Method and system for revising network coverage

Abstract

The invention discloses a method and a system for revising network coverage. The method includes the following steps: obtaining the timing advance Tadv from a user terminal to a base station and an antenna arrival angle AOA according to wireless measurement data reported by the user terminal and the base station; predicting the network sector coverage according to a geographic information system; revising the radius according to the prediction of the Tadv to the sector coverage; and revising the radian range according to the prediction of the AOA to the sector coverage. The method and the system for revising the network coverage can obtain more accurate sector level network coverage, further performs accurate presentation and solves the technologic problem that the actual network sector coverage situation cannot be reflected really and accurately in the prior art.

Description

technical field [0001] The present invention relates to wireless technology in the communication field, in particular to a method and system for correcting network coverage. Background technique [0002] The coverage of the wireless cellular network is affected by factors such as the location of the base station and the topography. With the urban construction, mobile network expansion and rolling construction, the actual coverage of the network is different from the theoretical coverage of the network planning and design. At present, the TD-SCDMA network has completed the large-scale network construction period, and business promotion urgently needs to obtain the actual signal coverage of the TD-SCDMA network sector, which puts forward an urgent demand for network coverage presentation. [0003] At present, three methods are generally used to measure the current network coverage status: 1. Measure through large-scale and detailed road tests and analyze test indicators; 2. A...

AI Technical Summary

Problems solved by technology

[0005] 1. Defects of large-scale and detailed road testing: the test cycle is long and can only guarantee the coverage test in the urban area, and the coverage of unreachable areas cannot be obtained by means of testing; for areas blocked by buildings, indoor coverage and untested areas It is impossible to obtain test data representing its actual coverage; in addition, the "coverage rate" obtained through drive test data is a global concept, and it is impossible to fully grasp specific areas

[0006] 2. Defects of fixed-point testing: First, customer complaints lag behind network problems, and network complaints have limited sampling of network problems; second, because the current mobile network is covered by cellular networks, the granularity of network adjustment is generally at the cell level. Due to the surrounding area coverage The unknown makes it possible to solve complaints at one point when dealing with network complaints and bring hidden dangers of complaints in other unknown areas

[0007] The test lines of the above two methods have a large number of areas that cannot be tested, and the data obtained are only some sampling points and local data. The data of the sampling points is limited, which has no statistical significance, and cannot truly and accurately reflect the TD-SCDMA network sector. actual coverage

[0008] 3. Use the radio wave propagation model to calculate the simulated network coverage: Due to the changes in the wireless environment caused by urban development and construction, tall buildings emerge in endlessly and seriously block the propagation of the signal. The TD-SCDMA network simulation coverage calculated by using the radio wave propagation model cannot truly reflect There is a large deviation in the actual coverage of the network and the accuracy of the calculated simulation coverage, which is not accurate enough

Images