CN116887288A - 5G network deployment method under special scene - Google Patents

Abstract

The invention provides a 5G network deployment method in a special scene, which can effectively avoid ping-pong switching and co-channel interference in the special scene. The invention adopts a cell merging and switching band adjusting mode to solve the problems of common-frequency interference and ping-pong switching in a complex field; the problem of co-channel interference among a plurality of pRRUs in a large open scene is solved by adopting the modes of pRRU cross deployment, cell merging and switching band adjustment, and the signal quality of the open scene is improved. Can avoid the user to experience the speed decline because of the same frequency interference under the complicated scene of structure to and because of avoiding the business delay increase that the ping pong switches and lead to, can avoid the user to experience the speed decline because of the same frequency interference under the open scene.

Description

A 5G network deployment method in a special scenario

Technical field

The present invention relates to the field of wireless communication technology, and specifically relates to a 5G network deployment method in a special scenario.

Background technique

Indoor distribution is an important application scenario for 5G. With the continuous development and popularization of 5G technology, the proportion of indoor services is getting higher and higher. According to relevant statistics, 70% of services in the 4G era occur indoors, while more than 85% of 5G applications will occur indoors. . The 5G frequency band is relatively high, and the transmission loss including network penetration loss will be very large. How to effectively solve the 5G indoor scene coverage has become an urgent problem to be solved.

Currently, in closed environments and compartment scenarios, 5G networks usually adopt the traditional room-based extended pico base station architecture, that is, a BBU splits multiple radio frequency units (pRRU) through RHUB, and each radio frequency unit covers a compartment or Corridor channels and pRRUs can be configured with cell merging according to scenario requirements to reduce co-channel interference and the number of handovers. Independent pRRUs are used for coverage between layers to ensure the signal coverage quality of each layer.

The existing room-based architecture usually has the following problems in special scenarios: in complex scenarios with many rooms in a closed environment and irregularly designed passages and corridors, users are prone to ping-pong switching, which affects service latency; in large open spaces Multiple pRRUs are required for coverage scenarios, and co-channel interference between multiple pRRUs is more serious; partition objects with good electromagnetic shielding effects, such as doors, curtains, etc., have sudden changes in signal quality on both sides of the partition in the switch scenario, causing User experience drops sharply; in scenarios where inter-layer signal penetration loss is small, inter-layer pRRU may cause serious co-channel interference.

Contents of the invention

In view of this, the present invention proposes a 5G network deployment method in special scenarios, which can effectively avoid ping-pong handover and co-channel interference in special scenarios.

In order to achieve the above objects, the technical solution of the present invention is:

A method of deploying 5G indoor network in special scenarios, including deployment in complex scenarios and deployment in open scenarios;

Among them, the deployment method in complex scenarios is: adjacent pRRUs are merged into one cell, and the signal-to-noise ratio of the signals in the merged area and overlapping coverage area is improved; by adjusting the pRRU transmit power, the handover zone is adjusted to be relatively open and structurally relatively clear. Regular areas to avoid ping-pong switching of overlapping coverage areas;

The deployment method in an open scenario is: multiple pRRUs are deployed cross-deployed on both sides; cells are merged between pRRUs to ensure that only one cell provides coverage in an open scenario.

Among them, during the deployment in the open scene, the switching zone between the open scene cell and other cells is adjusted to the area outside the open scene to ensure that there is no overlapping coverage area of cells in the open scene.

It also includes the deployment in the electromagnetic shielding barrier scenario. The specific method is as follows: pRRUs are deployed on both sides of the barrier to ensure the signal coverage quality on both sides when the barrier is closed; pRRUs on both sides of the barrier are merged to avoid the situation when the barrier is opened. The pRRUs on both sides have co-channel interference.

This also includes deployment in scenarios with less wear and tear, specifically inter-layer pRRU deployment.

Among them, the inter-layer pRRU deployment is specifically: deploying a pRRU device every other layer, and no pRRU layer is covered by adjacent layer pRRUs; adjacent pRRUs are deployed at different frequencies; adjust the power and adjust the switching band to any layer In the corridor area, avoid ping-pong switching in the turning area of the stairwell.

Beneficial effects:

1. The present invention is a 5G indoor network deployment method in a special scenario. It uses cell merging and handover band adjustment to solve co-channel interference and ping-pong handover problems in complex fields; it uses pRRU cross-deployment, cell merging and handover band adjustment. This method solves the problem of co-channel interference between multiple pRRUs in large open scenes and improves the signal quality in open scenes. In scenarios with complex structures, it can prevent users from experiencing rate drops due to co-channel interference and from increasing service delays caused by ping-pong handovers. In open scenarios, it can prevent users from experiencing rate drops due to co-channel interference.

