Downlink Communication Method and Related Equipment under High-Speed Movement

Abstract

The present application provides a downlink communication method and related devices under high-speed movement. The base station includes a source base station and a target base station. The communication method includes: in response to a sharing information request from the target base station, sharing a user information table corresponding to at least one user equipment in the source base station with the target base station; and establishing a communication connection for the downlink between the target base station and the corresponding target user equipment according to the user information table, so that the target base station transmits signals to the target user equipment. The method of the present application can share the relevant information of the user equipment stored in the current base station with the next base station, avoiding the time-consuming problem of re-establishing a communication mechanism, and can ensure that the base station stably transmits data to the mobile terminal in a high-speed movement scenario.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to a downlink communication method and related devices under high-speed movement. Background Art

[0002] In recent years, high-speed railways in China have developed rapidly. At the same time, the demand for users to communicate in high-speed scenarios has also increased day by day. For example, users communicate on a moving high-speed train. When a user equipment communicates in a high-speed moving state, various problems such as frequent handovers, high handover failure rates, and high radio link failure rates will occur.

[0003] Based on this, there is an urgent need for a communication solution that can achieve efficient and stable communication with high-speed moving users, especially a downlink communication solution. Summary of the Invention

[0004] In view of this, the purpose of this application is to propose a downlink communication method and related devices under high-speed movement to solve the above problems.

[0005] Based on the above purpose, in the first aspect of this application, a downlink communication method under high-speed movement is provided. The base station includes a source base station and a target base station. The communication method includes:

[0006] In response to a shared information request from the target base station, share the user information table corresponding to at least one user equipment in the source base station with the target base station;

[0007] According to the user information table, establish a communication connection for the downlink between the target base station and the corresponding target user equipment, so that the target base station transmits signals to the target user equipment.

[0008] Further, after establishing the communication connection for the downlink between the target base station and the corresponding target user equipment according to the user information table, so that the target base station transmits signals to the target user equipment, it further includes:

[0009] Obtain the time information corresponding to the last shared information request of the target base station;

[0010] Determine the sharing duration of the target base station according to the time information corresponding to the last shared information request;

[0011] In response to determining that it is greater than a preset sharing duration threshold, the source base station stops sharing with the target base station and deletes the data in the user information table.

[0012] Further, the method further includes:

[0013] In response to determining that the user equipment information corresponding to the target user equipment is not stored in the user information table, group the target user equipment and allocate a ZC sequence to the target user equipment.

[0014] Further, after the step of in response to determining that the user equipment information corresponding to the target user equipment is not stored in the user information table, grouping the target user equipment and allocating a ZC sequence to the target user equipment, the method further includes:

[0015] In response to determining that the user equipment information corresponding to the target user equipment is stored in the user information table, update the latest connection time for the target base station to connect to the target user equipment;

[0016] Determine the connection duration of the target base station according to the latest connection time;

[0017] In response to determining that the connection duration is not within the preset connection duration threshold range, delete the target user equipment from the user information table.

[0018] Further, the step of grouping the user equipment includes:

[0019] Divide a preset number of user equipment into one group according to the order in which the user equipment accesses the base station;

[0020] According to the time information corresponding to the connection requests of each user equipment in each group, allocate corresponding serial numbers to each user equipment in turn.

[0021] Further, the step of allocating a ZC sequence to the user equipment includes:

[0022] For each group, respectively match a ZC root sequence, where the group and the ZC root sequence are in one-to-one correspondence;

[0023] According to the ZC root sequence, perform cyclic shift on each user equipment in the same group to generate the ZC sequence of the user equipment, where the user equipment and the ZC sequence are in one-to-one correspondence.

[0024] Further, the user information table includes at least one of the following: user equipment information, ZC sequence, serial number, and latest connection time.

[0025] Based on the same inventive concept, a second aspect of the present application provides a base station downlink communication device under high-speed movement, including:

[0026] An information sharing module, in response to a sharing information request of the target base station, shares the user information table corresponding to at least one user equipment in the source base station with the target base station;

[0027] The downlink communication module establishes a communication connection for the downlink between the target base station and the corresponding target user equipment according to the user information table, so that the target base station transmits signals to the target user equipment.

[0028] Based on the same inventive concept, a third aspect of the present application provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, the method described in the first aspect is implemented.

