WO2023078402A1

WO2023078402A1 - Communication method and apparatus, and computer-readable storage medium

Info

Publication number: WO2023078402A1
Application number: PCT/CN2022/129926
Authority: WO
Inventors: 韩立锋
Original assignee: 展讯通信（上海）有限公司
Priority date: 2021-11-05
Filing date: 2022-11-04
Publication date: 2023-05-11
Also published as: CN116095764A

Abstract

The present application provides a communication method and apparatus, and a computer-readable storage medium. The method comprises: when a terminal device is located within a cell coverage range of a first network device, receiving a first identifier from the first network device, wherein the first identifier is used for identifying ephemeris information of a first cell, and the first cell is a neighboring cell of the terminal device; and if the first identifier is different from an identifier of ephemeris information stored in the terminal device, the terminal device sending, to the first network device, a request message for requesting the ephemeris information of the first cell. Therefore, a terminal device can know ephemeris information of a first cell in advance, such that when the terminal device enters the coverage range of the first cell, communication can be performed by using the ephemeris information obtained in advance, thereby improving the communication efficiency.

Description

Communication method, device and computer-readable storage medium

This application claims the priority of the Chinese patent application with application number 202111308704.1 and application title "communication method, device and computer-readable storage medium" filed with China Patent Office on November 05, 2021, the entire contents of which are incorporated by reference in In this application.

technical field

The present application relates to the technical field of communication, and in particular to a communication method, device and computer-readable storage medium.

Background technique

In a non-terrestrial network (NTN), network devices or wireless transmitters in the network devices can be mounted on satellites to provide communication services to terminal devices.

In NTN communication, the communication between terminal equipment and network equipment needs to go through satellites. Due to the mobility of the satellite, the mobility of the satellite causes the cells covering the terminal equipment to change. When a terminal device sends a signal to a network device, it needs to know the real-time position of the satellite in the sky in order to determine the timing advance of the signal and other information. In related technologies, the terminal device can determine the real-time position of the satellite in the sky according to the ephemeris information of the satellite. Satellites operate according to predetermined orbits, and the ephemeris information of satellites is used to describe the orbits of satellites and the position information of satellites in the orbits at each time.

However, how the terminal equipment obtains the ephemeris information of the satellite to improve the communication efficiency is a technical problem to be solved urgently.

Contents of the invention

The present application provides a communication method, device and computer-readable storage medium, which can enable terminal equipment to obtain ephemeris information of neighboring cells in advance, thereby improving communication efficiency.

In a first aspect, the present application provides a communication method, including:

The terminal device receives a first identifier from the first network device, where the first identifier is used to identify the ephemeris information of the first cell, and the ephemeris information of the first cell is used to indicate the orbit and position of the first satellite, The first cell is an adjacent cell of the serving cell of the terminal device;

If the first identifier is different from the identifier of the ephemeris information stored in the terminal device, then the terminal device sends a request message to the first network device, and the request message is used to request the ephemeris information of the first cell ephemeris information.

In a possible implementation, the method further includes:

The terminal device receives the ephemeris information of the first cell.

In a possible implementation manner, receiving the ephemeris information of the first cell by the terminal device includes:

The terminal device receives ephemeris information of the first cell from the first network device.

The terminal device receives the ephemeris information of the first cell from the second network device.

In a possible implementation, the method further includes:

The terminal device receives an ephemeris information acquisition notification from the first network device, where the ephemeris information acquisition notification is used to indicate an acquisition timing of the ephemeris information of the first cell.

In a possible implementation manner, receiving the first identifier from the first network device by the terminal device includes:

The terminal device receives system information from the first network device, where the system information includes the first identifier.

In a possible implementation manner, the system information further includes resource indication information, where the resource indication information indicates resources used for sending the request message.

In a second aspect, the present application provides a communication method, including:

The first network device determines the first identifier, the first identifier is used to identify the ephemeris information of the first cell, the ephemeris information of the first cell is used to indicate the orbit and position of the first satellite, and the first The cell is a cell of the second network device;

The first network device sends the first identifier.

In a possible implementation, the method further includes:

The first network device receives a request message from a terminal device, where the request message is used to request ephemeris information of the first cell, where the first cell is a neighboring cell of the serving cell of the terminal device.

In a possible implementation, the method further includes:

The first network device sends the ephemeris information of the first cell to the terminal device.

In a possible implementation, the method further includes:

The first network device determines the sending timing of the ephemeris information of the first cell according to the location information of the terminal device.

In a possible implementation, the method further includes:

The first network device sends an ephemeris information acquisition notification to the terminal device, where the ephemeris information acquisition notification is used to indicate an acquisition timing of the ephemeris information of the first cell.

In a possible implementation, the method further includes:

The first network device sends ephemeris broadcast timing information to the second network device, where the ephemeris broadcast timing information is used to indicate a broadcast timing of the ephemeris information of the first cell.

In a possible implementation, the method further includes:

The first network device determines the broadcast timing of the ephemeris information of the first cell according to the location information of the terminal device.

In a possible implementation, the method further includes:

The first network device sends the location information of the terminal device to the second network device.

In a possible implementation manner, sending the first identifier by the first network device includes:

The first network device sends system information, where the system information includes the first identifier.

In a possible implementation manner, the system information further includes: resource indication information, where the resource indication information indicates resources used for sending the request message.

In a possible implementation, the method further includes:

The first network device receives ephemeris information of the first cell from the second network device.

In a possible implementation, the method further includes:

The first network device sends an acquisition request for the ephemeris information of the first cell to the second network device.

In a third aspect, the present application provides a communication method, including:

The second network device determines the ephemeris information of the first cell, the ephemeris information of the first cell is used to indicate the orbit and position of the first satellite, and the first cell is a cell of the second network device;

The second network device sends the ephemeris information of the first cell to the first network device.

In a possible implementation, the method further includes:

The second network device receives a request for obtaining ephemeris information of the first cell from the first network device.

In a possible implementation, the method further includes:

The second network device receives the ephemeris broadcast timing information from the first network device, and the ephemeris broadcast timing information is used to indicate the broadcast timing of the ephemeris information of the first cell.

In a possible implementation, the method further includes:

The second network device receives the location information of the terminal device from the first network device;

The second network device determines a broadcast timing of the ephemeris information of the first cell according to the location information of the terminal device.

In a possible implementation, the method further includes:

The second network device sends the ephemeris information of the first cell to the terminal device according to the broadcast timing of the ephemeris information of the first cell.

In a fourth aspect, the present application provides a communication device, including:

A receiving module, configured to receive a first identification from a first network device, the first identification is used to identify the ephemeris information of the first cell, and the ephemeris information of the first cell is used to indicate the orbit of the first satellite and location, the first cell is an adjacent cell of the serving cell of the terminal device;

A sending module, configured to send a request message to the first network device if the first identifier is different from the identifier of the ephemeris information stored in the terminal device, and the request message is used to request the first cell ephemeris information.

In a fifth aspect, the present application provides a communication device, including:

A processing module, configured to determine a first identifier, the first identifier is used to identify the ephemeris information of the first cell, the ephemeris information of the first cell is used to indicate the orbit and position of the first satellite, and the first cell A cell is a cell of the second network device;

A sending module, configured to send the first identifier.

