Systems and methods for subband full-duplex

Patent metadata

Field	Value
Publication number	US-2024015546-A1
Application number	US-202318339213-A
Country	US
Kind code	A1
Filing date	Jun 21, 2023
Priority date	Jul 8, 2022
Publication date	Jan 11, 2024
Grant date	—

Abstract

Systems and methods for subband full-duplex. In some embodiments, a method includes: performing a measurement, by a first network node (gNB), of a reference signal transmitted by a second gNB; sending, by the first gNB, a report, to the second gNB, the report being based on the measurement; and mitigating, by the second gNB, based on the report, interference, by the second gNB, with full-duplex operation at the first gNB.

First claim

What is claimed is:

1 . A method, comprising:
performing a measurement, by a first network node (gNB), of a reference signal transmitted by a second gNB; sending, by the first gNB, a report, to the second gNB, the report being based on the measurement; and mitigating, by the second gNB, based on the report, interference, by the second gNB, with full-duplex operation at the first gNB.

2 . The method of claim 1 , wherein the report indicates a preferred beam or a nonpreferred beam, and the mitigating of interference comprises selecting the preferred beam, or avoiding the nonpreferred beam, for the subsequent transmission.

3 . The method of claim 1 , further comprising indicating, by the second gNB, to the first gNB, a power offset between a Channel State Information reference signal (CSI-RS) and a Synchronization Signal Block (SSB).

4 . The method of claim 1 , further comprising indicating, by the second gNB, to the first gNB, a source quasi-colocation (QCL) of a Channel State Information reference signal (CSI-RS), the indicating of the source QCL comprising indicating an index of a Synchronization Signal Block (SSB) with which the CSI-RS is QCLed.

5 . The method of claim 1 , wherein the reference signal is a periodic Channel State Information reference signal (CSI-RS) or a Synchronization Signal Block (SSB).

6 . The method of claim 1 , wherein the report indicates a measure of signal strength.

7 . The method of claim 6 , wherein the measure of signal strength is selected from the group consisting of an RSSI, an RSRP, and a SINR.

8 . The method of claim 1 , wherein the report indicates whether a beam associated with the reference signal is preferred or nonpreferred.

9 . The method of claim 1 , wherein the report indicates a degree of preferability or non-preferability of a beam associated with the reference signal.

10 . A method, comprising,
receiving, by a User Equipment (UE), from a network node (gNB), a mute request, the mute request identifying a resource element (RE); and muting, by the UE, the RE.

11 . The method of claim 10 , wherein the muting comprises puncturing the RE or rate matching of an UL transmission overlapping with the RE.

12 . The method of claim 10 , wherein the time domain and frequency domain location of the muted RE is indicated to the UE by RRC.

13 . The method of claim 10 , wherein the muting comprises dropping an uplink transmission.

14 . The method of claim 10 , wherein the mute request corresponds to a time interval during which the gNB receives a full-duplex uplink transmission.

15 . The method of claim 10 , wherein the receiving of the mute request comprises receiving the mute request as part of a Downlink Control Information (DCI).

16 . The method of claim 10 , wherein the receiving of the mute request comprises receiving the mute request as Radio Resource Control configuration.

17 . A method, comprising:
receiving, by a User Equipment (UE)), from a first network node (gNB), information for a first beam and information for a second beam; and using, by the UE, the first beam during a first time interval, overlapping a full-duplex uplink subband; and using, by the UE, the second beam during a second time interval, not overlapping a full-duplex uplink subband.

18 . The method of claim 17 , wherein the using of the second beam comprises using the second beam to receive a Physical Downlink Shared Channel (PDSCH).

19 . The method of claim 17 , wherein the using of the second beam comprises using the second beam to transmit a Physical Uplink Shared Channel (PUSCH).

20 . The method of claim 17 , wherein the using of the second beam comprises using the second beam based on an indication received, by the UE, in a Downlink Control Information (DCI).

Assignees

• Samsung Electronics Co Ltd

Inventors

• Awadin Mohamed Mokhtar Gaber Moursi
• Bae Jung Hyun

Classifications

• H04W24/08 Primary

  Testing, {supervising or monitoring} using real traffic · CPC title

• H04L5/14

  Two-way operation using the same type of signal, i.e. duplex · CPC title

• H04W24/10 Primary

  Scheduling measurement reports {; Arrangements for measurement reports} · CPC title

• H04L5/0057

  Physical resource allocation for CQI · CPC title