[0029] Based on the same inventive concept, a fourth aspect of the present application provides a non-transitory computer-readable storage medium. The non-transitory computer-readable storage medium stores computer instructions, and the computer instructions are used to cause a computer to execute the method described in the first aspect.

[0030] As can be seen from the above, the downlink communication method and related devices provided by the present application are based on the established uplink communication connection between the user equipment and the base station. In the scenario of high-speed movement, after the user moves from the current base station to the next base station, the current base station shares the user information table it stores with the next base station. The next base station establishes a communication connection with the user equipment through the user equipment information in the user information table, enabling the base station to transmit data to the terminal device stably and quickly, improving the user experience. Description of the Drawings

[0031] In order to more clearly illustrate the technical solutions in the present application or related technologies, the following will briefly introduce the drawings required for use in the embodiments or related technology descriptions. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0032] Figure 1 It is a flowchart of the downlink communication method under high-speed movement according to an embodiment of the present application;

[0033] Figure 2 It is a flowchart of the method for processing the timeout of the shared information request according to an embodiment of the present application;

[0034] Figure 3 It is a flowchart of the method for processing user equipment whose user equipment information is not pre-stored according to an embodiment of the present application;

[0035] Figure 4 It is a flowchart of the method for processing the timeout of the base station connecting to the user equipment according to an embodiment of the present application;

[0036] Figure 5 It is a schematic structural diagram of the base station downlink communication device under high-speed movement according to an embodiment of the present application;

[0037] Figure 6 Schematic diagram of the structure of the electronic device according to an embodiment of the present application. Detailed implementation manners

[0038] In order to make the objectives, technical solutions and advantages of the present application more clear and understandable, the following further describes the present application in detail with reference to specific embodiments and the accompanying drawings.

[0039] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the ordinary meanings understood by those of ordinary skill in the art to which the present application belongs. The "first", "second" and similar terms used in the embodiments of the present application do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before this term cover the elements or objects listed after this term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0040] As described in the background art section, the communication solutions of base stations in the related art are still difficult to meet the requirements. The applicant found that at least the following problems exist during the implementation of the present application: in a scenario of high-speed movement, for example, when a user is in a high-speed train, the signal radiation range of the base station is limited. When the user moves from the signal radiation range of the current base station to the signal radiation range of the next base station, since the next base station does not store the relevant information of each user device on the train, at this time, the user needs to re-establish a communication connection with the next base station. Re-establishing the communication connection takes a long time, which may cause the signal of the user device to be interrupted, with a high handover failure rate, affecting the user experience. In addition, frequent re-establishment of communication connections also increases resource consumption.

[0041] In view of this, an embodiment of the present application provides a downlink communication method under high-speed movement. Based on the uplink communication connection already established between the user device and the base station, the current base station stores the relevant information of the accessed user devices. In a scenario of high-speed movement, when the user device moves from the signal radiation range of the current base station to the signal radiation range of the next base station, the current base station shares the relevant information of all the user devices it stores with the next base station, thereby effectively reducing the time taken for the next base station to establish a downlink communication connection with the user and the device.

[0042] The following details the technical solutions of the present application through specific embodiments.

[0043] Reference Figure 1 , a downlink communication method under high-speed movement provided by an embodiment of the present application, the base station includes a source base station and a target base station, and the method specifically includes the following steps:

[0044] Step S101, in response to a shared information request from the target base station, share the user information table corresponding to at least one user equipment in the source base station with the target base station.

[0045] In this step, for each base station, the base station where the user equipment is currently located is the source base station, and the next base station relative to the source base station in the train running direction is the target base station. Specifically, for example: for a train running at high speed on a railway track, when the user equipment in the train moves rapidly with the train, it will continuously leave the signal radiation range of the current base station and enter the signal radiation range of the next base station.

[0046] Specifically, the user information table at least includes at least one of the following: user equipment information, ZC sequence, serial number, and latest connection time. Among them, User Equipment (UE) can be any communication product capable of communicating with a base station, including but not limited to: mobile phones, computers, etc. The user equipment information can be a user identifier, and the user identifier is unique, that is, the user equipment and the user identifier are in one-to-one correspondence. Zadoff-Chu (ZC) sequence: The term "ZC sequence" in this application refers to a type of sequence. Each base station has a certain signal radiation range, and the latest connection time refers to the time when the user equipment last requests to access the railway communication network.

[0047] Step S102, according to the user information table, establish a communication connection for the downlink between the target base station and the corresponding target user equipment, so that the target base station transmits signals to the target user equipment.

[0048] In this step, the ZC sequence corresponding to the user equipment can be obtained through the user information table, and the ZC sequence has good autocorrelation and cross-correlation. The target base station can determine which specific user equipment the signal receiver is according to the user information table, modulate the signal using the ZC sequence corresponding to the user equipment, and then transmit the modulated signal to the user equipment.

[0049] It can be seen that the downlink communication method under high-speed movement provided by this embodiment, based on the established uplink communication connection between the user equipment and the base station, in the scenario of high-speed movement, after the user enters the next base station from the current base station, the current base station shares the user information table it stores with the next base station, and the next base station establishes a communication connection with the user equipment through the user equipment information in the user information table, enabling the base station to transmit data to the terminal equipment stably and quickly, improving the user experience.

[0050] In some embodiments, with reference to Figure 2 , for step S102 in the foregoing embodiments, the following steps may further be included after that:

[0051] Step S201, obtain the time information corresponding to the last shared information request of the target base station.

[0052] In this step, if a target base station requests to share information, it indicates that the user equipment in the train has entered the signal radiation range of the target base station. If the target base station only sends a shared information request once, it is both the first shared information request and can also be regarded as the last shared information request.

[0053] Step S202, determine the sharing duration of the target base station according to the time information corresponding to the last shared information request.

[0054] In this step, the sharing duration starts from the time when the source base station shares the user information table with the target base station and ends when the source base station stops sharing the user information table with the target base station. The time difference is the sharing duration.

[0055] Step S203, in response to determining that it is greater than a preset sharing duration threshold, the source base station stops sharing with the target base station and deletes the data in the user information table.

[0056] In this step, the sharing duration threshold is calculated based on the time when the train enters the signal radiation area of the target base station and the time when it leaves the signal radiation area of the target base station. Setting the sharing duration threshold can ensure that users can communicate normally within the signal radiation area of the target base station and avoid interruptions.

[0057] In some embodiments, in combination with Figure 3 , the method may further include the following steps:

[0058] Step S301, in response to determining that the user equipment information is not stored in the user information table of the base station, group the user equipment and allocate a ZC sequence to the user equipment.

[0059] In this step, if the user identifier of the user equipment is not found in the user information table through comparison, then the user equipment is accessing the rail communication network for the first time, and it can be confirmed that other relevant user information of this user is not pre-stored.

[0060] Correspondingly, store the user identifier, serial number, ZC sequence, and access time in the user information table.

[0061] It is easy to understand that if the user identifier of the user device exists in the user information table through comparison search, then the user device has already accessed the track communication network, and it can be confirmed that other relevant user information of the user has been pre-stored, and there is no need to perform the operations of grouping and allocating ZC sequences.

[0062] In some embodiments, in combination with Figure 4 , for step S301 in the foregoing embodiment, the following steps may further be included after it:

[0063] Step S401, in response to determining that the user device information corresponding to the target user device has been stored in the user information table, update the latest connection time of the target base station connecting to the target user device.

[0064] In this step, since there is a situation where the communication connection between the base station and the user device is disconnected and needs to be reconnected, at this time, it is necessary to update the latest connection time of the target base station connecting to the user device in the user information table.

[0065] Step S402, determine the connection duration of the target base station according to the latest connection time.

[0066] In this step, the connection duration is timed from when the base station sends a connection request until the current moment or until the connection is successful.

[0067] Step S403, in response to determining that the connection duration is not within the preset connection duration threshold range, delete the target user device from the user information table.

[0068] In this step, to avoid the base station and the user device not establishing a connection for a long time and occupying channel resources, for user devices that have not been successfully connected for a long time, the base station disconnects from the user device and clears the relevant information. At this time, the user device resends a connection request to establish a communication connection with the base station within the connection duration threshold range.

[0069] In some embodiments, for the grouping of the user device in the foregoing embodiment, it may include the following steps:

[0070] Step S501, divide a preset number of user devices into one group according to the order in which the user devices access the base station.

[0071] In this step, the number of user devices in the group can be set according to the actual situation, and no specific limitation is made here.

