A 5G network deployment method in a special scenario

Abstract

The present invention proposes a 5G network deployment method in special scenarios, which can effectively avoid ping-pong switching and co-channel interference in special scenarios. The present invention adopts cell merging and adjustment of switching band to solve the co-channel interference and ping-pong switching problems in complex scenarios; pRRU cross-deployment, cell merging and switching band adjustment are adopted to solve the co-channel interference problem between multiple pRRUs in large open scenes, and improve the signal quality in open scenes. In complex structural scenarios, it can avoid the user's experience rate drop due to co-channel interference, and the increase in service delay caused by avoiding ping-pong switching. In open scenes, it can avoid the user's experience rate drop due to co-channel interference.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technologies, and in particular to a 5G network deployment method in a special scenario. Background Art

[0002] Indoor distribution is an important application scenario for 5G. With the continuous development and popularization of 5G technology, the proportion of indoor business is increasing. According to relevant statistics, 70% of the business in the 4G era occurred indoors, while 5G will exceed 85% of applications 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 coverage of 5G indoor distribution scenarios has become an urgent problem to be solved.

[0003] Currently, in closed environments with compartments, 5G networks usually use the traditional indoor extended pico base station architecture, that is, a BBU is divided into multiple radio frequency units (pRRUs) through RHUB, each radio frequency unit covers a compartment or corridor, and pRRUs can be configured to merge cells according to scenario requirements to reduce co-channel interference and the number of handovers. Independent pRRUs are used to cover each layer to ensure the signal coverage quality of each layer.

[0004] The existing indoor distributed architecture usually has the following problems in special scenarios: in a closed environment with many rooms and complex scenarios with irregular designs of passages and corridors, users are prone to ping-pong switching, which affects service latency; larger open scenes require multiple pRRUs to cover the scene, and the co-channel interference between multiple pRRUs is relatively serious; for partitions with good electromagnetic shielding effects, such as doors and curtains, the signal quality on both sides of the partitions has a sudden change in the two switching scenarios, resulting in a sharp drop in user experience; in scenarios where the inter-layer signal penetration loss is small, the inter-layer pRRUs may cause relatively serious co-channel interference. Summary of the invention

[0005] In view of this, the present invention proposes a 5G network deployment method in special scenarios, which can effectively avoid ping-pong switching and co-frequency interference in special scenarios.

[0006] To achieve the above object, the technical solution of the present invention is:

[0007] A 5G indoor network deployment method in special scenarios, including deployment in complex scenarios and deployment in open scenarios;

[0008] Among them, the deployment method in complex scenarios is: merge adjacent pRRUs into one cell and improve the signal-to-noise ratio of the merged area and the overlapping coverage area; adjust the pRRU transmit power to adjust the switching band to a relatively open area with a regular structure as much as possible to avoid ping-pong switching in the overlapping coverage area;

[0009] The deployment method in open scenes is: multiple pRRUs are deployed crosswise on both sides; cells are merged between pRRUs to ensure that there is only one cell for coverage in open scenes.

[0010] Among them, in the deployment under open scenes, 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.

[0011] This also includes deployment in electromagnetic shielding barrier scenarios. The specific method is: deploy pRRUs on both sides of the barrier to ensure the signal coverage quality on both sides when the barrier is closed; merge the pRRUs on both sides of the barrier to avoid co-frequency interference when the barrier is opened.

[0012] This also includes deployment in scenarios with less penetration damage, specifically inter-layer pRRU deployment.

[0013] Among them, the inter-layer pRRU deployment is specifically as follows: a pRRU device is deployed every other layer, and the layer without pRRU is covered by the pRRU of the adjacent layer; the adjacent pRRUs are deployed with different frequencies; the power is adjusted to adjust the switching band to the corridor area of ​​any layer to avoid ping-pong switching in the turning area of ​​the stairwell.

[0014] Beneficial effects:

[0015] 1. The present invention is a 5G indoor network deployment method in special scenarios, which adopts cell merging and adjustment of switching band to solve the co-channel interference and ping-pong switching problems in complex scenarios; pRRU cross-deployment, cell merging and switching band adjustment are adopted to solve the co-channel interference problem between multiple pRRUs in large open scenarios, and improve the signal quality in open scenarios. In complex structural scenarios, it can avoid the user's experience rate reduction due to co-channel interference and the increase in service delay caused by ping-pong switching, and in open scenarios, it can avoid the user's experience rate reduction due to co-channel interference.

