Autonomous coverage optimizing method of wireless access network
A wireless access network and coverage optimization technology, applied in wireless communication, electrical components and other directions, can solve the problem of unreasonable setting of base station antenna parameters
Inactive Publication Date: 2014-12-24
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology
[0015] The technical problem to be solved by the present invention is: how to solve the coverage problem caused by unreasonable base station antenna parameter setting in the wireless access network
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[0045] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0046] The downlink coverage problems of the wireless access network are mainly divided into two categories: (1) Insufficient coverage, that is, the cell cannot provide effective coverage for the mobile station. Where a certain cell provides effective coverage for the mobile station, it means that the signal strength of the cell received by the user is greater than the threshold P th , where P th According to the specific situation of the wireless access network, this situation is defined as a Type I coverage anomaly (CA) situation; (2) Excessive coverage, that is, the cells in the wireless network provide too much effective coverage for the mobile station or the non-adja...
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The invention discloses an autonomous coverage optimizing method of a wireless access network, relating to the technical field of wireless access networks. The autonomous coverage optimizing method comprises the following steps of: S1, detecting a trigger condition of an autonomous coverage optimizing event, if the trigger condition is met, executing the step S2, if the trigger condition is not met, continuously detecting the trigger condition; S2, extracting measurement data from a measurement report, wherein the measurement data includes a coverage index value; S3, evaluating the current network coverage condition aiming at the measurement data, if the coverage index value reaches a target reference value, ending, and if the coverage index value does not reach the target reference value, executing the step S4; S4, according to the current coverage abnormal condition, obtaining an adjustment amount of a downward inclination of a base station antenna by adopting a simulated annealing algorithm; and S5, adjusting the downward inclination of the base station antenna according to the adjustment amount obtained in the step S4, and obtaining the measurement report again, and returning the step S1. According to the invention, the problem of coverage caused by unreasonable setting of the parameter of the base station antenna in the wireless access network can be solved.
Description
technical field [0001] The present invention relates to the technical field of wireless access networks, in particular to a method for autonomous coverage optimization of wireless access networks. Background technique [0002] With the development of wireless access technology, the network structure, wireless environment, user distribution and usage behavior of the wireless access network are constantly changing. At the same time, the expansion of the scale of the wireless access network, the complexity of network coverage planning, and the changes in the network traffic model and business model will cause the performance and operation of the current wireless access network to deviate from the original design requirements. Optimization to continuously make adjustments to the network. Only by solving various problems in the network, optimizing the allocation of network resources, improving the operating environment of the network, and improving the quality of network operati...
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IPC IPC(8): H04W24/02H04W24/08H04W24/10
Inventor 李文璟王颖姜又琳熊翱邱雪松陈兴渝王智立
Owner BEIJING UNIV OF POSTS & TELECOMM