CN116095764A

CN116095764A - Communication method, device and computer readable storage medium

Info

Publication number: CN116095764A
Application number: CN202111308704.1A
Authority: CN
Inventors: 韩立锋
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2023-05-09
Also published as: WO2023078402A1

Abstract

The application provides a communication method, a communication device and a computer readable storage medium, when a terminal device is located in a cell coverage area of a first network device, a first identifier can be received from the first network device, 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; 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 for requesting the ephemeris information of the first cell. Therefore, the terminal equipment can acquire the ephemeris information of the first cell in advance, and when entering the coverage area of the first cell, the terminal equipment can communicate by utilizing the acquired ephemeris information in advance, so that the communication efficiency is improved.

Description

Communication method, device and computer readable storage medium

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a communications method, an apparatus, and a computer readable storage medium.

Background

In a non-terrestrial communication network (non-terrestrial network, NTN), a network device or a wireless transmitter in the network device may be mounted on a satellite to provide communication services to a terminal device.

In NTN communication, communication between a terminal device and a network device requires passing through a satellite. The mobility of the satellites is such that the cells covering the terminal devices change due to the mobility of the satellites. When the terminal device transmits a signal to the network device, the terminal device needs to know the real-time position of the satellite in the sky so as to determine information such as the time advance of transmitting the signal. In the related art, the terminal device may determine a real-time position of a satellite in the sky according to ephemeris information of the satellite. The satellites are operated in a predetermined orbit, and ephemeris information of the satellites is used to describe the orbit of the satellites and position information of the satellites in the orbit at each time.

However, how to obtain the ephemeris information of the satellite by the terminal device to improve the communication efficiency is a technical problem to be solved.

Disclosure of Invention

The application provides a communication method, a device and a computer readable storage medium, which can enable terminal equipment to know ephemeris information of neighbor cells in advance, so that communication efficiency is improved.

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

the method comprises the steps that a terminal device receives a first identifier from a first network device, wherein the first identifier is used for identifying ephemeris information of a first cell, the ephemeris information of the first cell is used for indicating an operation orbit and a position of a first satellite, and the first cell is a neighboring cell of a service cell of the terminal device;

And if the first identifier is different from the identifier of the ephemeris information stored in the terminal equipment, the terminal equipment sends a request message to the first network equipment, wherein the request message is used for requesting the ephemeris information of the first cell.

In a possible implementation manner, the method further includes:

the terminal device receives ephemeris information of the first cell.

In a possible implementation manner, the terminal device receives ephemeris information of the first cell, including:

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

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

In a possible implementation manner, the method further includes:

the terminal device receives an ephemeris information acquisition notification from the first network device, the ephemeris information acquisition notification indicating an acquisition opportunity of the ephemeris information of the first cell.

In a possible implementation manner, the terminal device receives a first identifier from a first network device, including:

The terminal device receives system information from the first network device, the system information including the first identification.

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

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

the method comprises the steps that first network equipment determines a first identifier, wherein the first identifier is used for identifying ephemeris information of a first cell, the ephemeris information of the first cell is used for indicating the running orbit and position of a first satellite, and the first cell is a cell of second network equipment;

the first network device sends the first identification.

In a possible implementation manner, 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, and the first cell is a neighboring cell of a serving cell of the terminal device.

In a possible implementation manner, the method further includes:

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

In a possible implementation manner, the method further includes:

and the first network equipment determines the sending time of the ephemeris information of the first cell according to the position information of the terminal equipment.

In a possible implementation manner, the method further includes:

the first network device sends an ephemeris information acquisition notification to the terminal device, wherein the ephemeris information acquisition notification is used for indicating an acquisition opportunity of the ephemeris information of the first cell.

In a possible implementation manner, the method further includes:

the first network device sends ephemeris broadcast opportunity information to the second network device, wherein the ephemeris broadcast opportunity information is used for indicating the broadcast opportunity of the ephemeris information of the first cell.

In a possible implementation manner, the method further includes:

and the first network equipment determines the broadcasting time of the ephemeris information of the first cell according to the position information of the terminal equipment.

In a possible implementation manner, 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, the first network device sends the first identifier, including:

The first network device transmits system information, the system information including the first identification.

In a possible implementation manner, the system information further includes: and resource indication information indicating resources for transmission of the request message.

In a possible implementation manner, the method further includes:

the first network device receives ephemeris information for the first cell from the second network device.

In a possible implementation manner, the method further includes:

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

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

the method comprises the steps that a second network device determines ephemeris information of a first cell, wherein the ephemeris information of the first cell is used for indicating the running orbit and the position of a first satellite, and the first cell is a cell of the second network device;

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

In a possible implementation manner, the method further includes:

the second network device receives an acquisition request of ephemeris information of the first cell from the first network device.

In a possible implementation manner, the method further includes:

the second network device receives ephemeris broadcast opportunity information from the first network device, the ephemeris broadcast opportunity information being used to indicate a broadcast opportunity of the ephemeris information of the first cell.

In a possible implementation manner, the method further includes:

the second network equipment receives the position information of the terminal equipment from the first network equipment;

and the second network equipment determines the broadcasting time of the ephemeris information of the first cell according to the position information of the terminal equipment.

In a possible implementation manner, the method further includes:

and the second network equipment sends the ephemeris information of the first cell to the terminal equipment according to the broadcasting time of the ephemeris information of the first cell.

