Interference coordination implementation method and equipment based on cell coverage level

Abstract

The invention discloses an interference coordination implementation method based on a cell coverage level, and the method comprises the steps that a service base station receives random access Msg1 from UE at a random access stage, and determines the coverage level of the UE according to a Preamble code, wherein the coverage levels are divided according to the receiving intensities of the reference signals of the cell in different ranges, and the smaller the received reference signal intensity is, the higher the corresponding coverage level is; when the serving base station replies an Msg2 message to the UE at the highest coverage level, the serving base station selects a frequency band resource from the pilot frequency sub-band of the cell for sending, and selects a corresponding uplink resource position from the pilot frequency sub-band of the cell when the UE at the highest coverage level is specified in the Msg2 message to send an Msg3. Corresponding to the method, the invention further provides corresponding interference coordination implementation equipment based on the cell coverage level, a nonvolatile computer readable storage medium and electronic equipment. By applying the technical scheme disclosed by the invention, the access success rate of the UE can be improved, and idle frequency band resources of the cell can be fully utilized.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a method and device for implementing interference coordination based on cell coverage level. Background technique [0002] The LTE 230 system is a dedicated 4G network communication system designed for power communication networks, aiming to meet the communication needs of power communication networks with low latency, wide coverage, large connections, and stable and reliable performance. Wherein, when the system adopts the same-frequency networking mode, there is mutual interference between cells, and a static interference coordination mechanism may be used to plan and allocate frequency band resources of cells. like figure 1 Shown is a schematic diagram of planning and configuration of each cell edge subband in the existing LTE 230 system. By dividing the inter-frequency sub-bands of each cell and ensuring that they are orthogonal to each other, the edg...

AI Technical Summary

Problems solved by technology

[0005] However, the existing technology does not coordinate and avoid the inter-cell interference existing in the "initial random access process" of edge users, and this stage will affect the access success rate of edge users

[0006] In addition, during service transmission, since edge users are only restricted to work in different-frequency sub-band groups of the cell, if the central user of the cell has no scheduling requirements, there will be idle non-different-frequency sub-band resources, resulting in a waste of frequency band resources. At this time, edge users with heavy load service transmission requirements may not be able to meet the current traffic transmission requirements due to the limited frequency band resources obtained in different frequency sub-bands, which will seriously affect the transmission efficiency of this part of edge users

Images