TWI678943B - System and method for optimizing group capacity of mobile base station devices - Google Patents

Abstract

The invention provides a mobile base station device group capacity optimization system and method. The foregoing system includes a plurality of mobile base station devices and a management device. The management device is connected to the mobile base station device and sets a list of base station groups including base station information and load information of the mobile base station device, wherein the management device marks the load amount Mobile base station devices that exceed the threshold and configure the communication coverage settings of the mobile base station device and other mobile base station devices in the same group. Through the above configuration, the present invention can effectively balance the load of multiple mobile base station devices in a group and optimize the overall network capacity.

Description

   System and method for optimizing group capacity of mobile base station devices   

The invention relates to a mobile base station device management technical solution, in particular to a management technical solution that can optimize the mobile base station device group capacity.

In order to provide users with better wireless communication services, most telecommunication service providers will increase the transmission volume of wireless communication by increasing the number and density of mobile base station devices.

However, in a network environment in which mobile base station devices are densely deployed, with the rapid increase of user transmission traffic, the transmission traffic of other users located in the same mobile base station will be affected to a considerable extent. A mobile base station cannot change its communication coverage at will, and often causes a specific mobile base station device to be fully loaded, while the adjacent mobile base station service load is light, but it cannot share the dilemma of its transmission volume.

In summary, how to provide a solution that can solve the foregoing problems is a technical problem that needs to be solved in the art.

In order to solve the problems disclosed previously, the object of the present invention is to provide a technical solution capable of optimizing the capacity of a mobile base station device group.

To achieve the above objective, the present invention proposes a mobile base station device group capacity optimization system. The foregoing system includes a plurality of mobile base station devices and a management device. The management device is connected to the mobile base station device and sets a list of base station groups including base station information and load information of the mobile base station device, wherein the management device marks the load amount Mobile base station devices that exceed the threshold and configure the communication coverage settings of the mobile base station device and other mobile base station devices in the same group.

To achieve the above object, the present invention further provides a method for optimizing the capacity of a mobile base station device group. The foregoing method is applied to a mobile base station device group capacity optimization system, and the mobile base station device group capacity optimization system includes a plurality of mobile base station devices and a management device connected to the mobile base station device. The foregoing method includes the following steps: A list of base station groups containing base station information and load information for mobile base station devices, and mobile base station devices that cause the management device to mark a load that exceeds a threshold, and for mobile base station devices and other mobile bases in the same group The communication coverage settings of each device are configured.

In summary, the present invention groups the base stations and adjusts the base station coverage adjustment according to the base station's traffic load, so as to balance the load and optimization of multiple mobile base station devices in the group. Overall network capacity.

Communication coverage of BS1 ~ BS3‧‧‧ mobile base station devices

1‧‧‧ mobile base station device group capacity optimization system

11‧‧‧ mobile base station device

12‧‧‧ management device

2‧‧‧user terminal device

FIG. 1 is a block diagram of a mobile base station device group capacity optimization system according to a first embodiment of the present invention.

FIG. 2 is a flowchart of a method for optimizing a group capacity of a mobile base station device according to a second embodiment of the present invention.

FIG. 3 is a schematic diagram of an exemplary application scenario of the present invention.

FIG. 4 is a flowchart of establishing a base station group list by the mobile base station device group capacity optimization system of the present invention.

FIG. 5 is a flowchart of a transmission power adjustment performed by the mobile base station device group capacity optimization system of the present invention.

FIG. 6 is a schematic diagram of a mobile base station device group capacity optimization application scenario.

The following describes specific embodiments to illustrate the implementation of the present invention, but it is not intended to limit the scope of the present invention.

Please refer to FIG. 1, which is a block diagram of a mobile base station device group capacity optimization system 1 according to a first embodiment of the present invention. The aforementioned system includes a plurality of mobile base station devices 11 and a management device 12. The management device 12 is connected to the mobile base station device 11 and sets up a base station group list including base station information and load information of the mobile base station device 11, wherein the management device 12 marks the mobile base station device 11 whose load exceeds a threshold value. And configure the communication coverage settings of the mobile base station device 11 and other mobile base station devices 11 in the same group. The connection method between the management device 12 and the mobile base station device 11 can be directly connected or via the network, and can be wired or wireless, so that the management device 12 can collect the base station information and load information of the mobile base station device 11 and can configure the mobile Coverage setting of the base station device 11.

In another embodiment, the aforementioned management device 12 configures the communication coverage settings of the mobile base station devices 11 located in the same group with a relatively light load.

In another embodiment, the aforementioned communication coverage setting is to reduce the communication coverage of the mobile base station device 11 whose load exceeds a threshold value, and to increase the communication coverage of the mobile base station device 11 whose load is relatively light.

In another embodiment, the aforementioned management device 12 obtains the wireless measurement report of the end-use device within the service range through the mobile base station device 11 to determine the load level of the mobile base station device 11 and the signal strength and quality of the end-use device.

