IP Library Granted Patent US 12,659,113
Granted Patent B2
US 12,659,113 · App. 18/550,112 · Granted Jun 16, 2026

Full duplex reference signal configuration

Inventors: Seyedomid Taghizadeh Motlagh (Oberursel, DE); Ankit Bhamri (Rödermark, DE); Sher Ali Cheema (Ilmenau, DE); Ali Ramadan Ali (Kraiburg am Inn, DE); Hossein Bagheri (Urbana, IL); Karthikeyan Ganesan (Kronberg im Taunus, DE); Hyejung Jung (Northbrook, IL)
Assignee: Lenovo (Singapore) Pte. Ltd.
H04L5/0051H04L5/14
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Quick Facts
Patent No.
US 12,659,113
App. No.
18/550,112
Granted
Jun 16, 2026
Kind
B2
Abstract

Apparatuses, methods, and systems are disclosed for interference management for full-duplex operation. One apparatus includes a processor and a transceiver that receives a first configuration from a RAN, wherein the first configuration includes one or more of: an UL full-duplex reference signal (“FD-RS”) configuration, a DL FD-RS configuration, an indication to activate the UL FD-RS configuration, and/or an indication to activate the DL FD-RS configuration, where the UL FD-RS configuration and the DL FD-RS configuration are not simultaneously activated at the apparatus. The processor performs a first activity according to the first configuration, the first activity being one or more of: transmission on received UL FD-RS resources, measurement on received UL FD-RS resources, and/or measurements on the received DL FD-RS resources.

Claims (83)

1 . A user equipment (“UE”) for wireless communication, comprising:

at least one memory; and

at least one processor coupled with the at least one memory and configured to cause the UE to:

receive a first configuration from a radio access network (“RAN”), wherein the first configuration comprises at least one of:

an uplink (“UL”) full-duplex reference signal (“FD-RS”) configuration, wherein the UL FD-RS configuration indicates at least time-frequency resources, a multiplexing type, and time-domain behavior for UL FD-RS transmission or measurement;

a downlink (“DL”) FD-RS configuration, wherein the DL FD-RS configuration indicates at least time-frequency resources, a multiplexing type, and time-domain behavior for DL FD-RS reception and measurement;

a first indication to activate the UL FD-RS configuration and to perform one or more corresponding transmissions or first measurements;

a second indication to activate the DL FD-RS configuration received with the first configuration and to perform one or more corresponding second measurements;

or some combination thereof, wherein the first configuration does not include both the first indication and the second indication, and the UE is not simultaneously activated with the UL FD-RS configuration and the DL FD-RS configuration; and

perform a first activity according to the first configuration, wherein the first activity is selected from:

performing a transmission on received UL FD-RS resources when the first configuration comprises the UL FD-RS configuration;

performing a first measurement on received UL FD-RS resources when the first configuration comprises the UL FD-RS configuration; and

performing a second measurement on received DL FD-RS resources when the first configuration comprises the DL FD-RS configuration;

or some combination thereof.

2 . The UE of claim 1 , wherein the UL FD-RS configuration or the DL FD-RS configuration, or both, are common to a plurality of UEs.

3 . The UE of claim 1 , wherein the at least one processor is configured to cause the UE to receive, from the RAN, a UE-specific quasi-co-location (“QCL”) assumption for at least beam indication to:

transmit an UL FD-RS;

receive a DL FD-RS;

or a combination thereof.

4 . The UE of claim 1 , wherein the first indication to activate the UL FD-RS configuration comprises an indication that full-duplex mode operation is enabled in the RAN.

5 . The UE of claim 1 , wherein the second indication to activate the DL FD-RS configuration comprises an indication that full-duplex mode operation is enabled in the RAN.

6 . The UE of claim 1 , wherein further comprising measuring UE to UE co-channel interference-when full-duplex mode operation is enabled at the RAN, the at least one processor is configured to cause the UE to measure a UE-to-UE co-channel interference using at least one of the UL FD-RS configuration and the DL FD-RS configuration.

