US Patent Application 18334933. Retransmission of MsgB in Two-Step Random Access Procedure simplified abstract

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Retransmission of MsgB in Two-Step Random Access Procedure

Inventors

Chunhai Yao of Beijing (CN)


Clive E. Rodgers of Palo Alto CA (US)


Dawei Zhang of Saratoga CA (US)


Fangli Xu of Beijing (CN)


Haijing Hu of Los Gatos CA (US)


Haitong Sun of Saratoga CA (US)


Wei Zeng of Saratoga CA (US)


Yuqin Chen of Shenzhen (CN)


Yushu Zhang of Beijing (CN)


Zhibin Wu of Los Altos CA (US)


Retransmission of MsgB in Two-Step Random Access Procedure - A simplified explanation of the abstract

  • This abstract for appeared for patent application number 18334933 Titled 'Retransmission of MsgB in Two-Step Random Access Procedure'

Simplified Explanation

This abstract describes a method for a wireless device to transmit a signal to a base station and then wait for a response. If the device does not receive a response, it will continue to monitor for any retransmissions of the response message. These retransmissions may be identified by a transmission number or by being partially scrambled using a unique identifier. The monitoring window may be extended to include these retransmissions. The retransmissions may contain the same information as the initial transmission or a reduced set of information as devices acknowledge successful receipt of their respective data.


Original Abstract Submitted

A wireless user equipment (UE) device may transmit a random access preamble to a base station, using a physical resource on an uplink signal. After failing to receive an initial transmission of a response message from the base station (BS), the UE device may monitor for one or more retransmissions of the response message. Each of the retransmission may include a corresponding transmission number. As an alternative, each of the retransmissions may be at least partially scrambled using a corresponding Radio Network Temporary Identifier (RNTI). As another alternative, a window for monitoring and RNTI calculation may be extended to include the one or more retransmissions. The successive retransmissions may include the same set of UE-specific payloads, or, a decreasing set of payloads over time as UE devices acknowledge successful receipt of their respective payloads.