[0072] Step S502, allocate corresponding serial numbers to each user device in turn according to the time information corresponding to the connection request of each user device in each group.

[0073] In this step, the bit size n of the serial number is the logarithm of the maximum number N of a group, that is, n = log2N.

[0074] In some embodiments, for allocating ZC sequences to the user equipment described in the foregoing embodiments, the following steps may be included:

[0075] Step S601: For each of the groups, match a ZC root sequence respectively, where the group and the ZC root sequence are in one-to-one correspondence.

[0076] Step S602: According to the ZC root sequence, perform cyclic shift on each user equipment in the same group to generate the ZC sequence of the user equipment, where the user equipment and the ZC sequence are in one-to-one correspondence.

[0077] It is easy to understand that when the sharing duration is greater than the sharing duration threshold, it indicates that the user equipment is no longer within the signal radiation area of the target base station. At this time, the source base station no longer shares the user information table with the target base station to avoid wasting communication resources.

[0078] It should be noted that the method of the embodiments of the present application can be executed by a single device, such as a computer or a server. The method of this embodiment can also be applied to a distributed scenario and be completed by the cooperation of multiple devices. In this case of the distributed scenario, one of the multiple devices can only execute one or more steps of the method of the embodiments of the present application, and these multiple devices will interact with each other to complete the described method.

[0079] It should be noted that some embodiments of the present application have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be executed in a different order from that in the above embodiments and still achieve the desired result. Additionally, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired result. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0080] Based on the same inventive concept, corresponding to the method of any of the above embodiments, the present application further provides a base station downlink communication device under high-speed movement.

[0081] Refer to Figure 5 , the base station downlink communication device under high-speed movement includes:

[0082] An information sharing module 701, in response to the sharing information request of the target base station, shares the user information table corresponding to at least one user equipment in the source base station with the target base station;

[0083] The downlink communication module 702 establishes a communication connection for the downlink between the target base station and the corresponding target user equipment according to the user information table, so that the target base station transmits signals to the target user equipment.

[0084] As an optional embodiment, the device further includes a shared timeout processing module (not shown in the figure), and the shared timeout processing module is configured to obtain the time information corresponding to the last shared information request of the target base station; determine the sharing duration of the target base station according to the time information corresponding to the last shared information request; in response to determining that it is greater than a preset sharing duration threshold, the source base station stops sharing with the target base station and deletes the data in the user information table.

[0085] As an optional embodiment, the device further includes a user processing module (not shown in the figure), and the user processing module is configured to, in response to determining that the user equipment information corresponding to the target user equipment is not stored in the user information table, group the target user equipment and allocate a ZC sequence to the target user equipment.

[0086] As an optional embodiment, the device further includes a connection timeout processing module (not shown in the figure), and the connection timeout processing module is configured to, in response to determining that the user equipment information corresponding to the target user equipment is stored in the user information table, update the latest connection time when the target base station connects to the target user equipment; determine the connection duration of the target base station according to the latest connection time; in response to determining that the connection duration is not within the preset connection duration threshold range, delete the target user equipment from the user information table.

[0087] As an optional embodiment, the device further includes a grouping module (not shown in the figure), and the grouping module is configured to divide a preset number of user equipment into a group according to the order in which the user equipment accesses the base station; allocate corresponding serial numbers to each user equipment in turn according to the time information corresponding to the connection request of each user equipment in each group.

[0088] As an optional embodiment, the device further includes a ZC sequence allocation module (not shown in the figure), and the ZC sequence allocation module is configured to match a ZC root sequence for each group, where the group and the ZC root sequence are in one-to-one correspondence; perform cyclic shift on each user equipment in the same group according to the ZC root sequence to generate the ZC sequence of the user equipment, where the user equipment and the ZC sequence are in one-to-one correspondence.

[0089] As an optional embodiment, the user information table includes at least one of the following: user equipment information, ZC sequence, serial number, and the latest connection time.

[0090] For the convenience of description, when describing the above device, various modules are described separately according to their functions. Of course, when implementing the present application, the functions of each module can be implemented in the same or multiple software and / or hardware.

[0091] The device in the above embodiment is used to implement the corresponding downlink communication method under high-speed movement in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be elaborated here.