[0016] 2. The present invention adopts multiple pRRU independent deployment and cell merging method to solve the problem of sudden change in signal quality on both sides of the barrier and sharp drop in user experience in the scenario with electromagnetic shielding barrier. In the scenario with electromagnetic shielding barrier, it can avoid users' network dropped calls or sharp drop in experience rate due to switching barriers.

[0017] 3. The present invention adopts the method of deploying pRRU in separate layers and adjusting the switching band to solve the problem of co-channel interference between layers and the problem of ping-pong switching in stairwells in scenarios with small signal penetration loss. In scenarios with small inter-layer penetration loss, it can save network deployment costs and reduce co-channel interference between layers, thereby improving user experience rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The diagram is a schematic diagram of pRRU deployment in a complex scenario of the present invention.

[0019] Figure 2 It is a schematic diagram of pRRU deployment in an open space scenario of the present invention.

[0020] Figure 3 This is a schematic diagram of pRRU deployment in the electromagnetic shielding barrier scenario of the present invention.

[0021] Figure 4 This is a schematic diagram of inter-layer pRRU deployment in a scenario with relatively small penetration loss according to the present invention. DETAILED DESCRIPTION

[0022] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0023] The present invention provides a 5G network deployment method in special scenarios, including deployment in complex scenarios, deployment in open scenarios, deployment in electromagnetic shielding barrier scenarios, and deployment in scenarios with less penetration damage.

[0024] The deployment method in complex scenarios is as follows: adjacent pRRUs are merged into one cell as much as possible to avoid co-frequency interference in overlapping coverage areas and improve the signal-to-noise ratio of the merged area and the overlapping coverage area; by adjusting the pRRU transmit power, the switching band is adjusted to a relatively open area with a relatively regular structure to avoid ping-pong switching in overlapping coverage areas. Figure 1 shown.

[0025] The deployment method in open scenes is: multiple pRRUs are deployed crosswise on both sides to avoid weak coverage on one side; cells are merged between pRRUs to ensure that there is only one cell covering the open scene, to avoid co-frequency interference between pRRUs and improve the signal-to-noise ratio in the open area; the handover band 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 ​​the cells in the open scene and improve the signal-to-noise ratio in the open area. Figure 2 shown.

[0026] The deployment method in the electromagnetic shielding barrier scenario is as follows: deploy pRRUs on both sides of the barrier to ensure the signal coverage quality on both sides when the barrier is closed; merge the pRRUs on both sides of the barrier to avoid co-frequency interference between the pRRUs on both sides when the barrier is opened, causing a sharp drop in the signal-to-noise ratio. Figure 3 shown.

[0027] The deployment method in the scenario with less penetration damage is inter-layer pRRU deployment, which is as follows: deploy a pRRU device every other layer, and the layer without pRRU is covered by the pRRU of the adjacent layer, saving deployment costs while avoiding the same-frequency interference of pRRUs between layers; deploy adjacent pRRUs at different frequencies to avoid the same-frequency interference between layers; adjust the power and adjust the switching band to the corridor area of ​​any layer to avoid ping-pong switching in the stairwell turning area. Figure 4 shown.

[0028] 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 5G indoor network deployment method in a special scenario, characterized in that: Including deployment in complex scenarios and deployment in open scenarios; Among them, the deployment method in complex scenarios is: merge adjacent pRRUs into one cell and improve the signal-to-noise ratio of the merged area and the overlapping coverage area; adjust the pRRU transmit power to adjust the switching band to a relatively open area with a regular structure as much as possible to avoid ping-pong switching in the overlapping coverage area; The deployment method in open areas is: multiple pRRUs are deployed crosswise on both sides; cells are merged between pRRUs to ensure that only one cell is covered in the open area; In the deployment under open scenes, the handover 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 deployment in electromagnetic shielding barrier scenarios, specifically: deploy pRRUs on both sides of the barrier to ensure signal coverage quality on both sides when the barrier is closed; merge the pRRUs on both sides of the barrier to avoid co-frequency interference when the barrier is opened; It also includes deployment in scenarios with less penetration, specifically inter-layer pRRU deployment; The inter-layer pRRU deployment is specifically as follows: deploying a pRRU device every other layer, and the layer without pRRU is covered by the pRRU of the adjacent layer; the adjacent pRRUs are deployed with different frequencies; adjusting the power and adjusting the switching band to the corridor area of ​​any layer to avoid ping-pong switching in the turning area of ​​the stairwell.

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