In a sixth aspect, the present application provides a communication device, including:

A processing module, configured to determine the ephemeris information of the first cell, the ephemeris information of the first cell is used to indicate the orbit and position of the first satellite, and the first cell is a cell of the second network device;

A sending module, configured to send the ephemeris information of the first cell to the first network device.

In a seventh aspect, the present application provides a communication device, including: a processor, and a memory communicatively connected to the processor;

the memory stores a computer program;

The processor executes the computer program stored in the memory to implement the method as described in the first aspect or any possible implementation manner of the first aspect, or to implement the second aspect or any possible implementation manner of the second aspect or implement the method described in the third aspect or any possible implementation manner of the third aspect.

In an eighth aspect, the present application provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a computer, any possible solution of the first aspect or the first aspect can be realized. The method described in the implementation manner, or, realize the method described in the second aspect or any possible implementation manner of the second aspect, or, implement the method described in the third aspect or any possible implementation manner of the third aspect Methods.

In a ninth aspect, the present application provides a computer program product, including a computer program. When the computer program is executed by a computer, the method as described in the first aspect or any possible implementation manner in the first aspect is implemented, or the method as described in the first aspect is implemented. The method described in the second aspect or any possible implementation manner of the second aspect, or implement the method described in the third aspect or any possible implementation manner of the third aspect.

In a tenth aspect, the present application provides a communication chip, including: a processor, and a memory communicatively connected to the processor;

the memory stores a computer program;

The communication method, device, and computer-readable storage medium provided by the present application can receive a first identifier from the first network device when the terminal device is located in the cell coverage area of the first network device, and the first identifier is used to identify the first cell For ephemeris information, the first cell is a neighboring cell of the terminal device; if the first identifier is different from the identifier of the ephemeris information stored in the terminal device, the terminal device sends a request message to the first network device to request the ephemeris information of the first cell ephemeris information. In this way, the terminal device can obtain the ephemeris information of the first cell in advance, so that when the terminal device enters the coverage area of the first cell, it can use the ephemeris information obtained in advance to communicate, thereby improving communication efficiency.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without any creative effort.

FIG. 1A is a schematic diagram of an NTN system architecture provided by an embodiment of the present application;

FIG. 1B is a schematic diagram of another NTN system architecture provided by the embodiment of the present application;

FIG. 1C is a schematic diagram of NTN cell movement provided by the embodiment of the present application;

FIG. 2 is a schematic flowchart of a communication method provided in an embodiment of the present application;

FIG. 3 is a schematic flowchart of another communication method provided by the embodiment of the present application;

FIG. 4 is a schematic flowchart of another communication method provided by the embodiment of the present application;

FIG. 5 is a schematic flowchart of another communication method provided by the embodiment of the present application;

FIG. 6 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 7 is a schematic structural diagram of another communication device provided by an embodiment of the present application;

FIG. 8 is a schematic structural diagram of another communication device provided by an embodiment of the present application;

FIG. 9 is a schematic structural diagram of another communication device provided by an embodiment of the present application.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

The terms "first", "second", "third", "fourth", etc. in this application, if any, are used to distinguish similar objects, and are not used to describe a specific order or sequence. The execution order of each step in the method provided in the present application is only an example, and there may be other orders in actual implementation, which is not limited in the present application. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

The technical solutions provided by the embodiments of the present application can be applied to various communication systems, for example: global system of mobile communication (GSM) system, code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, advanced long term evolution (LTE-A) system, new radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, universal mobile telecommunications system (UMTS), wireless local area networks (WLAN), wireless security True (wireless fidelity, WiFi), next-generation communication (5th-generation, 5G) system or other communication systems, etc.

In this embodiment of the present application, a terminal device generally has a wireless transceiver function, and may also be called a user equipment (user equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, Mobile equipment, user terminal, terminal, wireless communication device, user agent or user device, etc. The terminal device can be a station (staion, ST) in the WLAN, and can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital processing (personal digital assistant, PDA) devices, handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, and next-generation communication systems, such as terminal devices in NR networks or Terminal equipment in the future evolving public land mobile network (public land mobile network, PLMN) network, etc. Terminal equipment can be mobile phone, tablet computer (Pad), computer with wireless transceiver function, virtual reality (virtual reality, referred to as VR) terminal equipment, augmented reality (augmented reality, referred to as AR) terminal equipment, industrial control ( Wireless terminals in industrial control, vehicle-mounted terminal equipment, wireless terminals in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid, transportation safety Wireless terminal devices in (transportation safety), wireless terminal devices in smart cities, wireless terminal devices in smart homes, wearable terminal devices, etc. The terminal equipment involved in the embodiments of the present application may also be referred to as terminal, user equipment (UE), access terminal equipment, vehicle-mounted terminal, industrial control terminal, UE unit, UE station, mobile station, mobile station, remote station , remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE agent or UE device, etc. Terminal equipment can also be fixed or mobile.

Exemplarily, in this embodiment of the application, the terminal device may be a wearable device. Wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction. Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.

In this embodiment of the present application, the network device may be a device for communicating with a mobile device. The network device can be an access point (access point, AP) in WLAN, a base station (base transceiver station, BTS) in GSM or CDMA, a base station (nodeB, NB) in WCDMA, or a base station (nodeB, NB) in LTE. Evolved base stations (evolutional node B, eNB or eNodeB), or relay stations or access points, or vehicle-mounted devices, wearable devices, and network devices (gNB) in NR networks or network devices in future evolved PLMN networks, etc.

Exemplarily, in the embodiment of the present application, the network device may also be a base station installed in land, water, and other locations. Exemplarily, in this embodiment of the application, the network device may have a mobile feature, for example, the network device may be deployed on a satellite.

At present, the maximum coverage of a single cell in a wireless cellular communication system is usually only tens of kilometers. For sparsely populated areas such as rural areas and fields, a large number of network devices need to be deployed to achieve seamless wireless cellular coverage. For large continuous water areas such as oceans, wireless cellular seamless coverage is completely impossible. In order to meet the wireless communication needs in the above regions, the 3rd Generation Partnership Project (3GPP) introduced a non-terrestrial network (NTN).

In NTN, the base station or some base station functions are deployed on the satellite to provide seamless coverage for the terminal equipment on the ground.

In the application of satellites, according to the orbital height of the communication satellites providing services, communication satellites can be divided into geostationary earth orbit (GEO) satellites and non-geosynchronous earth orbit (Non-GEO) satellites. Among them, non-geosynchronous orbit satellites can be divided into low-earth orbit (LEO) satellites, medium-earth orbit (MEO) satellites and high elliptical orbit (high elliptical orbit, HEO) satellites. Among them, the orbital altitude range of LEO satellites is 500km-1500km, the orbital altitude range of MEO satellites is 2000-20000km, the closest point of HEO satellites to the earth's surface is 1000-21000km, and the farthest point is 39500-50600km. It is 35786km.

Usually, in order to ensure the coverage of the satellite and improve the system capacity of the entire satellite communication system, the satellite uses multiple beams to cover the ground. A satellite can form dozens or even hundreds of beams to cover the ground; a satellite beam can cover a diameter of several Ten to hundreds of kilometers of ground area.

Next, the system architecture of the NTN will be described with reference to FIG. 1A and FIG. 1B .

