WO2021072722A1 - Communication method and apparatus - Google Patents

Abstract

A communication method and apparatus. The method comprises: a terminal device generates first information, wherein the first information is information used for indicating a first region in a serving cell of the terminal device, the serving cell comprises at least two regions, and the serving cell is a cell of a first network device; the terminal device transmits the first information to a second network device. Therefore, the terminal device can generate information every time a region change occurs, and transmits multiple pieces of information to the second network device, and the second network device can determine the motion trajectory of the terminal device on the basis of the multiple pieces of information transmitted by the terminal device.

Description

Communication method and device Technical field

This application relates to the field of communication technology, and in particular to a communication method and device.

Background technique

User equipment history information (UE history information) includes information about the cell where the user equipment (UE) resides, and the network device may determine the historical trajectory of the UE based on the cell where the UE resides, thereby performing mobility optimization. Among them, the history information of the user equipment may be recorded on the UE side or on the network equipment side.

Since traditional terrestrial networks cannot provide seamless coverage for UEs, especially in places where base stations cannot be deployed such as the sea, desert, and air, non-terrestrial networks (NTN) are introduced into the 5G system. The base station function is deployed on the high-altitude platform or satellite to provide seamless coverage for the UE, and the high-altitude platform or satellite is less affected by natural disasters, which can improve the reliability of the 5G system.

However, the coverage area of the satellite cell is relatively large, much higher than the cell diameter of the traditional ground cell. Therefore, if the UE camps on a satellite cell, the camping time is generally longer, and network equipment, especially terrestrial network equipment, cannot determine the movement trajectory of the UE based on the historical information of the user equipment, and thus cannot perform mobility optimization. For example, for geostationary-earth (GEO) satellites, the cell diameter of a GEO satellite cell is generally 500 km, which is much higher than that of a traditional ground cell. If a UE camps on a GEO cell, the camping time is generally longer. Therefore, network equipment, especially terrestrial network equipment, cannot determine the movement track of the UE based on the historical information of the user equipment.

Summary of the invention

The embodiments of the present application provide a communication method and device to solve the problem that the network equipment cannot determine the motion track of the UE based on the historical information of the user equipment.

In a first aspect, an embodiment of the present application provides a communication method. The method includes: a terminal device generates first information, where the first information is information indicating a first area in a serving cell of the terminal device, and The serving cell includes at least two areas; the serving cell is a cell under the first network device; the terminal device sends the first information to the second network device.

Using the above method, the terminal device can generate information and send multiple pieces of information to the second network device every time an area change occurs, and the second network device can determine the movement track of the terminal device based on the multiple pieces of information sent by the terminal device.

In a possible design, the method further includes: the terminal device receives first configuration information from the first network device, the first configuration information indicating information of the at least two areas; the terminal device It is determined based on the first configuration information that the terminal device is located in the first area.

With the above design, the terminal device can determine the area where the terminal device is located based on the first configuration information sent by the first network device.

In a possible design, the terminal device determines that the terminal device is located in the first area based on the location information of the terminal device and the first configuration information.

With the above design, the terminal device can determine the area where the terminal device is located based on the first configuration information and location information sent by the first network device.

In a possible design, the first information includes the serving cell information and the first area information.

With the above design, the first information can accurately indicate the first area.

In a possible design, the first information further includes at least one of the following information: type information of the serving cell, network information of the serving cell, identification of the beam where the terminal device is located, and Time information of the terminal device in the serving cell, and time information of the terminal device in the first area.

With the above design, the first information includes a variety of information, which can perfectly reflect the historical information of the terminal device.

In a second aspect, an embodiment of the present application provides a communication method. The method includes: a first network device acquires first information, where the first information is information used to indicate a first area in a serving cell of a terminal device, and The serving cell includes at least two areas; the serving cell is a cell under the first network device; the first network device sends the first information to the second network device.

Using the above method, the first network device can obtain information and send multiple pieces of information to the second network device every time the terminal device changes area, and the second network device can determine the terminal based on the multiple pieces of information sent by the first network device. The trajectory of the device.

In a possible design, the method further includes: the first network device generates first configuration information, the first configuration information indicates the information of the at least two areas; the first network device sends the information to the terminal device Sending the first configuration information.

With the above design, the first network device notifies the terminal device of the first configuration information.

In a possible design, the method further includes: the network device determines that the terminal device is located in the first area according to the first configuration information.

With the above design, the first network device can determine the area where the terminal device is located.

In a possible design, acquiring the first information by the first network device includes: the first network device receives the first information from the terminal device; or, the first network device generates the First information.

With the above design, the first network device can obtain the first information in different ways.

In a possible design, the first information includes the serving cell information and the first area information.

With the above design, the first information can accurately indicate the first area.

In a possible design, the first information further includes at least one of the following information: type information of the serving cell, network information of the serving cell, identification of the beam where the terminal device is located, and The time information of the terminal device in the serving cell, the time information of the terminal device in the first area, the first handover reason value, and the first handover reason value instructs the terminal device to switch from another cell to all The reason for the service cell is satellite movement or cell movement.

With the above design, the first information includes a variety of information, which can perfectly reflect the historical information of the terminal device.

In a possible design, the method further includes: the first network device sends the first configuration information to the second network device.

With the above design, the first network device can notify the second network device of the first configuration information.

In a possible design, the method further includes: the first network device receives second configuration information from the second network device, and the second configuration information is used to determine whether the second network device downloads Information about at least two areas under each cell in at least one cell.

With the above design, the first network device can receive the second configuration information sent by the second network device.

In a third aspect, an embodiment of the present application provides a communication method, the method includes: a second network device receives first information from a first network device or a terminal device; the first information is used to indicate the terminal device's Information about the first area in the serving cell, the serving cell includes at least two areas; the serving cell is a cell under the first network device; the second network device determines the location based on the first information The trajectory of the terminal equipment.

Using the above method, the second network device can determine the movement track of the terminal device based on multiple pieces of information sent by the first network device or the terminal device.

In a possible design, the first information includes the serving cell information and the first area information.

With the above design, the first information can accurately indicate the first area.

In a possible design, the first information further includes at least one of the following information: type information of the serving cell, network information of the serving cell, identification of the beam where the terminal device is located, and Time information of the terminal device in the serving cell, time information of the terminal device in the first area, and a first handover cause value, wherein the first handover cause value indicates that the terminal device is handed over from another cell The reason for reaching the serving cell is satellite movement or cell movement.

With the above design, the first information includes a variety of information, which can perfectly reflect the historical information of the terminal device.

In a possible design, the second network device receives first configuration information from the first network device, and the first configuration information is used to indicate information about the at least two areas.

With the above design, the first network device can notify the second network device of the first configuration information.

In a possible design, the method further includes: the second network device sends second configuration information to the first network device, and the second configuration information is used to determine Information of at least two areas under each cell in at least one cell.

With the above design, the first network device can receive the second configuration information sent by the second network device.

In a fourth aspect, an embodiment of the present application provides a communication device, such as a first communication device. The device may be a terminal device or a chip in the terminal device. The device may include a processing unit, a sending unit, and a receiving unit. It should be understood that the sending unit and the receiving unit here may also be a transceiving unit. When the device is a terminal device, the processing unit may be a processor, the sending unit and the receiving unit may be transceivers; the terminal device may also include a storage unit, and the storage unit may be a memory; the storage unit is used to store instructions , The processing unit executes the instructions stored in the storage unit, so that the terminal device executes the first aspect or any one of the possible design methods in the first aspect. When the device is a chip in a terminal device, the processing unit may be a processor, and the sending unit and receiving unit may be input/output interfaces, pins or circuits, etc.; the processing unit executes the instructions stored in the storage unit to Make the chip execute the first aspect or any one of the possible design methods in the first aspect. The storage unit is used to store instructions. The storage unit can be a storage unit in the chip (for example, a register, a cache, etc.), or a storage unit in the terminal device located outside the chip (for example, a read-only memory, Random access memory, etc.).

