US 2022/0022264 A1Published application

First network node, second network node and methods performed thereby for handling a random access channel configuration conflict

AssigneeTelefonaktiebolaget LM Ericsson (publ)

InventorsAngelo Centonza, Pablo Soldati, Ali Parichehrehteroujeni

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Abstract

A method performed by a first network node operating in with a Radio Access Technology with split architecture. The first network node is a Distributed Unit. The first network node receives one or more second indications from a second network node, a Centralized Unit. The indications comprise: i) a positive or a negative acknowledgement of a configuration conflict between a first RACH configuration in a first cell being a served cell, and a second RACH configuration in a second cell, the second cell being a neighbour cell to the first cell, ii) CU RACH assistance information associated to the conflict, the information comprising the second RACH configuration, and/or iii) a first third RACH configuration for the first cell. The first network node then updates the first RACH configuration to a second third RACH configuration, based on the indications.

Claims17

Dependent claims

A method performed by a first network node, the method being for handling a Random Access Channel, RACH, configuration conflict, the first network node operating in a wireless communications network with Radio Access Technology with a split architecture, wherein the first network node is a Distributed Unit, DU, and a second network node is a Centralized Unit, the method comprising:

receiving one or more indications from the second network node operating in the wireless communications network, the one or more indications comprising at least one of:
i. a positive acknowledgement or a negative acknowledgement of a RACH configuration conflict detected between a first RACH configuration in a first cell, the first cell being a served cell by the first network node, and a second RACH configuration in a second cell, the second cell being a neighbour cell to the first cell,
ii. CU RACH assistance information associated to the RACH conflict, the CU RACH assistance information comprising the second RACH configuration, and
iii. a first third RACH configuration for the first cell, and
updating the first RACH configuration to a second third RACH configuration, based on the detected conflict, wherein the second third RACH configuration is obtained based on the received one or more indications.

2 more elements

A first network node, for handling a Random Access Channel, RACH, configuration conflict, the first network node being configured to operate in a wireless communications network with Radio Access Technology with a split architecture, wherein the first network node is configured to be a Distributed Unit, DU, and a second network node is configured to be a Centralized Unit, the first network node further configured to:

receive one or more indications from the second network node configured to operate in the wireless communications network, the one or more indications being configured to comprise at least one of:
i. a positive acknowledgement or a negative acknowledgement of a RACH configuration conflict configured to be detected between a first RACH configuration in a first cell, the first cell being configured to be a served cell by the first network node, and a second RACH configuration in a second cell, the second cell being configured to be a neighbour cell to the first cell,
ii. CU RACH assistance information configured to be associated to the RACH conflict, the CU RACH assistance information being configured to comprise the second RACH configuration, and
iii. a first third RACH configuration for the first cell, and
update the first RACH configuration to a second third RACH configuration, based on the conflict configured to be detected, wherein the second third RACH configuration is configured to be obtained based on the one or more indications configured to be received.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/298,134Filed 12 Aug 2020
Priority: 16 Aug 2019
Published: 20 Jan 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

H04W 72/27
Control channels or signalling for resource management: between access points
H04W 74/0841
Random access procedures, e.g. with 4-step access: with collision treatment
H04L 5/0053
Arrangements for allocating sub-channels of the transmission path: allocation of signalling, i.e. of overhead other than pilot signals
H04W 74/002
Wireless channel access: transmission of channel access control information