# US 12,764,774 B2 · Time division duplexing downlink-uplink configuration signaling

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 12,764,774 B2
- Document ID: US12764774B2
- Status: Granted
- Kind: B2
- Application number: 18/762,782
- Filed: 2024-07-03
- Published: 2024-10-24
- Granted: 2026-10-13
- Earliest claimed: 2020-05-13
- Assignees: QUALCOMM Incorporated
- Applicants: QUALCOMM Incorporated
- Inventors: Navid Abedini; Xipeng Zhu; Tao Luo; Luca Blessent; Karl Georg Hampel; Jianghong Luo; Junyi Li
- Web page: https://patentgrep.com/patent/US12764774B2

## CPC

- H04W 72/541: using the level of interference
- H04L 5/1469: {using time-sharing}
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04W 72/53: based on regulatory allocation policies
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless node may transmit, to a second wireless node, a cross-link interference (CLI) management configuration message including a permutation indicator, wherein the permutation indicator indicates that an order of slot formats is an uplink-flexible-downlink order of slot formats or indicates that the order of slot formats is a downlink-flexible-uplink order of slot formats; and communicate with one or more third wireless nodes in accordance with the order of slot formats indicated to the second wireless node. Numerous other aspects are provided.

## Claims

### Claim 1

A first wireless node for wireless communication, comprising:
a memory; and
one or more processors, coupled to the memory, configured to cause the first wireless node to:
transmit, to a second wireless node and in an F1 setup message or a configuration update message, an intended time division duplexing (TDD) downlink-uplink (DL-UL) configuration of one or more cells of the first wireless node, wherein:
the intended TDD DL-UL configuration identifies a slot format for a slot,
the first wireless node is a distributed unit, and
the second wireless node is a central unit; and
communicate with one or more third wireless nodes in the slot in accordance with the slot format indicated to the second wireless node.

### Claim 2 (depends on 1)

The first wireless node of claim 1,
wherein the intended TDD DL-UL configuration is associated with cross-link interference management.

### Claim 3 (depends on 1)

The first wireless node of claim 1,
wherein the intended TDD DL-UL configuration includes:
a first information element (IE) identifying a first quantity of downlink symbols in the slot,
a second IE identifying a second quantity of uplink symbols in the slot, and
a third IE identifying the slot format for the slot.

### Claim 4 (depends on 1)

The first wireless node of claim 1,
wherein the intended TDD DL-UL configuration includes a permutation indicator for the slot, wherein the permutation indicator indicates that the slot format is an uplink-flexible-downlink slot format or indicates that slot format is a downlink-flexible-uplink slot format.

### Claim 5 (depends on 1)

The first wireless node of claim 1,
wherein the configuration update message is a distributed unit configuration update message.

### Claim 6 (depends on 1)

The first wireless node of claim 1,
wherein the one or more third wireless nodes comprise a user equipment (UE).

### Claim 7 (depends on 1)

The first wireless node of claim 1,
wherein the slot format is selected for cross-link interference management.

### Claim 8

A first wireless node for wireless communication, comprising:
a memory; and
one or more processors, coupled to the memory, configured to cause the first wireless node to:
receive, from a second wireless node and in an F1 setup message or a configuration update message, an intended time division duplexing (TDD) downlink-uplink (DL-UL) configuration of one or more cells of the second wireless node, wherein:
the intended TDD DL-UL configuration identifies a slot format for a slot,
the first wireless node is a central unit, and
the second wireless node is a distributed unit; and
communicate with one or more third wireless nodes in the slot in accordance with the slot format indicated by the second wireless node.

### Claim 9 (depends on 8)

The first wireless node of claim 8,
wherein the intended TDD DL-UL configuration is associated with cross-link interference management.

### Claim 10 (depends on 8)

The first wireless node of claim 8,
wherein the intended TDD DL-UL configuration includes:
a first information element (IE) identifying a first quantity of downlink symbols in the slot,
a second IE identifying a second quantity of uplink symbols in the slot, and
a third IE identifying the slot format for the slot.

### Claim 11 (depends on 8)

The first wireless node of claim 8,
wherein the intended TDD DL-UL configuration includes a permutation indicator for the slot, wherein the permutation indicator indicates that the slot format is an uplink-flexible-downlink slot format or indicates that slot format is a downlink-flexible-uplink slot format.

### Claim 12 (depends on 8)

The first wireless node of claim 8,
wherein the configuration update message is a distributed unit configuration update message.

### Claim 13 (depends on 8)

The first wireless node of claim 8,
wherein the one or more third wireless nodes comprise a user equipment (UE).

### Claim 14 (depends on 8)

The first wireless node of claim 8,
wherein the slot format is selected for cross-link interference management.

### Claim 15

A method of wireless communication performed by a first wireless node, comprising:
transmitting, to a second wireless node and in an F1 setup message or a configuration update message, an intended time division duplexing (TDD) downlink-uplink (DL-UL) configuration of one or more cells of the first wireless node, wherein:
the intended TDD DL-UL configuration identifies a slot format for a slot,
the first wireless node is a distributed unit, and
the second wireless node is a central unit; and
communicating with one or more third wireless nodes in the slot in accordance with the slot format indicated to the second wireless node.

### Claim 16 (depends on 15)

The method of claim 15,
wherein the intended TDD DL-UL configuration is associated with cross-link interference management.

### Claim 17 (depends on 15)

The method of claim 15,
wherein the intended TDD DL-UL configuration includes:
a first information element (IE) identifying a first quantity of downlink symbols in the slot,
a second IE identifying a second quantity of uplink symbols in the slot, and
a third IE identifying the slot format for the slot.

### Claim 18 (depends on 15)

The method of claim 15,
wherein the intended TDD DL-UL configuration includes a permutation indicator for the slot, wherein the permutation indicator indicates that the slot format is an uplink-flexible-downlink slot format or indicates that slot format is a downlink-flexible-uplink slot format.

### Claim 19 (depends on 15)

The method of claim 15,
wherein the one or more third wireless nodes comprise a user equipment (UE).

### Claim 20 (depends on 15)

The method of claim 15,
wherein the slot format is selected for cross-link interference management.