# US 2024/0205992 A1 · Repeater association for sidelink

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- Number: US 2024/0205992 A1
- Document ID: US20240205992A1
- Status: Published application
- Kind: A1
- Application number: 18/081,484
- Filed: 2022-12-14
- Published: 2024-06-20
- Earliest claimed: 2022-12-14
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Xiaojie Wang; Navid Abedini; Junyi Li
- Web page: https://patentgrep.com/patent/US20240205992A1

## CPC

- H04W 76/15: Setup of multiple wireless link connections
- H04W 76/14: Direct-mode setup
- H04W 72/20: Control channels or signalling for resource management
- H04W 72/232: the control data signalling from the physical layer, e.g. DCI signalling
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

An assisting node receives from a network entity, configuration information relating to one or more control data sets, the one or more control data sets comprising information relating to a plurality of sidelink (SL) nodes. The AN provides a relay sidelink (SL) link via the assisting node between a transmitting (Tx) SL node and a receiving (Rx) SL node of at least one pair of SL nodes from the plurality of SL nodes. The at least one pair of SL nodes is based at least in part on the configuration information.

## Claims

### Claim 1

A method for wireless communication by an assisting node (AN), comprising:
receiving, from a network entity, configuration information relating to one or more control data sets, the one or more control data sets comprising information relating to a plurality of sidelink (SL) nodes; and
providing a relay sidelink (SL) link via the assisting node (AN) between a transmitting (Tx) SL node and a receiving (Rx) SL node of at least one pair of SL nodes from the plurality of SL nodes, the at least one pair of SL nodes being based at least in part on the configuration information.

### Claim 2 (depends on 1)

The method of claim 1, wherein:
the network entity is a base station or a programmable logical controller (PLC).

### Claim 3 (depends on 1)

The method of claim 1, wherein:
the information relating to the plurality of SL nodes comprises information relating to at least one SL link between the Tx SL node and the Rx SL node of the at least one pair of SL nodes.

### Claim 4 (depends on 3)

The method of claim 3, wherein:
the one or more control data sets comprise one or more identifiers (IDs) of the plurality of SL nodes, the at least one SL link, or both.

### Claim 5 (depends on 1)

The method of claim 1, wherein receiving the configuration information comprises:
receiving one or more radio resource control (RRC) messages comprising the one or more control data sets.

### Claim 6 (depends on 1)

The method of claim 1, further comprising:
receiving one or more medium access control-control element (MAC-CE) messages for activating or deactivating at least one control data set of the one or more control data sets; and
activating or deactivating the at least one control data set of the one or more control data sets based, at least in part, on the one or more MAC-CE messages.

### Claim 7 (depends on 6)

The method of claim 6, further comprising:
receiving one or more downlink control information (DCI) messages indicating at least one SL node or at least one SL link to be activated or deactivated by the one or more MAC-CE messages; and
activating or deactivating the at least one SL node or the at least one SL link based, at least in part, on the one or more DCI messages.

### Claim 8 (depends on 7)

The method of claim 7, wherein:
a number of information bits of the DCI message is based, at least in part, on a number of activated SL nodes, a number of activated SL links, or both.

### Claim 9 (depends on 5)

The method of claim 5, wherein:
at least one of the one or more RRC messages, MAC-CE messages or DCI messages comprises further assistance information for enabling the AN to distinguish between Tx SL nodes and Rx SL nodes.

### Claim 10 (depends on 1)

The method of claim 1, further comprising:
transmitting, to the network entity, one or more reports, wherein the one or more reports comprise at least one of a SL node discovery report, a SL channel measurement report, or an AN capability report.

### Claim 11 (depends on 1)

The method of claim 1, further comprising:
receiving, from the network entity, a triggering message to start measuring SL channel state information reference signals (CSI-RSs) received at the AN from at least one of the plurality of SL nodes for beam pairing, SL channel condition measurement, or both.

### Claim 12 (depends on 11)

The method of claim 11, further comprising:
transmitting, to the network entity, a report comprising an index of a best beam towards the at least one of the plurality of SL nodes, one or more reference signal received power (RSRP) measurements from the at least one of the plurality of SL nodes, or both.

### Claim 13 (depends on 1)

The method of claim 1, wherein receiving the configuration information comprises:
receiving, from the network entity, a configuration message for monitoring a group common physical downlink control channel (GC-PDCCH).

### Claim 14 (depends on 13)

The method of claim 13, wherein:
the configuration message comprises at least one AN-specific reading position of the GC-PDCCH.

