CN104427508B - A kind of method for adjusting wireless network - Google Patents

Abstract

A method for adjusting a wireless network, the method comprising: judging whether the UE satisfies communication requirements according to the average throughput of a terminal UE at a fixed location, the downlink signal strength of the UE, and the downlink signal quality of the UE; If the communication requirement is met, the UE communicates through an unadjusted wireless network; if the UE does not meet the communication requirement, the UE adjusts the wireless network before making the judgment. After applying the embodiment of the present invention, the wireless network can be precisely adjusted, thereby ensuring the normal use of the wireless network by the user.

Description

A method of adjusting wireless network

technical field

The present application relates to the technical field of communications, and more specifically, to a method for adjusting a wireless network.

Background technique

In the wireless network, by modeling the mixed data services including data acquisition and video transmission services, the working status of users in mobile communication is simulated to obtain network performance and service performance under different network configurations. Output the coverage effect and capacity distribution to judge whether the wireless network solution meets the requirements. On the basis of meeting the requirements and saving costs, adjust the planning parameters to optimize the network performance such as coverage and capacity of the wireless network.

Current methods for analyzing wireless networks include dynamic system simulation and static system simulation.

Dynamic system simulation means that in a certain cellular network topology, a series of events such as power-on, power-off, movement, cell search, cell update, service arrival, service data generation and transmission, and information interaction occur in user terminals according to certain rules. By analyzing the movement of terminals in continuous time slots, the service performance can be understood. Because a large number of data calculations will be generated in the process of dynamic system simulation and these data need to be stored. Therefore, dynamic system simulation has the disadvantages of huge amount of calculation, low operating efficiency, and poor timeliness, so it is rarely used.

Static system simulation, also known as Monte Carlo simulation, its central idea is to analyze business performance through snapshots. Each snapshot randomly generates a certain distribution of terminals, and the data rate is given according to the business nature of the terminals in this snapshot through a scheduling algorithm. Finally, the performance of the wireless communication network is obtained through the statistical analysis of multiple snapshots. Compared with dynamic system simulation, static simulation has a small amount of calculation and is easy to implement, and is widely used in current wireless networks.

However, in a power communication system or a petroleum communication system, the location information of the terminal is fixed. In most cases, the terminal information, especially the oil well information of the petroleum system, can be obtained directly during site survey. In the prior art, a certain distribution of terminals is randomly generated in the wireless network, and the height information of the terminals, the transmission power and other information configurations are consistent, so the status of the terminals in the wireless network cannot be accurately reflected, so the wireless network cannot be adjusted accurately, and the wireless network cannot be accurately adjusted. Ensure that users can use the wireless network normally.

Contents of the invention

The embodiment of the present invention proposes a method for adjusting a wireless network, which can accurately adjust the wireless network, thereby ensuring that the user can use the wireless network normally.

The technical scheme of the embodiment of the present invention is as follows:

A method of adjusting a wireless network, the method comprising:

judging whether the UE satisfies the communication requirements according to the average throughput of the UE at the fixed location, the downlink signal strength of the UE, and the downlink signal quality of the UE;

The UE meets the communication requirements, then the UE communicates through the unadjusted wireless network;

If the UE does not meet the communication requirements, the UE adjusts the wireless network before performing the judgment.

Before the judgment, it further includes determining the average throughput of the UE, the downlink signal strength of the UE, and the downlink signal quality of the UE.

The determining the average throughput of the UE includes:

Obtaining the physical downlink shared channel PDSCH signal-to-noise ratio SINR during this scheduling according to the service type of the UE and the preset priority;

Determine the downlink peak rate of the UE by PDSCH SINR;

The average throughput of the UE is obtained according to the downlink peak rate of the UE within a time period.

The determining the downlink signal strength of the UE includes:

The downlink signal strength of the UE is equal to the transmit power of the base station plus the antenna gain minus the path loss.