In a fifth aspect, an embodiment of the present application provides a communication device. The device may be a first network device or a chip in the first network device. The device may include a processing unit, a sending unit, and a receiving unit. It should be understood that the sending unit and the receiving unit here may also be a transceiving unit. When the device is a network device, the processing unit may be a processor, the sending unit and the receiving unit may be transceivers; the network device may also include a storage unit, and the storage unit may be a memory; the storage unit is used to store instructions , The processing unit executes the instructions stored in the storage unit, so that the network device executes the second aspect or any one of the possible design methods in the second aspect. When the device is a chip in the first network device, the processing unit may be a processor, the sending unit and the receiving unit may be input/output interfaces, pins or circuits, etc.; the processing unit executes instructions stored in the storage unit , So that the chip executes the second aspect or any one of the possible design methods of the second aspect. The storage unit is used to store instructions, and the storage unit can be a storage unit (for example, a register, a cache, etc.) in the chip, or a storage unit (for example, read-only) located outside the chip in the first network device. Memory, random access memory, etc.).

In a sixth aspect, an embodiment of the present application provides a communication device. The device may be a second network device or a chip in the second network device. The device may include a processing unit, a sending unit, and a receiving unit. It should be understood that the sending unit and the receiving unit here may also be a transceiving unit. When the device is a network device, the processing unit may be a processor, the sending unit and the receiving unit may be transceivers; the network device may also include a storage unit, and the storage unit may be a memory; the storage unit is used to store instructions , The processing unit executes the instructions stored in the storage unit, so that the network device executes the third aspect or any one of the possible design methods in the third aspect. When the device is a chip in the second network device, the processing unit may be a processor, the sending unit and the receiving unit may be input/output interfaces, pins or circuits, etc.; the processing unit executes instructions stored in the storage unit , So that the chip executes the second aspect or any one of the possible design methods of the second aspect. The storage unit is used to store instructions. The storage unit can be a storage unit (for example, a register, a cache, etc.) in the chip, or a storage unit (for example, a read-only memory) located outside the chip in the second network device. Memory, random access memory, etc.).

In a seventh aspect, the embodiments of the present application also provide a computer-readable storage medium, the computer-readable storage medium stores a computer program, and when the computer program runs on a computer, the computer executes the first to third aspects described above. Methods.

In an eighth aspect, the embodiments of the present application also provide a computer program product containing a program, which when running on a computer, causes the computer to execute the methods of the first to third aspects.

Description of the drawings

Figure 1 is a schematic diagram of the mapping method of ground stationary cells in this application;

Figure 2 is a schematic diagram of the mapping method of ground mobile cells in this application;

Figure 3 is one of the schematic diagrams of the satellite communication architecture in this application;

Figure 4 is the second schematic diagram of the satellite communication architecture in this application;

Figure 5 is the third schematic diagram of the satellite communication architecture in this application;

Figure 6 is the fourth schematic diagram of the satellite communication architecture in this application;

Figure 7 is a schematic diagram of the transition between RRC states in this application;

FIG. 8 is a flowchart of determining the area where the terminal device is located in the serving cell in this application;

Figure 9(a), Figure 9(b) and Figure 9(c) are schematic diagrams of multiple areas included in the cell in this application;

Figure 10 is one of the flowcharts of the communication method in this application;

Figure 11 is the second flow chart of the communication method in this application;

Figure 12 is the third flow chart of the communication method in this application;

Figure 13 is the fourth flow chart of the communication method in this application;

Figure 14 is one of the schematic diagrams of the device structure in this application;

Figure 15 is the second schematic diagram of the device structure in this application.

Detailed ways

The embodiments of the present application will be described below in conjunction with the drawings.

The network elements involved in the embodiments of the present application include network equipment and terminal equipment.

Among them, a network device is an entity used to transmit or receive signals on the network side, such as a generation NodeB (gNodeB). The network device may be a device used to communicate with mobile devices. Network equipment can be APs in wireless local area networks (WLAN), base transceivers in global system for mobile communications (GSM) or code division multiple access (CDMA). station, BTS), it can also be a base station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), or an evolved base station (evolutional) in Long Term Evolution (LTE) Node B, eNB or eNodeB), or relay station or access point or integrated access and backhaul (IAB), or vehicle-mounted equipment, wearable equipment, and network equipment in the future 5G network or public Network equipment in a public land mobile network (PLMN) network, or gNodeB in an NR system, etc. In addition, in the embodiment of the present application, the network device provides services for the cell, and the terminal device communicates with the network device through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell. The network device in the embodiment of the present application may refer to a centralized unit (CU) or a distributed unit (DU), or the network device may also be composed of a CU and a DU. Wherein, the CU and the DU may be physically separated or deployed together, which is not specifically limited in the embodiment of the present application. One CU can be connected to one DU, or multiple DUs can share one CU, which can save costs and facilitate network expansion. CU and DU segmentation can be segmented according to the protocol stack. One possible way is to combine radio resource control (Radio Resource Control, RRC), service data adaptation protocol stack (Service Data Adaptation Protocol, SDAP), and packet data aggregation The Protocol (Packet Data Convergence Protocol, PDCP) layer is deployed in the CU, and the rest of the Radio Link Control (RLC) layer, Media Access Control (MAC) layer, and physical layer are deployed in the DU. The present invention does not completely limit the above-mentioned protocol stack segmentation method, and other segmentation methods are also possible. The CU and DU are connected through the F1 interface. CU stands for gNB to connect to the core network through the Ng interface. The network device in the embodiment of the present application may refer to a centralized unit control plane (CU-CP) node or a centralized unit user plane (CU-UP) node, or the network device may also be CU-CP and CU-UP. Among them, CU-CP is responsible for the control plane function, mainly including RRC and PDCP-C. PDCP-C is mainly responsible for encryption and decryption of control plane data, integrity protection, data transmission, etc. CU-UP is responsible for user plane functions, mainly including SDAP and PDCP-U. SDAP is mainly responsible for processing the data of the core network and mapping the flow to the bearer. PDCP-U is mainly responsible for data encryption and decryption, integrity protection, header compression, serial number maintenance, data transmission, etc. Among them, CU-CP and CU-UP are connected through the E1 interface. CU-CP represents that gNB is connected to the core network through the Ng interface. Connect with DU through F1-C (control plane). CU-UP is connected to DU through F1-U (user plane). Of course, another possible implementation is that PDCP-C is also in CU-UP. The access network device mentioned in the embodiment of this application may be a device including a CU, or a DU, or a device including a CU and a DU, or a control plane CU node (CU-CP node) and a user plane CU node (CU-UP node) And the equipment of the DU node. In addition, in other possible situations, the network device may be another device that provides wireless communication functions for the terminal device. The embodiment of the present application does not limit the specific technology and specific device form adopted by the network device. For ease of description, in the embodiments of the present application, a device that provides a wireless communication function for a terminal device is referred to as a network device.

