# US 12,764,668 B2 · Prioritization of uplink transmissions by repeaters

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- Number: US 12,764,668 B2
- Document ID: US12764668B2
- Status: Granted
- Kind: B2
- Application number: 18/604,372
- Filed: 2024-03-13
- Published: 2024-09-26
- Granted: 2026-10-13
- Earliest claimed: 2023-03-22
- Assignees: Samsung Electronics Co., Ltd.
- Applicants: Samsung Electronics Co., Ltd.
- Inventors: Ebrahim MolavianJazi; Marian Rudolf; Aristides Papasakellariou
- Web page: https://patentgrep.com/patent/US12764668B2

## CPC

- H04W 52/146: {Uplink power control}
- H04L 5/1469: {using time-sharing}
- H04W 52/28: using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non-transmission
- H04W 52/367: {Power values between minimum and maximum limits, e.g. dynamic range}
- 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

Apparatuses and methods for prioritization of uplink transmissions by repeaters. A method for a network-controlled repeater (NCR) includes receiving, by an NCR mobile termination (NCR-MT) entity, first information for a first uplink transmission by the NCR-MT entity and second information for a second uplink transmission by an NCR forward (NCR-Fwd) entity that overlap in one or more symbols. The method further includes identifying a power limit for simultaneous transmission by the NCR-MT and NCR-Fwd, determining first and second powers for the first and second uplink transmissions, respectively, and when a sum of the first and second powers in the one or more symbols exceeds the power limit, third and fourth powers for the first and second uplink transmissions, respectively, that do not exceed the power limit. The method further includes transmitting, in the one or more symbols, the first and second uplink transmissions with the third and fourth powers, respectively.

## Claims

### Claim 1

A method for a network-controlled repeater (NCR) in a wireless system, the method comprising:
receiving, by an NCR mobile termination (NCR-MT) entity:
first information for a first uplink transmission by the NCR-MT entity on a control link (C-link) of the NCR, and
second information for a second uplink transmission by an NCR forward (NCR-Fwd) entity on a backhaul link (BH-link) of the NCR, wherein the second uplink transmission overlaps with the first uplink transmission in one or more symbols;
identifying, by the NCR-MT entity, a power limit for simultaneous transmission by the NCR-MT entity and by the NCR-Fwd entity;
determining, by the NCR-MT entity:
a first power for the first uplink transmission and a second power for the second uplink transmission, and
in response to a sum of the first power and the second power in the one or more symbols exceeding the power limit, a third power for the first uplink transmission and a fourth power for the second uplink transmission, wherein a sum of the third power and the fourth power does not exceed the power limit; and
transmitting, by the NCR-MT entity, the first uplink transmission with the third power in the one or more symbols; and
transmitting, by the NCR-Fwd entity, the second uplink transmission with the fourth power in the one or more symbols.

### Claim 2 (depends on 1)

The method of claim 1, further comprising:
receiving, by the NCR-MT entity:
third information for a first configured maximum power limit for the NCR-MT entity, and
fourth information for a second configured maximum power limit for the NCR-Fwd entity, wherein:
the first power and the third power do not exceed the first configured maximum power limit,
the second power and the fourth power do not exceed the second configured maximum power limit, and
the power limit is smaller than a sum of the first configured maximum power limit and the second configured maximum power limit.

### Claim 3 (depends on 1)

The method of claim 1, further comprising:
determining the third power to be same as the first power, and the fourth power to be:
zero, when (i) the NCR is not capable of simultaneous uplink transmission by both the NCR-MT entity and the NCR-Fwd entity or (ii) the NCR-Fwd entity is not capable of uplink power control, and
a scaled value of the second power, otherwise.

### Claim 4 (depends on 1)

The method of claim 1, further comprising:
determining, by the NCR-MT entity, a first priority for the first uplink transmission and a second priority for the second uplink transmission,
when the second priority is higher than the first priority, determining the third power to be a scaled value of the first power, and the fourth power to be same as the second power, and
when the first priority is higher than the second priority, determining the third power to be same as the first power, and the fourth power to be:
zero, when the NCR-Fwd entity is not capable of uplink power control, and
a scaled value of the second power, otherwise.

