18243234. RANDOM ACCESS PROCEDURE FALLBACK simplified abstract (QUALCOMM Incorporated)
Contents
RANDOM ACCESS PROCEDURE FALLBACK
Organization Name
Inventor(s)
Xiaoxia Zhang of San Diego CA (US)
Sony Akkarakaran of Poway CA (US)
Muhammad Nazmul Islam of Littleton MA (US)
RANDOM ACCESS PROCEDURE FALLBACK - A simplified explanation of the abstract
This abstract first appeared for US patent application 18243234 titled 'RANDOM ACCESS PROCEDURE FALLBACK
Simplified Explanation
The patent application describes systems and methods for wireless communications that enable fallback from a 2-step to a 4-step random access procedure.
- User equipment (UE) can connect to a base station using a random access procedure, which may initially be a 2-step process to reduce handover exchange messages.
- The 2-step random access procedure involves the UE sending a first random access message with a preamble and payload to the base station.
- If the base station receives the preamble but fails to decode the payload, it can use the preamble information instead of requesting a retransmission of the entire message.
- The base station can then send a second random access message to the UE, indicating a fallback to a 4-step random access procedure for connection establishment.
Potential Applications
- Mobile telecommunications networks
- Internet of Things (IoT) devices
- Smart city infrastructure
Problems Solved
- Efficient connection establishment in wireless communications
- Reduction of handover exchange messages
- Improved reliability in random access procedures
Benefits
- Faster and more reliable connection setup
- Reduced network congestion
- Enhanced overall system performance
Original Abstract Submitted
This disclosure provides systems, methods and apparatus for wireless communications that support fallback from a 2-step to a 4-step random access procedures. A user equipment (UE) may establish a connection with a base station using a random access procedure. The random access procedure may be a 2-step random access procedure and reduce a number of handover exchange messages. The 2-step random access procedure may include the UE transmitting, to the base station, a first random access message including a preamble and a payload. In some implementations, the base station may receive the preamble but fail to receive or decode the payload. The random access procedure may utilize the received preamble information instead of performing retransmission of the first random access message. The base station may transmit a second random access message to the UE indicating, explicitly or implicitly, a fallback to a 4-step random access procedure for connection establishment.