The determining the downlink signal quality of the UE includes:

The downlink signal quality of the UE is equal to the strength of the useful signal divided by the sum of the strength of the interference signal and the noise.

For non-video data services, the judging whether the UE meets the communication requirements according to the average throughput of the UE, the downlink signal strength of the UE, and the downlink signal quality of the UE includes:

When the average throughput of the UE is greater than or equal to 2k transmission bits per second bps, the downlink signal strength of the UE is greater than or equal to 110 decibel millivolts dBm, and the downlink signal quality of the UE is greater than or equal to 5 decibels dB, the UE meets communication needs;

Otherwise, the UE does not meet the communication requirements.

For video data services, the judging whether the UE meets the communication requirements according to the average throughput of the UE, the downlink signal strength of the UE, and the downlink signal quality of the UE includes:

When the average throughput of the UE is greater than or equal to 300kbps, the downlink signal strength of the UE is greater than or equal to 110dBm, and the downlink signal quality of the UE is greater than or equal to 5dB, the UE meets the communication requirements;

Otherwise, the UE does not meet the communication requirements.

The adjustment includes: adjusting the maximum transmit power of the UE with a step size of 1 dBm, or adjusting the antenna of the UE.

It can be seen from the above technical solutions that in the embodiment of the present invention, it is judged whether the UE meets the communication requirements according to the average throughput of the UE at a fixed location, the downlink signal strength of the UE, and the downlink signal quality of the UE; If the UE does not meet the communication requirements, then the UE performs the judgment after adjusting the wireless network. Since it can be judged whether the communication requirement is met according to the network signal of the UE, the wireless network can be precisely adjusted, thereby ensuring the normal use of the wireless network by the user.

Description of drawings

FIG. 1 is a schematic flowchart of a method for adjusting a wireless network.

Detailed ways

In order to make the object, technical solution and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

In the embodiment of the present invention, the average throughput, downlink signal strength and downlink signal quality of UEs at fixed locations are used to determine whether the UE meets the communication requirements, and if not, the wireless network is adjusted to ensure the normal use of the wireless network by users.

Referring to accompanying drawing 1, it is a schematic flow diagram of a method for adjusting a wireless network, which specifically includes the following steps:

101. Determine whether the UE meets a communication requirement according to the average throughput of the UE at a fixed location, the downlink signal strength of the UE, and the downlink signal quality of the UE.

In the present invention, since the network signal of the UE can be controlled, it can be determined whether the wireless network needs to be adjusted by judging whether the average throughput, downlink signal strength and downlink signal quality included in the network signal meet the communication requirements.

The average throughput is based on the UE's service type and preset priority, according to the preset resource allocation algorithm, allocate resource blocks (RB) for the terminal, and determine the PDSCH SINR and physical uplink shared channel (PUSCH) during this scheduling SINR. Among them, the service type includes two types of non-video data service and video data service. From the preset PDSCH SINR and PUSCH SINR and data transmission rate mapping table, respectively look up the downlink peak rate and uplink peak rate corresponding to the terminal. According to the downlink peak rate and uplink peak rate of each scheduled terminal at a specified time, the downlink average throughput and uplink average throughput of the cell are respectively determined.

The downlink signal strength is equal to the transmit power of the base station plus the antenna gain minus the path loss.

Downlink signal quality is equal to the strength of useful signal divided by the sum of interference signal strength and noise. Wherein, the useful signal is a signal carrying information that one or more receivers are looking for.

For different business types, their communication requirements are also different. For non-video data services, the communication requirements are: average throughput greater than or equal to 2k bps, downlink signal strength greater than or equal to 110dBm, and downlink signal quality greater than or equal to 5dB, when the three parameters of the UE meet the above conditions, the UE meets communication needs.

For the video data service, its data volume is far greater than that of the non-video data service, so a larger average throughput is required. At this time, the communication requirements are: when the average throughput is greater than or equal to 300kbps, the downlink signal strength is greater than or equal to 110dBm, and the downlink signal quality is greater than or equal to 5dB, when the three parameters of the UE meet the above conditions, the UE meets the communication requirements.