Among them, the terminal device may be a wireless terminal device that can receive network device scheduling and instruction information, and the wireless terminal device may be a device that provides voice and/or data connectivity to the user, or a handheld device with wireless connection function, or connects to Other processing equipment for wireless modems. A wireless terminal device can communicate with one or more core networks or the Internet via a wireless access network (e.g., radio access network, RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or called a "cellular" phone). , Mobile phones), computers, and data cards, for example, may be portable, pocket-sized, handheld, computer-built or vehicle-mounted mobile devices, and they exchange language and/or data with the wireless access network. For example, personal communications service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), tablets Computers (Pad), computers with wireless transceiver functions and other equipment. Wireless terminal equipment can also be called system, subscriber unit, subscriber station, mobile station, mobile station (MS), remote station (remote station), access point ( access point (AP), remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), subscriber station (SS), user terminal equipment (customer premises equipment, CPE), terminal (terminal), user equipment (user equipment, UE), mobile terminal (mobile terminal, MT), etc. The wireless terminal device may also be a wearable device and a next-generation communication system, for example, a terminal device in a 5G network or a terminal device in a future evolved PLMN network, a terminal device in a new radio (NR) communication system, and so on.

In addition, the embodiments of the present application may also be applicable to other future-oriented communication technologies. The network architecture and business scenarios described in this application are intended to explain the technical solutions of this application more clearly, and do not constitute a limitation on the technical solutions provided by this application. Those of ordinary skill in the art will know that with the evolution of the network architecture and new business scenarios The technical solutions provided in this application are equally applicable to similar technical problems.

The embodiments of the present application may be applied to the fourth generation mobile communication system (the fourth generation, 4G) system, 5G system, NTN system, or future mobile communication system.

As a possible application scenario, the NTN system may include a satellite system. According to the height of the satellite, that is, the height of the satellite orbit, the satellite system can be divided into highly elliptical orbiting (HEO) satellites, geostationary earth orbit (GEO) satellites, medium earth orbit (MEO) satellites and Low-earth (low-earth orbit, LEO) satellites. In addition, the NTN system may also include a high altitude platform (HAPS) communication system.

As an example, a brief description of the mechanism by which GEO satellites and LEO satellites provide coverage cells is as follows.

1. GEO satellite: also known as a geostationary satellite. The speed of the satellite is the same as that of the earth's rotation system, so the satellite remains stationary relative to the ground. Correspondingly, the cell of the GEO satellite is also stationary. The coverage area of the GEO satellite cell is relatively large, and the general cell diameter is 500km.

As shown in Figure 1, the mapping method of the ground stationary cell means that the cell location is not moving on the ground, and the moving satellite adjusts its own beam to form these cells. For example, at time T1: cell 1 and cell 2 are covered by the beam of gNB1, and cell 3 and cell 4 are covered by the beam of gNB2; at time T2: although both gNB1 and gNB2 move to the left, they can still adjust their beams to ensure the cell 1. Coverage of cell 2, cell 3, and cell 4; time T3: Compared to time T1, gNB1 and gNB2 have moved far enough, gNB1 cannot adjust the beam to provide coverage for cell 2, and gNB2 cannot adjust the beam to Cell 4 provides coverage. At this time, gNB2 can provide coverage for cell 2, and gNB3 can provide coverage for cell 4.

2. LEO satellite: The satellite moves relatively fast relative to the ground, about 7Km/s, so the coverage area served by the LEO satellite also moves.

As shown in Figure 2, the mapping method of the ground mobile cell means that the moving satellite does not dynamically adjust its beam direction, and the beam generated by the moving satellite moves on the ground with the movement of the satellite. For example: T1 time: the area shown in Figure 2 is covered by cell 1, cell 2, cell 3, and cell 4 of gNB1 and gNB2, and at time T3, the area is covered by gNB1, gNB2, gNB3 cell 2, and cell 3. Cell 4 and Cell 5 cover.

In the NTN system, the satellite communication architecture is divided into two categories. One is the transparent architecture. At this time, the satellite is only used as a relay or amplifier, and can be used for radio frequency filtering and amplification to regenerate the signal. As shown in Figure 3; the second is the regenerative architecture. At this time, the satellite can be used as gNB (as shown in Figure 4 and Figure 5), distributed unit (DU) (as shown in Figure 6), relay, The relay here is different from the relay in the first category. At this time, it is no longer a simple relay, but also has a signal processing function, similar to an integrated access and backhaul (IAB) node or other relay nodes. Among them, when the satellite is used as a gNB, DU, IAB or other relay node, its function is similar to a normal gNB, DU, IAB or other relay node.

The NTN communication system provides seamless coverage for terminal equipment by deploying the functions of the access network equipment or part of the access network equipment on non-ground equipment (such as high-altitude platforms or satellites, etc.). Non-ground equipment is more affected by natural disasters. Small, can improve the reliability of the communication system. In order to facilitate the description and understanding of the solutions of the embodiments of the present application, the following description of the present application will take an NTN communication system in which network equipment is deployed on a satellite as an example. In addition, for the convenience of description, this application will replace "satellite" with "satellite" later in this application. That is, the communication between the terminal device and the satellite referred to later in this application actually refers to the communication between the terminal device and the network device on the satellite. Here is a unified description, and will not be repeated in the follow-up.

In the 5G system, the radio resource control (RRC) state of the UE includes the connected state (RRC_CONNECTED), the deactivated state (RRC_INACTIVE), and the idle state (RRC_IDLE). The transition between the three states is shown in Figure 7. . Exemplarily, when the UE is in the RRC_CONNECTED state, the UE has established links with the network equipment and the core network equipment, and when data arrives at the network, it can be directly transmitted to the UE. When the UE is in the RRC_INACTIVE state, it means that the UE has previously established links with the network equipment and core network equipment, but the link from the UE to the network equipment is released. Although the link is released, the UE and the network equipment save Given the context of the UE, when there is data to be transmitted, the network device can quickly restore this link; generally, the source network device (or anchor network device) can be understood as a network device that stores the context of the UE. And/or, the source network device may be a network device that generates a configuration for the UE to enter the RRC_INACTIVE state. When the UE is in the RRC_IDLE state, there is no link between the UE and the network device and the core network device. When there is data to be transmitted, a link between the UE and the network device and the core network device needs to be established.

In the prior art, the user equipment history information recorded on the UE side may include information about all the cells accessed by the UE and the residence time information of each cell. The cell here may include at least one of a cell where the UE is camped in an idle state, a cell where the UE is camped in a deactivated state, or a cell where the UE is connected in a connected state. Since the network device side can only perceive the UE in the connected state, the user equipment history information recorded on the network device side may include cell information and corresponding residence time information when the UE is in the connected state. In addition, the user equipment history information recorded on the network equipment side may also include cell type, handover reason, and so on. The cell information may include at least one of a cell global identifier (CGI) of the cell, a physical cell identifier (PCI), and a cell frequency. Based on this, when the satellite cell has a large coverage area, the network equipment cannot determine the UE's motion trajectory based on the historical information of the user equipment, resulting in the inability to perform mobility optimization. The embodiments of the present application provide the following embodiments to solve the above-mentioned problems .

Example 1:

The embodiment of the present application provides a method for determining the area where the terminal device is located in the serving cell, so as to realize the determination of the area where the terminal device is located in the serving cell. As shown in Figure 8, the method includes:

S801: The first network device determines at least two areas included in the first cell.

In a possible implementation manner, at least two areas constitute the coverage area of the first cell, that is, the coverage area of the first cell may include at least two areas. As shown in Figure 9(a), the solid line represents the coverage area of the first cell, and the dashed line represents the boundary of the area included in the first cell. The first cell includes 4 areas, area 1, area 2, area 3, and area 4. .