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

the receiving module is used for receiving a first identifier from first network equipment, wherein the first identifier is used for identifying ephemeris information of a first cell, the ephemeris information of the first cell is used for indicating the running orbit and the position of a first satellite, and the first cell is a neighboring cell of a serving cell of the terminal equipment;

And the sending module is used for sending a request message to the first network equipment if the first identifier is different from the identifier of the ephemeris information stored in the terminal equipment, wherein the request message is used for requesting the ephemeris information of the first cell.

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

the processing module is used for determining a first identifier, wherein the first identifier is used for identifying ephemeris information of a first cell, the ephemeris information of the first cell is used for indicating the running orbit and the position of a first satellite, and the first cell is a cell of second network equipment;

and the sending module is used for sending the first identification.

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

the processing module is used for determining the ephemeris information of a first cell, wherein the ephemeris information of the first cell is used for indicating the running orbit and the position of a first satellite, and the first cell is a cell of second network equipment;

and the sending module is used for sending the ephemeris information of the first cell to the first network equipment.

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

The memory stores a computer program;

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

In an eighth aspect, the present application provides a computer readable storage medium having stored therein a computer program which, when executed by a computer, implements a method as described in the first aspect or any possible implementation of the first aspect, or implements a method as described in the second aspect or any possible implementation of the second aspect, or implements a method as described in the third aspect or any possible implementation of the third aspect.

In a ninth aspect, the present application provides a computer program product comprising a computer program which, when executed by a computer, implements the method as described in the first aspect or any one of the possible implementations of the first aspect, or implements the method as described in the second aspect or any one of the possible implementations of the second aspect, or implements the method as described in the third aspect or any one of the possible implementations of the third aspect.

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

the memory stores a computer program;

The communication method, the device and the computer readable storage medium provided by the application can receive a first identifier from the first network equipment when the terminal equipment is located in the cell coverage area of the first network equipment, 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 equipment; 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 for requesting the ephemeris information of the first cell. Therefore, the terminal equipment can acquire the ephemeris information of the first cell in advance, and when entering the coverage area of the first cell, the terminal equipment can communicate by utilizing the acquired ephemeris information in advance, so that the communication efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive faculty for a person skilled in the art.

Fig. 1A is a schematic diagram of an NTN system architecture according to an embodiment of the present disclosure;

fig. 1B is a schematic diagram of another NTN system architecture according to an embodiment of the present disclosure;

fig. 1C is a schematic diagram of NTN cell movement provided in an embodiment of the present application;

fig. 2 is a schematic flow chart of a communication method according to an embodiment of the present application;

fig. 3 is a flow chart of another communication method according to an embodiment of the present application;

fig. 4 is a flow chart of another communication method according to an embodiment of the present application;

fig. 5 is a flow chart of another communication method according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of another communication device according to an embodiment of the present application;

Fig. 8 is a schematic structural diagram of another communication device according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of still another communication device according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The terms "first," "second," "third," "fourth," and the like in this application, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. The order of execution of the steps in the method provided in the present application is merely an example, and other orders may be adopted in actual implementation, which is not limited in the present application. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The technical scheme provided by the embodiment of the application can be applied to various communication systems, for example: global system for mobile communications (global system of mobile communication, GSM), 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 (general packet radio service, GPRS), long term evolution (long term evolution, LTE) system, advanced long term evolution (advanced long term evolution, LTE-a) system, new Radio (NR) system, evolved system of NR system, LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum, NR-U) system on unlicensed spectrum, non-terrestrial communication network (Non-Terrestrial Networks, NTN) system, universal mobile communication system (universal mobile telecommunication system, UMTS), wireless local area network (wireless local area networks, WLAN), wireless fidelity (wireless fidelity, wiFi), next generation communication (5 th-generation, 5G) system, or other communication system, etc.

In the embodiment of the present application, the terminal device generally has a radio transceiver function, and may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user apparatus. The terminal device may be a Station (ST) in a WLAN, may be a cellular telephone, a cordless telephone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA) device, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle mounted device, a wearable device, and a next generation communication system, such as a terminal device in an NR network or a terminal device in a future evolved public land mobile network (public land mobile network, PLMN) network, etc. The terminal device may be a mobile phone (mobile phone), a tablet (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control (industrial control), a vehicle-mounted terminal device, a wireless terminal in unmanned driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city, a wireless terminal in smart home (smart home), a wearable terminal device, or the like. The terminal device according to the embodiments of the present application may also be referred to as a terminal, a User Equipment (UE), an access terminal device, a vehicle terminal, an industrial control terminal, a UE unit, a UE station, a mobile station, a remote terminal device, a mobile device, a UE terminal device, a wireless communication device, a UE agent, or a UE apparatus, etc. The terminal device may also be fixed or mobile.

For example, in the embodiment of the present application, the terminal device may be a wearable device. The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wear by applying wearable technology and developing wearable devices, such as glasses, gloves, watches, clothes, shoes and the like. The wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart jewelry, etc. for physical sign monitoring.

In embodiments of the present application, the network device may be a device for communicating with a mobile device. The network device may be an Access Point (AP) in WLAN, a base station (base transceiver station, BTS) in GSM or CDMA, a base station (nodeB, NB) in WCDMA, an evolved base station (evolutional node B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle device, a wearable device, and a network device (gNB) in NR network or a network device in future evolved PLMN network, etc.

For example, in the embodiment of the present application, the network device may also be a base station disposed on land, in a water area, or the like. For example, in embodiments of the present application, the network device may have a mobile nature, e.g., the network device may be deployed on a satellite.

Currently, the maximum coverage of a single cell in a wireless cellular communication system is usually only tens of kilometers, and for rural, open country and other vast areas, a large number of network devices need to be deployed if seamless coverage of the wireless cell is achieved. For large continuous waters such as oceans, wireless cellular seamless coverage is completely impossible. To meet the wireless communication needs of the above-mentioned regions, the third generation partnership project (the 3rd Generation Partnership Project,3 GPP) introduced a non-terrestrial communication network (non-terrestrial network, NTN).