7 . The UE of claim 1 , wherein the at least one processor is configured to cause the UE to:

receive an indication from the RAN for a type of expected measurement corresponding to a resource indicated to UE for measurement;

receive a reporting configuration from the RAN corresponding to a resource indicated for measurement, the reporting configuration comprising:

a time/frequency resource for transmission of a measurement report to the network,

a reporting time pattern a reporting criteria and reporting type,

or some combination thereof;

perform measurements according to the first configuration; and

transmit a report of the performed measurements to the RAN according to the reporting configuration.

8 . The UE of claim 7 , wherein the DL FD-RS is a zero-power (“ZP”) reference signal (“RS”), wherein the at least one processor is configured to cause the UE to perform interference measurements and to perform corresponding reporting to the RAN.

9 . The UE of claim 1 , wherein the at least one processor is configured to cause the UE to receive, from the RAN, a beam configuration from the RAN to perform adjustments to a receive (“Rx”) beam at the UE for a resource indicated for FD-RS measurements.

10 . A method performed by a user equipment (“UE”), the method comprising:

receiving a first configuration from a radio access network (“RAN”), wherein the first configuration comprises at least one of:

an uplink (“UL”) full-duplex reference signal (“FD-RS”) configuration, wherein the UL FD-RS configuration indicates at least time-frequency resources, a multiplexing type, and time-domain behavior for UL FD-RS transmission or measurement;

a downlink (“DL”) FD-RS configuration, wherein the DL FD-RS configuration indicates at least time-frequency resources, a multiplexing type, and time-domain behavior for DL FD-RS reception and measurement;

a first indication to activate the UL FD-RS configuration received with the first configuration and to perform one or more corresponding transmissions or first measurements;

a second indication to activate the DL FD-RS configuration received with the first configuration and to perform one or more corresponding second measurements;

or some combination thereof, wherein the first configuration does not include both the first indication and the second indication, and the UE is not simultaneously activated with the UL FD-RS configuration and the DL FD-RS configuration; and

performing a first activity according to the first configuration, wherein the first activity is selected from:

transmission on received UL FD-RS resources when the first configuration comprises the UL FD-RS configuration;

measurement on received UL FD-RS resources when the first configuration comprises the UL FD-RS configuration; and

measurements on received DL FD-RS resources when the first configuration comprises the DL FD-RS configuration;

or some combination thereof.

11 . A base station for wireless communication, comprising:

at least one memory; and

at least one processor coupled with the at least one memory and configured to cause the base station to:

transmit a first configuration to a user equipment (“UE”), wherein the first configuration comprises at least one of:

an uplink (“UL”) full-duplex reference signal (“FD-RS”) configuration, wherein the UL FD-RS configuration indicates at least time-frequency resources, a multiplexing type, and time-domain behavior for UL FD-RS transmission or measurement;

a downlink (“DL”) FD-RS configuration, wherein the DL FD-RS configuration indicates at least time-frequency resources, a multiplexing type, and time-domain behavior for DL FD-RS measurement;

a first indication to activate the UL FD-RS configuration transmitted with the first configuration and to perform corresponding transmissions or measurements;

a second indication to activate the DL FD-RS configuration transmitted with the first configuration and to perform corresponding measurements;

or some combination thereof, wherein the first configuration does not include both the first indication and the second indication, and the UE is not simultaneously activated with the UL FD-RS configuration and the DL FD-RS configuration; and

receive a first communication from the UE, wherein the first communication comprises at least one of:

receiving an UL FD-RS transmitted on UL FD-RS resources according to the UL FD-RS configuration when the first configuration comprises the UL FD-RS configuration; or

receiving a measurement report comprising first measurements performed according to the UL FD-RS configuration when the first configuration comprises the UL FD-RS configuration or second measurements performed according to the DL FD-RS configuration when the first configuration comprises the DL FD-RS configuration.

