal is located is not included in the tracking area covered by the non-ground base station in the future or the currently covered tracking area, the core network element determines not to send the paging message of the terminal to the non-ground base station;

and under the condition that the core network element needs to page the terminal, the core network element sends the paging message of the terminal to the non-ground base station.

The tracking area of the non-ground base station changes along with the operation of the non-ground base station, so that the non-ground base station can send the related information of the tracking area covered in the future to the core network element, the core network element can acquire the information of the tracking area covered by the non-ground base station at different times, and further, when the terminal needs to be paged, whether the tracking area supported by the non-ground base station comprises the tracking area where the terminal is located or not can be considered, so that the proper non-ground terminal can be selected for paging the terminal, and the paging performance of the terminal is ensured.

In summary, in the embodiment of the present application, the non-ground base station may indicate to the core network element the base station type related information of the non-ground base station and/or the tracking area related information of the non-ground base station, so that the core network element may learn the base station type and/or the tracking area of the non-ground base station, so that the core network element may perform paging for the terminal better.

The method embodiments of the present application are described in detail above with reference to fig. 6 to 8, and the apparatus embodiments of the present application are described in detail below with reference to fig. 9 to 13, it being understood that the apparatus embodiments and the method embodiments correspond to each other, and similar descriptions may refer to the method embodiments.

According to the wireless communication method provided by the embodiment of the application, the execution main body can be a wireless communication device. In the embodiment of the present application, a wireless communication device performs a wireless communication method as an example, and the wireless communication device provided in the embodiment of the present application is described.

Fig. 9 shows a schematic block diagram of a wireless communication device 700 according to an embodiment of the application. As shown in fig. 9, the apparatus 700 includes:

A receiving unit 710, configured to receive first information from a non-terrestrial base station, where the first information is used to indicate at least one of:

Base station type related information of the non-ground base station;

And tracking area related information of future coverage of the non-ground base station.

In some embodiments, the tracking area related information covered by the non-ground base station in the future is tracking area related information covered by the non-ground base station at a preset time.

In some embodiments, in a case that the first information is at least used to indicate base station type related information of the non-terrestrial base station, the first information is used to indicate a base station identifier of the non-terrestrial base station, where the base station identifier has a mapping relationship with a base station type.

In some embodiments, the wireless communication device 700 is configured with or stores a mapping of the base station identity to base station type.

In some embodiments, the first information is used to indicate that the base station type of the non-terrestrial base station is one of:

A regenerative load type;

Store and forward type;

A high track regenerative load type;

medium track regenerative load type;

low track regenerative load type;

high track store and forward type;

Middle track store and forward type;

low track store and forward type.

In some embodiments, the tracking area related information of future coverage of the non-terrestrial base station comprises at least one tracking area information of future coverage of the non-terrestrial base station.

In some embodiments, the tracking area related information for future coverage of the non-terrestrial base station further comprises time information associated with the at least one tracking area information.

In some embodiments, the time information associated with the at least one tracking area information is a time stamp or a time period.

In some embodiments, the tracking area related information of future coverage of the non-terrestrial base station is included in a first tracking area list;

wherein the first tracking area list only comprises the tracking area related information covered by the non-ground base station in the future, or

The first tracking area list comprises tracking area information currently covered by the non-ground base station and tracking area related information covered by the non-ground base station in the future.

In some embodiments, the wireless communication device 700 further comprises:

and the processing unit is used for acquiring the base station type of the non-ground base station according to the first information.

In some embodiments, the processing unit is further to:

acquiring the base station type of the non-ground base station according to the base station type related information of the non-ground base station, or

And under the condition that the first information indicates the tracking area related information covered by the non-ground base station in the future, acquiring the base station type of the non-ground base station as a storage and forwarding type.