In another possible implementation manner, the at least two areas may include the coverage area of the first cell, that is, the area range of the at least two areas may be larger than the coverage area of the first cell. As shown in Figure 9(b), the area formed by the solid line represents the coverage area of the first cell, and the four areas formed by the dashed line represent the four areas of area 1, area 2, area 3, and area 4. The 4 areas The area range of is larger than the coverage area of the first cell.

It should be noted that Figures 9(a) and 9(b) are only schematic diagrams of multiple areas included in the first cell. In practical applications, the multiple areas included in the first cell may also have other forms, for example, the first cell The cell includes multiple circular areas, etc., as shown in FIG. 9(c), which is not specifically limited in the embodiment of the present application.

The first cell is any one of the one or more cells under the first network device. The first cell can be an NTN cell or a TN cell. At least two areas are logically virtual areas, and the sizes of at least two areas may be the same or different. The area range of each of the at least two areas may not overlap with other areas, or there may be overlapping areas, but the area range of one area cannot completely cover the area range of the other area.

S802: The first network device sends configuration information to the terminal device. Correspondingly, the terminal device receives the configuration information from the first network device.

Wherein, the configuration information indicates the configuration information of the above at least two areas.

Among them, the terminal device resides in the first cell, so the first cell can be understood as the current serving cell of the terminal device.

Optionally, the first network device may send configuration information to all terminal devices camped in the first cell through a broadcast message; or, may separately send configuration information to terminal devices camped in the first cell through a unicast message; or , The configuration information can be sent to a group of terminal devices camped in the first cell through a multicast message, which is not specifically limited in the embodiment of the present application.

Optionally, the first network device may carry the configuration information in a system message and send it, or it may carry it in a dedicated RRC message and send it, which is not specifically limited in the embodiment of the present application.

Optionally, in different implementation manners of the embodiments of the present application, the content of the configuration information may also be different:

In a possible implementation manner, the configuration information may include: the coordinates of the center position of each of the at least two areas, and the area radius of each area; or, the configuration information may include: the center of each of the at least two areas Location coordinates, area radius of each area, area identification of each area.

For example, assuming that the first cell under the first network device includes 2 areas, and the configuration information includes the center position coordinates and area radius of each of the at least two areas, the configuration information may be {center position coordinates 1, area radius 1 }, {center position coordinates 2, area radius 2}; or, when the configuration information includes the center position coordinates, area radius, and area identifier of each of at least two areas, the configuration information can be {area 1, center position coordinates 1 , Area radius 1}, {area 2, center position coordinate 2, area radius 2}. Optionally, the configuration information can directly indicate the area identification of each area, for example, the configuration information is {area 1, center position coordinate 1, area radius 1}; or, it can also indirectly indicate the area identification of each area, exemplary , The order of the area in the configuration information is the area identifier of the area. For example, {center position coordinate 1, area radius 1} is the first area information in the configuration information, it can correspond to area 1, {center position coordinate 2. The area radius 2} is the second area information in the configuration information, which can correspond to area 2.

In a possible implementation manner, the configuration information may include: the coordinates of the center position of each area in the at least two areas, the area radius of each area, and the user-readable name of each area; or the configuration information may include: at least two areas The human-readable name of each of the regions. Among them, the user-readable name of each area can reflect the area scope of the area.

For example, suppose that the first cell under the first network device includes 2 areas, and the center position of the first area is the center of the circle, and the area radius of the first area is the Huangpu District of Shanghai. The user-readable name of this area can be Shanghai Huangpu District; taking the center of the second area as the center, and the area radius of the second area as the radius of the area is Shanghai Xuhui District, then users in the second area can The name can be Shanghai Xuhui District. Alternatively, the user-readable name of each area may reflect a certain location in that area. For example, if the first area is Shanghai Huangpu District, the user-readable name of the first area can be the name of a landmark building in Shanghai Huangpu District. It should be noted that when the first network device determines at least two areas, it needs to clarify the area range of each area (for example, the center position coordinates and area radius of each area), but in the configuration information, only at least two areas can be carried. The human-readable name of each area in the area.

It should be noted that the coordinates of the center position of each area are different, and the area radius of each area may be the same or different.

In another possible implementation manner, the configuration information may include the length and width of each of the at least two areas, the total number of areas in the direction of the longitude line, and the total number of areas in the direction of the latitude line. The total number of areas in the direction of the line of longitude is the total number of areas in the direction of the line of longitude corresponding to the coverage of the first cell, and the total number of areas in the direction of the line of latitude is the total number of areas in the direction of the latitude line corresponding to the coverage of the first cell. The product of the total number of regions in the direction of the longitude line and the total number of regions in the direction of the latitude line is the number of at least two regions in the above step S801. Optionally, the configuration information may also include the user-readable name of each area. For the description of the user-readable name, refer to the foregoing description, which is not repeated here.

Wherein, the length and width of the same sub-region in the multiple sub-regions may be the same or different. For example, for the sub-region 1 in the multiple sub-regions, the length and width may both be 200, or the length and width may be 200 and 200, respectively. 100; The length of different sub-regions can be the same or different; the width of different sub-regions can be the same or different. For example, for sub-region 1 and sub-region 2 in multiple sub-regions, the length and width of sub-region 1 can be 200 respectively. And 100, the length and width of sub-region 2 may be 400 and 300, respectively; or the length and width of sub-region 1 may be 200 and 100, respectively, and the length and width of sub-region 2 are also 200 and 100, respectively. The embodiment of the present application There is no specific restriction on this.

S803: The terminal device determines the first area according to the configuration information.

Wherein, the first area is an area where the terminal device is currently located in the above at least two areas.

In a possible implementation manner, if the terminal device has a positioning function, the terminal device determines the first area according to the configuration information, which may be: the terminal device obtains the location information of the terminal device, and determines it according to the location information and configuration information of the terminal device The first area.

Optionally, in this possible implementation manner, according to different configuration information, the terminal device determines the first area in a different manner according to the location information and configuration information of the terminal device. Exemplarily, there can be the following two ways:

Manner 1: The configuration information includes the coordinates of the center position of each of the at least two areas and the area radius of each area. In addition, the configuration information may also include the area identification of each area or the user-readable name of each area at the same time.

In this manner, the location information of the terminal device acquired by the terminal device may be the location coordinates of the geographic location where the terminal device is currently located. The terminal device determines the first area according to the location information and configuration information of the terminal device. Exemplarily, the terminal device separately calculates the linear distance between the terminal device and each area, and then compares each linear distance with the area radius of the corresponding area; if a certain linear distance is less than the area radius of the corresponding area, it is determined that the area is The first area. The linear distance between the terminal device and each area is the linear distance between the location coordinates of the geographic location where the terminal device is currently located and the center location coordinates of each area.

Optionally, if there are multiple linear distances smaller than the area radius of the corresponding area, the area corresponding to the minimum difference between the multiple linear distances and the area radius of the corresponding area is determined as the first area.

For example, suppose that the first cell under the first network device includes 2 areas, and the configuration information includes {central location coordinate 1, area radius 1}, {central location coordinate 2, area radius 2}, and the current geographic location of the terminal device The position coordinate of is the position coordinate 0, the linear distance between the center position coordinate 1 and the position coordinate 0 calculated by the terminal device is the distance 1, and the linear distance between the center position coordinate 2 and the position coordinate 0 is the distance 2, if the distance 1 is greater than Area radius 1, distance 2 is less than area radius 2, the terminal device determines the area corresponding to {center position coordinate 2, area radius 2} as the first area; or, if distance 1 is less than area radius 1, distance 2 is greater than area radius 2. , The terminal device determines the area corresponding to {center position coordinate 1, area radius 1} as the first area. If distance 1 is less than area radius 1, and distance 2 is also less than area radius 2, the terminal device calculates the difference between distance 1 and area radius 1, and the difference between distance 2 and area radius 2, if the difference between distance 1 and area radius 1 is less than distance 2 If the difference is between the area radius and the area radius 2, the terminal device determines the area corresponding to {center position coordinate 1, area radius 1} as the first area.

