TWO-PHASE BACKOFF FOR ACCESS PROCEDURE IN WIRELESS COMMUNICATION SYSTEMS

Title:

TWO-PHASE BACKOFF FOR ACCESS PROCEDURE IN WIRELESS COMMUNICATION SYSTEMS

Document Type and Number:

WIPO Patent Application WO/2018/171713

Kind Code:

A1

Abstract:

A two-phase backoff mechanism for LTE access procedure is proposed where backoff handling is applied differently in two separate phases. During the first phase, network-controlled reattempts involves adaptation to radio conditions. Reattempts due to collisions, ramping of power and other robustness parameters needed to compensate for unpredictable conditions can be handled in the first phase. During the second phase, UE-controlled reattempts continues for other conditions. UE can reattempt at a lesser rate to alleviate the worsening of the load and interference situation. As a result, backoff handling is optimized towards LTE access procedures.

Inventors:

HSU CHIA-CHUN (CN)
JOHANSSON PER JOHAN MIKAEL (SG)

Application Number:

PCT/CN2018/080186

Publication Date:

September 27, 2018

Filing Date:

March 23, 2018

Export Citation:

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Assignee:

MEDIATEK INC (CN)

International Classes:

H04W74/08

Foreign References:

US20120033613A1	2012-02-09
CN101150469A	2008-03-26
CN103987127A	2014-08-13
US20120213166A1	2012-08-23

Other References: