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EP-4736495-A1 - SYSTEM AND METHOD FOR CORRECTING ANTENNA MISALIGNMENT IN A SECTORS

EP4736495A1EP 4736495 A1EP4736495 A1EP 4736495A1EP-4736495-A1

Abstract

The present disclosure relates to a method (400) and system (108) for correcting antenna misalignment in sectors. The method involves receiving user records comprising geolocation and quality parameters via a user data collection module (210) and gathering this data for a defined duration using a processing module (208). The processing module (208) calculates a bearing angle for each measurement (user record), implements a dynamic cone rotation to identify high-density measurement areas, and determines a center angle for optimal antenna alignment. The processing module (208) retrieves the current azimuth angle from a database (214) and compares it with the center angle to ascertain the degree of misalignment. Based on this degree, the processing module (208) aligns the antenna and, if necessary, swaps a sector of the antenna with another. The system 15 (108) facilitates these processes, ensuring enhanced network performance through precise antenna alignment.

Inventors

  • BHATNAGAR, AAYUSH
  • SHAH, BRIJESH
  • CHOURASIA, NITESH KUMAR
  • TARAN, MAYANK
  • BHATNAGAR, PRADEEP KUMAR
  • SHETTY, MANOJ
  • KADAM, Hanumant
  • CHITALIYA, Dharmesh A
  • VIRKAR, Sneha
  • KRISHNA, Neelabh
  • KOTHARI, ANSHUL
  • KHANCHANDANI, Nilesh

Assignees

  • Jio Platforms Limited

Dates

Publication Date
20260506
Application Date
20240605

Claims (20)

  1. 1. A method (900) for correcting antenna misalignment in sectors, the method comprising: receiving (902), by a user data collection module (210), a plurality of user records of a plurality of user equipments; gathering (904), by a processing module (208), the plurality of user records for a defined duration; calculating (906), by the processing module (208), at least one bearing angle for each user record based on a user geolocation in relation to a serving cell location; implementing (908), by the processing module (208), a dynamic cone rotation of a first degree, and identifying at least three nonoverlapping cones having a maximum number of user records; determining (910), by the processing module (208), a center angle by computing user records within the identified at least three nonoverlapping cones; retrieving (912), by the processing module (208), a current azimuth angle of the antenna from a database (214) and comparing the center angle with the current azimuth angle to determine a deviation between the center angle and the current azimuth angle, wherein the deviation is an indicative of a degree of misalignment; and generating (914), by the processing module (208), at least one signal for aligning the antenna based on the degree of misalignment.
  2. 2. The method (900) of claim 1, further comprising swapping, by the processing module (208), when the degree of misalignment exceeds a predetermined threshold, a sector of the antenna with a sector of another antenna.
  3. 3. The method (900) of claim 1, wherein the plurality of user records includes the at least one location data, quality parameters, radio frequency (RF) condition, signal strength, a serving cell identifier (cell ID), and a serving sector identifier (sector ID).
  4. 4. The method (900) of claim 1, wherein the plurality of user records is collected from a plurality of speed testing servers, and a plurality of user devices.
  5. 5. The method (900) of claim 1, wherein each user record includes a user geolocation and a plurality of quality parameters.
  6. 6. The method (900) of claim 1, further comprising segregating, by the processing module (208), the gathered user records based on the user geolocation associated with each user record.
  7. 7. The method (900) of claim 1, wherein the first degree is 30 degree.
  8. 8. The method (900) of claim 1, further comprising adjusting the dynamic cone rotation by shifting the dynamic cone with a second degree, wherein the second degree is 5 degree.
  9. 9. The method (900) of claim 1, wherein the center angle is calculated by identifying the high-density areas within the identified cones and computing an average of the bearing angles in the respective areas.
  10. 10. The method (900) of claim 1, further comprising generating, by the processing module (208), a report for initiating a field audit based on the degree of misalignment.
  11. 11. A system (108) for correcting antenna misalignment in sectors, the system comprising: a user data collection module (210) configured to receive a plurality of user records of a plurality of user equipments; a processing module (208) configured to: gather the plurality of user records for a defined duration; calculate at least one bearing angle for each user record based on a user geolocation in relation to a serving cell location; implement a dynamic cone rotation of a first degree and identify at least three non-overlapping cones having a maximum number of user records; determine a center angle by computing user records within the identified at least three non-overlapping cones; retrieve a current azimuth angle of the antenna from a database and compare the center angle with the current azimuth angle to determine a deviation between the center angle and the current azimuth angle, wherein the deviation is an indicative of a degree of misalignment; and generate at least one signal for aligning the antenna based on the degree of misalignment.
  12. 12. The system (108) of claim 11, wherein the processing module (208) is configured to swap a sector of the antenna with a sector of another antenna when the degree of misalignment exceeds a predetermined threshold.
  13. 13. The method (900) of claim 11, wherein the plurality of user records includes the at least one location data, quality parameters, radio frequency (RF) condition, signal strength, a serving cell identifier (cell ID), and a serving sector identifier (sector ID).
  14. 14. The system (108) of claim 11, wherein the plurality of user records is collected from a plurality of speed testing servers, and a plurality of user devices.
  15. 15. The system (108) of claim 11, wherein each user record includes a user geolocation and a plurality of quality parameters.
  16. 16. The system (108) of claim 11, the processing module (208) is configured to segregate the gathered user records based on the user geolocation associated with each user record.
  17. 17. The system (108) of claim 11, wherein the first degree is 30 degree.
  18. 18. The system (108) of claim 11, wherein the processing module (208) is configured to adjust the dynamic cone rotation by shifting the dynamic cone with a second degree, wherein the second degree is 5 degree.
  19. 19. The system (108) of claim 11, wherein the center angle is calculated by identifying the high-density areas within the identified cones and computing an average of the bearing angles in the respective areas.
  20. 20. The system (108) of claim 11, the processing module (208) is configured to generate a report based on the degree of misalignment to initiate a field audit.