102. The UE meets the communication requirement, and the UE communicates through the unadjusted wireless network.

If the UE meets the communication requirements, it means that the UE can communicate normally through the existing wireless network, that is, the unadjusted wireless network.

103. If the UE does not meet the communication requirements, the UE adjusts the wireless network before making the determination.

If the UE does not meet the communication requirements, it means that the UE cannot communicate normally through the existing wireless network, and then step 101 needs to be adjusted after the wireless network needs to be adjusted.

When the parameters of the base station are determined, any of the following methods can be used to adjust the wireless network.

(1) Adjusting the maximum transmit power of the terminal, with a step size of 1dBm, can enhance the received signal strength of the uplink, thereby increasing the uplink transmission rate and achieving the purpose of increasing the average throughput of the UE.

(2) Adjust the antenna of the terminal.

Under the condition that the customer's budget allows, choose the antenna with the largest gain as much as possible, which can not only enhance the received signal strength and signal quality of the downlink, but also enhance the received signal strength of the uplink and increase the transmission rate of the uplink. Or adjust the station height of the terminal transmitting antenna, with a step size of 1m, which can not only enhance the downlink received signal strength and signal quality, but also enhance the uplink received signal lightness and increase the uplink transmission rate.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (7)

1. A method for adjusting a wireless network, characterized in that the method comprises: judging whether the UE satisfies the communication requirements according to the average throughput of the UE at the fixed location, the downlink signal strength of the UE, and the downlink signal quality of the UE; The UE meets the communication requirements, then the UE communicates through the unadjusted wireless network; The UE does not meet the communication requirements, and then the UE adjusts the wireless network before making the judgment; in, The adjustment includes: adjusting the maximum transmit power of the UE with a step size of 1 dBm, or adjusting the antenna of the UE. 2. The method for adjusting a wireless network according to claim 1, further comprising determining the average throughput of the UE, the downlink signal strength of the UE, and the downlink signal quality of the UE before the judgment. 3. The method for adjusting a wireless network according to claim 2, wherein said determining the average throughput of said UE comprises: Obtaining the physical downlink shared channel PDSCH signal-to-noise ratio SINR during this scheduling according to the service type of the UE and the preset priority; Determine the downlink peak rate of the UE by PDSCH SINR; The average throughput of the UE is obtained according to the downlink peak rate of the UE within a time period. 4. The method for adjusting a wireless network according to claim 2, wherein the determining the downlink signal strength of the UE comprises: The downlink signal strength of the UE is equal to the transmit power of the base station plus the antenna gain minus the path loss. 5. The method for adjusting a wireless network according to claim 2, wherein the determining the downlink signal quality of the UE comprises: The downlink signal quality of the UE is equal to the strength of the useful signal divided by the sum of the strength of the interference signal and the noise. 6. The method for adjusting a wireless network according to claim 1, wherein, for non-video data services, the average throughput of the UE, the downlink signal strength of the UE and the downlink signal quality of the UE Judging whether the UE meets the communication requirements includes: When the average throughput of the UE is greater than or equal to 2k transmission bits per second bps, the downlink signal strength of the UE is greater than or equal to 110 decibel millivolts dBm, and the downlink signal quality of the UE is greater than or equal to 5 decibels dB, the UE meets communication needs; Otherwise, the UE does not meet the communication requirements. 7. The method for adjusting a wireless network according to claim 1, wherein, for video data services, the judgment is based on the average throughput of the UE, the strength of the downlink signal of the UE, and the quality of the downlink signal of the UE Whether the UE meets the communication requirements includes: When the average throughput of the UE is greater than or equal to 300kbps, the downlink signal strength of the UE is greater than or equal to 110dBm, and the downlink signal quality of the UE is greater than or equal to 5dB, the UE meets the communication requirements; Otherwise, the UE does not meet the communication requirements.