JPWO2019224649A5

JPWO2019224649A5 -

Info

Publication number: JPWO2019224649A5
Application number: JP2020544297A
Authority: JP
Publication date: 2022-05-23
Anticipated expiration: 2039-05-13

Claims

A method [300] of automatically optimizing at least one cell parameter of at least one service base station [102] to serve at least one coverage hole [120].
By the input unit [202], at least one first parameter of the at least one service base station [102] from at least one of the LTE system manager (LMS) [210] and the user apparatus [106] . A step of receiving at least one second parameter, at least one network performance parameter, and at least one cell parameter, said at least one second parameter being RF coverage power (RSRP) and signal-to-interference noise ratio (SINR). ) With at least one of the steps and
A step of identifying the at least one coverage hole [120] from the coverage area [110] serviced by the at least one service base station [102] by the optimization unit [206] .
The at least one coverage hole [120] is identified and identified based on analysis of the at least one network performance parameter, at least one first parameter, and at least one second parameter in the coverage area [110].
The coverage hole [120] is poorly serviced by the at least one service base station [102].
A step of determining the current value of the at least one second parameter of the at least one service base station [102], wherein the current value is determined for the at least one coverage hole [120]. There are steps and
The target value of the at least one second parameter of the at least one serving base station [102] is determined, wherein the target value is defined based on the RSRP and SINR values of the at least one coverage hole. To be done, steps and
The first optimization is a step of executing the first optimization of the at least one cell parameter of the at least one service base station [102] in order to serve the at least one coverage hole [120]. Is performed based on the current value and at least one of the at least one network performance parameter.
A step of determining the first value of the at least one second parameter of the at least one service base station [102] when the first optimization is executed.
A step of generating an optimized state of the first optimization based on a comparison of the first value with the target value of the at least one second parameter, the state of which is successful or unsuccessful. Steps and, notifying one of the optimizations,
The second optimization is a step of executing the second optimization of the at least one cell parameter of the at least one service base station [102] in order to serve the at least one coverage hole [120]. Is a step to be performed when the optimization state signals the unsuccessful optimization.
Have,
The at least one first parameter includes drive test measurement data, reference signal (RS) strength, MCS, call drop rate, coverage of at least one service base station [102], said at least one service base station [102]. Capacity, QOS of at least one service base station [102], antenna height, antenna width, azimuth angle, antenna beam width, resource utilization of at least one service base station [102], and physical cell identity. Have at least one of
The at least one network performance parameter has at least one of the number of active users, RRC connected users, cell-enabled DL throughput, cell-enabled UL throughput, channel quality indicator (CQI), and PRB utilization percentage . 300].

The weighted traffic unit [204] further comprises a step of assigning weights to each of the plurality of sectors of the coverage area [110], wherein the weights are the at least one first parameter, the at least one. The method according to claim 1, wherein the second parameter is assigned based on the at least one network performance parameter of each of the plurality of sectors [300].

The weighted traffic unit [204] further comprises a step of generating a traffic report.
The traffic report represents the plurality of sectors having the assigned weights and at least one network performance parameter of each of the plurality of sectors.
The method of claim 2 , wherein the traffic report is generated within one of the maps based on user device trace data [300].

Claim 1 further comprises the step of monitoring the at least one first parameter, the at least one second parameter, the at least one network performance parameter, and the at least one cell parameter by the optimization unit [206]. [300].

The at least one second parameter is the reference signal reception quality (RSRQ), the physical cell ID (PCI) of the at least one service base station [102], the geolocation of the at least one service base station [102], and the latitude. , And the method of claim 1, further comprising at least one of longitude [300].

The method of claim 1, wherein the at least one cell parameter has at least one of electrical tilt, mechanical tilt, and power attenuation.

The method according to claim 1, wherein the current value of the at least one second parameter corresponds to the value of the at least one second parameter before the optimization [300].

A step of determining the second value of the at least one second parameter of the at least one serving base station [102] when the second optimization is executed.
It further comprises a step of generating a second optimization status based on a comparison of the target value of the at least one second parameter with the second value.
The status indicates one of successful optimization and unsuccessful optimization.
The method according to claim 1, wherein the first value and the second value correspond to the values of the at least one second parameter after optimization [300].

A system [200] that automatically optimizes at least one cell parameter of at least one service base station [102] to serve at least one coverage hole [120].
At least one first parameter, at least one second parameter, at least one of the at least one service base station [102] from at least one of the LTE system manager (LSM) [210] and the user apparatus [106]. An input unit [202] configured to receive one network performance parameter and at least one cell parameter, said at least one second parameter being RF coverage power (RSRP) and signal-to-interference noise ratio ( An input unit having at least one of SINR) and
An optimization unit [206] connected to the input unit [202] .
Here, the at least one coverage hole [120] is such that the at least one coverage hole [120] is identified from the coverage area [110] serviced by the at least one service base station [102]. Identifyed and identified based on analysis of at least one network performance parameter, said at least one first parameter, and said at least one second parameter .
The coverage hole [120] is poorly serviced by the at least one service base station [102].
In a state where the current value of the at least one second parameter of the at least one service base station [102] is determined for the at least one coverage hole [120], the current value is determined so as to determine the current value.
The target value of the at least one second parameter of the at least one serving base station [102], wherein the target value is defined based on the RSRP and SINR values of the at least one coverage hole. To determine
In a state where the first optimization of the at least one cell parameter of the at least one service base station [112] is performed based on the current value and at least one of the at least one network performance parameter. To perform the first optimization to serve the at least one coverage hole [120].
To determine the first value of the at least one second parameter of the at least one service base station [102] when the first optimization is performed.
In a state where the optimization state of the first optimization notifies one of successful optimization and unsuccessful optimization, in comparison of the first value and the target value of the at least one second parameter. Based on, to generate the optimized state,
In a state where the second optimization of the at least one cell parameter of the at least one service base station [102] is executed when the optimization state signals the unsuccessful optimization. To perform the second optimization to serve at least one coverage hole [120].
With the configured optimization unit,
Have,
The at least one first parameter includes drive test measurement data, reference signal (RS) strength, MCS, call drop rate, coverage of at least one service base station [102], said at least one service base station [102]. Capacity, QOS of at least one service base station [102], antenna height, antenna width, azimuth angle, antenna beam width, resource utilization of at least one service base station [102], and physical cell identity. Have at least one of
The at least one network performance parameter has at least one of the number of active users, RRC connected users, cell-enabled DL throughput, cell-enabled UL throughput, channel quality indicator (CQI), and PRB utilization percentage.
System [200] .

A weighted traffic unit [204] connected to the input unit [202] and the optimization unit [206].
With the weights assigned based on the at least one network performance parameter of each of the plurality of sectors, the weights are assigned to each of the plurality of sectors in the coverage area [110], and.
The traffic report represents the plurality of sectors having the assigned weights and at least one network performance parameter of each of the plurality of sectors.
In a state where the traffic report is generated in one of the maps based on user equipment trace data.
To generate the traffic report
To send the traffic report to the optimization unit [206],
The system [200] of claim 9 , further comprising a configured weighted traffic unit [204].

The optimization unit [206] is further configured to monitor the at least one first parameter, the at least one second parameter, the at least one network performance parameter, and the at least one cell parameter. Item 9. The system [200].