In NTN, seamless coverage is provided for terminal devices on the ground by deploying base stations or parts of the base station functionality on the satellite.

In satellite applications, communication satellites can be categorized into geosynchronous orbit (geostationary earth orbit, GEO) satellites and Non-geosynchronous orbit (Non-GEO) satellites, depending on the orbit altitude of the serving communication satellite. The non-geosynchronous orbit satellites may be further classified into Low Earth Orbit (LEO) satellites, medium Earth Orbit (MEO) satellites, and high elliptical orbit (high elliptical orbit, HEO) satellites. Wherein, the orbit height range of the LEO satellite is 500 km-1500 km, the orbit height range of the MEO satellite is 2000-20000 km, the nearest point of the HEO satellite from the earth surface is 1000-21000 km, the farthest point is 39500-50600 km, and the orbit height of the GEO satellite is 35786km.

In general, in order to ensure the coverage of a satellite and improve the system capacity of the whole satellite communication system, the satellite adopts multiple beams to cover the ground, and one satellite can form tens or hundreds of beams to cover the ground; a satellite beam may cover a ground area of several tens to hundreds of kilometers in diameter.

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

Fig. 1A is a schematic diagram of an NTN system architecture according to 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 is possible between the terminal device 101 and the satellite 102. The network formed between the terminal equipment 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 base station, that is, is deployed on the satellite 102. The terminal device 101 and the satellite 102 may communicate directly. Under the system architecture, the satellite 102 may be referred to as a network device.

Fig. 1B is a schematic diagram of another NTN system architecture according to an embodiment of the present disclosure. As shown in fig. 1B, the system architecture includes: terminal equipment 101, satellite 102 and base station 103, can carry out radio communication between terminal equipment 101 and satellite 102, can communicate between satellite 102 and the base station 103. The network formed between the terminal equipment 101, the satellites 102 and the base station 103 may be referred to as 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 a part of the function of a base station. Communication between terminal equipment 101 and base station 103 requires transit through satellite 102. Under such a system architecture, the base station 103 may be referred to as a network device.

It should be noted that, the system architecture and the application scenario described in the embodiments of the present application are for more clearly describing the technical solution of the embodiments of the present application, and do not constitute a limitation to the technical solution provided in the embodiments of the present application, and those skilled in the art can know that, with the evolution of the network architecture and the appearance of the new service scenario, the technical solution provided in the embodiments of the present application is also applicable to similar problems.

In NTN communication, communication between a terminal device and a network device requires passing through a satellite. The movement of the satellites, due to their mobility, causes the cells covering the terminal devices to change. Fig. 1C is a schematic diagram of NTN cell movement according to an embodiment of the present application. As shown in fig. 1C, at some point the terminal device is located within the coverage of cell a. At some later point in time, the terminal device may be located within the coverage of cell B as the satellite moves. Then, with the movement of the satellite, at a later time, the terminal device may be located in the coverage area of the cell C.

When the terminal device transmits a signal to the network device, the terminal device needs to know the real-time position of the satellite in the sky so as to determine information such as the time advance of transmitting the signal. In the related art, the terminal device may determine a real-time position of a satellite in the sky according to ephemeris information of the satellite. The satellites are operated in a predetermined orbit, and ephemeris information of the satellites is used to describe the orbit of the satellites and position information of the satellites in the orbit at each time.

However, how to obtain the ephemeris information of the satellite by the terminal device is a technical problem to be solved.

In the technical solution provided in the embodiment of the present application, when the terminal device is located in a cell coverage area of the first network device, the first identifier may be received from the first network device, where the first identifier is used to identify ephemeris information of a neighboring cell; 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 for requesting the ephemeris information of the neighboring cell. Therefore, the terminal equipment can acquire the ephemeris information of the adjacent cell in advance, and can communicate by utilizing the acquired ephemeris information in advance when entering the coverage area of the adjacent cell, so that the communication efficiency is improved.

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

Fig. 2 is a flow chart of a communication method according to an embodiment of the present application. As shown in fig. 2, the method of the present embodiment includes:

s201: the first network device determines a first identification, the first identification identifying ephemeris information for the first cell.

The ephemeris information of the first cell is used for indicating the running orbit and the position of the first satellite, and the first cell is a cell of the second network device.

First, the relation among the network device, the satellite, the cell and the terminal device in the embodiment of the present application will be described. The first network device is the network device to which the terminal device is currently connected, 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 a cell of the second network device, and the first cell is a neighboring cell of a serving cell of the terminal device.

The first satellite is a satellite corresponding to the second network device, or the first satellite is a satellite connected with the second network device. The second network device is illustratively carried on the first satellite, or at least part of the base station functionality of the second network device is carried on the first satellite, such that network coverage of the first cell is achieved by the first satellite. When the terminal device enters the first cell, communication between the terminal device and the second network device needs to pass through the first satellite. That is, when the terminal device enters the first cell, the terminal device needs to know the position of the first satellite in the process of communicating with the second network device, so as to calculate information such as the time advance of the signal sent by the terminal device to the second network device.

In the embodiment of the present application, when the terminal device is located in a cell of the first network device, the terminal device may acquire 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, communication with the second network device can be quickly achieved based on the ephemeris information of the first satellite.

