US 12,763,898 B2Granted

Methods, apparatus, and systems for downlink (DL) power adjustment and UE behaviors/procedures for cross division duplex (XDD)

AssigneeInterDigital Patent Holdings, Inc.

InventorsJonghyun Park, Moon Il Lee, Paul Marinier, Young Woo Kwak, Nazli Khan Beigi

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Abstract

Methods, apparatus and systems are disclosed. In one embodiment, a method may be implemented by a first Wireless Transmit/Receive Unit (WTRU). The method may include receiving configuration information indicating a first set of RBs for performing a CSI-RS measurement, receiving an indication indicating a second set of RBs, and receiving an indication indicating that a first set of symbols or slots is not configured for a certain type of duplexing method and a second set of symbols or slots is configured for the certain type of duplexing method. The method may also include measuring a first CSI-RS in the first set of RBs in a symbol or slot in the first set of symbols or slots, measuring a second CSI-RS in a symbol or slot of the second set of symbols or slots in RBs that are in both the first set of RBs and the second set of RBs, determining a CSI based on the measurement of the first CSI-RS and the second CSI-RS, and reporting the CSI.

Claims21

Dependent claims

A method implemented by a wireless transmit/receive unit (WTRU), the method comprising:

receiving configuration information indicating a first set of resource blocks (RBs) for performing a channel state information reference signal (CSI-RS) measurement;
receiving an indication indicating a second set of RBs, wherein the second set of RBs are indicated as downlink (DL) RBs, and wherein the second set of RBs comprises a subset of the first set of RBs;
receiving an indication indicating that a first set of symbols or slots is not configured for a type of duplexing method and a second set of symbols or slots is configured for the type of duplexing method;
measuring a first CSI-RS in the first set of RBs in a symbol or slot in the first set of symbols or slots;
and
on a condition that the WTRU is to combine CSI-RS measurements from the first set of symbols or slots that are not configured for the type of duplexing method and CSI-RS measurements from the second set of symbols or slots that are configured for the type of duplexing method, the method comprises:
measuring a second CSI-RS in a symbol or slot of the second set of symbols or slots in RBs that are overlapping in both the first set of RBs and the second set of RBs,
determining channel state information (CSI) based on the measurement of the first CSI-RS and the second CSI-RS, and
reporting the CSI.

6 more elements

A wireless transmit/receive unit (WTRU), comprising:

a transceiver configured to:
receive configuration information indicating a first set of resource blocks (RBs) for performing a channel state information reference signal (CSI-RS) measurement;
receive an indication indicating a second set of RBs, wherein the second set of RBs are indicated as downlink (DL) RBs, and wherein the second set of RBs comprises a subset of the first set of RBs;
and
receive an indication indicating that a first set of symbols or slots is not configured for a type of duplexing method and a second set of symbols or slots is configured for the type of duplexing method;
and
a processor configured to:
measure a first CSI-RS in the first set of RBs in a symbol or slot in the first set of symbols or slots;
and
on a condition that the WTRU is to combine CSI-RS measurements from the first set of symbols or slots that are not configured for the type of duplexing method and CSI-RS measurements from the second set of symbols or slots that are configured for the type of duplexing method:
measure a second CSI-RS in a symbol or slot of the second set of symbols or slots in RBs that are overlapping in both the first set of RBs and the second set of RBs,
determine channel state information (CSI) based on the measurement of the first CSI-RS and the second CSI-RS, and
report the CSI.

10 more elements

A wireless transmit/receive unit (WTRU), comprising:

means for receiving configuration information indicating a first set of resource blocks (RBs) for performing a channel state information reference signal (CSI-RS) measurement;
means for receiving an indication indicating a second set of RBs, wherein the second set of RBs are indicated as downlink (DL) RBs, and wherein the second set of RBs comprises a subset of the first set of RBs;
means for receiving an indication indicating that a first set of symbols or slots is not configured for a type of duplexing method and a second set of symbols or slots is configured for the type of duplexing method;
means for measuring a first CSI-RS in the first set of RBs in a symbol or slot in the first set of symbols or slots;
on a condition that the WTRU is to combine CSI-RS measurements from the first set of symbols or slots that are not configured for the type of duplexing method and CSI-RS measurements from the second set of symbols or slots that are configured for the type of duplexing method, the WTRU comprises:
means for measuring a second CSI-RS in a symbol or slot of the second set of symbols or slots in RBs that are overlapping in both the first set of RBs and the second set of RBs,
means for determining channel state information (CSI) based on the measurement of the first CSI-RS and the second CSI-RS, and
means for reporting the CSI.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/706,773Filed 1 Nov 2022 · us provisional application
Priority: 3 Nov 2021
Published: US 2025/0038906 A130 Jan 2025
Granted: 13 Oct 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H04L 5/0048
Arrangements for allocating sub-channels of the transmission path: allocation of pilot signals, i.e. of signals known to the receiver
H04L 5/14
Arrangements affording multiple use of the transmission path: two-way operation using the same type of signal, i.e. duplex
H04W 24/10
Supervisory, monitoring or testing arrangements: scheduling measurement reports ; Arrangements for measurement reports
H04L 5/0041
Inter-user or inter-terminal allocation: frequency-non-contiguous