FIG. 1A is a schematic diagram of an NTN system architecture provided by an embodiment of the present application. As shown in FIG. 1A , the system architecture includes: a terminal device 101 and a satellite 102 . Wireless communication can be performed between the terminal device 101 and the satellite 102 . The network formed between the terminal device 101 and the satellite 102 may also be referred to as NTN. In the system architecture shown in FIG. 1A , the satellite 102 has the function of a base station, or in other words, the base station is deployed on the satellite 102 . Direct communication between the terminal device 101 and the satellite 102 is possible. Under the system architecture, the satellite 102 can be referred to as a network device.

FIG. 1B is a schematic diagram of another NTN system architecture provided by an embodiment of the present application. As shown in FIG. 1B , the system architecture includes: a terminal device 101 , a satellite 102 and a base station 103 . Wireless communication can be performed between the terminal device 101 and the satellite 102 , and communication between the satellite 102 and the base station 103 can be performed. The network formed among the terminal equipment 101, the satellite 102 and the base station 103 may be called NTN. In the system architecture shown in FIG. 1B , the satellite 102 does not have the function of a base station, or the satellite 102 has part of the functions of a base station. The communication between the terminal device 101 and the base station 103 needs to be relayed through the satellite 102 . Under this kind of system architecture, the base station 103 can be called a network device.

It should be noted that the system architecture and application scenarios described in the embodiments of the present application are for the purpose of more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute limitations on the technical solutions provided by the embodiments of the present application. It can be seen that with the evolution of the network architecture and the emergence of new service scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar problems.

In NTN communication, the communication between terminal equipment and network equipment needs to go through satellites. Due to the mobility of the satellite, the movement of the satellite will change the cell covering the terminal equipment. FIG. 1C is a schematic diagram of NTN cell movement provided by the embodiment of the present application. As shown in FIG. 1C , the terminal device is located within the coverage of cell A at a certain moment. With the movement of the satellite, the terminal device may be located within the coverage of the cell B at a later time. With the movement of the satellite, the terminal equipment may be located in the coverage area of the cell C at a later time.

When a terminal device sends a signal to a network device, it needs to know the real-time position of the satellite in the sky in order to determine the timing advance of the signal and other information. In related technologies, the terminal device can determine the real-time position of the satellite in the sky according to the ephemeris information of the satellite. Satellites operate according to predetermined orbits, and the ephemeris information of satellites is used to describe the orbits of satellites and the position information of satellites in the orbits at each time.

However, how the terminal equipment obtains the ephemeris information of the satellite is a technical problem to be solved urgently.

In the technical solution provided by the embodiment of the present application, when the terminal device is located in the cell coverage area of the first network device, it can receive the first identifier from the first network device, and the first identifier is used to identify the ephemeris information of the neighboring cell; if The first identifier is different from the identifier of the ephemeris information stored in the terminal device, and the terminal device sends a request message to the first network device to request the ephemeris information of the neighboring cell. In this way, the terminal device can obtain the ephemeris information of the adjacent cell in advance, so that when the terminal device enters the coverage of the adjacent cell, it can use the ephemeris information obtained in advance to communicate, thereby improving communication efficiency.

The technical solution of the present application will be described in detail below with specific embodiments. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

FIG. 2 is a schematic flowchart of a communication method provided by an embodiment of the present application. As shown in Figure 2, the method of this embodiment includes:

S201: The first network device determines a first identifier, where the first identifier is used to identify ephemeris information of the first cell.

Wherein, the ephemeris information of the first cell is used to indicate the orbit and position of the first satellite, and the first cell is a cell of the second network device.

First, the relationship among network equipment, satellites, cells, and terminal equipment involved in the embodiments of the present application is introduced. The first network device is the network device currently accessed by the terminal device, that is, the cell of the first network device is the serving cell of the terminal device. In this embodiment, the first cell refers to the cell of the second network device, and the first cell is a neighboring cell of the serving cell of the terminal device.

The first satellite is a satellite corresponding to the second network device, or in other words, the first satellite is a satellite connected to the second network device. Exemplarily, the second network device is carried on the first satellite, or at least part of the base station functions of the second network device is carried on the first satellite, so that network coverage of the first cell is achieved through the first satellite. When the terminal device enters the first cell, the communication between the terminal device and the second network device needs to go through the first satellite. That is to say, when the terminal device enters the first cell, the terminal device needs to know the position of the first satellite during the communication process between the terminal device and the second network device, so as to calculate the time advance for the terminal device to send signals to the second network device. quantity and other information.

In the embodiment of the present application, when the terminal device is located in the cell of the first network device, the terminal device may obtain the ephemeris information of the first satellite in advance through interaction with the first network device. In this way, when the terminal device enters the first cell, it can quickly realize communication with the second network device based on the ephemeris information of the first satellite.

In the embodiment of the present application, the ephemeris information of the first cell is used to indicate the trajectory and position of the first satellite, and the ephemeris information of the first cell may also be referred to as ephemeris information of the first satellite. Exemplarily, the ephemeris information of the first cell may include position information of the first satellite at each specific moment. In some scenarios, the ephemeris information may also be called an ephemeris table or an ephemeris book.

In the embodiment of the present application, the first identifier is used to identify the ephemeris information of the first cell. One identifier uniquely indicates one ephemeris information, and different identifiers correspond to different ephemeris information. Exemplarily, the identifier of the ephemeris information may be expressed in the form of a value, a character, a character string, etc., which is not limited in this embodiment.

In a possible implementation manner, the identifier of the ephemeris information of the first cell may be maintained by the first network device. In this implementation manner, S201 may include: the first network device receives ephemeris information of the first cell from the second network device, and generates the first identifier according to the ephemeris information of the first cell.

Specifically, the second network device may send the ephemeris information of the first cell to the first network device. For example, it may be sent periodically, or when the ephemeris information of the first cell changes. The first network device maintains the first identifier according to the received ephemeris information of the first cell.

For example, assume that the first flag is marked as flag, which is represented by a numerical type. When the first network device receives the ephemeris information of the first cell from the second network device for the first time, it generates a first identifier flag=1. When the first network device receives the ephemeris information of the first cell from the second network device again, it determines whether the ephemeris information of the first cell received this time has changed compared with the last time. If there is a change, the first identifier is updated to flag=2, and if there is no change, the first identifier remains unchanged. Subsequently, each time the first network device receives the ephemeris information of the first cell from the second network device, if it is determined that the ephemeris information of the first cell has changed compared with the previous time, the value of the first identification flag Add 1, otherwise unchanged.

In another possible implementation manner, the identifier of the ephemeris information of the first cell may be maintained by the second network device. In this implementation manner, S201 may include: the first network device receives the first identifier from the second network device.

Specifically, when the ephemeris information of the first cell changes, the second network device updates the first identifier, and sends the updated first identifier to the first network device. Thus, the first network device obtains the first identifier.

S202: The first network device sends a first identifier.

In this embodiment of the present application, the first network device sends the first identifier to the terminal device. Exemplarily, the first network device may broadcast the first identifier, so that all terminal devices located in the cell of the first network device can receive the first identifier.

In a possible implementation manner, the first identifier may be sent in system information. Specifically, the first network device sends system information, where the system information includes the first identifier. Correspondingly, the terminal device receives system information from the first network device, and obtains the first identifier from the system information.