In this embodiment of the present application, the ephemeris information of the first cell is used to indicate the moving track and the position of the first satellite, and the ephemeris information of the first cell may also be referred to as the ephemeris information of the first satellite. For example, the ephemeris information of the first cell may include position information of the first satellite at each particular time. In some scenarios, ephemeris information may also be referred to as ephemeris or ephemeris.

In the embodiment of the application, the first identifier is used for identifying ephemeris information of the first cell. One identifier uniquely indicates one ephemeris information, and ephemeris information corresponding to different identifiers is different. The identification of the ephemeris information may be represented in the form of a numerical value, a character string, or the like, which is not limited in this embodiment.

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

In particular, the second network device may send 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 denoted as flag, and is represented by a numerical type. The first network device generates a first identification flag=1 when receiving ephemeris information of the first cell from the second network device for the first time. When the first network equipment receives the ephemeris information of the first cell from the second network equipment again, judging whether the received ephemeris information of the first cell changes compared with the last time. If the first identifier is changed, updating the first identifier to be flag=2, and if the first identifier is not changed, the first identifier is unchanged. Subsequently, when the first network device receives the ephemeris information of the first cell from the second network device every time, if the ephemeris information of the first cell is judged to be changed compared with the last time, the value of the first identification flag is added with 1, otherwise, the value is unchanged.

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

S202: the first network device transmits a first identification.

In the embodiment of the application, the first network device sends the first identifier to the terminal device. For example, the first network device may send the first identifier in a broadcast manner, so that terminal devices located in a cell of the first network device may each receive the first identifier.

In one possible implementation, the first identifier may be sent with the system information. Specifically, the first network device transmits system information, which includes the first identification. Correspondingly, the terminal equipment receives the system information from the first network equipment and acquires the first identification from the system information.

Alternatively, the system information may be periodically transmitted system information, for example, the network device may periodically broadcast the system information, whether or not the terminal device requests it.

Alternatively, the system information may be non-periodically transmitted system information, for example, the network device may broadcast the system information one or more times when receiving a request from the terminal device.

The system information may be, for example, a master system information block (master information block, MIB) or a system information block (system information blocks, SIBs). SIBs may be SIB1, SIB2, SIB 3-11, etc.

When a cell of the first network device has a plurality of neighboring cells, the first network device may send an identification of ephemeris information of one or more neighboring cells. When the first network device transmits the identities of the ephemeris information of the plurality of neighboring cells, the plurality of identities may be transmitted in the same system information or may be transmitted in different system information.

Optionally, the first network device may also send an identification of ephemeris information of the cell (i.e. the cell of the first network device). Illustratively, the identification of the ephemeris information of the cell and the identification of the ephemeris information of the adjacent cell are carried in a system message for broadcasting.

In other possible implementations, the first identifier may also be sent in other information besides system information, for example, control information, which is not specifically 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 for requesting ephemeris information of the first cell.

In the embodiment of the application, the terminal equipment can store the identification of the ephemeris information of one or more cells and the ephemeris information of the cells. The ephemeris information of these cells may be previously requested from the network device or may be pre-stored in the terminal device by other means, for example, the ephemeris information of the cells and their identity may be written by the operator into the SIM card of the terminal device.

When the terminal equipment receives the first identifier, the first identifier can be compared with the identifier stored by the terminal equipment, and if the first identifier is different from the identifier of the ephemeris information stored in the terminal equipment, the ephemeris information of the first cell is requested to the first network equipment.

The first identifier is different from the identifier of the ephemeris information stored in the terminal equipment, and comprises the following two cases:

case 1: the identity of the ephemeris information of the first cell is not stored in the terminal device. In this case, it is explained that the ephemeris information of the first cell is not stored in the terminal device, and 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.

Case 2: the terminal device stores therein an identification of ephemeris information of the first cell, but the identification is different from the first identification. In this case, it is explained that the ephemeris information of the first cell has been updated, and the ephemeris information of the first cell stored in the terminal device has not been updated, so that the terminal device can request the first network device for the ephemeris information of the first cell so that the terminal device obtains the updated 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 a resource used for sending the request message. Alternatively, 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, the terminal device sends the request message to the first network device over the resource in S203.

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 further receive ephemeris information of the first cell.

The communication method provided in this embodiment includes: the method comprises the steps that a terminal device receives a first identifier from a 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 a 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 for requesting the ephemeris information of the first cell. Through the process, the terminal equipment can acquire the ephemeris information of the adjacent cell in advance, so that the terminal equipment can utilize the acquired ephemeris information to communicate when entering the coverage range of the adjacent cell, and the communication efficiency is improved.

Fig. 3 is a flow chart of another communication method according to an embodiment of the present application. As shown in fig. 3, the method of the present embodiment includes:

s302: the second network device transmits ephemeris information of the first cell to the first network device.

In this embodiment, the second network device determines ephemeris information for the first cell. Illustratively, the second network device may obtain ephemeris information for the preconfigured first cell. Alternatively, the second network device may receive ephemeris information of the first cell transmitted by the satellite measurement and control system. And after the second network equipment determines the ephemeris information of the first cell, the second network equipment sends the ephemeris information of the first cell to the first network equipment. The first network device is a network device corresponding to a neighboring cell of the first cell.

Illustratively, the second network device may send the ephemeris information of the first cell to the first network device via the Xn interface. In one example, the second network device may periodically send ephemeris information for the first cell to the first network device. In another example, the second network device sends the ephemeris information of the first cell to the first network device after the change of the ephemeris information of the first cell.

In a possible implementation manner, as shown in fig. 3, before S302, the method may further include:

s301: the first network device sends an acquisition request of ephemeris information of the first cell to the second network device.

