17822952. Efficient PRACH Transmission in a Fallback RACH Procedure simplified abstract (Apple Inc.)

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Efficient PRACH Transmission in a Fallback RACH Procedure

Organization Name

Apple Inc.

Inventor(s)

Pranav Tripathi of San Jose CA (US)

Dhiraj J. Shirke of San Jose CA (US)

Imran Haider G. Balsania of San Jose CA (US)

Sanjeevi Balasubramanian of San Jose CA (US)

Efficient PRACH Transmission in a Fallback RACH Procedure - A simplified explanation of the abstract

This abstract first appeared for US patent application 17822952 titled 'Efficient PRACH Transmission in a Fallback RACH Procedure

Simplified Explanation

The patent application describes a method for a user equipment (UE) to synchronize with a base station using a two-step random access channel (RACH) procedure. After the two-step RACH procedure, a fallback four-step RACH procedure is initiated. During this procedure, the UE configures a random access preamble transmission by deriving a physical random access channel (PRACH) transmit power parameter value based on a parameter used in the two-step RACH procedure. The UE then transmits the random access preamble to the base station.

  • The patent application focuses on improving the synchronization process between a UE and a base station.
  • It introduces a two-step RACH procedure followed by a fallback four-step RACH procedure.
  • The method involves configuring a random access preamble transmission for the four-step RACH procedure.
  • The PRACH transmit power parameter value is derived based on a parameter used in the two-step RACH procedure.
  • The random access preamble is transmitted to the base station to establish synchronization.

Potential Applications

  • This technology can be applied in wireless communication systems, particularly in cellular networks.
  • It can improve the efficiency and reliability of the synchronization process between UEs and base stations.

Problems Solved

  • The method addresses the challenge of achieving synchronization between UEs and base stations in wireless communication systems.
  • It solves the problem of efficiently configuring random access preamble transmission during the four-step RACH procedure.

Benefits

  • The two-step RACH procedure followed by the four-step RACH procedure improves the synchronization process, leading to better network performance.
  • By deriving the PRACH transmit power parameter value based on a parameter used in the two-step RACH procedure, the method optimizes the random access preamble transmission.
  • The technology enhances the overall efficiency and reliability of wireless communication systems.


Original Abstract Submitted

A user equipment (UE) is configured to initiate a two-step random access channel (RACH) procedure to synchronize with a base station, initiate a fallback four-step RACH procedure after the two-step RACH procedure, configure a random access preamble transmission for the four-step RACH procedure, wherein configuring the random access preamble transmission comprises deriving a physical random access channel (PRACH) transmit power parameter value based on a parameter used to perform a transmission during the two-step RACH procedure and transmit the random access preamble for the four-step RACH procedure to the base station.

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