Task-oriented 5G cell switching method and device

Abstract

The invention discloses a task-oriented 5G cell switching method and a task-oriented 5G cell switching device, which belong to the technical field of wireless communication, and are characterized in that a base station side divides user types into VIP users and common users according to task requirements; the base station side network manager configures the unique identification number of the mobile device of the VIP user to the base station; after receiving the switching request of the user, the base station side implements cell switching operation; the switching threshold of the VIP user is greater than the switching threshold of a common user; and if the base station side judges that the switched user belongs to the VIP user, the transmitting power of the target cell is improved. Therefore, the user executing the important task can be set as the VIP user, the ping-pong phenomenon of the VIP user can be reduced, and the switching stability and the transmission rate of the user executing the important task are practically guaranteed.

Description

Technical Field

[0001] The present invention belongs to the field of wireless communication technology, and specifically relates to a task-oriented 5G cell switching method and device. Background Art

[0002] Wireless mobile communication systems are usually cellular, that is, the entire coverage area of ​​the system is divided into small areas, each of which is associated with a wireless base station with one or more antennas (wireless transmitters). The wireless base station provides communication resources through a wireless interface for communicating with user equipment (UE) in the coverage area of ​​the wireless base station. These areas are usually called cells, and UE can be a mobile phone, a smart phone, or a handheld computer with communication capabilities.

[0003] A base station with a single radio transmitter is often referred to as an omnidirectional cell site with only one cell. However, a base station can be shared by two or more cells. For example, a base station can be equipped with two or more radio transmitters that transmit in different directions, and the coverage area of ​​each transmitter is defined as a cell. This is usually called a sectored site, and each sector constitutes a cell. A common example is a sectored base station supporting three cells. Similarly, a single cell can use two or more radio transmitters to provide wireless coverage in a specific area.

[0004] The cellular network can provide mobility support. That is, when the UE moves in the system, the cellular network allows the interface between the UE and the network (i.e., the connection between the UE and the wireless transmitter) to switch between different wireless transmitters, so that the UE can maintain ongoing communications. The switch from one wireless transmitter to another usually occurs when the interface quality of the current serving cell (hereinafter referred to as the source cell) drops below a threshold value. At the same time, in a well-planned wireless communication system, the interface quality of another cell (or multiple cells) will increase, so the UE can select one of the other cells (neighboring cells) as the target cell, that is, as the new source (serving) cell for maintaining communication.

[0005] However, a ping-pong phenomenon occurs when switching cells. That is, when there are cells with similar signal strengths in a certain area, the UE will continue to select the cell with the strongest signal. Since the signal strengths of these cells are constantly changing, the UE will eventually switch between these cells.

[0006] The ping-pong phenomenon during cell switching has always been a research focus in the field of 5G wireless communication technology, especially in ship communication environments with complex construction structures and relatively closed spaces. The probability of users experiencing ping-pong phenomena during the switching process will increase, and frequent switching signaling interactions will also increase system resource overhead and affect user experience.

[0007] The existing solution to the ping-pong phenomenon is mainly to set a timer to record the number of ping-pong switching times. When the number of ping-pong switching of the user reaches a preset number, it is determined whether to report the A3 event to avoid unreasonable switching, or to divide the ping-pong suppression area to determine whether the longitude and latitude of the user is located in the ping-pong suppression area of ​​the source cell. If it is in this area, the measurement report is ignored to improve the accuracy of suppressing ping-pong switching.

[0008] The method of setting a timer in the above solution to the ping-pong phenomenon will affect the timeliness of user switching to a certain extent, especially for tasks that require time accuracy; dividing the ping-pong suppression area requires accurate acquisition of the real-time latitude and longitude information of the area and the user. For 5G networks deployed in active ships or other application scenarios, the process and performance requirements of FPGA, DSP chips, etc. are very high. Moreover, the above solution is implemented uniformly for users of all services in the base station, but it is aimed at typical military application scenarios such as ship platform combat systems, aviation support systems, power systems, and application scenarios where users have differentiated requirements for network capabilities. How to effectively ensure the switching stability and transmission rate of users performing important tasks and reduce the ping-pong phenomenon has become a technical problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0009] In view of this, the present invention provides a task-oriented 5G cell switching method, which divides users into different types according to user needs, and configures different switching thresholds and target cell transmission powers based on user types, thereby ensuring the switching stability and transmission rate of users performing important tasks.

[0010] A task-oriented 5G cell switching method adopts the following technical solutions:

[0011] The base station divides user types into VIP users and ordinary users according to task requirements;

[0012] The network management on the base station side configures the unique identification number of the VIP user's mobile device to the base station;

[0013] After receiving the switching request from the user, the base station side implements the cell switching operation; the switching threshold of the VIP user is greater than the switching threshold of the ordinary user;

[0014] If the base station determines that the user being handed over is a VIP user, the transmission power of the target cell is increased.

[0015] Furthermore, if the base station determines that the user to be handed over is a common user, the transmission power of the target cell is maintained.

[0016] Furthermore, after the user switching is completed, the method further includes:

[0017] The base station determines whether there are still VIP users in the source cell;

[0018] If the base station determines that there are still VIP users in the source cell, the transmission power of the source cell is maintained.

[0019] Furthermore, after the user switching is completed, the method further includes:

[0020] The base station determines whether there are still VIP users in the source cell;

[0021] If the base station determines that there is no VIP user in the source cell, the transmission power of the source cell is reduced.

[0022] Furthermore, the switching threshold of the VIP user is greater than 3dB.

[0023] Furthermore, the base station side determines the user type according to the unique identification number, and matches the corresponding switching threshold according to the user type.

[0024] In addition, a task-oriented 5G cell switching device provided by the present invention includes:

[0025] A setting module, used to classify user types into VIP users and ordinary users, and set the switching threshold of VIP users to be greater than the switching threshold of ordinary users;

[0026] A matching module is used to match the corresponding switching thresholds between VIP users and ordinary users;

[0027] A measurement module, used to measure the transmit power of a cell;

[0028] A determination module, used to determine the measurement result of the cell;

[0029] A request module, configured to send a handover request to a target cell in response to the measurement result being greater than the handover threshold;

[0030] The switching module is used to switch the network connection of the user from the source cell to the target cell.

[0031] Furthermore, a metering module is included, which is used to measure the number of VIP users in the source cell;

[0032] The adjustment module is used to adjust the transmission power of the target cell and the source cell. In addition, the present invention also provides a task-oriented 5G cell switching device.

[0033] Beneficial effects:

[0034] 1. The task-oriented cell switching method comprises the following steps: the base station side divides the user types into VIP users and ordinary users according to the task requirements; the network management on the base station side configures the unique identification number of the mobile device of the VIP user to the base station; the base station side determines to implement the cell switching operation after receiving the switching request of the user; the switching threshold of the VIP user is greater than the switching threshold of the ordinary user; if the base station side determines that the user to be switched is a VIP user, the transmission power of the target cell is increased.

[0035] In this way, users who perform important tasks (such as issuing combat orders) can be set as VIP users, which can reduce the ping-pong phenomenon of VIP users and effectively ensure the switching stability and transmission rate of users who perform important tasks. Moreover, the above method does not affect the timeliness of switching of VIP users, which is very important in tasks that require time accuracy. It also avoids the need to accurately obtain the real-time longitude and latitude information of the area and the user when dividing the ping-pong suppression area, which leads to high requirements on the process and performance of FPGA, DSP chips, etc.

[0036] 2. If the user being handed over is a common user, the target cell transmission power is maintained, thus reducing the ping-pong phenomenon of VIP users.

[0037] 3. After the user handover is completed, the base station determines whether there are still VIP users in the source cell. If there are still VIP users in the source cell, the transmission power of the source cell is maintained. In this way, the ping-pong phenomenon of VIP users can be reduced.

[0038] 4. After the user handover is completed, the base station determines whether there are still VIP users in the source cell. If there are no VIP users in the source cell, the transmission power of the source cell is reduced. In this way, the ping-pong phenomenon of VIP users can be reduced.

[0039] 5. An adjustment module is used to adjust the transmission power of the target cell and the source cell. In this way, after the VIP user switches to the target cell, the transmission power of the target cell can be adjusted to be greater than the transmission power of the source cell through the adjustment module, thereby reducing the ping-pong phenomenon of the VIP user. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A flow chart of a task-oriented 5G cell switching method provided in Example 1 of the present invention. DETAILED DESCRIPTION

[0041] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0042] Embodiment 1:

[0043] A task-oriented 5G cell switching method, comprising:

[0044] The base station divides user types into VIP users and ordinary users according to task requirements;

[0045] The base station-side network management configures the VIP user's IMSI, IMEI or MAC address or any other unique identification number of the mobile device to the base station;

[0046] After receiving the user's handover request, the base station implements the cell handover operation; the handover threshold of VIP users is greater than that of ordinary users, and the handover threshold of VIP users is greater than 3dB, that is, when the power of the neighboring cell is 3dB higher than the power of the source cell, the VIP user handover is triggered;

[0047] The base station side can determine the user type based on the above-mentioned unique identification number and match the corresponding switching threshold according to the user type. Specifically, if the base station side determines that the user to be switched is a VIP user, the target cell transmission power is increased. In this way, the RSRP (reference signal received power) received by the VIP user can be improved and the probability of the VIP user switching out of the target cell can be reduced.