Optionally, the above system information may be system information sent periodically, for example, the network device will broadcast the system information periodically regardless of whether the terminal device requests it or not.

Optionally, the above system information may be system information sent aperiodically, for example, the network device broadcasts the system information one or more times only when it receives a request from the terminal device.

Exemplarily, the above system information may be a master system information block (master information block, MIB) or system information blocks (system information blocks, SIBs). Wherein, the SIBs may be SIB1, SIB2, SIB3-11 and so on.

It should be noted that, when there are multiple neighboring cells in the cell of the first network device, the first network device may send identifiers of ephemeris information of one or more neighboring cells. When the first network device sends identifiers of ephemeris information of multiple neighboring cells, the multiple identifiers may be sent in the same system information, or may be sent in different system information.

Optionally, the first network device may also send the identifier of the ephemeris information of the own cell (that is, the cell of the first network device). Exemplarily, both the identity of the ephemeris information of the current cell and the identity of the ephemeris information of the neighboring cell are carried in the system message for broadcasting.

In some other possible implementation manners, the first identifier may also be sent in other information except system information, such as control information, etc., which are not listed in this embodiment.

S203: If the first identifier is different from the identifier of the ephemeris information stored in the terminal device, the terminal device sends a request message to the first network device.

Wherein, the request message is used to request the ephemeris information of the first cell.

In the embodiment of the present application, the terminal device may store the identifiers of the ephemeris information of one or more cells, and the ephemeris information of these cells. The ephemeris information of these cells can be obtained by requesting the network device before, or it can be pre-stored in the terminal device in other ways, for example, the operator can write the ephemeris information and its identification of the cell into the terminal device in the SIM card.

When the terminal device receives the first identification, it can compare the first identification with the identification stored by itself, and if the first identification is different from the identification of the ephemeris information stored in the terminal device, then request the first network device for the first identification. Cell ephemeris information.

Wherein, the first identification is different from the identification of the ephemeris information stored in the terminal device, including the following two situations:

Case 1: The identifier of the ephemeris information of the first cell is not stored in the terminal device. In this case, it means that the ephemeris information of the first cell is not stored in the terminal device, therefore, the terminal device may request the ephemeris information of the first cell from the first network device, so that the terminal device obtains the ephemeris information of the first cell.

Situation 2: The identifier of the ephemeris information of the first cell is stored in the terminal device, but the identifier is different from the first identifier. In this case, it means that the ephemeris information of the first cell has been updated, and the ephemeris information of the first cell stored in the terminal device is no longer the latest. Therefore, the terminal device can request the ephemeris information of the first cell from the first network device information, so that the terminal device can obtain the latest ephemeris information of the first cell.

In a possible implementation manner, in S202, the system information sent by the first network device may further include resource indication information, where the resource indication information indicates resources used for sending the request message. Optionally, the resource indication information may indicate at least one of a time domain position, a frequency domain position, and a code domain position of the resource. In this way, in S203, the terminal device sends the request message to the first network device on the resource.

It should be noted that, in this embodiment, the resource indication information and the first identifier may be carried by the same system information, or may be carried by different system information, which is not limited in this embodiment.

Optionally, after the terminal device sends the request message to the first network device, the terminal device may also receive ephemeris information of the first cell.

The communication method provided in this embodiment includes: the terminal device receives a first identifier from the first network device, the first identifier is used to identify the ephemeris information of the first cell, and the first cell is a neighboring cell of the serving cell of the terminal device ; If the first identifier is different from the identifier of the ephemeris information stored in the terminal device, the terminal device sends a request message to the first network device to request the ephemeris information of the first cell. Through the above process, the terminal device can obtain the ephemeris information of the neighboring cell in advance, so that when the terminal device enters the coverage area of the neighboring cell, it can use the ephemeris information obtained in advance to communicate, thereby improving communication efficiency.

FIG. 3 is a schematic flowchart of another communication method provided by the embodiment of the present application. As shown in Figure 3, the method of this embodiment includes:

S302: The second network device sends ephemeris information of the first cell to the first network device.

In this embodiment, the second network device determines the ephemeris information of the first cell. Exemplarily, the second network device may obtain pre-configured ephemeris information of the first cell. Alternatively, the second network device may receive the ephemeris information of the first cell sent by the satellite measurement and control system. After determining the ephemeris information of the first cell, the second network device sends the ephemeris information of the first cell to the first network device. The first network device is a network device corresponding to a neighboring cell of the first cell.

Exemplarily, the second network device may send the ephemeris information of the first cell to the first network device through the Xn interface. In an example, the second network device may periodically send the ephemeris information of the first cell to the first network device. In another example, after the ephemeris information of the first cell changes, the second network device sends the ephemeris information of the first cell to the first network device.

In a possible implementation manner, as shown in FIG. 3, before S302, it may also include:

S301: The first network device sends a request for acquiring ephemeris information of the first cell to the second network device.

Exemplarily, the first network device sends an acquisition request for the ephemeris information of the first cell to the second network device, so as to inform the second network device that when the ephemeris of the first cell changes, the updated ephemeris The information is notified to the first network device.

In another possible implementation manner, the second network device may also determine which network devices to send the ephemeris information of the first cell to, according to network management configuration information. Exemplarily, one or more cells may be configured in the network management system in advance, or one or more identifiers of network devices may be configured. When the ephemeris information of the first cell changes, the second network device will send the updated ephemeris information to the corresponding network device according to the pre-configured information.

S303: The first network device determines a first identifier, where the first identifier is used to identify ephemeris information of the first cell.

Exemplarily, the first network device determines the first identity according to the ephemeris information of the first cell received from the second network device. For example, if the first network device does not store the ephemeris information of the first cell, the first identifier is initially generated. If the first network device has stored the ephemeris information of the first cell, the first network device judges whether the ephemeris information of the first cell received this time is the same as the ephemeris information of the first cell stored by itself. If they are the same, the first identifier remains unchanged; if they are different, the first identifier is updated, for example, a value of the first identifier is added by 1.

S304: The first network device sends system information, where the system information includes the first identifier.

S305: If the first identifier is different from the identifier of the ephemeris information stored in the terminal device, the terminal device sends a request message to the first network device.

In this embodiment, the specific implementation manners of S304 and S305 are similar to the embodiment shown in FIG. 2 , and will not be repeated here.

In the communication method provided in this embodiment, the second network device sends the ephemeris information of the first cell to the first network device, so that the first network device can generate the first identifier according to the received ephemeris information of the first cell , and broadcast the first identifier through the system information, and further, the terminal device may request the first network device for the ephemeris information of the first cell when the first identifier is different from the identifier of the ephemeris information stored in itself. In this way, the terminal device can obtain the ephemeris information of the adjacent cell in advance, so that when the terminal device enters the coverage of the adjacent cell, it can use the ephemeris information obtained in advance to communicate, thereby improving communication efficiency.

FIG. 4 is a schematic flowchart of another communication method provided by the embodiment of the present application. As shown in Figure 4, the method of this embodiment includes:

S401: The second network device sends ephemeris information of the first cell to the first network device.

S402: The first network device determines a first identifier, where the first identifier is used to identify ephemeris information of the first cell.

S403: The first network device sends system information, where the system information includes the first identifier.