In another embodiment, the coverage adjustment of the aforementioned communication coverage setting is adjusting the transmission power of the base station unit bandwidth or adjusting the downward tilt angle of the directional antenna of the base station or both.

Please refer to FIG. 2, which is a flowchart of a method for optimizing a group capacity of a mobile base station device according to a second embodiment of the present invention. The foregoing method is applied to a mobile base station device group capacity optimization system, and the mobile base station device group capacity optimization system includes a plurality of mobile base station devices and a management device connected to the mobile base station devices. The aforementioned method includes the following steps:

S101: Let the management device set a base station group list including base station information and load information of the mobile base station device.

S102: Make the management device mark the mobile base station device whose load exceeds the threshold, and configure the communication coverage settings of the mobile base station device and other mobile base station devices in the same group.

In another embodiment, the management device of the foregoing method configures the communication coverage setting of mobile base station devices located in the same group with a relatively light load.

In another embodiment, the communication coverage setting of the aforementioned method is to reduce the communication coverage of the mobile base station device whose load exceeds a threshold value, and to increase the communication coverage of the mobile base station device whose load is relatively light.

In another embodiment, the management device of the foregoing method obtains the wireless measurement report of the end-use device within the service range through the mobile base station device to determine the load of the mobile base station device and the signal strength and quality of the end-use device.

In another embodiment, the coverage adjustment of the communication coverage setting of the foregoing method is to adjust the transmission power of the unit bandwidth of the base station or adjust the downward tilt angle of the directional antenna of the base station or both.

In the following, the present invention is described by using the mobile base station device group capacity optimization system 1 of the first embodiment as an example (FIG. 3 to FIG. 6), but the mobile base station device 11 group capacity optimization method of the second embodiment is also the same or similar. Technical effect. The present invention is mainly applied to a network environment where there are multiple mobile base station devices 11 adjacent to each other, and the main purpose is to improve the system network capacity and the overall user transmission rate.

Please refer to the description of FIG. 1 and FIG. 3 together. FIG. 3 is a schematic diagram of an example application scenario of the present invention. In this application scenario example, the communication coverage areas (BS1 ~ BS3) of multiple mobile base station devices 11 are adjacent and most of the coverage areas do not overlap. When the transmission traffic load of a base station cell is overloaded and When the user terminal device 2 has a large number of connections and the load of other base station cells is relatively light, the transmission power of the unit bandwidth of the mobile base station device 11 is adjusted or the downward tilt angle of the directional antenna of the base station or the above is adjusted. Both are adjusted at the same time to optimize the coverage of multiple mobile base station devices 11 to balance the network traffic load and optimize the network capacity of the overall system.

First, the mobile base station device group capacity optimization system 1 performs the following steps (shown in FIG. 4) to establish a base station group list: S201. Use an environmental scan (REM) between mobile base station devices 11 to obtain neighboring bases. Station signal strength RSRP ... and other related information; S202, the wireless measurement report (Measurement Report) reported by the user terminal device 2 (UE), by counting the number of handovers between the base station and neighboring base stations> N times; S203, will Group at least two base stations on the network to create a base station group list.

After the base station group list for capacity optimization is established, the load information of multiple mobile base station devices 11 in the same group is obtained centrally and cyclically / non-periodically, including the physical resource blocks that have been used Ratio (PRB utilization%), user terminal device 2 connection number (active UE number), etc. to determine whether the load of a certain mobile base station device 11 exceeds a threshold (reload), and other actions in its group list When the base station device 11 is at a relatively light load, a coverage adjustment calculation is performed to optimize the network capacity of multiple mobile base station devices 11 in the same group.

The aforementioned periodic and centralized centralized mobile base station device 11 information and load information include the following: (1) Mobile base station device 11 cell identification code, such as: CID, Serial number; (2) Transmission power, such as: TX power , Reference signal power; (3) Use frequency and bandwidth: Carrier frequency, Bandwidth usage (4) Air interface resource utilization rate: UL / DL total PRB utilization%; (5) Number of service users: Average / Max number of active UE number on the UL / DL; and (6) service rate: Average / Max UL / DL cell throughput related parameters.

The communication coverage can be adjusted as follows: (1) Adjust the transmission power of the unit bandwidth of the mobile base station device 11; (2) Adjust the downward tilt angle of the directional antenna of the mobile base station device 11. If the coverage adjustment method is to adjust the transmission power of the mobile base station device 11, the load information of the mobile base station device 11 and the wireless signal status (RSRP_serving, RSRP_detected in the wireless measurement report (UE Measurement Report) of the user terminal device 2) …) As a basis, evaluate the number of user terminal devices 2 (UE) to be uninstalled, and calculate the transmission power value ΔTX that needs to be adjusted for multiple mobile base station devices 11, and instruct the same mobile base station device 11 group At least one mobile base station device 11 performs transmission power adjustment. The operation steps are illustrated in Figure 5 as follows:

S301: Obtain load information of multiple mobile base station devices 11 in the same group, such as: PRB utilization, active UE number, etc.

