The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 24, 2020

Filed:

Sep. 28, 2018
Applicant:

Mediatek Inc., Hsinchu, TW;

Inventors:

Per Johan Mikael Johansson, Vikarbyn, SE;

Shiang Jiun Lin, Hsinchu, TW;

Li-Chuan Tseng, Hsinchu, TW;

Gilles Charbit, Cambridge, GB;

Assignee:

MediaTek INC., Hsin-Chu, TW;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2018.01); H04W 74/08 (2009.01); H04W 76/27 (2018.01); H04W 88/02 (2009.01); H04W 68/02 (2009.01); H04W 72/04 (2009.01); H04W 76/19 (2018.01); H04W 68/00 (2009.01);
U.S. Cl.
CPC ...
H04W 74/0833 (2013.01); H04W 68/00 (2013.01); H04W 68/02 (2013.01); H04W 72/0453 (2013.01); H04W 76/19 (2018.02); H04W 76/27 (2018.02); H04W 88/023 (2013.01);
Abstract

A method of high reliability and early data transmission (EDT) is proposed. EDT allows one uplink transmission (optionally) followed by one downlink data transmission during a random-access channel (RACH) procedure, which can reduce the signaling overhead and save UE power. To improve reliability, for uplink EDT, there would be different set of RACH reattempt parameters in the UE for different types of access. For downlink EDT, there would be an indication in the paging message to trigger whether the UE would use legacy RACH or not. Further, the configuration for PRACH resource for EDT can be independent to legacy PRACH resource configuration. Under certain conditions, UE can fallback to legacy RACH procedure for high reliability.


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