US 11,930,554 B2
Radio link failure handling method and related product
Cong Shi, Guangdong (CN)
Assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Dongguan (CN)
Filed by GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Guangdong (CN)
Filed on Jul. 27, 2022, as Appl. No. 17/875,141.
Application 17/875,141 is a continuation of application No. 16/986,995, filed on Aug. 6, 2020, granted, now 11,425,784.
Application 16/986,995 is a continuation of application No. 16/657,153, filed on Oct. 18, 2019, granted, now 10,772,155, issued on Sep. 8, 2020.
Application 16/657,153 is a continuation of application No. PCT/CN2018/084255, filed on Apr. 24, 2018.
Claims priority of application No. PCT/CN2018/075617 (WO), filed on Feb. 7, 2018.
Prior Publication US 2022/0369420 A1, Nov. 17, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 76/34 (2018.01); H04W 76/15 (2018.01)
CPC H04W 76/34 (2018.02) [H04W 76/15 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A method for processing a radio link failure, applied to a terminal under carrier aggregation (CA) duplication, wherein the terminal comprises a Radio Link Control (RLC) layer entity, and the method comprises:
triggering a communication failure process according to a configuration of the RLC layer entity, when the RLC layer entity reaches a maximum number of retransmission times;
when a carrier set configured for a logical channel corresponding to the RLC layer entity comprises a Primary Cell (PCell), triggering the communication failure process according to the configuration of the RLC layer entity comprises:
triggering a radio link failure process of a Master Cell Group (MCG);
wherein the triggering the radio link failure process comprises the following steps:
suspending all radio bearers except a signal radio bearer SRB0;
resetting a MAC layer; and
initializing transmission of an RRC connection reestablishment request message;
when a carrier set configured for a logical channel corresponding to the RLC layer entity comprises a Primary Secondary Cell (PSCell), triggering the communication failure process according to the configuration of the RLC layer entity comprises:
triggering a radio link failure process of a Secondary Cell Group (SCG);
wherein the triggering the radio link failure process comprises the following steps:
suspending all SCG DRBs and suspending SCG transmission for split DRBs;
resetting a SCG MAC layer; and
initializing transmission of a SCG radio link failure message to a network;
when a carrier set configured for a logical channel corresponding to the RLC layer entity only comprises one or more Secondary Cells (SCells), triggering the communication failure process according to the configuration of the RLC layer entity comprises:
triggering reporting of a radio link failure of the SCell.