Manner 2: The configuration information includes the length of each area, the width of each area, the total number of areas in the direction of the longitude line, and the total number of areas in the direction of the latitude line in the at least two areas.

Among them, in the embodiments of the present application, description is made by taking as an example that the lengths and widths of different regions in at least two regions are the same.

Optionally, the configuration information may also include the area identifier of each sub-area.

In the second manner, the location information of the terminal device acquired by the terminal device may be the location coordinates (x, y) of the geographic location where the terminal device is currently located. Where, x is the distance of the terminal device from the relative reference point of the position system adopted by the terminal device in the longitude direction, and y is the distance of the terminal device from the latitude direction of the relative reference point of the position system.

Optionally, the location system adopted by the terminal device may be, for example, the global positioning system (GPS), or may be the Beidou satellite system, or may be other positioning systems; the relative reference point of the location system may be based on different location systems. However, it may be (0, 0) or others, which is not specifically limited in the embodiment of the present application.

In the second mode: the terminal device determines the first area according to the location information and configuration information of the terminal device, which can be: the terminal device determines the terminal according to its distance in the longitude direction, the length of each area, and the total number of areas in the direction of the line of longitude. The location of the device in the longitude direction; determine the location of the terminal device in the latitude direction according to the distance in the latitude direction, the width of each area, and the total number of areas in the latitude direction; and then according to the location in the longitude direction and the latitude direction Determine the area identifier, and the area identified by the area identifier is the first area.

Optionally, the position of the terminal device in the longitude direction may satisfy the following formula (1):

The position of the terminal equipment in the latitude direction can satisfy the following formula (2):

The area identification can satisfy the following formula (3):

zone_id=y ₁ *Nx+x ₁ (3);

Where x is the distance of the terminal device from the relative reference point of the position system adopted by the terminal device in the longitude direction, y is the distance of the terminal device from the relative reference point of the position system in the latitude direction, L is the length of each area, W is the width of each area, Nx is the total number of areas in the direction of the longitude line, Ny is the total number of areas in the direction of the latitude line, x ₁ is the position of the terminal device in the longitude direction, and y ₁ is the position of the terminal device in the latitude direction. zone_id is the zone identification determined by the terminal equipment, the symbol

Means rounding down, and the symbol% means rounding down.

Exemplarily, assuming that the current geographic location coordinates of the terminal device are (500, 500), the total number of areas in the direction of the longitude line and the direction of the latitude line is 4 (that is, the first cell includes 16 areas), and the length of each area For example, if the width and width are both 200, the terminal device can determine x ₁ =2 according to the above formula (1), determine y ₁ =2 according to the above formula (2), and determine the area identifier as 10 according to the above formula (3), then the terminal device The area marked as 10 among the 16 areas is determined as the first area.

It should be understood that, based on the same idea, when the first network device obtains the location information of the terminal device, the first network device can determine the area where the terminal device is located in the serving cell based on the location information and configuration information of the terminal device. You can refer to the methods provided in the first and second modes above, and the repetition will not be repeated.

In another possible implementation manner, if the terminal device does not have a positioning function, and the configuration information includes the user-readable name of each of the at least two regions, the terminal device determines the first region according to the configuration information, which may be: The terminal device determines the area corresponding to the first user-readable name in the configuration information as the first area. The first user-readable name is a user-readable name corresponding to the current geographic location of the terminal device.

Optionally, for a terminal device that does not have a positioning function, the user can manually determine the current geographic location of the terminal device. For example, the user can carry the terminal device with him and determine the user's current geographic location as the current geographic location of the terminal device. . In addition, the terminal device can request a user-readable name corresponding to the current geographic location of the terminal device from the user through the human-computer interaction interface. For example, the terminal device can display the user-readable name of each of at least two areas on the human-computer interaction interface, and the user (manually) selects the user-readable name corresponding to the current geographic location of the terminal device from the multiple user-readable names name.

Among them, if the user-readable name of the area reflects the area range of the area, the user selects the user-readable name of the area corresponding to the current geographic location of the terminal device; if the user-readable name of the area reflects a certain location in the area, the user selects The user-readable name corresponding to the location closest to the current geographic location of the terminal device. After the user selects the user-readable name corresponding to the current geographic location, the terminal device determines the area corresponding to the user-readable name as the first area.

For example, the user-readable name of the area reflects the area range of the area. The first cell under the first network device includes 3 areas, and the user-readable name of each area is {Shanghai Huangpu District}, {Shanghai Xuhui District}, {Shanghai Pudong District}, the terminal device can display the user-readable names of 3 areas on the human-computer interaction interface. If the user determines that the terminal device is currently in Xuhui District, the user selects Shanghai Xuhui District through the human-computer interaction interface, and then, The terminal device determines the area corresponding to {Shanghai Xuhui District} as the first area.

For example, the user-readable name of an area reflects a certain location of the area, and the first cell under the first network device includes 3 areas, and the user-readable name of each area is {Landmark Building 1} and {Landmark Building 2}, {Iconic Building 3}, and Landmark Building 1, Landmark Building 2, and Landmark Building 3 belong to 3 areas respectively, then the terminal device can display the user-readable names of the 3 areas on the human-computer interaction interface If the user determines that the terminal device is currently the closest to the landmark building 1, the user selects the landmark building 1 through the human-computer interaction interface, and the terminal device determines the area corresponding to the {landmark building 1} as the first area.

Example 2:

As shown in FIG. 10, an embodiment of the present application provides a communication method, which includes:

S1001: The terminal device generates first information, where the first information is information used to indicate a first area in a serving cell of the terminal device, the serving cell includes at least two areas; the serving cell is a cell under the first network device.

Exemplarily, the first information may indicate historical information of the terminal device.

Exemplarily, the first information may include first cell information and first area information under the first cell. Optionally, the first information may also include time information of the terminal device in the first area, and/or time information of the terminal device in the first cell. Among them, the current serving cell of the terminal device may be referred to as the first cell. The first cell information may include at least one of CGI, PCI, or cell frequency of the first cell. The first area information may include at least one of an area identifier of the first area, a center position coordinate of the first area, and a user-readable name of the first area. The time information of the terminal device in the first area may include the time when the terminal device determines that the terminal device is in the first area, and/or may include the length of time the terminal device is in the first area; the time information of the terminal device in the first cell may include the terminal device The moment when the device camps on or reselects or switches to the first cell, and/or, may include the time length of the terminal device in the first cell. The time information of the terminal device in the first area and/or the time information of the terminal device in the first cell can assist the network device in determining the historical trajectory of the terminal device. Exemplarily, the network device may determine the absolute time for the terminal device to visit the first area and/or the first cell according to the moment when the terminal device resides in the first area and/or the first cell, and further according to the star orbit information of the satellite, it can be reversed. Push the trajectory of the terminal device.

In a possible design, the first information may further include first configuration information, and the first configuration information is used to indicate configuration information of at least two areas under the first cell. The first configuration information is the configuration information in the embodiment shown in FIG. 8, and the specific content will not be repeated here. It should be understood that the first configuration information may or may not be included in the first information. The embodiment of the present application is described by taking the terminal device including the first configuration information in the first information as an example.