In some embodiments, the wireless communication device 700 further comprises:

the processing unit is used for executing a first operation under the condition that the non-ground base station is a base station of a storage and forwarding type;

wherein the first operation includes at least one of:

In the event that a terminal needs to be paged and a feeder link between the wireless communication device 700 and the non-terrestrial base station is available, the wireless communication device 700 sends a paging message for the terminal to the non-terrestrial base station;

suspending interface transmissions between the wireless communication device 700 and the non-terrestrial base station in the event that a feeder link between the wireless communication device 700 and the non-terrestrial base station is unavailable;

transmitting a paging message of a terminal to the non-ground base station under the condition that the terminal needs to be paged and a tracking area where the terminal is located is included in a tracking area covered by the non-ground base station in the future or a tracking area covered by the non-ground base station at present;

Determining not to send the paging message of the terminal to the non-ground base station under the condition that the terminal needs to be paged and the tracking area where the terminal is located is not included in the tracking area covered by the non-ground base station in the future or the tracking area covered by the current;

And sending the paging message of the terminal to the non-ground base station under the condition that the terminal needs to be paged.

In some embodiments, the wireless communication device 700 communicates data with the terminal via a store and forward type base station, and/or,

The terminal is enabled with store and forward functionality.

In some embodiments, the receiving unit 710 is further configured to perform one or more of:

receiving an interface establishment request message from the non-terrestrial base station, the interface establishment request message including the first information;

an access network configuration update message is received from the non-terrestrial base station, the access network configuration update message comprising the first information.

In some embodiments, the wireless communication device 700 further comprises:

a transmitting unit, configured to transmit second information to the non-terrestrial base station, where the second information is used to indicate that the wireless communication apparatus 700 supports store and forward.

In some embodiments, the transmitting unit is further configured to perform one or more of:

transmitting an interface establishment response message to the non-ground base station, wherein the interface establishment response message comprises the second information;

and sending an access network configuration update confirmation message to the non-ground base station, wherein the access network configuration update confirmation message comprises the second information.

Alternatively, in some embodiments, the sending unit and the receiving unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system on a chip. The processing unit may be one or more processors.

It should be understood that the wireless communication apparatus 700 according to the embodiment of the present application may correspond to the core network element in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the wireless communication apparatus 700 are respectively for implementing the corresponding procedures of the core network element in the embodiment of the method shown in fig. 6 to 8, and achieve the same technical effects, and are not repeated herein for avoiding repetition.

Fig. 10 shows a schematic block diagram of a wireless communication device 800 according to an embodiment of the application. As shown in fig. 10, the apparatus 800 includes:

a sending unit 810, configured to send first information to a core network element, where the first information is used to indicate at least one of the following:

base station type related information of the wireless communication device 800;

The wireless communication device 800 tracks area related information for future coverage.

In some embodiments, the tracking area related information for future coverage of the wireless communication device is tracking area related information for coverage of the non-terrestrial base station at a preset time.

In some embodiments, in the case that the first information is at least used to indicate base station type related information of the wireless communication apparatus 800, the first information is used to indicate a base station identity of the wireless communication apparatus 800, where the base station identity has a mapping relationship with a base station type.

In some embodiments, the first information is used to indicate that the base station type of the wireless communication device 800 is one of:

A regenerative load type;

Store and forward type;

A high track regenerative load type;

medium track regenerative load type;

low track regenerative load type;

high track store and forward type;

Middle track store and forward type;

low track store and forward type.

In some embodiments, the tracking area related information for future coverage of the wireless communication device 800 includes at least one tracking area information for future coverage of the wireless communication device 800.

In some embodiments, the tracking area related information for future coverage of the wireless communication device 800 further includes time information associated with the at least one tracking area information.

In some embodiments, the time information associated with the at least one tracking area information is a time stamp or a time period.

In some embodiments, the tracking area related information for future coverage of the wireless communication device 800 is included in a first tracking area list, wherein the first tracking area list includes tracking area related information for future coverage of the wireless communication device 800 only by the wireless communication device 800, or the first tracking area list includes tracking area information for current coverage of the wireless communication device 800 and tracking area related information for future coverage of the wireless communication device 800.