The first network device sends the first identifier. The first identifier is used to identify ephemeris information of a first cell, the ephemeris information of the first cell is used to indicate the orbit and position of the first satellite, and the first cell is a cell of the second network device.

S404: If the first identifier is different from the identifier of the ephemeris information stored in the terminal device, the terminal device sends a request message to the first network device.

In this embodiment, for specific implementation manners of S401 to S404, reference may be made to the detailed description of the embodiment shown in FIG. 3 , and details are not described here.

S405: The first network device sends the ephemeris information of the first cell to the terminal device.

Correspondingly, the terminal device receives the ephemeris information of the first cell from the first network device. Thus, the terminal device obtains the ephemeris information of the first cell. Optionally, the terminal device may also store the ephemeris information and the first identifier of the first cell, so as to be used for subsequent identifier comparison.

In this embodiment, the first network device may send the ephemeris information of the first cell to the terminal device through system information. The first network device may also send the ephemeris information of the first cell to the terminal device through other information (for example, control information). This embodiment does not limit it.

In a possible implementation manner, after receiving the request message sent by the terminal device, the first network device may immediately send the ephemeris information of the first cell to the terminal device. For example, after receiving the request message, the first network device may send the ephemeris information of the first cell to the terminal device at the latest sending opportunity. For example, if the system information carries the ephemeris information of the first cell, the ephemeris information of the first cell is sent at the latest sending opportunity of the system information after receiving the request message.

In another possible implementation manner, after receiving the request message sent by the terminal device, the first network device may determine the sending timing of the ephemeris information of the first cell according to the location information of the terminal device. Furthermore, according to the sending timing, the ephemeris information of the first cell is sent to the terminal device.

Exemplarily, the first network device may determine the time when the terminal device enters the coverage of the first cell according to the location information of the terminal device, and determine the time as the above sending opportunity, or determine a certain time before the time as the The above sending timing. In this way, on the premise that the terminal device can obtain the ephemeris information of the neighboring cell in advance, the flexibility of sending the ephemeris information of the first cell by the first network device can also be increased.

In the embodiment shown in FIG. 4 above, after the first network device receives the request message, the first network device sends the ephemeris information of the first cell to the terminal device. In some possible implementation manners, after the first network device receives the request message, the second network device may also send the ephemeris information of the first cell to the terminal device. The following two situations are described below.

Case 1: If the coverage of the second network device is switched in the form of hopping, for example, the original coverage of the second network device is area 1, and when its coverage needs to be changed, its coverage directly jumps to area 2 . In this case, the cell of the second network device may be called a fixed (fixed) cell.

In this case, it is assumed that the cell of the first network device (ie, the current serving cell of the terminal device) is called cell A. The second network device may determine the coverage switching time, and start broadcasting the ephemeris information of the first cell at the coverage switching time, or broadcast the ephemeris information of the first cell at a certain time after the coverage switching time . Wherein, the coverage switching time refers to the time when the coverage of the second network device is switched to the area corresponding to the original cell A.

Case 2: If the coverage of the second network device is switched in a continuously changing manner, for example, the original coverage of the second network device is area 1, and the coverage of the second network device gradually moves as time goes by. In this case, the cell of the second network device may be called a moving (moving) cell.

In this case, the first network device may inform the second network device of the broadcast timing of the ephemeris information of the first cell, so that the second network device broadcasts the ephemeris information of the first cell according to the broadcast timing. The following describes in detail with reference to the embodiment shown in FIG. 5 .

FIG. 5 is a schematic flowchart of another communication method provided by the embodiment of the present application. As shown in Figure 5, the method of this embodiment includes:

S501: The second network device sends ephemeris information of the first cell to the first network device.

S502: The first network device determines a first identifier, where the first identifier is used to identify ephemeris information of the first cell.

S503: The first network device sends system information, where the system information includes the first identifier.

S504: If the first identifier is different from the identifier of the ephemeris information stored in the terminal device, the terminal device sends a request message to the first network device.

In this embodiment, for specific implementation manners of S501 to S504, reference may be made to the detailed description of the embodiment shown in FIG. 3 , and details are not repeated here.

S505: The first network device sends an ephemeris information acquisition notification to the terminal device.

Wherein, the ephemeris information acquisition notification is used to indicate an acquisition timing of the ephemeris information of the first cell. That is, the ephemeris information acquisition notification is used to inform the terminal device at which timing to acquire the ephemeris information of the first cell.

Optionally, the ephemeris information acquisition notification is used to indicate an acquisition timing and cell information of the ephemeris information of the first cell. That is, the ephemeris information acquisition notification is used to inform the terminal device at which time to acquire the ephemeris information of the first cell from which cell.

Exemplarily, the first network device may inform the terminal device: please obtain the ephemeris information of the first cell from the first cell at the first moment. Wherein, the first moment may be an absolute moment, such as 12:38:26:340 milliseconds on October 15, 2021. The first moment may also be a relative time, such as 30 seconds, which means that the ephemeris information of the first cell is acquired from the first cell 30 seconds after receiving the ephemeris information acquisition notification.

Optionally, the first network device may determine an acquisition timing of the ephemeris information of the first cell according to the location information of the terminal device, and send the acquisition timing to the terminal device in an ephemeris information acquisition notification. Exemplarily, the first network device may determine the time when the terminal device enters the coverage of the first cell according to the location information of the terminal device, and determine the time as the above-mentioned acquisition opportunity, or determine a certain time after the time as the above acquisition timing. In this way, it is ensured that when the terminal device enters the coverage area of the first cell, it can obtain the ephemeris information of the first cell in time.

S506: The first network device sends ephemeris broadcast timing information to the second network device.

Wherein, the ephemeris broadcast timing information is used to indicate the broadcast timing of the ephemeris information of the first cell.

In this embodiment, the ephemeris broadcast timing information is used to inform the second network device at which timing to broadcast the ephemeris information of the first cell. In this embodiment, the first network device may indicate the broadcast opportunity in an explicit manner, or may indicate the broadcast opportunity in an implicit manner.

When an explicit indication is adopted, the ephemeris broadcast timing information may include a second time, so as to inform the second network device to broadcast the ephemeris information of the first cell at the second time. Wherein, the second moment may be an absolute moment, such as 12:38:26:340 milliseconds on October 15, 2021. The second moment may also be a relative time, such as 30 seconds, which means that the ephemeris information of the first cell is broadcast 30 seconds after receiving the ephemeris broadcast opportunity information.

Optionally, the first network device may determine the broadcast timing of the ephemeris information of the first cell according to the location information of the terminal device, and send the broadcast timing to the second network device in the ephemeris broadcast timing information. Exemplarily, the first network device may determine the time when the terminal device enters the coverage of the first cell according to the location information of the terminal device, and determine the time as the above-mentioned broadcast opportunity, or determine a certain time after the time as the The above broadcast timing. In this way, it is ensured that when the terminal device enters the coverage area of the first cell, it can obtain the ephemeris information of the first cell in time.

Optionally, the foregoing broadcast timing may refer to a timing at which the second network device may start broadcasting the ephemeris information of the first cell. The second network device may broadcast the ephemeris information of the first cell at a certain moment after the broadcast opportunity. For example, if the broadcast timing is T, the second network device may broadcast the ephemeris information of the first cell at a certain time after T, and the specific time at which the second network device broadcasts may be determined by the second network device itself , as long as it is after the above broadcast timing T.