The first information may also include type information of the first cell and/or network information of the first cell.

Wherein, the type information of the first cell may be used to indicate that the type of the first cell is NTN or TN. Or, the type information of the first cell is used to indicate that the type of the first cell is at least one of GEO, MEO, LEO, and HAPS. The above design can solve the problem that the cell type cannot be indicated as NTN in the prior art.

The network information of the first cell may be a private network identifier (non-public network identifier, NPN ID) or a public network identifier. Private networks can also be called non-public networks (NPN); private network identifiers can include standalone non-public network identifier (SNPN ID), closed access group identifier (CAG) ID); generally, the cell can indicate the private network type to which the cell belongs through the private network identifier sent. The public network identifier can be PLMN ID.

In a possible design, the first information may also include the identifier of the beam where the terminal device is located.

It should be noted that the terminal device may determine the area where the terminal device is located in the serving cell, that is, the first area, based on the embodiment shown in FIG. 8, and further generate the first information. In addition, the terminal device may generate the first information when the terminal device is in an active state, and may also generate the first information when the terminal device is in an idle state or a deactivated state.

S1002: The terminal device sends the first information to the second network device.

Optionally, the terminal device sends the first information to the first network device.

S1003: The second network device receives the first information from the terminal device, and the second network device determines the movement track of the terminal device based on the first information.

Using the above-mentioned embodiment, the terminal device can generate information and send multiple pieces of information to the second network device every time an area change occurs, and the second network device can determine the movement trajectory of the terminal device based on the multiple pieces of information sent by the terminal device. And then perform mobility optimization.

Example 3:

As shown in FIG. 11, an embodiment of the present application provides a communication method, which includes:

S1101: The first network device obtains first information, where the first information is information used to indicate the first area in the serving cell of the terminal device, the serving cell includes at least two areas; the serving cell is a cell under the first network device .

Exemplarily, the first information may indicate historical information of the terminal device.

For the specific content of the first information, refer to the description in S1001, which will not be repeated here.

Among them, the first network device can obtain the first information in the following two ways:

Manner 1: The first network device determines the first area based on the location information of the terminal device and the first configuration information, and generates the first information. For details, reference may be made to the terminal device in the embodiment shown in FIG. 8 to determine the content of the area where the terminal device is located in the serving cell based on the location information of the terminal device and the first configuration information, and the repetition is not repeated here.

In a possible design, the first information may further include a first handover reason value, and the first handover value indicates that the reason why the terminal device switches from another cell to the first cell is satellite movement or cell movement.

Manner 2: The first network device receives the first information from the terminal device.

It should be noted that the first network device may obtain the first information when the terminal device is in the activated state.

S1102: The first network device sends the first information to the second network device.

It is understandable that the first network device sending the first information to the second network device may be the first network device sending the first information to the second network device through the interface between the first network device and the second network device, or it may be The first network sends the first information to the second network device through the core network device, for example, the first network device sends the first information to the core network device, and the core network device sends the first information to the second network device.

The core network equipment can be a mobility management module (mobility management entity, MME), or can be an access mobility management function (Access and Mobility Management Function, AMF), or can be an AMF and a session management function (session management function, SMF), Or it can be other core network equipment.

S1103: The second network device receives the first information from the first network device, and the second network device determines the movement track of the terminal device based on the first information.

In addition, the first network device may also receive second configuration information from the second network device, where the second configuration information is used to determine information about at least two areas under each of the at least one cell under the second network device.

It is understandable that, as an implementation manner, the first network device and the second network device may exchange configuration information of the cells they manage during the interface establishment or configuration update process. It can include the following steps:

The first network device sends a first request message to the second network device, where the first request message carries configuration information of at least one cell under the first network device; optionally, the first request message may also carry the first network Configuration information of at least one neighboring cell of at least one cell under the device.

The first network device receives a first response message from the second network device, where the first response message carries configuration information of at least one cell under the second network device. Optionally, the first request message may also carry configuration information of at least one neighboring cell of at least one cell under the first network device. Optionally, the first response message may also carry configuration information of at least one neighboring cell of at least one cell under the second network device.

As an example, if the first request message is an interface establishment request message, the first response message is an interface establishment response message; if the first request message is a node configuration update request message, the first response message is a node configuration update request confirmation news.

As an example, both the first network device and the second network device are base stations. As another example, the first network device is a CU and the second network device is a DU; or the first network device is a DU and the second network device is a CU.

It should be noted that the process of exchanging the configuration information of the cells managed by the first network device and the second network device can be implemented as a separate solution.

Using the above-mentioned embodiment and the above-mentioned method, the first network device can obtain information and send multiple pieces of information to the second network device every time the terminal device changes area. The second network device can be based on the information sent by the first network device. Multiple pieces of information determine the motion trajectory of the terminal device, and then perform mobility optimization.

Example 4:

The embodiment of the present application provides a communication method, as shown in FIG. 12, to realize recording information for an NTN cell. It should be understood that this embodiment 4 can be used to record information for NTN cells, and can also be used for recording information for TN cells of different networks.

S1201: The terminal device or the first network device generates second information.

Exemplarily, the second information may indicate historical information of the terminal device.

In a possible design, the second information includes time information of the terminal device in the first cell. Among them, the current serving cell of the terminal device may be referred to as the first cell. The time information of the terminal device in the first cell may include the time when the terminal device resides or reselects or switches to the first cell, and/or may include the time length of the terminal device in the first cell. The time information of the terminal device in the first cell can assist the network device in determining the historical trajectory of the terminal device. Exemplarily, the network device may determine the absolute time for the terminal device to visit the first cell according to the moment when the terminal device resides in the first cell, and further infer the movement trajectory of the terminal device according to the satellite orbit information.

In a possible design, the second information may also include type information of the first cell and/or network information of the first cell.

Wherein, the type information of the first cell may be used to indicate that the type of the first cell is NTN or TN. Or, the type information of the first cell is used to indicate that the type of the first cell is at least one of GEO, MEO, LEO, and HAPS. The above design can solve the problem that the cell type cannot be indicated as NTN in the prior art.

The network information of the first cell may be NPN ID or public network identification. The private network can also be called NPN; the private network identification can include any one of SNPN ID and CAG ID; in general, a cell can indicate the private network type to which the cell belongs through the private network identification sent. The public network identifier can be PLMN ID.

In a possible design, the second information may also include the identifier of the beam where the terminal device is located.

In a possible design, the second information may further include a first handover reason value, and the first handover value indicates that the reason why the terminal device switches from another cell to the first cell is satellite movement or cell movement.

It should be understood that the second information may include one or a combination of information in the foregoing possible designs, which is not limited in the embodiment of the present application.

S1202: The terminal device or the first network device sends second information to the second network device.

Example 5:

An embodiment of the present application provides a communication method, as shown in FIG. 13, to determine the motion trajectory of a terminal device. The method includes:

S1301: The first network device sends the first threshold to the terminal device.

S1302: The terminal device receives the first threshold from the first network device, and the terminal device generates third information at the first moment. The terminal device determines the first location of the terminal device at the first moment; the third information may include the first moment information and the first location information.

S1303: The terminal device periodically detects the position of the terminal device, and if the terminal device determines at the second moment that the distance between the second position of the terminal device at the second moment and the first position is greater than or equal to the first threshold, the terminal device The second time information and the second location information are generated in the third information.

S1304: The terminal device sends the third information to the first network device or other network devices.