In some embodiments, where the wireless communication device 800 is a store and forward type base station, the first information indicates tracking area related information for future coverage by the wireless communication device 800.

In some embodiments, the sending unit 810 is further configured to:

Transmitting an interface establishment request message to the core network element, wherein the interface establishment request message comprises the first information and/or

And sending an access network configuration update message to the core network element, wherein the access network configuration update message comprises the first information.

In some embodiments, the wireless communication device 800 further comprises:

And the receiving unit is used for receiving second information from the core network element, wherein the second information is used for indicating the core network element to support storage and forwarding.

In some embodiments, the receiving unit is further configured to:

Receiving an interface setup response message from the core network element, the interface setup response message comprising the second information, and/or

And receiving an access network configuration update confirmation message from the core network element, wherein the access network configuration update confirmation message comprises the second information.

Alternatively, in some embodiments, the communication unit may be a communication interface or transceiver, or an input/output interface of a communication chip or a system on a chip.

It should be understood that the wireless communication device 800 for forwarding signals according to the embodiment of the present application may correspond to a non-terrestrial base station in the embodiment of the method of the present application, and the above and other operations and/or functions of each unit in the wireless communication device 800 are respectively for implementing the corresponding procedures of the non-terrestrial base station in the embodiment of the method shown in fig. 6 to 8, and achieve the same technical effects, and are not repeated herein for avoiding repetition.

In some embodiments, the apparatus 700 and the apparatus 800 in the embodiments of the present application may be an electronic device, for example, an electronic device with an operating system, or may be a component in an electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, the terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the present application are not limited in detail.

As shown in fig. 11, the embodiment of the present application further provides a communication device 900, which includes a processor 901 and a memory 902, where the memory 902 stores a program or instructions that can be executed on the processor 901, for example, when the communication device 900 is a core network element, the program or instructions implement, when executed by the processor 901, the steps executed by the core network element in the foregoing embodiment of the wireless communication method, and achieve the same technical effects. When the communication device 900 is a non-terrestrial base station, the program or the instructions when executed by the processor 901 implement each step executed by the non-terrestrial base station in the above-described embodiment of the wireless communication method, and achieve the same technical effects, and for avoiding repetition, the description is omitted here.

The embodiment of the application also provides network side equipment, which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running programs or instructions to realize the steps of the method embodiment shown in fig. 6 to 8. The network side equipment embodiment corresponds to the non-ground base station method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the non-ground base station embodiment, and the same technical effects can be achieved.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 12, the network-side apparatus 1000 includes an antenna 1001, a radio frequency device 1002, a baseband device 1003, a processor 1004, and a memory 1005. The antenna 1001 is connected to a radio frequency device 1002. In the uplink direction, the radio frequency device 1002 receives information via the antenna 1001, and transmits the received information to the baseband device 1003 for processing. In the downlink direction, the baseband device 1003 processes information to be transmitted, and transmits the processed information to the radio frequency device 1002, and the radio frequency device 1002 processes the received information and transmits the processed information through the antenna 1001.

The method performed by the network side device in the above embodiment may be implemented in a baseband apparatus 1003, where the baseband apparatus 1003 includes a baseband processor.

The baseband apparatus 1003 may include, for example, at least one baseband board, where a plurality of chips are disposed on the baseband board, as shown in fig. 12, where one chip, for example, a baseband processor, is connected to the memory 1005 through a bus interface, so as to call a program in the memory 1005, and perform the network side device operation shown in the above method embodiment.

The network-side device may also include a network interface 1006, such as a common public radio interface (Common Public Radio Interface, CPRI).

Specifically, the network side device 1000 of the embodiment of the present application further includes instructions or programs stored in the memory 1005 and capable of running on the processor 1004, and the processor 1004 calls the instructions or programs in the memory 1005 to execute the method executed by each module shown in fig. 10, and achieves the same technical effects, so that repetition is avoided and therefore, the description is omitted herein.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 13, the network-side device 1100 includes a processor 1101, a network interface 1102, and a memory 1103. The network interface 1102 is, for example, a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 1100 of the embodiment of the present invention further includes instructions or programs stored in the memory 1103 and capable of running on the processor 1101, and the processor 1101 calls the instructions or programs in the memory 1103 to execute the method executed by each module shown in fig. 9, so as to achieve the same technical effect, and thus, for avoiding repetition, the description is omitted herein.