12 . The base station of claim 11 , wherein the DL FD-RS configuration indicates a zero-power (“ZP”) reference signal (“RS”), wherein the at least one processor is configured to cause the base station to transmit, to the UE, a configuration for performing interference measurements and to performing corresponding reporting to the base station.

13 . The base station of claim 12 , wherein the at least one processor is configured to cause the base station to transmit, to the UE, a radio resource control (“RRC”) common configuration that is additionally indicated to one or more other UEs with a same reporting quantity to be reported for measurements of the ZP RS.

14 . The base station of claim 11 , wherein when full-duplex mode operation is enabled, the at least one processor is configured to cause the base station to measure self-interference at the base station using the UL FD-RS configuration or the DL FD-RS configuration.

15 . The base station of claim 11 , wherein when full-duplex mode operation is enabled, the at least one processor is configured to cause the base station to measure inter-gNB interference using the UL FD-RS configuration or the DL FD-RS configuration.

16 . The base station of claim 11 , wherein the at least one processor is configured to cause the base station to transmit, to the UE, a UE-specific Quasi-Co-Location (“QCL”) assumption for at least beam indication to:

transmit an UL FD-RS;

receive a DL FD-RS;

or a combination thereof.

17 . The base station of claim 11 , wherein the first indication to activate the UL FD-RS configuration comprises an indication that full-duplex mode operation is enabled in a radio access network (“RAN”) corresponding to the base station.

18 . The base station of claim 11 , wherein the second indication to activate the DL FD-RS configuration comprises an indication that full-duplex mode operation is enabled in a radio access network (“RAN”) corresponding to the base station.

19 . The base station of claim 11 , wherein the at least one processor is configured to cause the base station to:

transmit, to the UE, an indication for a type of expected measurement corresponding to a resource indicated for measurement;

transmit, to the UE, a reporting configuration corresponding to the resource indicated for measurement, the reporting configuration comprising:

a time/frequency resource for transmission of the measurement report,

a reporting time pattern a reporting criteria and reporting type,

or some combination thereof; and

receive the measurement report in accordance with the reporting configuration.

20 . A method performed by a base station, the method comprising:

transmitting a first configuration to a user equipment (“UE”), wherein the first configuration comprises at least one of:

an uplink (“UL”) full-duplex reference signal (“FD-RS”) configuration, wherein the UL FD-RS configuration indicates at least time-frequency resources, a multiplexing type, and time-domain behavior for UL FD-RS transmission or measurement;

a downlink (“DL”) FD-RS configuration, wherein the DL FD-RS configuration indicates at least time-frequency resources, a multiplexing type, and time-domain behavior for DL FD-RS measurement;

a first indication to activate the UL FD-RS configuration transmitted with the first configuration and to perform one or more corresponding transmissions or first measurements;

a second indication to activate the DL FD-RS configuration transmitted with the first configuration and to perform one or more corresponding second measurements;

or some combination thereof, wherein the first configuration does not include both the first indication and the second indication, and a UE is not simultaneously activated with the UL FD-RS configuration and the DL FD-RS configuration; and

receiving a first communication from the UE, wherein the first communication comprises at least one of:

an UL FD-RS transmitted on UL FD-RS resources according to the UL FD-RS configuration when the first configuration comprises the UL FD-RS configuration; or

a measurement report comprising first measurements performed according to the UL FD-RS configuration when the first configuration comprises the UL FD-RS configuration or second measurements performed according to the DL FD-RS configuration when the first configuration comprises the DL FD-RS configuration.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 22, 2023
From: MOTLAGH, SEYEDOMID TAGHIZADEH; BHAMRI, ANKIT; CHEEMA, SHER ALI; ALI, ALI RAMADAN; BAGHERI, HOSSEIN; GANESAN, KARTHIKEYAN; JUNG, HYEJUNG
To: LENOVO (SINGAPORE) PTE. LTD.
Reel/Frame 065000/0402 →
Continuity (2)
Provisional Application 63159923 · Mar 11, 2021
Related Publication 20240163058A1 · May 16, 2024
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