Base station for detecting abnormality of cell coverage and operating method thereof
A device and a method for detecting abnormality in cell coverage in a wireless communication system are provided. A base station includes a communication interface, a memory, and a processor operatively coupled to the communication interface and the memory. The processor is configured to obtain information related to an abnormal area from a network management device. The processor is configured to identify, in a case in which a user equipment (UE) handovers from another base station to the base station, whether the abnormal area is provided by the other base station based on the information related to the abnormal area. The processor is configured to detect, in a case in which the abnormal area is provided by the other base station, whether cell coverage of the base station is affected by the abnormal area provided by the other base station, based on information related to timing advance (TA) of the other base station.
1 . A first base station comprising:
a communication interface;
memory comprising one or more storage media storing instructions; and
at least one processor comprising processing circuitry,
wherein the instructions, when executed by the at least one processor individually or collectively, cause the first base station to:
obtain information related to an occurrence of an abnormal area from a network management device, wherein the abnormal area is different from a pre-defined area of cell coverage of a base station,
receive, from a second base station, a handover request signal including information related to timing advance (TA) of the second base station,
based on receiving the handover request signal,
identify whether the abnormal area is provided by the second base station in accordance with the information related to the occurrence of the abnormal area,
based on identifying that the abnormal area is provided by the second base station, detect whether cell coverage of the first base station is affected by the abnormal area provided by the second base station, in accordance with the information related to the TA of the second base station and the information related to the occurrence of the abnormal area, and
based on detecting that the cell coverage of the first base station is affected by the abnormal area provided by the second base station, cause to control the second base station to change a configuration related to the abnormal area provided by the second base station.
2 . The first base station of claim 1 , wherein the abnormal area provided by the second base station comprises at least one of overshooting coverage or island coverage.
3 . The first base station of claim 2 , wherein the instructions, when executed by the at least one processor individually or collectively, cause the first base station to:
determine, in a case in which a length corresponding to the TA of the second base station exceeds a size of a pre-defined cell coverage of the second base station, that the cell coverage of the first base station is affected by the overshooting coverage.
4 . The first base station of claim 2 , wherein the instructions, when executed by the at least one processor individually or collectively, cause the first base station to:
determine, in a case in which a length corresponding to the TA of the second base station exceeds a size of a maximum continuous coverage of the second base station, that the cell coverage of the first base station is affected by the island coverage.
5 . The first base station of claim 1 , wherein the information related to the occurrence of the abnormal area includes identification information of the second base station providing the abnormal area, and information related to at least one of a pre-defined cell coverage of the second base station providing the abnormal area, or a maximum continuous coverage of the second base station providing the abnormal area.
6 . The first base station of claim 5 , wherein the instructions, when executed by the at least one processor individually or collectively, cause the first base station to:
identify whether the abnormal area is provided by the second base station, based on the identification information of the second base station providing the abnormal area included in the information related to the occurrence of the abnormal area.
7 . The first base station of claim 1 , wherein the configuration related to the abnormal area provided by the second base station includes at least one of an antenna azimuth corresponding to a direction of the first base station or transmission power of the second base station.
8 . The first base station of claim 1 , wherein the instructions, when executed by the at least one processor individually or collectively, cause the first base station to:
obtain the information related to the TA of the second base station via an internal interface with the second base station.
9 . The first base station of claim 1 , wherein the instructions, when executed by the at least one processor individually or collectively, cause the first base station to:
based on detecting that the cell coverage of the first base station is affected by the abnormal area provided by the second base station, transmit information related to the affect to the cell coverage of the first base station caused by the abnormal area, to at least one of the network management device or the second base station, such that the second base station change the configuration related to the abnormal area provided by the second base station.
10 . The first base station of claim 1 , wherein the network management device comprises an element management system (EMS).
11 . A method performed by a first base station, the method comprising:
obtaining information related to an occurrence of an abnormal area from a network management device, wherein the abnormal area is different from a pre-defined area of cell coverage of a base station,
receiving, from a second base station, a handover request signal including information related to timing advance (TA) of the second base station,
based on receiving the handover request signal, identifying whether the abnormal area is provided by the second base station in accordance with the information related to the occurrence of the abnormal area,
based on identifying that the abnormal area is provided by the second base station, detecting whether cell coverage of the first base station is affected by the abnormal area provided by the second base station, in accordance with the information related to the TA of the second base station and the information related to the occurrence of the abnormal area, and
based on detecting that the cell coverage of the first base station is affected by the abnormal area provided by the second base station, causing to control the second base station to change a configuration related to the abnormal area provided by the second base station.
12 . The method of claim 11 , wherein the abnormal area provided by the second base station comprises at least one of overshooting coverage or island coverage.
13 . The method of claim 12 , further comprising:
determining, in a case in which a length corresponding to the TA of the second base station exceeds a size of a pre-defined cell coverage of the second base station, that the cell coverage of the first base station is affected by the overshooting coverage.
14 . The method of claim 12 , further comprising:
determining, in a case in which a length corresponding to the TA of the second base station exceeds a size of a maximum continuous coverage of the second base station, that the cell coverage of the first base station is affected by the island coverage.
15 . The method of claim 11 , wherein the information related to the occurrence of the abnormal area includes identification information of the second base station providing the abnormal area, and information related to at least one of a pre-defined cell coverage of the second base station providing the abnormal area, or a maximum continuous coverage of the second base station providing the abnormal area.
16 . The method of claim 15 , further comprising:
identifying whether the abnormal area is provided by the second base station, based on the identification information of the second base station providing the abnormal area included in the information related to the occurrence of the abnormal area.
17 . The method of claim 11 , wherein the configuration related to the abnormal area provided by the second base station includes at least one of an antenna azimuth corresponding to a direction of the first base station or transmission power of the second base station.
18 . The method of claim 11 , further comprising:
obtaining the information related to the TA of the second base station via an internal interface with the second base station.
19 . The method of claim 11 , further comprising:
based on detecting that the cell coverage of the first base station is affected by the abnormal area provided by the second base station, transmitting information related to the affect to the cell coverage of the first base station caused by the abnormal area, to at least one of the network management device or the second base station, such that the second base station change the configuration related to the abnormal area provided by the second base station.
20 . The method of claim 11 , wherein the network management device comprises an element management system (EMS).