The first network device sends an obtaining request of the ephemeris information of the first cell to the second network device, so as to inform the second network device of timely informing the first network device of updated ephemeris information when the ephemeris of the first cell changes.

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

S303: the first network device determines a first identification for identifying ephemeris information of the first cell.

The first network device determines the first identity based on ephemeris information of the first cell received from the second network device. For example, if the first network device does not store ephemeris information for the first cell, the first identity is initially generated. If the first network device has stored the ephemeris information of the first cell, the first network device determines whether the received ephemeris information of the first cell is the same as the ephemeris information of the first cell stored by the first network device. If the first marks are the same, the first marks are kept unchanged; if the first identifier is different, updating the first identifier, for example, adding 1 to the value of the first identifier.

S304: the first network device sends system information, wherein the system information comprises a first identifier.

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

The request message is used for requesting ephemeris information of the first cell.

In this embodiment, the specific implementation manner of S304 and S305 is similar to that of the embodiment shown in fig. 2, and will not be described here again.

In the communication method provided by the 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 can request the ephemeris information of the first cell from the first network device when the first identifier is different from the identifier of the ephemeris information stored by the terminal device. Therefore, the terminal equipment can acquire the ephemeris information of the adjacent cell in advance, and can communicate by utilizing the acquired ephemeris information in advance when entering the coverage area of the adjacent cell, so that the communication efficiency is improved.

Fig. 4 is a flow chart of another communication method according to an embodiment of the present application. As shown in fig. 4, the method of the present embodiment includes:

s401: the second network device transmits ephemeris information of the first cell to the first network device.

S402: the first network device determines a first identification, the first identification identifying ephemeris information for the first cell.

S403: the first network device sends system information, wherein the system information comprises a first identifier.

The first network device transmits a first identification. The first identifier is used for identifying ephemeris information of a first cell, the ephemeris information of the first cell is used for indicating the running orbit and the position of a first satellite, and the first cell is a cell of the second network equipment.

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, the specific implementation manner of S401 to S404 may be referred to the detailed description of the embodiment shown in fig. 3, which is not described herein.

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

Correspondingly, the terminal device receives ephemeris information of the first cell from the first network device. Thus, the terminal device knows the ephemeris information of the first cell. Optionally, the terminal device may further store the ephemeris information of the first cell and the first identifier 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 the system information. The first network device may also send the ephemeris information of the first cell to the terminal device via other information, e.g. control information. This embodiment is not limited thereto.

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

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

For example, the first network device may determine, according to the location information of the terminal device, a time when the terminal device enters the coverage area of the first cell, determine the time as the transmission opportunity, or determine a time before the time as the transmission opportunity. In this way, on the premise that the terminal equipment can acquire the ephemeris information of the adjacent cell in advance, the flexibility of the first network equipment for transmitting the ephemeris information of the first cell can be further improved.

In the embodiment shown in fig. 4, after receiving the request message, the first network device sends the ephemeris information of the first cell to the terminal device. In some possible implementations, the first network device may further send, after receiving the request message, ephemeris information of the first cell to the terminal device by the second network device. The following two cases are explained.

Case 1: if the coverage area of the second network device is switched in a hopping manner, for example, the original coverage area of the second network device is area 1, and when the coverage area needs to be changed, the coverage area of the second network device is directly hopped to area 2. In this case, the cell of the second network device may be referred to as a fixed (fixed) cell.

In this case, it is assumed that the cell of the first network device, i.e. the current serving cell of the terminal device, is referred to as cell a. The second network device may determine a coverage switching time, and begin broadcasting the ephemeris information of the first cell at the coverage switching time, or broadcast the ephemeris information of the first cell at a time after the coverage switching time. The coverage switching time refers to a time when the coverage of the second network device is switched to the area range corresponding to the original cell a.

Case 2: if the coverage area of the second network device is switched in a continuously variable manner, for example, the original coverage area of the second network device is area 1, and the coverage area of the second network device gradually moves over time. In this case, the cell of the second network device may be referred to as a mobile (moving) cell.

In this case, the broadcasting timing of the ephemeris information of the first cell by the second network device may be informed by the first network device so that the second network device broadcasts the ephemeris information of the first cell according to the broadcasting timing. The following is a detailed description of the embodiment shown in fig. 5.

Fig. 5 is a flow chart of another communication method according to an embodiment of the present application. As shown in fig. 5, the method of the present embodiment includes:

s501: the second network device transmits ephemeris information of the first cell to the first network device.

S502: the first network device determines a first identification, the first identification identifying ephemeris information for the first cell.

S503: the first network device sends system information, wherein the system information comprises a 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, the specific implementation manner of S501 to S504 may be referred to the detailed description of the embodiment shown in fig. 3, which is not described herein.

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

Wherein the ephemeris information acquisition notification indicates an acquisition occasion of the ephemeris information of the first cell. That is, the ephemeris information acquisition notification is used to tell the terminal apparatus 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 timing to acquire the ephemeris information of the first cell from which cell.

Illustratively, the first network device may inform the terminal device that: please acquire the ephemeris information of the first cell from the first cell at the first moment. The first time may be an absolute time, such as 2021, 10, 15, 12, 38 minutes, 26 seconds, 340 milliseconds. The first time may also be a relative time, for example 30 seconds, indicating 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, according to the location information of the terminal device, an acquisition opportunity of the ephemeris information of the first cell, and send the acquisition opportunity to the terminal device in an ephemeris information acquisition notification. For example, the first network device may determine, according to the location information of the terminal device, a time when the terminal device enters the coverage area of the first cell, determine the time as the acquisition opportunity, or determine a time after the time as the acquisition opportunity. Thus, when the terminal equipment enters the coverage area of the first cell, the ephemeris information of the first cell can be timely obtained.