S302: Determine whether the load of a certain mobile base station device 11 exceeds a threshold value (heavy load). The heavy mobile base station device 11 may be plural, and other mobile base station devices 11 in its group list are relatively lightly loaded.

S303: Based on the load information of the mobile base station device 11 and the wireless signal status in the wireless measurement report of the user terminal device 2, evaluate the number of user terminals to be unloaded to calculate the transmission power value that needs to be adjusted for multiple mobile base station devices 11.

S304: Adjust the unit bandwidth and transmission power of at least one mobile base station in the same base station group to optimize the system network capacity.

The aforementioned coverage adjustment is performed by the management device 12. The management device 12 may optionally be implemented by a centralized self-organizing network server (CSON server), but the centralized self-organizing network server is not limited to a single physical network device, as long as the Those that provide such centralized processing and computing functions are included in the definition of centralized self-organizing web servers.

Please refer to the description of FIG. 1 and FIG. 6. FIG. 6 is a schematic diagram of a group capacity optimization application scenario of the mobile base station device 11. By periodically adjusting the coverage area (BS1 ~ BS3) of the mobile base station device 11, the coverage area (BS2) of the mobile base station device 11 with a heavy load and a large number of user terminal devices 2 connections is appropriately reduced, and the load is appropriately reduced. The coverage area (BS1, BS3) of the relatively lightly loaded mobile base station device 11 is appropriately expanded, so that the user terminal device 2 located on the edge of the cell of the mobile base station device 11 (BS2) with a heavy load is unloaded to the vicinity of the light load The base station device cells can increase the average transmission rate of each user terminal device 2 and optimize the coverage and capacity of the overall system.

The above detailed description is a specific description of a feasible embodiment of the present invention, but this embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or change that does not depart from the technical spirit of the present invention should be included in Within the scope of the patent in this case.

Claims (10)

A mobile base station device group capacity optimization system includes: a plurality of mobile base station devices; and a management device connected to the mobile base station devices and setting a base station information and load information including the mobile base station devices. A base station group list, in which the management device marks the mobile base station device whose load exceeds a threshold, and configures the communication coverage settings of the mobile base station device and other such mobile base station devices located in the same group, Among them, the establishment of the base station group list is to use the environmental scanning information between the mobile base station devices to obtain the relative signal strength of the neighboring mobile base station devices, the wireless measurement report reported by the user terminal device, or by counting these actions. The number of handovers between the base station device and the neighboring mobile base station device to group the mobile base station devices. The mobile base station device group capacity optimization system according to claim 1, wherein the management device configures the communication coverage setting of the mobile base station device located in the same group with a relatively light load. The mobile base station device group capacity optimization system according to claim 2, wherein the communication coverage setting is to reduce the communication coverage of the mobile base station device whose load exceeds a threshold value, and to increase the load to a relatively light load of the operation Communication for base station devices is covered. The mobile base station device group capacity optimization system according to claim 1, wherein the management device obtains a wireless measurement report of a user-end device within a service range through the mobile base station devices to determine the mobile base station devices. Load situation. The mobile base station device group capacity optimization system according to any one of claims 1 to 4, wherein the coverage adjustment of the communication coverage setting is to adjust the transmission power of the base station unit bandwidth or adjust the downward tilt of the directional antenna of the base station. angle. A mobile base station device group capacity optimization method is applied to a mobile base station device group capacity optimization system. The mobile base station device group capacity optimization system includes a plurality of mobile base station devices and a management device connected to the mobile base station devices. , Including the following steps: making the management device set a base station group list including the base station information and load information of the mobile base station devices; and making the management device mark the mobile base station device whose load exceeds a threshold value, and The communication coverage settings of the mobile base station device and other such mobile base station devices in the same group are configured; wherein, the list of the base station group is obtained by using environmental scanning information between the mobile base station devices to obtain proximity Relative signal strength of mobile base station devices, wireless measurement reports reported by user terminal devices, or by counting the number of handovers between these mobile base station devices and the neighboring mobile base station devices, Grouping. The method for optimizing the capacity of a mobile base station device group according to claim 6, wherein the management device configures the communication coverage setting of the mobile base station device located in the same group with a relatively light load. The mobile base station device group capacity optimization method according to claim 7, wherein the communication coverage setting is to reduce the communication coverage of the mobile base station device whose load exceeds a threshold value, and to increase the load to the mobile base device with a light load The communication of the device is covered. The method for optimizing the capacity of a mobile base station device group as described in claim 6, wherein the management device obtains a wireless measurement report of a user-end device in a service range through the mobile base station device to determine the mobile base station device's capacity. situation. The method for optimizing the capacity of a mobile base station device group according to any one of claims 6 to 9, wherein the coverage adjustment of the communication coverage setting is to adjust the transmission power of the base station unit bandwidth or adjust the downward tilt of the base station directional antenna angle.