The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above-mentioned wireless communication method embodiment, and can achieve the same technical effects, and in order to avoid repetition, the description is omitted here.

The processor is a processor in the communication device or the network side device described in the foregoing embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc. In some examples, the readable storage medium may be a non-transitory readable storage medium.

The embodiment of the application further provides a chip, which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running programs or instructions to realize the processes of the wireless communication method embodiment, and can achieve the same technical effects, so that repetition is avoided, and the description is omitted here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiments of the present application further provide a computer program/program product stored in a storage medium, where the computer program/program product is executed by at least one processor to implement the respective processes of the above-mentioned embodiments of the wireless communication method, and achieve the same technical effects, so that repetition is avoided and detailed description thereof is omitted.

The embodiment of the application also provides a communication system which comprises a core network node and a non-ground base station, wherein the core network node can be used for executing the steps executed by the core network node in the wireless communication method, and the non-ground base station can be used for executing the steps executed by the non-ground base station in the wireless communication method.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the description of the embodiments above, it will be apparent to those skilled in the art that the above-described example methods may be implemented by means of a computer software product plus a necessary general purpose hardware platform, but may also be implemented by hardware. The computer software product is stored on a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes instructions for causing a terminal or network side device to perform the methods according to the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms of embodiments may be made by those of ordinary skill in the art without departing from the spirit of the application and the scope of the claims, which fall within the protection of the present application.

Claims (38)