Description

SYSTEM AND METHOD FOR CORRECTING ANTENNA MISALIGNMENT IN A SECTORS RESERVATION OF RIGHTS [0001] A portion of the disclosure of this patent document contains material, which is subject to intellectual property rights such as, but are not limited to, copyright, design, trademark, Integrated Circuit (IC) layout design, and/or trade dress protection, belonging to Jio Platforms Limited (JPL) or its affiliates (hereinafter referred as owner). The owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent files or records, but otherwise reserves all rights whatsoever. All rights to such intellectual property are fully reserved by the owner. FIELD OF INVENTION [0002] The embodiments of the present disclosure generally relate to network planning and optimization. More particularly, the present disclosure relates to a system and a method for correcting antenna misalignment in a sector. BACKGROUND OF THE INVENTION [0003] The following description of related art is intended to provide background information pertaining to the field of the disclosure. This section may include certain aspects of the art that may be related to various features of the present disclosure. However, it should be appreciated that this section be used only to enhance the understanding of the reader with respect to the present disclosure, and not as admissions of prior art. [0004] In the field of telecommunications and network planning, mobile network deployment is a crucial process for the effective utilization of resources in a network. One of the key elements in mobile network deployment is the antenna system. The alignment of the antenna system ensures that cellular networks provide comprehensive coverage and consistent service quality. By strategically placing cells, operators can minimize coverage gaps, reduce signal interference, and ensure that users have reliable connectivity across the service area. [0005] Moreover, antenna alignment in a cell plays a crucial role in facilitating seamless handover processes as users move across different cells. Proper alignment ensures that users experience minimal interruption in service when transitioning from one cell to another. [0006] However, in some cases, the antenna system is not properly aligned due to sectors not being correctly azimuthal. Such antenna misalignment can cause interference between adjacent cells. In addition, failure to align antennas can affect network performance and reduce throughput. Misalignment issues can stem from various factors, including incorrect installation, environmental changes, and physical obstructions. [0007] Patent document number CN114221717B titled “Base Station Antenna Azimuth Angle Calibration Method and Device” discloses obtaining an original azimuth angle of an antenna to be calibrated, obtaining sample data associated with the antenna including key performance index (KPI) for handover between a target cell and a neighbor cell, measurement report (MR) data, and drive test minimization (MDT) data; analyzing from multiple angles to obtain judgment results; and analyzing the judgment results to obtain the calibrated azimuth angle of the antenna. The method improves calibration accuracy by considering multiple factors. [0008] Patent document number CN110536310B titled “Method for Identifying Antenna Reverse Connection Based on User Data” discloses collecting user data and working parameter data, combining these data through several algorithms to correct the azimuth angle, calculating the predicted azimuth angle of each cell and the difference between the predicted azimuth angle and the working parameter azimuth angle, and processing the data to judge whether the antennas of the cells are reversely connected or not. This method combines multiple algorithms to ensure stability of data prediction in different regions. [0009] Conventional systems and methods face difficulty in the selection and management of multiple radio nodes in an optimized manner. There is, therefore, a need in the art to provide a method and a system that can overcome the shortcomings of the existing prior arts. [0010] There is, therefore, a need in the art to provide a system and a method that can mitigate the problems associated with the prior arts. OBJECTS OF THE INVENTION [0011] Some of the objects of the present disclosure, which at least one embodiment herein satisfies are as listed herein below. [0012] An object of the present disclosure is to provide a system and a method for correcting antenna misalignment in sectors. [0013] Another object of the present disclosure is to minimize call drops, maintain service continuity, and enhance the user experience during mobility. [0014] An object of the present disclosure is to minimize interference effects and improve network reliability and performance. [0015] Another object of the present disclosure is to reduce unnecessary ove