US 11,696,317 B2Granted

Signaling methods to alter the number of control channel blind decodings in integrated access and backhaul

AssigneesCentre of Excellence in Wireless Technology, Indian Institute of Technology Madras (Iit Madras)

InventorsPardhasarathy Jyothi, Deepak Padmanabhan Maya, Chandrasekaran Mohandoss, Thirunageswaram Ramachandran Ramya, Klutto Milleth Jeniston Deviraj, Bhaskar Ramamurthi

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Abstract

Accordingly embodiments herein achieve signaling method and system (2000) for provisioning signalling in an Integrated Access Backhaul (IAB) network (1000). The method includes providing a set of modifications in uplink and downlink signaling for an IAB node (100). The modifications either help to reduce the control channel payload or enable more flexible signaling of resources, improve efficient control channel scheduling and also avoid conflicts that might arise due to discrepancies between semi static and dynamic resource allocation.

Claims7

Dependent claims

A method for provisioning signaling in an Integrated Access and Backhaul (IAB) network, comprising:

configuring, by a central unit (CU) of a donor node, a plurality of search spaces (SS) and a number of physical downlink control channel (PDCCH) candidates for each aggregation level (AL) in every SS of the plurality of SS at a mobile terminal (MT) of the child IAB node;
configuring, by at least one of a distributed unit (DU) of a parent IAB node and the CU of the donor node, a scaling factor to the MT of the child IAB node;
scaling, by the MT of the child IAB node, the number of PDCCH candidates for each of the AL in the every SS of the plurality of SS based on the scaling factor;
and
performing, by the MT of the child IAB node, the blind decoding of at least one Downlink Control Information (DCI) using the number of scaled PDCCH candidates for each of the AL in every SS of the plurality of SS.

2 more elements

A system for provisioning signaling in an IAB network, wherein the system comprises:

a donor node comprising a central unit (CU) that configures a plurality of search spaces (SS) and a number of physical downlink control channel (PDCCH) candidates for each aggregation level (AL) in every SS of the plurality of SS at a mobile terminal (MT) of the child IAB node;
a parent Integrated Access Backhaul (IAB) node comprises a distributed unit (DU), wherein one of the DU of the parent IAB node and the CU of the donor node configures a scaling factor to the MT of the child IAB node;
and
a child Integrated Access Backhaul (IAB) node comprising the MT that scales the number of PDCCH candidates for each of the AL in the every SS of the plurality of SS based on the scaling factor, and performs the blind decoding of at least one Downlink Control Information (DCI) using the number of scaled PDCCH candidates for each of the AL in every SS of the plurality of SS.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 17/857,957Filed 5 Jul 2022 · division
Priority: IN 2019410455938 Nov 2019
Published: US 2022/0338200 A120 Oct 2022
Granted: 4 Jul 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

H04W 28/16
Network traffic management; Network resource management: central resource management; Negotiation of resources or communication parameters, e.g.…
H04W 72/53
Allocation or scheduling criteria for wireless resources: based on regulatory allocation policies
H04W 72/0446
Based on the type of the allocated resource: resources in time domain, e.g. slots or frames
H04W 72/23
Control channels or signalling for resource management: in the downlink direction of a wireless link, i.e. towards a terminal

Family

Application17/091,261Parent of this division · filed 6 Nov 2020
US 2022/0338200 A1Pre-grant publication · published 20 Oct 2022
US 11,553,496 B2Related patent
US 2021/0144718 A1Published application
US 11,696,317 B2This patent

From the US filing history. Foreign family members aren’t listed.