[0092] Based on the same inventive concept, corresponding to the method in any of the above embodiments, the present application further provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, it implements the downlink communication method under high-speed movement described in any of the above embodiments.

[0093] Figure 6 FIG. shows a more specific schematic diagram of the hardware structure of the electronic device provided in this embodiment. The device may include: a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. Among them, the processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040 are communicatively connected to each other inside the device through the bus 1050.

[0094] The processor 1010 may be implemented in a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, etc., and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0095] The memory 1020 may be implemented in the form of a ROM (Read Only Memory), a RAM (Random Access Memory), a static storage device, a dynamic storage device, etc. The memory 1020 may store an operating system and other application programs. When implementing the technical solutions provided in the embodiments of this specification through software or firmware, the relevant program codes are stored in the memory 1020 and are called and executed by the processor 1010.

[0096] The input / output interface 1030 is used to connect to the input / output module to achieve information input and output. The input / output module can be configured as a component in the device (not shown in the figure), or can be externally connected to the device to provide corresponding functions. Among them, the input device can include a keyboard, a mouse, a touch screen, a microphone, various sensors, etc., and the output device can include a display, a speaker, a vibrator, an indicator light, etc.

[0097] The communication interface 1040 is used to connect to the communication module (not shown in the figure) to achieve communication interaction between this device and other devices. Among them, the communication module can achieve communication through wired means (such as USB, network cable, etc.), or can also achieve communication through wireless means (such as mobile network, WIFI, Bluetooth, etc.).

[0098] The bus 1050 includes a path for transmitting information between various components of the device (such as the processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040).

[0099] It should be noted that although the above device only shows the processor 1010, the memory 1020, the input / output interface 1030, the communication interface 1040, and the bus 1050, in the specific implementation process, the device may also include other components necessary for normal operation. In addition, those skilled in the art can understand that the above device may also only include the components necessary to implement the solution of the embodiments of this specification, and do not have to include all the components shown in the figure.

[0100] The electronic device of the above embodiment is used to implement the corresponding downlink communication method under high-speed movement in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be elaborated here.

[0101] Based on the same inventive concept, corresponding to the method of any of the above embodiments, the present application also provides a non-transitory computer-readable storage medium, and the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions are used to make the computer execute the downlink communication method under high-speed movement as described in any of the foregoing embodiments.

[0102] The computer-readable medium of this embodiment includes both permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. The information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that can be used to store information that can be accessed by a computing device.

[0103] The computer instructions stored in the storage medium of the above embodiment are used to cause the computer to execute the downlink communication method under high-speed movement as described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be elaborated here.

[0104] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present application (including the claims) is limited to these examples; within the concept of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of brevity.

[0105] In addition, for simplicity of explanation and discussion, and in order not to make the embodiments of the present application difficult to understand, the well-known power / ground connections to integrated circuit (IC) chips and other components may or may not be shown in the provided drawings. In addition, the device may be shown in block diagram form to avoid making the embodiments of the present application difficult to understand, and this also takes into account the fact that the details of the implementation of these block diagram devices are highly dependent on the platform on which the embodiments of the present application will be implemented (i.e., these details should be fully within the understanding of those skilled in the art). In the case where specific details (such as circuits) are set forth to describe the exemplary embodiments of the present application, it will be apparent to those skilled in the art that the embodiments of the present application can be implemented without these specific details or with variations of these specific details. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0106] Although the present application has been described in connection with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art in light of the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may be used with the embodiments discussed.

[0107] Embodiments of the present application are intended to cover all such alternatives, modifications, and variations that fall within the broad scope of the appended claims. Accordingly, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application shall be included within the protection scope of the present application.