S506: the first network device transmits ephemeris broadcast opportunity information to the second network device.

The ephemeris broadcasting time information is used for indicating broadcasting time of the ephemeris information of the first cell.

In this embodiment, the ephemeris broadcast opportunity information is used to inform the second network device at which opportunity to broadcast the ephemeris information of the first cell. In this embodiment, the first network device may explicitly indicate the broadcast opportunity, or may implicitly indicate the broadcast opportunity.

When indicated explicitly, the ephemeris broadcast opportunity information may include a second time to inform the second network device to broadcast the ephemeris information of the first cell at the second time. The second time may be an absolute time, such as 2021, 10, 15, 12, 38 minutes, 26 seconds, 340 milliseconds. The second time may also be a relative time, for example 30 seconds, indicating that the ephemeris information of the first cell is broadcast 30 seconds after the ephemeris broadcast opportunity information is received.

Optionally, the first network device may determine, according to the location information of the terminal device, a broadcast opportunity of the ephemeris information of the first cell, and send the broadcast opportunity to the second network device in the ephemeris broadcast opportunity information. For example, the first network device may determine, according to the location information of the terminal device, a time when the terminal device enters the coverage area of the first cell, determine the time as the broadcasting opportunity, or determine a time after the time as the broadcasting opportunity. Thus, when the terminal equipment enters the coverage area of the first cell, the ephemeris information of the first cell can be timely obtained.

Alternatively, the broadcast opportunity may refer to an opportunity when 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 time after the broadcast opportunity. For example, if the broadcasting time is T, the second network device may broadcast the ephemeris information of the first cell at a time after T, and the second network device may determine at which time, by itself, as long as it is after the broadcasting time T.

Alternatively, the broadcasting opportunity may refer to an opportunity 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 the time T.

When implicitly indicated, the ephemeris broadcast opportunity information may include location information of the terminal device. In this way, the second network device may determine the broadcast opportunity of the ephemeris information of the first cell based on the location information of the terminal device.

For example, the second network device may determine, according to the location information of the terminal device, a time when the first cell covers the terminal device, determine the time as the broadcasting opportunity, or determine a time after the time as the broadcasting opportunity. In this way, the terminal equipment is ensured to be capable of timely acquiring the ephemeris information of the first cell after entering the coverage of the first cell.

It can be appreciated that S506 above can also be described as: the first network device sends the position information of the terminal device to the second network device, so that the second network device determines the broadcasting time of the ephemeris information of the first cell according to the position information of the terminal device.

Note that, in this embodiment, the execution order of S505 and S506 is not limited, and the order of the two may be interchanged.

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

Specifically, the second network device merges and transmits the ephemeris information of the first cell to the number of terminals according to the broadcasting time of the ephemeris information of the first cell. Correspondingly, the terminal equipment receives the ephemeris information of the first cell from the second network equipment according to the acquisition time 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 the system information. The second network device may also send the ephemeris information of the first cell to the terminal device via other information, e.g. control information. This embodiment is not limited thereto.

Optionally, after receiving the ephemeris information of the first cell, the terminal device may further 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, in the above embodiments, the terminal device requests ephemeris information of a neighboring cell (i.e., the first cell) as an example. In practical applications, there may be multiple neighbor cells in the serving cell of the terminal device, and therefore, the terminal device may request ephemeris information of the multiple neighbor cells. That is, the system information sent by the first network device may include identification of ephemeris information of a plurality of neighboring cells.

In one example, ephemeris information for a plurality of neighbor cells may be uniformly identified. In this way, the terminal device may request ephemeris information of a plurality of neighboring cells at the same time when determining that the identity is different from the self-stored identity. The first network device may send ephemeris information of a plurality of neighboring cells to the terminal device together.

In another example, ephemeris information for a plurality of neighbor cells may be identified individually. For example, taking 3 neighboring cells as an example, the system information received by the terminal device includes an identifier of ephemeris information of the cell a, an identifier of ephemeris information of the cell B, and an identifier of ephemeris information of the cell C. The terminal device may determine whether each of the identifications is different from the stored ephemeris information. If the identity of the ephemeris information of cell a is different from the identity of the ephemeris information stored by itself, while 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 the identity of the ephemeris information stored by itself, the terminal device may request only the ephemeris information of cell a from the first network device.

In addition, in the foregoing embodiments, the first cell may be a neighboring cell of the plurality of cells, and the identifier of the ephemeris information of the first cell (i.e., the first identifier) may be broadcasted in the system information of the plurality of neighboring cells. In the following, 3 cells are taken as an example, and cell a, cell B and cell C are taken as examples. The 3 cells are adjacent cells. 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 cell B and cell C are neighboring cells. In this scenario, the terminal device may obtain the identifier of the ephemeris information of the cell B in the system information of the cell a, or may obtain the identifier of the ephemeris information of the cell B in the system information of the cell C.

In a possible implementation manner, the terminal device may combine the system information of the cell a and the system information of the cell C to determine whether the ephemeris information of the cell B needs to be requested. For example, if the terminal device last obtained the identifier of the ephemeris information of the cell B in the system information of the cell a is 2 and the terminal device at this time obtained the identifier of the ephemeris information of the cell B in the system information of the cell C is 3, the terminal device considers that the ephemeris information of the cell B has changed and needs to re-request the ephemeris information of the cell B. For another example, if the terminal device obtains the identifier of the ephemeris information of the cell B from the system information of the cell a last time as 2, and the terminal device obtains the identifier of the ephemeris information of the cell B from the system information of the cell C this time as 2, the terminal device considers that the ephemeris information of the cell B has not changed, and does not need to request the ephemeris information of the cell B again.