Optionally, the foregoing broadcast timing may refer to a timing when the second network device actually broadcasts the ephemeris information of the first cell. For example, if the broadcast timing is T, the second network device broadcasts the ephemeris information of the first cell at time T.

When an implicit indication is adopted, the ephemeris broadcast timing information may include the location information of the terminal device. In this way, the second network device can determine the broadcast timing of the ephemeris information of the first cell according to the location information of the terminal device.

Exemplarily, the second network device may determine the time when the first cell covers the terminal device according to the location information of the terminal device, and determine the time as the broadcast opportunity, or determine a certain time after the time as the broadcast opportunity . In this way, it is ensured that the terminal device can obtain the ephemeris information of the first cell in time after entering the coverage of the first cell.

It can be understood that when an implicit indication is used, the above S506 can also be described as: the first network device sends the location information of the terminal device to the second network device, so that the second network device determines the location information of the terminal device based on the location information of the terminal device. Describe the broadcasting timing of the ephemeris information of the first cell.

It should be noted that this embodiment does not limit the execution order of S505 and S506, and the order of the two can be interchanged.

S507: The second network device sends the ephemeris information of the first cell to the terminal device.

Specifically, the second network device combines and sends the ephemeris information of the first cell to the terminals according to the broadcast timing of the ephemeris information of the first cell. Correspondingly, the terminal device receives the ephemeris information of the first cell from the second network device according to an acquisition timing of the ephemeris information of the first cell.

In this embodiment, the second network device may send the ephemeris information of the first cell to the terminal device through system information. The second network device may also send the ephemeris information of the first cell to the terminal device through other information (for example, control information). This embodiment does not limit it.

Optionally, after receiving the ephemeris information of the first cell, the terminal device may also store the ephemeris information of the first cell and the first identifier, so as to be used for subsequent identifier comparison.

On the basis of any of the above embodiments, it should be noted that the above embodiments are described by taking the terminal device requesting ephemeris information of a neighboring cell (ie, the first cell) as an example. In practical applications, there may be multiple neighboring cells in the serving cell of the terminal device, therefore, the terminal device can request the ephemeris information of multiple neighboring cells. That is to say, the system information sent by the first network device may include identifiers of ephemeris information of multiple neighboring cells.

In an example, the ephemeris information of multiple neighboring cells may adopt a unified identifier. In this way, when the terminal device determines that the identity is different from the identity stored by itself, it can simultaneously request ephemeris information of multiple neighboring cells. The first network device may send the ephemeris information of multiple neighboring cells to the terminal device together.

In another example, the ephemeris information of multiple neighboring cells may use their own identifiers. For example, taking three neighboring cells as an example, they are cell A, cell B, and cell C. The system information received by the terminal device includes the identification of the ephemeris information of cell A, the identification of the ephemeris information of cell B, the identification of cell C The identification of the ephemeris information. The terminal device can separately judge whether each identifier is different from the identifier of the ephemeris information stored by itself. If the identity of the ephemeris information of cell A is different from the identity of the ephemeris information stored by itself, and the identity of the ephemeris information of cell B is the same as the identity of the ephemeris information stored by itself, and the identity of the ephemeris information of cell C is the same as If the identifiers of the ephemeris information stored by itself are the same, the terminal device may only request the ephemeris information of cell A from the first network device.

In addition, in the above embodiments, the first cell may be a neighboring cell of multiple cells, and the identifier of the ephemeris information of the first cell (that is, the first identifier) may be broadcast in the system information of multiple neighboring cells. The following describes with examples, taking three cells as an example, which are cell A, cell B, and cell C respectively. The above three cells are adjacent cells to each other. It is assumed that the terminal device is located in the coverage area of cell A, that is, cell A is the serving cell of the terminal device, and cells B and C are neighboring cells. In this scenario, the terminal device may obtain the identifier of the ephemeris information of cell B from the system information of cell A, and may also obtain the identifier of the ephemeris information of cell B from the system information of cell C.

In a possible implementation manner, the terminal device may perform joint judgment in combination with system information of cell A and cell C to determine whether to request ephemeris information of cell B. For example, if the identifier of the ephemeris information of cell B obtained by the terminal device in the system information of cell A last time is 2, and the identifier of the ephemeris information of cell B obtained by the terminal device in the system information of cell C this time is 3, the In this case, the terminal device thinks that the ephemeris information of cell B has changed, and needs to re-request the ephemeris information of cell B. For another example, if the identifier of the ephemeris information of cell B obtained by the terminal device in the system information of cell A last time is 2, and the identifier of the ephemeris information of cell B obtained by the terminal device in the system information of cell C this time is 2, In this case, the terminal device considers that the ephemeris information of cell B has not changed, and does not need to re-request the ephemeris information of cell B.

In another example, the terminal device independently judges the system information of cell A and cell C, and determines whether to re-request the ephemeris information of cell B according to the identity of the ephemeris information of cell B successively obtained from the same cell. For example, if the identifier of the ephemeris information of cell B obtained by the terminal device in the system information of cell A last time is 2, and the identifier of the ephemeris information of cell B obtained in the system information of cell A this time is 3, then the terminal device It is considered that the ephemeris information of cell B has changed, and the ephemeris information of cell B needs to be requested again. For another example, if the identifier of the ephemeris information of cell B obtained by the terminal device in the system information of cell C last time is 3, and the identifier of the ephemeris information of cell B obtained in the system information of cell C this time is 3, then the terminal The device considers that the ephemeris information of cell B has not changed, and does not need to re-request the ephemeris information of cell B.

For the case of independent judgment, if the terminal device successively obtains the identification of the ephemeris information of cell B from the system information of cell A, and obtains the identification of the ephemeris information of cell B from the system information of cell C, then no matter whether the two identifications Whether they are the same or not, the terminal device will not determine whether the ephemeris information of cell B has changed based on this. In this case, since the terminal device cannot determine whether the ephemeris information stored by itself is the latest, it needs to re-request the ephemeris information of cell B.

FIG. 6 is a schematic structural diagram of a communication device provided by an embodiment of the present application. The communication device provided in this embodiment may be in the form of software and/or hardware. The communication device provided in this embodiment may be a terminal device, or may be a module, unit, chip, chip module, etc. in the terminal device.

As shown in FIG. 6 , the communication device 600 provided in this embodiment may include: a receiving module 601 and a sending module 602 . in,

The receiving module 601 is configured to receive a first identification from a first network device, the first identification is used to identify the ephemeris information of the first cell, and the ephemeris information of the first cell is used to indicate the operation of the first satellite track and location, the first cell is an adjacent cell of the serving cell of the terminal device;

The sending module 602 is configured to send a request message to the first network device if the first identifier is different from the identifier of the ephemeris information stored in the terminal device, and the request message is used to request the first Cell ephemeris information.

In a possible implementation manner, the receiving module 601 is further configured to: receive ephemeris information of the first cell.

In a possible implementation manner, the receiving module 601 is specifically configured to: receive ephemeris information of the first cell from the first network device.

In a possible implementation manner, the receiving module 601 is specifically configured to: receive the ephemeris information of the first cell from the second network device.

In a possible implementation manner, the receiving module 601 is further configured to: receive an ephemeris information acquisition notification from the first network device, where the ephemeris information acquisition notification is used to indicate the ephemeris of the first cell The timing of information acquisition.