### Claim 15 (depends on 13)

The method of claim 13, wherein:
the GC-PDCCH comprises configuration information indicating to the AN at least one Tx SL node identifier (Tx-SL-ID) and at least one Rx SL node identifier (Rx-SL-ID) of the at least one pair of SL nodes of the plurality of SL nodes for establishing a relay SL link for control signaling, data traffic, or both, based at least in part on the at least one Tx-SL-ID and the at least one Rx-SL-ID.

### Claim 16 (depends on 13)

The method of claim 13, wherein:
the GC-PDCCH comprises configuration information indicating to the AN at least one of: switching between ON/OFF operating modes, adjusting a transmit power, or detecting physical sidelink feedback channel (PSFCH) for dynamic ON/OFF for retransmissions.

### Claim 17 (depends on 4)

The method of claim 4, wherein receiving the configuration information comprises:
receiving, from the network entity, the configuration information via Uu signaling, the configuration information comprising the one or more identifiers (IDs) relating to the plurality of SL nodes, the at least one SL link, or both.

### Claim 18 (depends on 17)

The method of claim 17, wherein:
the configuration information is received via RRC signaling.

### Claim 19 (depends on 17)

The method of claim 17, wherein:
the configuration information for the AN comprises one or more transmit (Tx) and receive (Rx) beam parameters.

### Claim 20 (depends on 1)

The method of claim 1, further comprising:
receiving an association message, the association message comprising information for associating the AN with a special SL node, wherein the special SL node is operable for configuring the AN.

### Claim 21 (depends on 20)

The method of claim 20, wherein:
the special SL node is part of, comprises, or embodies a programmable logical controller (PLC), wherein the PLC is arranged in a star-topology; and
wherein the PLC is operable to control one or more SL nodes, wherein the one or more SL nodes comprise one or more sensors and actuators (S/As).

### Claim 22 (depends on 1)

The method of claim 1, wherein receiving the configuration information comprises:
receiving the configuration information via PC5 signaling.

### Claim 23 (depends on 22)

The method of claim 22, wherein the PC5 signaling comprises at least one of:
radio resource control (RRC) signaling;
medium access control-control element (MAC-CE) signaling: or
sidelink control information (SCI)-1 signaling, SCI-2 signaling, or both SCI-1 and SCI-2 signaling.

### Claim 24 (depends on 22)

The method of claim 22, wherein the PC5 signaling comprises radio resource control (RRC) signaling, and wherein the RRC signaling comprises at least one of:
one or more radio resource control (RRC) messages comprising the one or more control data sets;
signaling for periodic activation or deactivation of the AN;
signaling for periodic transmission (Tx), periodic reception (Rx), or both, of SL channel state information reference signals (SL-CSI-RS) reporting, channel busy ratio (CBR) reporting, or both SL-CSI-RS and CBR reporting.

### Claim 25 (depends on 22)

The method of claim 22, wherein the PC5 signaling comprises medium access control-control element (MAC-CE) signaling, and wherein the MAC-CE signaling comprises at least one of:
signaling for semi-persistent activation of the AN: or
signaling for semi-persistent sidelink channel state information (SL-CSI) reporting relating to at least one beam and/or at least one precoder.

### Claim 26 (depends on 22)

The method of claim 22, wherein the PC5 signaling comprises sidelink control information (SCI)-1 signaling, SCI-2 signaling, or both SCI-1 and SCI-2 signaling, comprising at least one of:
signaling relating to power control, or signaling relating to dynamic ON/OFF indication.

### Claim 27

A method for wireless communication by a network entity, comprising:
determining configuration information relating to one or more control data sets, the one or more control data sets comprising information relating to a plurality of sidelink (SL) nodes; and
transmitting, to at least one assisting node (AN), the configuration information relating to the one or more control data sets.

### Claim 28 (depends on 27)

The method of claim 27, further comprising:
receiving one or more reports from the at least one AN, or from at least one of the plurality of SL nodes, or both; and
determining the configuration information relating to the one or more control data sets based, at least in part, on the one or more reports.

### Claim 29

A method for wireless communication by a sidelink (SL) node, comprising:
transmitting, to a network entity, one or more reports; and
receiving, from the network entity, configuration information based at least in part on the one or more reports.

### Claim 30

An apparatus for wireless communication by an assisting node (AN), comprising:
at least one processor;
at least one memory module coupled to the at least one processor; and
instructions stored in the at least one memory module and executable by the at least one processor to cause the apparatus to:
receive, from a network entity, configuration information relating to one or more control data sets, the one or more control data sets comprising information relating a plurality of sidelink (SL) nodes; and
provide a relay sidelink (SL) link via the assisting node (AN) between a transmitting (Tx) SL node and a receiving (Rx) SL node of at least one pair of SL nodes from the plurality of SL nodes, the at least one pair of SL nodes being based at least in part on the configuration information.