In another example, the terminal device independently determines the system information of the cell a and the cell C, and determines whether to re-request the ephemeris information of the cell B according to the identity of the ephemeris information of the cell B obtained from the same cell in sequence. For example, if the terminal device obtains the identifier of the ephemeris information of the cell B from the system information of the cell a last time as 2, and the identifier of the ephemeris information of the cell B obtained from the system information of the cell a this time as 3, the terminal device considers that the ephemeris information of the cell B has changed, and needs to re-request the ephemeris information of the cell B. For another example, if the terminal device obtains the identifier of the ephemeris information of the cell B from the system information of the cell C last time to be 3, and the identifier of the ephemeris information of the cell B obtained from the system information of the cell C this time is 3, the terminal device considers that the ephemeris information of the cell B has not changed, and does not need to request the ephemeris information of the cell B again.

For the independent judgment, if the terminal equipment acquires the identification of the ephemeris information of the cell B from the system information of the cell A and acquires the identification of the ephemeris information of the cell B from the system information of the cell C, the terminal equipment cannot determine whether the ephemeris information of the cell B changes according to whether the two identifications are identical or not. In this case, the terminal device cannot determine whether or not the ephemeris information stored by itself is the latest, and therefore, it is necessary to re-request the ephemeris information of cell B.

Fig. 6 is a schematic structural diagram of a communication device according to 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 a module, a unit, a chip module, or the like in the terminal device.

As shown in fig. 6, the communication apparatus 600 provided in this embodiment may include: a receiving module 601 and a transmitting module 602. Wherein,,

a receiving module 601, configured to receive a first identifier from a first network device, where the first identifier is used to identify ephemeris information of a first cell, where the ephemeris information of the first cell is used to indicate an operational orbit and a location of a first satellite, and the first cell is a neighboring cell of a serving cell of a terminal device;

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

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

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

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

In a possible implementation manner, the receiving module 601 is further configured to: an ephemeris information acquisition notification is received from the first network device, the ephemeris information acquisition notification indicating an acquisition occasion of the ephemeris information of the first cell.

In a possible implementation manner, the receiving module 601 is specifically configured to: system information is received from the first network device, the system information including the first identification.

The communication device provided in this embodiment may be used to execute the communication method executed by the terminal device in any of the foregoing method embodiments, and its implementation principle and technical effects are similar, and will not be described herein.

Fig. 7 is a schematic structural diagram of another communication device according to 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 a module, a unit, a chip module, or the like 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 transmitting module 702. Wherein,,

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

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

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

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

In a possible implementation manner, the processing module 701 is further configured to: and determining the sending time of the ephemeris information of the first cell according to the position information of the terminal equipment.

In a possible implementation manner, the sending module 702 is further configured to: and sending an ephemeris information acquisition notice to the terminal equipment, wherein the ephemeris information acquisition notice is used for indicating the acquisition time of the ephemeris information of the first cell.

In a possible implementation manner, the sending module 702 is further configured to: and sending ephemeris broadcasting opportunity information to the second network equipment, wherein the ephemeris broadcasting opportunity information is used for indicating the broadcasting opportunity of the ephemeris information of the first cell.

In a possible implementation manner, the processing module 701 is further configured to: and determining the broadcasting time of the ephemeris information of the first cell according to the position information of the terminal equipment.

In a possible implementation manner, the sending module 702 is further configured to: and sending the position information of the terminal equipment to the second network equipment.

In a possible implementation manner, the sending module 702 is specifically configured to: and transmitting system information, wherein the system information comprises the first identification.

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

In a possible implementation manner, the sending module 702 is further configured to: and sending an acquisition request of the ephemeris information of the first cell to the second network equipment.

The communication device provided in this embodiment may be used to execute the communication method executed by the first network device in any of the foregoing method embodiments, and its implementation principle and technical effects are similar, and are not described herein.

Fig. 8 is a schematic structural diagram of another communication device according to 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, a unit, a chip module, or the like in the second network device.

As shown in fig. 8, a communication apparatus 800 provided in this embodiment includes: a processing module 801 and a transmitting module 802.

The processing module 801 is configured to determine ephemeris information of a first cell, where the ephemeris information of the first cell is used to indicate an orbit and a location of a first satellite, and the first cell is a cell of the second network device.

A sending module 802, configured to send ephemeris information of the first cell to a first network device.

In a possible implementation manner, as shown in fig. 8, the communication apparatus 800 provided in this embodiment may further include a receiving module 803, where the receiving module 803 is configured to: an acquisition request for ephemeris information of the first cell from the first network device is received.

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

In a possible implementation manner, the receiving module 803 is configured to: receiving location information of a terminal device from a first network device; the processing module 801 is configured to: and determining the broadcasting time of the ephemeris information of the first cell according to the position information of the terminal equipment.

In one possible implementation, the sending module 802 is specifically configured to: and sending the ephemeris information of the first cell to terminal equipment according to the broadcasting time of the ephemeris information of the first cell.

The communication device provided in this embodiment may be used to execute the communication method executed by the second network device in any of the foregoing method embodiments, and its implementation principle and technical effects are similar, and are not described herein.

Fig. 9 is a schematic structural diagram of still another communication device according to 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, the communication apparatus 900 provided in this embodiment includes: a transceiver 901, a memory 902, a processor 903. The transceiver 901 may include: a transmitter and/or a receiver. The transmitter may also be referred to as a transmitter, transmit port, transmit interface, or the like, and the receiver may also be referred to as a receiver, receive port, receive interface, or the like. Illustratively, the transceiver 901, the memory 902, and the processor 903 are interconnected by a bus 904.

The memory 902 is used to store a computer program.

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

The receiver in the transceiver 901 may implement the receiving function of the terminal device/network device in the foregoing method embodiment. The transmitter in the transceiver 901 may implement the transmitting function of the terminal device/network device in the above-described method embodiment. The processor 903 may be configured to perform the processing functions of the terminal device/network device in the above-described method embodiments.

The communication apparatus provided in this embodiment may be used to implement a communication method performed by a terminal device in any of the above method embodiments, or a communication method performed by a first network device, or a communication method performed by a second network device, where implementation principles and technical effects are similar, and are not described herein.

The embodiment of the present application further provides a computer readable storage medium, where the computer readable storage medium stores a computer program, where when the computer program is executed by a computer, the communication method executed by the terminal device in any of the above method embodiments is implemented, or the communication method executed by the first network device, or the communication method executed by the second network device, where the implementation principle and technical effects are similar, and are not described herein again.

The embodiment of the application also provides a communication chip, which comprises: the system comprises a memory, a processor and hardware system resources, wherein the memory stores a computer program, and the processor runs the computer program to realize a communication method executed by the terminal device in any method embodiment, or a communication method executed by the first network device, or a communication method executed by the second network device, so that the implementation principle and technical effects are similar, and are not repeated herein.

The embodiment of the present application further provides a computer program product, which includes a computer program, where the computer program when executed by a computer implements a communication method executed by a terminal device in any of the above method embodiments, or a communication method executed by a first network device, or a communication method executed by a second network device, and the implementation principle and technical effects of the implementation are similar, and are not repeated herein.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the modules is merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple modules may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or modules, which may be in electrical, mechanical, or other forms.

The modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical units, may be located in one place, or may be distributed over multiple network units. Some or all of the modules may 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 in one processing unit, or each module may exist alone physically, or two or more modules may be integrated in one unit. The units formed by the modules can be realized in a form of hardware or a form of hardware and software functional units.

The integrated modules, which are implemented in the form of software functional modules, may be stored in a computer readable storage medium. The software functional modules described above are stored in a storage medium and include instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform some steps of the methods described in the embodiments of the present application.

It is understood that the processor may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in a processor for execution.

The memory may comprise a high-speed RAM memory, and may further comprise a non-volatile memory NVM, such as at least one magnetic disk memory, and may also be a U-disk, a removable hard disk, a read-only memory, a magnetic disk or optical disk, etc.

The bus may be an industry standard architecture (Industry Standard Architecture, ISA) bus, an external device interconnect (Peripheral Component, PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, among others. The buses may be divided into address buses, data buses, control buses, etc. For ease of illustration, the buses in the drawings of the present application are not limited to only one bus or one type of bus.

The storage medium may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic 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. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an application specific integrated circuit (Application Specific Integrated Circuits, ASIC). It is also possible that the processor and the storage medium reside as discrete components in an electronic device or a master device.

Those of ordinary skill in the art will appreciate that: all or part of the steps for implementing the method embodiments described above may be performed by hardware associated with program instructions. The foregoing program may be stored in a computer readable storage medium. The program, when executed, performs steps including the method embodiments described above; and the aforementioned storage medium includes: various media that can store program code, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method of communication, comprising:

2. The method according to claim 1, wherein the method further comprises:

the terminal device receives ephemeris information of the first cell.

3. The method of claim 2, wherein the terminal device receiving ephemeris information for the first cell comprises:

4. The method of claim 2, wherein the terminal device receiving ephemeris information for the first cell comprises:

5. The method according to claim 4, wherein the method further comprises:

6. The method according to any of claims 1 to 5, wherein the terminal device receives the first identification from the first network device, comprising:

7. The method of claim 6, wherein the system information further comprises resource indication information indicating resources for the request message transmission.

8. A method of communication, comprising:

the first network device sends the first identification.

9. The method of claim 8, wherein the method further comprises:

10. The method according to claim 9, wherein the method further comprises:

11. The method according to claim 10, wherein the method further comprises:

12. The method according to claim 9, wherein the method further comprises:

13. The method according to claim 12, wherein the method further comprises:

14. The method of claim 13, wherein the method further comprises:

15. The method according to claim 12, wherein the method further comprises:

16. The method according to any of claims 9 to 15, wherein the first network device transmitting the first identification comprises:

17. The method of claim 16, wherein the system information further comprises: and resource indication information indicating resources for transmission of the request message.

18. The method according to any one of claims 8 to 17, further comprising:

19. The method of claim 18, wherein the method further comprises:

20. A method of communication, comprising:

21. The method of claim 20, wherein the method further comprises:

22. The method according to claim 20 or 21, characterized in that the method further comprises:

23. The method according to claim 20 or 21, characterized in that the method further comprises:

24. The method according to claim 22 or 23, characterized in that the method further comprises:

25. A communication device, comprising:

26. A communication device, comprising:

And the sending module is used for sending the first identification.

27. A communication device, comprising:

28. A communication device, comprising: a processor, and a memory communicatively coupled to the processor;

the memory stores a computer program;

the processor executes the computer program stored by the memory to implement the method of any one of claims 1 to 7, or to implement the method of any one of claims 8 to 19, or to implement the method of any one of claims 20 to 24.

29. A computer readable storage medium, characterized in that the computer readable storage medium has stored therein a computer program which, when executed by a computer, implements the method of any one of claims 1 to 7, or implements the method of any one of claims 8 to 19, or implements the method of any one of claims 20 to 24.