In a possible implementation manner, the receiving module 601 is specifically configured to: receive system information from the first network device, where the system information includes the first identifier.

The communication device provided in this embodiment can be used to implement the communication method performed by the terminal device in any of the above method embodiments, and its implementation principle and technical effect are similar, and details are not described here.

FIG. 7 is a schematic structural diagram of another communication device provided by an embodiment of the present application. The communication device provided in this embodiment may be in the form of software and/or hardware. The communication apparatus provided in this embodiment may be the first network device, or may be a module, unit, chip, chip module, etc. in the first network device.

As shown in FIG. 7 , the communication device 700 provided in this embodiment includes: a processing module 701 and a sending module 702 . in,

The processing module 701 is configured to determine a first identifier, the first identifier is used to identify the ephemeris information of the first cell, the ephemeris information of the first cell is used to indicate the orbit and position of the first satellite, the The first cell is a cell of the second network device;

A sending module 702, configured to send the first identifier.

In a possible implementation manner, as shown in FIG. 7 , the communication device 700 provided in this embodiment may further include: a receiving module 703 . The receiving module 703 is configured to: receive a request message from a terminal device, where the request message is used to request ephemeris information of the first cell, where the first cell is a neighboring cell of the serving cell of the terminal device.

In a possible implementation manner, the sending module 702 is further configured to: send the ephemeris information of the first cell to the terminal device.

In a possible implementation manner, the processing module 701 is further configured to: determine a sending timing of the ephemeris information of the first cell according to the location information of the terminal device.

In a possible implementation manner, the sending module 702 is further configured to: send an ephemeris information acquisition notification to the terminal device, where the ephemeris information acquisition notification is used to indicate an acquisition timing of the ephemeris information of the first cell.

In a possible implementation manner, the sending module 702 is further configured to: send ephemeris broadcast timing information to the second network device, where the ephemeris broadcast timing information is used to indicate the broadcast of the ephemeris information of the first cell opportunity.

In a possible implementation manner, the processing module 701 is further configured to: determine a broadcast timing of the ephemeris information of the first cell according to the location information of the terminal device.

In a possible implementation manner, the sending module 702 is further configured to: send the location information of the terminal device to the second network device.

In a possible implementation manner, the sending module 702 is specifically configured to: send system information, where the system information includes the first identifier.

In a possible implementation manner, the receiving module 703 is further configured to: receive ephemeris information of the first cell from the second network device.

In a possible implementation manner, the sending module 702 is further configured to: send a request for obtaining ephemeris information of the first cell to the second network device.

The communication device provided in this embodiment may be used to implement the communication method performed by the first network device in any of the above method embodiments, and its implementation principles and technical effects are similar, and details are not described here.

FIG. 8 is a schematic structural diagram of another communication device provided by an embodiment of the present application. The communication device provided in this embodiment may be in the form of software and/or hardware. The communication apparatus provided in this embodiment may be the second network device, or a module, unit, chip, chip module, etc. in the second network device.

As shown in FIG. 8 , the communication device 800 provided in this embodiment includes: a processing module 801 and a sending module 802 .

Wherein, the processing module 801 is configured to determine the ephemeris information of the first cell, the ephemeris information of the first cell is used to indicate the orbit and position of the first satellite, and the first cell is the second network device district.

The sending module 802 is configured to send the ephemeris information of the first cell to the first network device.

In a possible implementation manner, as shown in FIG. 8 , the communication device 800 provided in this embodiment may further include a receiving module 803, and the receiving module 803 is configured to: receive the first A request for obtaining ephemeris information of a cell.

In a possible implementation manner, the receiving module 803 is configured to: receive ephemeris broadcast timing information from the first network device, where the ephemeris broadcast timing information is used to indicate the broadcast timing of the ephemeris information of the first cell .

In a possible implementation manner, the receiving module 803 is configured to: receive the location information of the terminal device from the first network device; the processing module 801 is configured to: determine the location information of the first cell according to the location information of the terminal device. Broadcast timing of ephemeris information.

In a possible implementation manner, the sending module 802 is specifically configured to: send the ephemeris information of the first cell to the terminal device according to the broadcast timing of the ephemeris information of the first cell.

The communication device provided in this embodiment may be used to implement the communication method performed by the second network device in any of the above method embodiments, and its implementation principle and technical effect are similar, and details are not described here.

FIG. 9 is a schematic structural diagram of another communication device provided by an embodiment of the present application. The communication device may be a terminal device, or a chip, a chip module, a processor, etc. in the terminal device. The communication device may also be a network device, or a chip, a chip module, a processor, etc. in the network device.

As shown in FIG. 9 , a communication device 900 provided in this embodiment includes: a transceiver 901 , a memory 902 , and a processor 903 . The transceiver 901 may include: a transmitter and/or a receiver. The transmitter may also be called a transmitter, a transmitter, a sending port, or a sending interface, and similar descriptions, and the receiver may also be called a receiver, a receiver, a receiving port, or a receiving interface, or similar descriptions. Exemplarily, the transceiver 901 , the memory 902 , and the processor 903 are connected to each other through a bus 904 .

The memory 902 is used to store computer programs.

The processor 903 is configured to execute the computer program stored in the memory, to implement the communication method performed by the terminal device in any of the above method embodiments, or to implement the communication method performed by the first network device in any of the above method embodiments, or to implement The communication method performed by the second network device in any of the above method embodiments.

Wherein, the receiver in the transceiver 901 may implement the receiving function of the terminal device/network device in the foregoing method embodiments. The transmitter in the transceiver 901 can implement the sending function of the terminal device/network device in the above method embodiment. The processor 903 may be configured to execute the processing functions of the terminal device/network device in the foregoing method embodiments.

The communication device provided in this embodiment can be used to implement the communication method performed by the terminal device in any of the above method embodiments, or the communication method performed by the first network device, or the communication method performed by the second network device, where The implementation principles and technical effects are similar and will not be repeated here.

An embodiment of the present application also provides a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program is executed by a computer, the communication method performed by the terminal device in any of the above method embodiments is implemented. , or, the communication method performed by the first network device, or, the communication method performed by the second network device, the implementation principles and technical effects are similar, and will not be repeated here.

An embodiment of the present application also provides a communication chip, including: a memory, a processor, and hardware system resources, where a computer program is stored in the memory, and the processor runs the computer program to implement any of the above method embodiments. The implementation principles and technical effects of the communication method performed by the terminal device, or the communication method performed by the first network device, or the second network device are similar, and will not be repeated here.

The embodiment of the present application also provides a computer program product, including a computer program, when the computer program is executed by a computer, it implements the communication method performed by the terminal device in any of the above method embodiments, or the communication method performed by the first network device method, or the communication method executed by the second network device, its implementation principle and technical effect are similar, and will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there may be other division methods, for example, multiple modules can be combined or integrated. to another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or modules may be in electrical, mechanical or other forms.

The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional module in each embodiment of the present application may be integrated into one processing unit, each module may exist separately physically, or two or more modules may be integrated into one unit. The units formed by the above modules can be implemented in the form of hardware, or in the form of hardware plus software functional units.

The above-mentioned integrated modules implemented in the form of software function modules can be stored in a computer-readable storage medium. The above-mentioned software function modules are stored in a storage medium, and include several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) or a processor (processor) to execute the method described in each embodiment of the present application. partial steps.