### Claim 5 (depends on 4)

The method of claim 4, wherein the first priority and the second priority are based on:
a predetermined prioritization between the NCR-MT entity and the NCR-Fwd entity, and
at least one of:
a priority of a signal or channel of the first uplink transmission,
a priority of a beam indication type of a third uplink reception, by the NCR-Fwd entity on an access link (AC-link) of the NCR, associated with the second uplink transmission, and
an existence of a priority flag for the beam indication type of the third uplink reception.

### Claim 6 (depends on 5)

The method of claim 5, wherein the beam indication type is prioritized in ascending order of:
semi-persistent beam indication with the priority flag,
periodic beam indication with the priority flag,
aperiodic beam indication,
semi-persistent beam indication without the priority flag, and
periodic beam indication without the priority flag.

### Claim 7 (depends on 1)

The method of claim 1, further comprising:
receiving, by the NCR-MT entity:
third information of a first time division duplex (TDD) pattern indicating first symbols for uplink transmissions by the NCR-MT entity, and
fourth information of a second TDD pattern indicating second symbols for uplink transmissions by the NCR-Fwd entity;
when the one or more symbols are included in the first symbols, determining the third power to be same as the first power and the fourth power to be zero; and
when the one or more symbols are included in the second symbols and not included in the first symbols, determining the third power to be zero, and the fourth power to be same as the second power.

### Claim 8

A network-controlled repeater (NCR), comprising:
a transceiver of an NCR mobile termination (NCR-MT) entity configured to receive:
first information for a first uplink transmission by the NCR-MT entity on a control link (C-link) of the NCR, and
second information for a second uplink transmission by an NCR forward (NCR-Fwd) entity on a backhaul link (BH-link) of the NCR, wherein the second uplink transmission overlaps with the first uplink transmission in one or symbols;
a processor of the NCR-MT entity operably coupled to the transceiver of the NCR-MT entity, the processor of the NCR-MT entity configured to:
identify a power limit for simultaneous transmission by the NCR-MT entity and by the NCR-Fwd entity; and
determine:
a first power for the first uplink transmission and a second power for the second uplink transmission,
in response to a sum of the first power and the second power in the one or more symbols exceeding the power limit, a third power for the first uplink transmission and a fourth power for the second uplink transmission, wherein a sum of the third power and the fourth power does not exceed the power limit; and
a transceiver of the NCR-Fwd entity operably coupled to the processor of the NCR-MT entity, the transceiver of the NCR-Fwd entity configured to transmit the second uplink transmission with the fourth power in the one or more symbols, and
wherein the transceiver of the NCR-MT entity is further configured to transmit the first uplink transmission with the third power in the one or more symbols.

### Claim 9 (depends on 8)

The NCR of claim 8, wherein:
the transceiver of the NCR-MT entity is further configured to receive:
third information for a first configured maximum power limit for the NCR-MT entity, and
fourth information for a second configured maximum power limit for the NCR-Fwd entity,
the first power and the third power do not exceed the first configured maximum power limit,
the second power and the fourth power do not exceed the second configured maximum power limit, and
the power limit is smaller than a sum of the first configured maximum power limit and the second configured maximum power limit.

### Claim 10 (depends on 8)

The NCR of claim 8, wherein:
the processor of the NCR-MT entity is further configured to determine the third power to be same as the first power, and the fourth power to be:
zero, when (i) the NCR is not capable of simultaneous uplink transmission by both the NCR-MT entity and the NCR-Fwd entity or (ii) the NCR-Fwd entity is not capable of uplink power control, and
a scaled value of the second power, otherwise.

### Claim 11 (depends on 8)

The NCR of claim 8, wherein:
the processor of the NCR-MT entity is further configured to determine a first priority for the first uplink transmission and a second priority for the second uplink transmission,
when the second priority is higher than the first priority, the processor of the NCR-MT entity is further configured to:
scale the first power to determine the third power, and
determine the fourth power to be same as the second power, and
when the first priority is higher than the second priority, the processor of the NCR-MT entity is further configured to:
determine the third power to be same as the first power, and
determine the fourth power to be zero, when the NCR-Fwd entity is not capable of uplink power control, and
scale the second power to determine the fourth power, otherwise.

### Claim 12 (depends on 11)

The NCR of claim 11, wherein the first priority and the second priority are based on:
a predetermined prioritization between the NCR-MT entity and the NCR-Fwd entity, and
at least one of:
a priority of a signal or channel of the first uplink transmission,
a priority of a beam indication type of a third uplink reception, by the NCR-Fwd entity on an access link (AC-link) of the NCR, associated with the second uplink transmission, and
an existence of a priority flag for the beam indication type of the third uplink reception.

