Localization of reference symbols in communications systems

• Main Authors: Thomas, Aaron T, Rosasco, Richard J, Stevens, Brian W
• Format: Patent
• Language: English
• Published: 23.06.2020
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MULTIPLEX COMMUNICATION; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION; WIRELESS COMMUNICATIONS NETWORKS

An example method for determining a physical cell identifier is provided. The example method may include receiving a first and second signal captures from wireless, cellular communication signals transmitted by a base station. The first signal capture being a portion of a first radio frame and the second signal capture being a portion of a second, subsequent radio frame. The method may further include aligning the first and second signal captures to determine a location of a start of a first symbol in each and decoding data within signal captures to generate a first capture grid and a second capture grid. The method may further include combining the capture grids into a resultant grid and determining a subset of possible physical cell identifiers based on a position of a selected reference symbol within the resultant grid to assist with determining a current cell identifier.