It should be understood that the above-mentioned processor can be a central processing unit (Central Processing Unit, CPU), and can also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC) wait. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like. The steps of the method disclosed in conjunction with the application can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.

The storage may include a high-speed RAM memory, and may also include a non-volatile storage NVM, such as at least one disk storage, and may also be a U disk, a mobile hard disk, a read-only memory, a magnetic disk, or an optical disk.

The bus can be an Industry Standard Architecture (Industry Standard Architecture, ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (Extended Industry Standard Architecture, EISA) bus, etc. The bus can be divided into address bus, data bus, control bus and so on. For ease of representation, the buses in the drawings of the present application are not limited to only one bus or one type of bus.

The above-mentioned storage medium can be realized by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable In addition to programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be a component of the processor. The processor and the storage medium may be located in application specific integrated circuits (Application Specific Integrated Circuits, ASIC). Of course, the processor and the storage medium can also exist in the electronic device or the main control device as discrete components.

Those of ordinary skill in the art can understand that all or part of the steps for implementing the above method embodiments can be completed by program instructions and related hardware. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above-mentioned method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit it; although the application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present application. scope.

Claims

A communication method, characterized in that, comprising:

The terminal device receives a first identifier from the first network device, where the first identifier is used to identify the ephemeris information of the first cell, and the ephemeris information of the first cell is used to indicate the orbit and position of the first satellite, The first cell is an adjacent cell of the serving cell of the terminal device;

If the first identifier is different from the identifier of the ephemeris information stored in the terminal device, then the terminal device sends a request message to the first network device, and the request message is used to request the ephemeris information of the first cell ephemeris information.
The method according to claim 1, further comprising:

The terminal device receives the ephemeris information of the first cell.
The method according to claim 2, wherein the receiving the ephemeris information of the first cell by the terminal device comprises:

The terminal device receives ephemeris information of the first cell from the first network device.
The method according to claim 2, wherein the receiving the ephemeris information of the first cell by the terminal device comprises:

The terminal device receives the ephemeris information of the first cell from the second network device.
The method according to claim 4, characterized in that the method further comprises:

The terminal device receives an ephemeris information acquisition notification from the first network device, where the ephemeris information acquisition notification is used to indicate an acquisition timing of the ephemeris information of the first cell.
The method according to any one of claims 1 to 5, wherein the terminal device receives the first identification from the first network device, comprising:

The terminal device receives system information from the first network device, where the system information includes the first identifier.
The method according to claim 6, wherein the system information further includes resource indication information, and the resource indication information indicates resources used for sending the request message.
A communication method, characterized in that, comprising:

The first network device determines the first identifier, the first identifier is used to identify the ephemeris information of the first cell, the ephemeris information of the first cell is used to indicate the orbit and position of the first satellite, and the first The cell is a cell of the second network device;

The first network device sends the first identifier.
The method according to claim 8, characterized in that the method further comprises:

The first network device receives a request message from a terminal device, where the request message is used to request ephemeris information of the first cell, where the first cell is a neighboring cell of the serving cell of the terminal device.
The method according to claim 9, characterized in that the method further comprises:

The first network device sends the ephemeris information of the first cell to the terminal device.
The method according to claim 10, characterized in that the method further comprises:

The first network device determines the sending timing of the ephemeris information of the first cell according to the location information of the terminal device.
The method according to claim 9, characterized in that the method further comprises:

The first network device sends an ephemeris information acquisition notification to the terminal device, where the ephemeris information acquisition notification is used to indicate an acquisition timing of the ephemeris information of the first cell.
The method according to claim 12, characterized in that the method further comprises:

The first network device sends ephemeris broadcast timing information to the second network device, where the ephemeris broadcast timing information is used to indicate a broadcast timing of the ephemeris information of the first cell.
The method according to claim 13, further comprising:

The first network device determines the broadcast timing of the ephemeris information of the first cell according to the location information of the terminal device.
The method according to claim 12, characterized in that the method further comprises:

The first network device sends the location information of the terminal device to the second network device.
The method according to any one of claims 9 to 15, wherein the first network device sending the first identifier includes:

The first network device sends system information, where the system information includes the first identifier.
The method according to claim 16, wherein the system information further includes: resource indication information, the resource indication information indicating resources used for sending the request message.
The method according to any one of claims 8 to 17, further comprising:

The first network device receives ephemeris information of the first cell from the second network device.
The method according to claim 18, further comprising:

The first network device sends an acquisition request for the ephemeris information of the first cell to the second network device.
A communication method, characterized in that, comprising:

The second network device determines the ephemeris information of the first cell, the ephemeris information of the first cell is used to indicate the orbit and position of the first satellite, and the first cell is a cell of the second network device;

The second network device sends the ephemeris information of the first cell to the first network device.
The method according to claim 20, further comprising:

The second network device receives a request for obtaining ephemeris information of the first cell from the first network device.
The method according to claim 20 or 21, wherein the method further comprises:

The second network device receives the ephemeris broadcast timing information from the first network device, and the ephemeris broadcast timing information is used to indicate the broadcast timing of the ephemeris information of the first cell.
The method according to claim 20 or 21, wherein the method further comprises:

The second network device receives the location information of the terminal device from the first network device;

The second network device determines a broadcast timing of the ephemeris information of the first cell according to the location information of the terminal device.
The method according to claim 22 or 23, further comprising:

The second network device sends the ephemeris information of the first cell to the terminal device according to the broadcast timing of the ephemeris information of the first cell.
A communication device, characterized by comprising:

A receiving module, configured to receive a first identification from a first network device, the first identification is used to identify the ephemeris information of the first cell, and the ephemeris information of the first cell is used to indicate the orbit of the first satellite and location, the first cell is an adjacent cell of the serving cell of the terminal device;

A sending module, configured to send a request message to the first network device if the first identifier is different from the identifier of the ephemeris information stored in the terminal device, and the request message is used to request the first cell ephemeris information.
A communication device, characterized by comprising:

A processing module, configured to determine a first identifier, the first identifier is used to identify the ephemeris information of the first cell, the ephemeris information of the first cell is used to indicate the orbit and position of the first satellite, and the first cell A cell is a cell of the second network device;

A sending module, configured to send the first identifier.
A communication device, characterized by comprising:

A processing module, configured to determine ephemeris information of a first cell, where the ephemeris information of the first cell is used to indicate the orbit and position of the first satellite, and the first cell is a cell of the second network device;

A sending module, configured to send the ephemeris information of the first cell to the first network device.
A communication device, characterized by comprising: a processor, and a memory communicatively connected to the processor;

the memory stores a computer program;

The processor executes the computer program stored in the memory to realize the method according to any one of claims 1 to 7, or to realize the method according to any one of claims 8 to 19, or, Implementing a method as claimed in any one of claims 20 to 24.
A computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a computer, the method according to any one of claims 1 to 7 is implemented, or , to implement the method as described in any one of claims 8 to 19, or to implement the method as described in any one of claims 20 to 24.
A computer program product, comprising a computer program, which implements the method according to any one of claims 1 to 7 when the computer program is executed by a processor, or implements the method according to any one of claims 8 to 19 method, or implement the method as described in any one of claims 20-24.