FAILURE HANDLING FOR SECONDARY CELL

WIPO Patent Application WO/2021/087644

A1

A user equipment (UE) is connected to a wireless network and operates in a carrier aggregation (CA) state that includes a first connection to a primary cell and a second connection to a secondary cell. The UE determines a beam failure has occurred for one of the first connection or the second connection and initiates a beam failure recovery (BFR) operation. The BFR operation includes transmitting, to the primary cell, a BFR Medium Access Control (MAC) Control Element (CE).

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XU FANGLI (CN)
YAO CHUNHAI (CN)
RODGERS CLIVE E (US)
ZHANG DAWEI (US)
HU HAIJING (CN)
SUN HAITONG (US)
ZENG WEI (US)
CHEN YUQIN (CN)
ZHANG YUSHU (CN)
WU ZHIBIN (US)

PCT/CN2019/115258

May 14, 2021

November 04, 2019

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APPLE INC (US)
XU FANGLI (CN)

H04W72/04

WO2019137472A1	2019-07-18
WO2019154418A1	2019-08-15
WO2019192019A1	2019-10-10

QUALCOMM INCORPORATED: "Procedures and MAC CE design for BFR for SCells", 3GPP TSG-RAN WG2 MEETING #107BIS R2-1913833, 18 October 2019 (2019-10-18), XP051791824
ERICSSON: "MAC aspects of BFR on SCell", 3GPP TSG-RAN WG2 #107BIS TDOC R2-1913012, 18 October 2019 (2019-10-18), XP051791040
MEDIATEK INC.: "Support BFR for SCell", 3GPP TSG-RAN WG2 MEETING #107BIS R2-1913240, 18 October 2019 (2019-10-18), XP051791252
See also references of EP 4055937A4

CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)

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