Exemplarily, the terminal device in FIG. 13 sends the third information to the second network device.

Therefore, the network device that has received the third information can determine the motion trajectory of the terminal device based on the first time information, the first location information, the second time information, and the second location information in the third information.

It is understandable that in the embodiments of the present application, the terminal device and/or the network device can perform some or all of the steps in the embodiments of the present application. These steps or operations are only examples, and the embodiments of the present application may also perform other operations or various operations. Deformation of the operation. In addition, each step may be performed in a different order presented in the embodiment of the present application, and it may not be necessary to perform all the operations in the embodiment of the present application.

In the various embodiments of this application, if there are no special instructions and logical conflicts, the terms and/or descriptions between different embodiments are consistent and can be mutually cited. The technical features in different embodiments are based on their inherent Logical relationships can be combined to form new embodiments.

In the above-mentioned embodiments provided in the present application, the solutions of the communication methods provided in the embodiments of the present application are introduced from the perspective of each network element itself and the interaction between each network element. It can be understood that each network element, such as the first network device, the second network device, and the terminal device, includes hardware structures and/or software modules corresponding to each function in order to realize the above-mentioned functions. Those skilled in the art should easily realize that in combination with the units and algorithm steps of the examples described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

Similar to the above-mentioned concept, as shown in FIG. 14, an embodiment of the present application further provides an apparatus 1400, and the apparatus 1400 includes a transceiver unit 1402 and a processing unit 1401.

In an example, the apparatus 1400 is used to implement the function of the terminal device in the foregoing method. The device may be a terminal device, or a device in a terminal device, such as a chip system.

Wherein, the processing unit 1401 is configured to generate first information, where the first information is information used to indicate a first area in a serving cell of the terminal device, and the serving cell includes at least two areas; the service The cell is a cell under the first network device;

The transceiver unit 1402 is configured to send the first information to the second network device.

In an example, the apparatus 1400 is used to implement the function of the first network device in the foregoing method. The device may be the first network device, or a device in the first network device, such as a chip system.

Wherein, the processing unit 1401 is configured to obtain first information, where the first information is information used to indicate a first area in a serving cell of the terminal device, and the serving cell includes at least two areas; the serving cell is A cell under the first network device;

The transceiver unit 1402 is configured to send the first information to the second network device.

In an example, the apparatus 1400 is used to implement the function of the second network device in the foregoing method. The device may be a second network device, or a device in the second network device, such as a chip system.

Wherein, the transceiving unit 1402 is configured to receive first information from a first network device or a terminal device; the first information is used to indicate information about a first area in a serving cell of the terminal device, and the serving cell Contains at least two areas; the serving cell is a cell under the first network device;

The processing unit 1401 is configured to determine the motion track of the terminal device based on the first information.

For the specific execution process of the processing unit 1401 and the transceiving unit 1402, please refer to the record in the above method embodiment. The division of modules in the embodiments of the present application is illustrative, and is only a logical function division. In actual implementation, there may be other division methods. For example, the transceiver unit 1402 may be further divided into a sending unit and a receiving unit. In addition, each functional module in each embodiment of the present application may be integrated in a processor, or may exist alone physically, or two or more modules may be integrated in one module. The above-mentioned integrated modules can be implemented in the form of hardware or software function modules.

As another optional variation, the device may be a chip system. In the embodiments of the present application, the chip system may be composed of chips, or may include chips and other discrete devices. Exemplarily, the device includes a processor and an interface, and the interface may be an input/output interface. Among them, the processor completes the function of the aforementioned processing unit 1401, and the interface completes the function of the aforementioned transceiver unit 1402. The device may also include a memory, where the memory is used to store a program that can be run on the processor, and the processor implements the method of each of the foregoing embodiments when the program is executed by the processor.

Similar to the above-mentioned concept, as shown in FIG. 15, an embodiment of the present application further provides an apparatus 1500. The device 1500 includes: a communication interface 1501, at least one processor 1502, and at least one memory 1503. The communication interface 1501 is used to communicate with other devices through a transmission medium, so that the device used in the apparatus 1500 can communicate with other devices. The memory 1503 is used to store computer programs. The processor 1502 calls the computer program stored in the memory 1503, and transmits and receives data through the communication interface 1501 to implement the method in the foregoing embodiment.

Exemplarily, when the apparatus is the first network device, the memory 1503 is used to store a computer program; the processor 1502 calls the computer program stored in the memory 1503, and executes the method executed by the first network device in the foregoing embodiment through the communication interface 1501. When the device is a second network device, the memory 1503 is used to store a computer program; the processor 1502 calls the computer program stored in the memory 1503, and executes the method executed by the second network device in the foregoing embodiment through the communication interface 1501. When the device is a terminal device, the memory 1503 is used to store a computer program; the processor 1502 calls the computer program stored in the memory 1503, and executes the method executed by the terminal device in the foregoing embodiment through the communication interface 1501.

In the embodiment of the present application, the communication interface 1501 may be a transceiver, a circuit, a bus, a module, or other types of communication interfaces. The processor 1502 may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, and may implement or execute the The disclosed methods, steps and logic block diagrams. The general-purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor. The memory 1503 may be a non-volatile memory, such as a hard disk drive (HDD) or a solid-state drive (SSD), etc., and may also be a volatile memory (volatile memory), such as random access memory (random access memory). -access memory, RAM). The memory is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited to this. The memory in the embodiment of the present application may also be a circuit or any other device capable of realizing a storage function. The memory 1503 and the processor 1502 are coupled. The coupling in the embodiments of the present application is an interval coupling or a communication connection between devices, units or modules, which can be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. As another implementation, the memory 1503 may also be located outside the apparatus 1500. The processor 1502 may cooperate with the memory 1503 to operate. The processor 1502 may execute program instructions stored in the memory 1503. At least one of the at least one memory 1503 may also be included in the processor 1502. The embodiment of the present application does not limit the connection medium between the communication interface 1501, the processor 1502, and the memory 1503. For example, in the embodiment of the present application in FIG. 15, the memory 1503, the processor 1502, and the communication interface 1501 may be connected by a bus, and the bus may be divided into an address bus, a data bus, and a control bus.

It can be understood that the apparatus in the embodiment shown in FIG. 14 may be implemented by the apparatus 1500 shown in FIG. 15. Specifically, the processing unit 1401 may be implemented by the processor 1502, and the transceiver unit 1402 may be implemented by the communication interface 1501.

The embodiments of the present application also provide a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and when the computer program runs on a computer, the computer executes the methods shown in each of the foregoing embodiments.

The methods provided in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present invention are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, network equipment, user equipment, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital video disc (digital video disc, DVD for short)), or a semiconductor medium (for example, a solid state disk Solid State Disk SSD), etc. .

As mentioned above, the above embodiments are only used to introduce the technical solutions of the present application in detail, but the description of the above embodiments is only used to help understand the methods of the embodiments of the present invention, and should not be construed as limiting the embodiments of the present invention. Any changes or substitutions that can be easily conceived by those skilled in the art should be covered by the protection scope of the embodiments of the present invention.

