Method for processing RLC failure, network device and computer storage medium

Patent metadata

Field	Value
Publication number	US-12457660-B2
Application number	US-202318515054-A
Country	US
Kind code	B2
Filing date	Nov 20, 2023
Priority date	Jun 21, 2018
Publication date	Oct 28, 2025
Grant date	Oct 28, 2025

Abstract

The present disclosure relates to a communication method and system for converging a 5 th -Generation (5G) communication system for supporting higher data rates beyond a 4 th -Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present application relates to the field of wireless communication technologies, and discloses a method for processing an Radio Link Control (RLC) failure, an electronic device and a computer readable storage medium. The method includes: receiving, by a first network device, RLC failure related information of a user equipment (UE); processing the RLC failure correspondingly by interacting with a second network device, based on the received RLC failure related information.

First claim

What is claimed is:

1. A method performed by a central unit (CU) of a base station for processing a radio link control (RLC) failure, the method comprising:
transmitting, to a distributed unit (DU) of the base station, a user equipment (UE) context modification request message including first information indicating a logical channel identifier (LCID) associated with an RLC entity needing re-establishment; and
receiving, from the DU, a UE context modification response message including second information indicating a list of secondary cells related to the RLC entity in case that the RLC entity indicated in the first information needs to be re-established,
wherein the RLC entity indicated in the first information needs to be re-established is identified by the DU of the base station.

2. The method according to claim 1 , further comprising:
receiving, from a UE, information on the RLC failure.

3. A method performed by a distributed unit (DU) of a base station for processing a radio link control (RLC) failure, the method comprising:
receiving, from a central unit (CU) of the base station, a user equipment (UE) context modification request message including first information indicating a logical channel identifier (LCID) associated with an RLC entity needing re-establishment;
identifying the RLC entity indicated in the first information needs to be re-established; and
transmitting, to the CU, a UE context modification response message including second information indicating a list of secondary cells related to the RLC entity in case that the RLC entity indicated in the first information needs to be re-established.

4. The method according to claim 3 , wherein the first information on an RLC failure is received by the CU from a UE.

5. A central unit (CU) of a base station, the CU comprising:
a transceiver; and
a controller coupled with the transceiver and configured to:
transmit, to a distributed unit (DU) of the base station, a user equipment (UE) context modification request message including first information indicating a logical channel identifier (LCID) associated with a radio link control (RLC) entity needing re-establishment, and
receive, from the DU, a UE context modification response message including second information indicating a list of secondary cells related to the RLC entity in case that the RLC entity indicated in the first information needs to be re-established, wherein the RLC entity indicated in the first information needs to be re-established is identified by the DU of the base station.

6. The CU according to claim 5 , wherein the controller further configured to receive, from a UE, information on an RLC failure.

7. A distributed unit (DU) of a base station, the DU comprising:
a transceiver; and
a controller coupled with the transceiver and configured to:
receive, from a central unit (CU) of the base station, a user equipment (UE) context modification request message including first information indicating a logical channel identifier (LCID) associated with a radio link control (RLC) entity needing re-establishment,
identify the RLC entity indicated in the first information needs to be re-established, and
transmit, to the CU, a UE context modification response message including second information indicating a list of secondary cells related to the RLC entity in case that the RLC entity indicated in the first information needs to be re-established.

8. The DU according to claim 7 , wherein the first information on the RLC failure is received by the CU from a UE.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Wang Weiwei
• Wang Hong
• Xu Lixiang

Classifications

• H04W76/19 Primary

  Connection re-establishment · CPC title

• H04W36/13

  Cell handover without a predetermined boundary, e.g. virtual cells · CPC title

• H04W36/00692

  using simultaneous multiple data streams, e.g. cooperative multipoint [CoMP], carrier aggregation [CA] or multiple input multiple output [MIMO] (allocation of physical resources in CoMP or in CA H04L5/0035) · CPC title

• H04W36/0022

  for transferring data sessions between adjacent core network technologies · CPC title

• H04W88/085

  Access point devices with remote components · CPC title