1. A wireless communication method, comprising: The core network element receives first information from the non-terrestrial base station, where the first information is used to indicate at least one of the following: information related to the base station type of the non-ground base station; Related information of the tracking area to be covered by the non-ground base station in the future. 2. The method according to claim 1 is characterized in that the information related to the tracking area that the non-ground base station will cover in the future is the information related to the tracking area covered by the non-ground base station at a preset time. 3. The method according to claim 1 or 2 is characterized in that, when the first information is used at least to indicate information related to the base station type of the non-ground base station, the first information is used to indicate the base station identifier of the non-ground base station, and the base station identifier has a mapping relationship with the base station type. 4. The method according to claim 3 is characterized in that the core network element is configured with or stores a mapping relationship between the base station identifier and the base station type. 5. The method according to claim 1 or 2, wherein the first information is used to indicate that the base station type of the non-ground base station is one of the following: Regenerative load type; Store and forward type; High track regenerative load type; Mid-track regenerative load type; Low orbit regenerative load type; High orbit store and forward type; mid-track store-and-forward type; Low orbit store and forward type. 6. The method according to any one of claims 1-5 is characterized in that the information related to the tracking area to be covered by the non-ground base station in the future includes at least one tracking area information to be covered by the non-ground base station in the future. 7. The method according to claim 6 is characterized in that the information related to the tracking area to be covered by the non-ground base station in the future also includes time information associated with the at least one tracking area information. 8. The method according to claim 7, characterized in that the time information associated with the at least one tracking area information is a timestamp or a time period. 9. The method according to any one of claims 1 to 8, characterized in that the information related to the tracking area to be covered by the non-ground base station in the future is included in the first tracking area list; The first tracking area list only includes relevant information of the tracking areas to be covered by the non-ground base station in the future; or The first tracking area list includes tracking area information currently covered by the non-ground base station and tracking area related information to be covered by the non-ground base station in the future. 10. The method according to any one of claims 1 to 9, characterized in that the method further comprises: The core network function obtains the base station type of the non-ground base station according to the first information. 11. The method according to claim 10, wherein the core network function obtains the base station type of the non-ground base station according to the first information, comprising: Acquire the base station type of the non-ground base station according to the base station type related information of the non-ground base station; or In a case where the first information indicates information related to a tracking area to be covered by the non-ground base station in the future, the base station type of the non-ground base station is acquired as a storage and forwarding type. 12. The method according to any one of claims 1 to 11, characterized in that the method further comprises: In a case where the non-terrestrial base station is a base station of a store-and-forward type, the core network element performs a first operation; The first operation includes at least one of the following: When the core network element needs to page the terminal and the feeder link between the core network element and the non-ground base station is available, the core network element sends a paging message of the terminal to the non-ground base station; When a feeder link between the core network element and the non-ground base station is unavailable, suspending interface transmission between the core network element and the non-ground base station; When the core network element needs to page the terminal and the tracking area where the terminal is located is included in the tracking area to be covered in the future or the tracking area currently covered by the non-terrestrial base station, the core network element sends a paging message of the terminal to the non-terrestrial base station; When the core network element needs to page the terminal and the tracking area where the terminal is located is not included in the tracking area to be covered in the future or the tracking area currently covered by the non-terrestrial base station, the core network element determines not to send a paging message of the terminal to the non-terrestrial base station; In the case that the core network element needs to page the terminal, the core network element sends a paging message of the terminal to the non-ground base station. 13. The method according to claim 12, characterized in that The core network element performs data transmission with the terminal via a base station of a storage and forwarding type; and/or, The terminal is enabled with a store and forward function. 14. The method according to any one of claims 1 to 13, wherein the core network element receives the first information from the non-ground base station, comprising one or more of the following: The core network element receives an interface establishment request message from the non-ground base station, where the interface establishment request message includes the first information; The core network element receives an access network configuration update message from the non-ground base station, and the access network configuration update message includes the first information. 15. The method according to any one of claims 1 to 14, characterized in that the method further comprises: The core network element sends second information to the non-ground base station, where the second information is used to indicate that the core network element supports storage and forwarding. 16. The method according to claim 15, wherein the core network element sends the second information to the non-ground base station, comprising one or more of the following: The core network element sends an interface establishment response message to the non-ground base station, where the interface establishment response message includes the second information; The core network element sends an access network configuration update confirmation message to the non-ground base station, and the access network configuration update confirmation message includes the second information. 17. A wireless communication method, comprising: The non-ground base station sends first information to a core network element, where the first information is used to indicate at least one of the following: information related to the base station type of the non-ground base station; Related information of the tracking area to be covered by the non-ground base station in the future. 18. The method according to claim 17 is characterized in that, when the first information is used at least to indicate information related to the base station type of the non-ground base station, the first information is used to indicate the base station identifier of the non-ground base station, and the base station identifier has a mapping relationship with the base station type. 19. The method according to claim 17, wherein the first information is used to indicate that the base station type of the non-ground base station is one of the following: Regenerative load type; Store and forward type; High track regenerative load type; Mid-track regenerative load type; Low orbit regenerative load type; High orbit store and forward type; mid-track store-and-forward type; Low orbit store and forward type. 20. The method according to any one of claims 16-18, characterized in that the information related to the tracking area to be covered by the non-ground base station in the future includes at least one tracking area information to be covered by the non-ground base station in the future. 21. The method according to claim 20 is characterized in that the information related to the tracking area to be covered by the non-ground base station in the future also includes time information associated with the at least one tracking area information. 22. The method according to any one of claims 17-21 is characterized in that, when the non-ground base station is a storage and forwarding type base station, the first information indicates relevant information of the tracking area to be covered by the non-ground base station in the future. 23. The method according to any one of claims 17 to 22, wherein the non-ground base station sends the first information to the core network element, comprising one or more of the following: The non-ground base station sends an interface establishment request message to the core network element, where the interface establishment request message includes the first information; The non-ground base station sends an access network configuration update message to the core network element, and the access network configuration update message includes the first information. 24. The method according to any one of claims 17 to 23, characterized in that the method further comprises: The non-ground base station receives second information from the core network element, where the second information is used to indicate that the core network element supports storage and forwarding. 25. The method according to claim 24, wherein the non-ground base station receives the second information from the core network element, comprising one or more of the following: The non-ground base station receives an interface establishment response message from the core network element, where the interface establishment response message includes the second information; The non-ground base station receives an access network configuration update confirmation message from the core network element, and the access network configuration update confirmation message includes the second information. 26. A wireless communication device, comprising: A receiving unit, configured to receive first information from a non-ground base station, wherein the first information is used to indicate at least one of the following: information related to the base station type of the non-ground base station; Related information of the tracking area to be covered by the non-ground base station in the future. 27. The device according to claim 26 is characterized in that, when the first information is used at least to indicate information related to the base station type of the non-ground base station, the first information is used to indicate the base station identifier of the non-ground base station, and the base station identifier has a mapping relationship with the base station type. 28. The apparatus according to claim 26, wherein the first information is used to indicate that the base station type of the non-ground base station is one of the following: Regenerative load type; Store and forward type; High track regenerative load type; Mid-track regenerative load type; Low orbit regenerative load type; High orbit store and forward type; mid-track store-and-forward type; Low orbit store and forward type. 29. The device according to any one of claims 26-28, characterized in that the information related to the tracking area that will be covered by the non-ground base station in the future includes at least one tracking area information that will be covered by the non-ground base station in the future. 30. The device according to claim 29, characterized in that the information related to the tracking area to be covered by the non-ground base station in the future also includes time information associated with the at least one tracking area information. 31. The device according to any one of claims 26 to 30, characterized in that the device further comprises: a processing unit, configured to perform a first operation if the non-terrestrial base station is a store-and-forward type base station; The first operation includes at least one of the following: When paging a terminal is required and a feeder link between the apparatus and the non-terrestrial base station is available, sending a paging message of the terminal to the non-terrestrial base station; suspending interface transmission between the wireless communication device and the non-terrestrial base station in the event that a feeder link between the device and the non-terrestrial base station is unavailable; When a terminal needs to be paged and the tracking area where the terminal is located is included in the tracking area covered by the non-terrestrial base station at a preset time or the tracking area currently covered, sending a paging message of the terminal to the non-terrestrial base station; When a terminal needs to be paging, and a tracking area where the terminal is located is not included in a tracking area covered by the non-terrestrial base station at a preset time or a tracking area currently covered, determining not to send a paging message of the terminal to the non-terrestrial base station; When paging the terminal is required, a paging message of the terminal is sent to the non-ground base station. 32. A wireless communication device, comprising: A sending unit, configured to send first information to a core network element, wherein the first information is used to indicate at least one of the following: Related information about the base station type of the wireless communication device; Information related to the tracking area that the wireless communication device will cover in the future. 33. The device according to claim 32 is characterized in that, when the first information is used at least to indicate information related to the base station type of the wireless communication device, the first information is used to indicate the base station identifier of the wireless communication device, and the base station identifier has a mapping relationship with the base station type. 34. The device according to claim 32, wherein the first information is used to indicate that the base station type of the wireless communication device is one of the following: Regenerative load type; Store and forward type; High track regenerative load type; Mid-track regenerative load type; Low orbit regenerative load type; High orbit store and forward type; mid-track store-and-forward type; Low orbit store and forward type. 35. The device according to any one of claims 32-34 is characterized in that the information related to the tracking area to be covered by the wireless communication device in the future includes at least one tracking area information to be covered by the wireless communication device in the future. 36. The device according to claim 35 is characterized in that the information related to the tracking area to be covered by the wireless communication device in the future also includes time information associated with the at least one tracking area information. 37. A communication device, characterized in that it comprises: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the computer program is executed by the processor, the steps of the method as described in any one of claims 1 to 16 are implemented, or the steps of the method as described in any one of claims 17 to 25 are implemented. 38. A readable storage medium, characterized in that the readable storage medium stores a program or instruction, and when the program or instruction is executed by a processor, it implements the steps in the method as described in any one of claims 1 to 16, or the steps in the method as described in any one of claims 17 to 25.