Claims

1. A downlink communication method under high-speed movement, characterized in that, The base station includes a source base station and a target base station, and the communication method includes: In response to a sharing information request from the target base station, sharing a user information table corresponding to at least one user equipment in the source base station with the target base station; According to the user information table, establishing a downlink communication connection between the target base station and the corresponding target user equipment, so that the target base station transmits a signal to the target user equipment, and the user information table includes at least one of the following: user equipment information, ZC sequence, serial number, and latest connection time; After establishing the downlink communication connection between the target base station and the corresponding target user equipment according to the user information table, so that the target base station transmits a signal to the target user equipment, it further includes: Obtaining time information corresponding to the last sharing information request of the target base station; Determining the sharing duration of the target base station according to the time information corresponding to the last sharing information request, where the sharing duration is timed from when the source base station shares the user information table with the target base station until the source base station stops sharing the user information table with the target base station, and the time difference is the sharing duration; In response to determining that the sharing duration is greater than a preset sharing duration threshold, the source base station stops sharing with the target base station and deletes the data in the user information table; The method further includes: In response to determining that the user equipment information corresponding to the target user equipment is not stored in the user information table, grouping the target user equipment and allocating a ZC sequence to the target user equipment; Storing the user identifier, serial number, ZC sequence, and access time in the user information table; After grouping the target user equipment and allocating a ZC sequence to the target user equipment in response to determining that the user equipment information corresponding to the target user equipment is not stored in the user information table, it further includes: In response to determining that the user equipment information corresponding to the target user equipment is already stored in the user information table, updating the latest connection time when the target base station connects to the target user equipment; Determining the connection duration of the target base station according to the latest connection time, where the connection duration is timed from when the base station sends a connection request until the current moment or until the connection is successful; In response to determining that the connection duration is not within the preset connection duration threshold range, deleting the target user equipment from the user information table; The grouping of the user equipment includes: Dividing a preset number of user equipment into one group according to the order in which the user equipment accesses the base station; According to the time information corresponding to the connection request of each user equipment in each group, sequentially allocating corresponding serial numbers to each user equipment; The allocating a ZC sequence to the user equipment includes: For each group, respectively matching a ZC root sequence, where the group and the ZC root sequence are in one-to-one correspondence; According to the ZC root sequence, performing cyclic shift on each user equipment in the same group to generate the ZC sequence of the user equipment, where the user equipment and the ZC sequence are in one-to-one correspondence.

2. A base station downlink communication device under high-speed movement, characterized in that, Includes: An information sharing module, in response to a sharing information request from a target base station, shares a user information table corresponding to at least one user equipment in a source base station with the target base station; A downlink communication module, according to the user information table, establishes a communication connection of a downlink between the target base station and a corresponding target user equipment, so that the target base station transmits a signal to the target user equipment, and the user information table includes at least one of the following: user equipment information, ZC sequence, serial number, and latest connection time; After establishing the communication connection of the downlink between the target base station and the corresponding target user equipment according to the user information table, so that the target base station transmits a signal to the target user equipment, further includes: Obtain the time information corresponding to the last sharing information request of the target base station; According to the time information corresponding to the last sharing information request, determine the sharing duration of the target base station, where the sharing duration is timed from when the source base station shares the user information table with the target base station until the source base station stops sharing the user information table with the target base station, and the time difference is the sharing duration; In response to determining that the sharing duration is greater than a preset sharing duration threshold, the source base station stops sharing with the target base station and deletes the data in the user information table; The apparatus further includes: In response to determining that the user equipment information corresponding to the target user equipment is not stored in the user information table, group the target user equipment and allocate a ZC sequence to the target user equipment; Store the user identifier, serial number, ZC sequence, and access time in the user information table; After grouping the target user equipment and allocating a ZC sequence to the target user equipment in response to determining that the user equipment information corresponding to the target user equipment is not stored in the user information table, further includes: In response to determining that the user equipment information corresponding to the target user equipment is already stored in the user information table, update the latest connection time for the target base station to connect to the target user equipment; According to the latest connection time, determine the connection duration of the target base station, where the connection duration is timed from when the base station sends a connection request until the current moment or until the connection is successful; In response to determining that the connection duration is not within a preset connection duration threshold range, delete the target user equipment from the user information table; The grouping of the user equipment includes: Divide a preset number of user equipment into one group according to the order in which the user equipment accesses the base station; According to the time information corresponding to the connection request of each user equipment in each group, sequentially allocate corresponding serial numbers to each user equipment; The allocation of the ZC sequence to the user equipment includes: For each group, respectively match a ZC root sequence, where the group and the ZC root sequence are in one-to-one correspondence; According to the ZC root sequence, perform cyclic shift on each user equipment in the same group to generate the ZC sequence of the user equipment, where the user equipment and the ZC sequence are in one-to-one correspondence.

3. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the method described in claim 1.

4. A non-transitory computer-readable storage medium storing computer instructions, characterized in that, The computer instructions are used to cause a computer to execute the method described in claim 1.

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