2. The present invention adopts the independent deployment of multiple pRRUs and cell merging methods to solve the problem of signal quality mutation on both sides of the barrier and sudden drop in user experience in the scenario of electromagnetic shielding barriers. In the scenario of electromagnetic shielding barriers, it can avoid users from switching on and off Intervals cause network call drops or a sharp drop in experience speed.

3. The present invention adopts pRRU deployment in separate layers and adjusts the switching band method to solve the problem of inter-layer co-channel interference and the problem of ping-pong switching in stairwells in scenarios where signal penetration loss is small, and can save network deployment in scenarios where inter-layer penetration loss is small cost and reduce inter-layer co-channel interference, improving user experience speed.

Description of the drawings

Figure 1 is a schematic diagram of pRRU deployment in complex scenarios of the present invention.

Figure 2 is a schematic diagram of pRRU deployment in an open scenario according to the present invention.

Figure 3 is a schematic diagram of pRRU deployment in the electromagnetic shielding barrier scenario of the present invention.

Figure 4 is a schematic diagram of inter-layer pRRU deployment in a scenario with small wear loss according to the present invention.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and examples.

The present invention provides a 5G network deployment method in special scenarios, including deployment in complex scenarios, deployment in open spaces, deployment in electromagnetic shielding and barrier scenarios, and deployment in scenarios with small wear and tear.

Among them, the deployment method in complex scenarios is: adjacent pRRUs should be merged into one cell as much as possible to avoid co-channel interference in overlapping coverage areas, and improve the signal-to-noise ratio of signals in the merged area and overlapping coverage areas; by adjusting the pRRU transmit power , try to adjust the switching zone to a relatively open area with a regular structure to avoid causing ping-pong switching in overlapping coverage areas. The deployment in complex scenarios is shown in Figure 1.

The deployment method in an open scenario is: multiple pRRUs are deployed cross-deployed on both sides to avoid weak coverage on one side; pRRUs are merged to ensure that only one cell is covered in an open scenario to avoid co-channel interference between pRRUs and improve openness. Regional signal signal-to-noise ratio; the switching zone between the open scene cell and other cells is adjusted to the area outside the open scene to ensure that there is no overlapping coverage area of cells in the open scene and improve the signal-to-noise ratio in the open area. The deployment in the open scene is shown in Figure 2.

The deployment method in the electromagnetic shielding barrier scenario is: pRRUs are deployed on both sides of the barrier to ensure the signal coverage quality on both sides when the barrier is closed; pRRUs on both sides of the barrier are merged to avoid the same frequency when the barrier is open. interference, causing the signal-to-noise ratio to drop sharply. The deployment in the electromagnetic shielding barrier scenario is shown in Figure 3.

The deployment method in scenarios with low wear loss is inter-layer pRRU deployment, specifically: deploy a pRRU device every other layer, and the pRRU layer without pRRU is covered by adjacent layer pRRU, which saves deployment costs and avoids the same frequency of pRRU between layers. Interference; adjacent pRRUs are deployed in different frequencies to avoid co-channel interference between floors; adjust the power and adjust the switching band to the corridor area of any floor to avoid ping-pong switching in the turning area of the stairwell. The inter-layer pRRU deployment in a scenario with small wear loss is shown in Figure 4.

To sum up, the above are only preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims (5)

1. The 5G indoor network deployment method under the special scene is characterized by comprising deployment under the complex scene and deployment under the open scene;

the deployment mode under the complex scene is as follows: adjacent pRRUs are combined into a cell, and the signal to noise ratio of signals of the combined area and the overlapped coverage area is improved; by adjusting pRRU transmitting power, the switching band is adjusted to be relatively open and structurally regular areas as much as possible, so that ping-pong switching of overlapping coverage areas is avoided;

the deployment mode under the open scene is as follows: two sides of the pRRUs are arranged in a crossing way; cell merging is carried out between pRRUs, so that only one cell is covered in an open scene.

2. The method of claim 1, wherein in deployment in an open scene, the open scene cell and other cell handover bands are adjusted to areas outside the open scene, ensuring that no cell overlapping coverage areas occur in the open scene.

3. The method of claim 1 or 2, further comprising deployment in an electromagnetic shielding barrier scenario by: pRRU is respectively deployed at two sides of the barrier, so that the signal coverage quality of the two sides is ensured when the barrier is closed; cell merging is carried out on pRRUs on two sides of the gear, and common-frequency interference of pRRUs on two sides when the gear is opened is avoided.

4. The method according to claim 1 or 2, further comprising deployment in less lossy scenarios, in particular interlaminar pRRU deployment.

5. The method of claim 4, wherein the interlaminar pRRU deployment is specifically: every other layer is deployed with pRRU equipment, and no pRRU layer is covered by pRRU of adjacent layers; different frequency deployment of adjacent pRRUs; and adjusting the power, and adjusting the switching belt to any corridor area to avoid ping-pong switching in the turning area of the stairwell.