Claims (39)

1. A communication method, characterized in that the method includes:

   The terminal device generates first information, the first information being information for indicating a first area in a serving cell of the terminal device, the serving cell includes at least two areas, and the serving cell is the first network device The next district;

   The terminal device sends the first information to a second network device.
2. The method of claim 1, further comprising:

   Receiving, by the terminal device, first configuration information from the first network device, where the first configuration information indicates information about the at least two areas;

   The terminal device determines that the terminal device is located in the first area based on the first configuration information.
3. The method of claim 2, wherein the terminal device determining that the terminal device is located in the first area based on the first configuration information comprises:

   The terminal device determines that the terminal device is located in the first area based on the location information of the terminal device and the first configuration information.
4. The method according to any one of claims 1 to 3, wherein the first information includes the serving cell information and the first area information.
5. The method according to any one of claims 1 to 4, wherein the first information further includes at least one of the following information:

   The type information of the serving cell, the network information of the serving cell, the identifier of the beam where the terminal device is located, the time information of the terminal device in the serving cell, and the terminal device in the first area Time information.
6. A communication method, characterized in that the method includes:

   The first network device obtains first information, where the first information is information used to indicate a first area in a serving cell of the terminal device, the serving cell includes at least two areas; the serving cell is the first A cell under the network equipment;

   The first network device sends the first information to the second network device.
7. The method of claim 6, further comprising:

   Generating, by the first network device, first configuration information, where the first configuration information indicates information about the at least two areas;

   The first network device sends the first configuration information to the terminal device.
8. The method of claim 7, further comprising:

   The network device determines that the terminal device is located in the first area according to the first configuration information.
9. The method according to any one of claims 6-8, wherein acquiring the first information by the first network device comprises:

   The first network device receives the first information from the terminal device; or,

   The first network device generates the first information.
10. The method according to any one of claims 6-9, wherein the first information includes the serving cell information and the first area information.
11. The method according to any one of claims 6-10, wherein the first information further includes at least one of the following information:

    The type information of the serving cell, the network information of the serving cell, the identification of the beam where the terminal device is located, the time information of the terminal device in the serving cell, the location of the terminal device in the first area Time information and a first handover reason value, where the first handover reason value indicates that the reason why the terminal device switches from another cell to the serving cell is satellite movement or cell movement.
12. The method according to any one of claims 6-11, wherein the method further comprises: the first network device sending the first configuration information to the second network device.
13. The method according to claims 6-12, wherein the method further comprises: the first network device receives second configuration information from the second network device, and the second configuration information is used to determine Information of at least two areas under each of the at least one cell under the second network device.
14. A communication method, characterized in that the method includes:

    The second network device receives the first information from the first network device or the terminal device; the first information is used to indicate the information of the first area in the serving cell of the terminal device, and the serving cell includes at least two Area; the serving cell is a cell under the first network device;

    The second network device determines the movement track of the terminal device based on the first information.
15. The method according to claim 14, wherein the first information includes the serving cell information and the first area information.
16. The method according to claim 14 or 15, wherein the first information further includes at least one of the following information:

    The type information of the serving cell, the network information of the serving cell, the identification of the beam where the terminal device is located, the time information of the terminal device in the serving cell, the location of the terminal device in the first area Time information and a first handover reason value, where the first handover reason value indicates that the reason why the terminal device switches from another cell to the serving cell is satellite movement or cell movement.
17. The method according to any one of claims 14-16, wherein the method further comprises: the second network device receives first configuration information from the first network device, and the first configuration information Information used to indicate the at least two areas.
18. The method according to any one of claims 14-17, wherein the method further comprises: the second network device sends second configuration information to the first network device, and the second configuration information uses For determining information of at least two areas under each of the at least one cell under the second network device.
19. A communication device, characterized in that the device includes:

    A processing unit, configured to generate first information, where the first information is information for indicating a first area in a serving cell of the terminal device, the serving cell includes at least two areas; the serving cell is the first area A cell under a network device;

    The sending unit is configured to send the first information to the second network device.
20. The apparatus according to claim 19, wherein the apparatus further comprises: a receiving unit, configured to receive first configuration information from the first network device, the first configuration information indicating the at least two Information about each area;

    The processing unit is further configured to determine that the terminal device is located in the first area based on the first configuration information.
21. The apparatus according to claim 20, wherein the processing unit is configured to determine that the terminal device is located in the first area based on the location information of the terminal device and the first configuration information.
22. 21. The apparatus according to any one of claims 19-21, wherein the first information includes the serving cell information and the first area information.
23. The device according to any one of claims 19-22, wherein the first information further comprises at least one of the following information:

    The type information of the serving cell, the network information of the serving cell, the identifier of the beam where the terminal device is located, the time information of the terminal device in the serving cell, and the terminal device in the first area Time information.
24. A communication device, characterized in that the device includes:

    The processing unit is configured to obtain first information, where the first information is information for indicating a first area in a serving cell of a terminal device, the serving cell includes at least two areas; the serving cell is the first A cell under a network device;

    The sending unit is configured to send the first information to the second network device.
25. The device according to claim 24, wherein the processing unit is further configured to generate first configuration information, the first configuration information indicating information of the at least two areas;

    The sending unit is further configured to send the first configuration information to the terminal device.
26. The apparatus according to claim 25, wherein the processing unit is further configured to determine that the terminal device is located in the first area according to the first configuration information.
27. The apparatus according to any one of claims 24-26, wherein the receiving unit is configured to receive the first information from the terminal device; or,

    The processing unit is further configured to generate the first information.
28. The apparatus according to any one of claims 24-27, wherein the first information includes the serving cell information and the first area information.
29. The device according to any one of claims 24-28, wherein the first information further comprises at least one of the following information:

    The type information of the serving cell, the network information of the serving cell, the identifier of the beam where the terminal device is located, the time information of the terminal device in the serving cell, and the terminal device in the first area Time information and a first handover reason value, where the first handover reason value indicates that the reason why the terminal device switches from another cell to the serving cell is satellite movement or cell movement.
30. The apparatus according to any one of claims 24-29, wherein the sending unit is further configured to send the first configuration information to the second network device.
31. The apparatus according to any one of claims 24-30, wherein the receiving unit is further configured to receive second configuration information from the second network device, and the second configuration information is used to determine the first 2. Information of at least two areas under each cell in at least one cell under the network device.
32. A communication device, characterized in that the device includes:

    The receiving unit is configured to receive first information from a first network device or a terminal device; the first information is used to indicate information about a first area in a serving cell of the terminal device, and the serving cell includes at least two Areas; the serving cell is a cell under the first network device;

    The processing unit is configured to determine the motion track of the terminal device based on the first information.
33. The apparatus according to claim 32, wherein the first information includes the serving cell information and the first area information.
34. The device according to claim 32 or 33, wherein the first information further includes at least one of the following information:

    The type information of the serving cell, the network information of the serving cell, the identifier of the beam where the terminal device is located, the time information of the terminal device in the serving cell, and the terminal device in the first area Time information and a first handover reason value, where the first handover reason value indicates that the reason why the terminal device switches from another cell to the serving cell is satellite movement or cell movement.
35. The apparatus according to any one of claims 33-34, wherein the receiving unit is configured to receive first configuration information from the first network device, and the first configuration information is used to indicate the Information for at least two areas.
36. The apparatus according to any one of claims 33-35, wherein the sending unit is configured to send second configuration information to the first network device, and the second configuration information is used to determine the second network Information of at least two areas under each cell in at least one cell under the device.
37. A device, characterized in that the device includes a transceiver, a processor, and a memory; the memory stores program instructions; when the program instructions are executed, the device executes any of claims 1 to 18 One described method.
38. A chip, characterized in that the chip is coupled with a memory in an electronic device, so that the chip invokes program instructions stored in the memory during operation to implement the method according to any one of claims 1 to 18.
39. A computer-readable storage medium, wherein the computer-readable storage medium includes program instructions, when the program instructions are executed on a device, the device executes any one of claims 1 to 18 Methods.

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