[0048] The above user types can be reasonably handled according to specific working conditions. For example, in military application scenarios, users who issue combat command tasks can be classified as VIP users, and users who perform daily patrol tasks can be classified as ordinary users. In large-scale exhibition scenarios, exhibitors can be classified as VIP users to facilitate their AR and VR demonstrations, and ordinary exhibitors can be classified as ordinary users to ensure their basic Internet access needs. The essence of this method of dividing user types is to classify users with relatively important tasks as VIP users and other users as ordinary users based on the differentiated needs of users for the network, and the importance of the task can be reasonably determined according to the specific working conditions.

[0049] It is understandable that, after setting users who perform important tasks (such as issuing combat orders) as VIP users according to the above method, the ping-pong phenomenon of VIP users can be reduced, and the switching stability and transmission rate of users who perform important tasks can be effectively guaranteed. The above method does not affect the timeliness of switching of VIP users, which is very important in tasks that require time accuracy. It also avoids the need to accurately obtain the real-time longitude and latitude information of the area and the user when dividing the ping-pong suppression area, resulting in high requirements for the process and performance of FPGA, DSP chips, etc. Taking the ship environment as an example, through this method, it is possible to achieve no hardware equipment upgrades, and only by optimizing the switching scheme of the existing ship 5G network, the ping-pong phenomenon of users in important application systems during the switching process can be greatly reduced.

[0050] As an improvement, refer to Figure 1 If the base station determines that the switched user is a common user, the target cell transmission power is maintained.

[0051] As a further improvement, refer to Figure 1 After the user switching is completed, the base station determines whether there are still VIP users in the source cell. If there are still VIP users in the source cell, the transmission power of the source cell is maintained. More specifically, after the user switching is completed, if there are no VIP users in the source cell, the transmission power of the source cell is reduced to reduce the probability of VIP users switching back to the source cell.

[0052] It is worth noting that the above method has good application prospects in addition to the ship communication environment with complex construction structure and relatively closed space, and also has good application prospects in the case where there are significant differences in the importance of users and the demand for the network.

[0053] Embodiment 2:

[0054] A task-oriented 5G cell switching device is provided on the basis of the first embodiment, and the cell switching device includes:

[0055] A setting module, used to classify user types into VIP users and ordinary users, and set the switching threshold of VIP users to be greater than the switching threshold of ordinary users;

[0056] A matching module is used to match the corresponding switching thresholds between VIP users and ordinary users;

[0057] A measurement module, used to measure the transmit power of a cell;

[0058] A determination module, used to determine the measurement result of the cell;

[0059] A request module, configured to send a handover request to a target cell in response to the measurement result being greater than the handover threshold;

[0060] The switching module is used to switch the network connection of the user from the source cell to the target cell.

[0061] Specifically, the cell switching device further includes a metering module and an adjustment module. The metering module is used to measure the number of VIP users in the source cell; and the adjustment module is used to adjust the transmission power of the target cell and the source cell.

[0062] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A task-oriented 5G cell switching method, characterized in that: include: The base station divides user types into VIP users and ordinary users according to task requirements; The network management on the base station side configures the unique identification number of the VIP user's mobile device to the base station; After receiving the switching request from the user, the base station side implements the cell switching operation; the switching threshold of the VIP user is greater than the switching threshold of the ordinary user; If the base station determines that the user being handed over is a VIP user, the transmission power of the target cell is increased.

2. A task-oriented 5G cell switching method according to claim 1, characterized in that: If the base station determines that the user being handed over is a common user, the transmission power of the target cell is maintained.

3. A task-oriented 5G cell switching method according to claim 1 or 2, characterized in that: After the user switch is completed, it also includes: The base station determines whether there are still VIP users in the source cell; If the base station determines that there are still VIP users in the source cell, the transmission power of the source cell is maintained.

4. A task-oriented 5G cell switching method according to claim 1 or 2, characterized in that: After the user switch is completed, it also includes: The base station determines whether there are still VIP users in the source cell; If the base station determines that there is no VIP user in the source cell, the transmission power of the source cell is reduced.

5. A task-oriented 5G cell switching method according to claim 1 or 2, characterized in that: The switching threshold of the VIP user is greater than 3dB.

6. A task-oriented 5G cell switching method according to claim 1 or 2, characterized in that: The base station side determines the user type according to the unique identification number, and matches the corresponding switching threshold according to the user type.

7. A task-oriented 5G cell switching device, characterized in that: The cell switching device comprises: A setting module, used to classify user types into VIP users and ordinary users, and set the switching threshold of VIP users to be greater than the switching threshold of ordinary users; A matching module is used to match the corresponding switching thresholds between VIP users and ordinary users; A measurement module, used to measure the transmit power of a cell; A determination module, used to determine the measurement result of the cell; A request module, configured to send a handover request to a target cell in response to the measurement result being greater than the handover threshold; The switching module is used to switch the network connection of the user from the source cell to the target cell.

8. A task-oriented 5G cell switching device according to claim 7, characterized in that: It also includes a metering module for measuring the number of VIP users in the source cell; The adjustment module is used to adjust the transmission power of the target cell and the source cell.

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