### Claim 13 (depends on 12)

The NCR of claim 12, wherein the beam indication type is prioritized in ascending order of:
semi-persistent beam indication with the priority flag,
periodic beam indication with the priority flag,
aperiodic beam indication,
semi-persistent beam indication without the priority flag, and
periodic beam indication without the priority flag.

### Claim 14 (depends on 8)

The NCR of claim 8, wherein:
the transceiver of the NCR-MT entity is further configured to receive:
third information of a first time division duplex (TDD) pattern indicating first symbols for uplink transmissions by the NCR-MT entity, and
fourth information of a second TDD pattern indicating second symbols for uplink transmissions by the NCR-Fwd entity;
when the one or more symbols are included in the first symbols, the processor of the NCR-MT entity is further configured to determine the third power to be same as the first power and the fourth power to be zero; and
when the one or more symbols are included in the second symbols and not included in the first symbols, the processor of the NCR-MT entity is further configured to determine the third power to be zero and the fourth power to be same as the second power.

### Claim 15

A base station, comprising:
a transceiver configured to transmit, to a network-controlled repeater (NCR) mobile termination (NCR-MT) entity of an NCR:
first information for a first uplink reception from the NCR-MT entity on a control link (C-link) of the NCR, and
second information for a second uplink reception from an NCR forward (NCR-Fwd) entity on a backhaul link (BH-link) of the NCR, wherein the second uplink reception overlaps with the first uplink reception in the one or more symbols;
a processor operably coupled to the transceiver, the processor configured to:
identify a power limit for simultaneous transmission by the NCR-MT entity and by the NCR-Fwd entity;
determine:
a first power for the first uplink reception and a second power for the second uplink reception, and
in response to a sum of the first power and the second power in the one or more symbols exceeding the power limit, a third power for the first uplink reception and a fourth power for the second uplink reception, wherein a sum of the third power and the fourth power does not exceed the power limit; and
wherein the transceiver is further configured to receive:
from of the NCR-MT entity, the first uplink reception, which is associated with the third power, in the one or more symbols, and
from the NCR-Fwd entity, the second uplink reception, which is associated with the fourth power, in the one or more symbols.

### Claim 16 (depends on 15)

The base station of claim 15, wherein:
the transceiver is further configured to transmit, to the NCR-MT entity:
third information for a first configured maximum power limit for the NCR-MT entity, and
fourth information for a second configured maximum power limit for the NCR-Fwd entity,
the first power and the third power do not exceed the first configured maximum power limit,
the second power and the fourth power do not exceed the second configured maximum power limit, and
the power limit is smaller than a sum of the first configured maximum power limit and the second configured maximum power limit.

### Claim 17 (depends on 15)

The base station of claim 15, wherein:
the processor is further configured to determine the third power to be same as the first power, and the fourth power to be:
zero, when (i) the NCR is not capable of simultaneous uplink transmission by both the NCR-MT entity and the NCR-Fwd entity or (ii) the NCR-Fwd entity is not capable of uplink power control, and
a scaled value of the second power, otherwise.

### Claim 18 (depends on 15)

The base station of claim 15, wherein:
the processor is further configured to determine a first priority for the first uplink reception and a second priority for the second uplink reception,
when the second priority is higher than the first priority, the processor is further configured to:
scale the first power to determine the third power, and
determine the fourth power to be same as the second power, and
when the first priority is higher than the second priority, the processor is further configured to:
determine the third power to be same as the first power, and
determine the fourth power to be zero, when the NCR-MT entity is not capable of uplink power control, and
scale the second power to determine the fourth power, otherwise.

### Claim 19 (depends on 18)

The base station of claim 18, wherein the first priority and the second priority are based on:
a predetermined prioritization between the NCR-MT entity and the NCR-Fwd entity, and
at least one of:
a priority of a signal or channel of the first uplink reception,
a priority of a beam indication type of a third uplink reception, by the NCR-Fwd entity on an access link (AC-link) of the NCR, associated with the second uplink reception, and
an existence of a priority flag for the beam indication type of the third uplink reception.

### Claim 20 (depends on 15)

The base station of claim 15, wherein:
the transceiver is further configured to transmit, to the NCR-MT entity:
third information of a first time division duplex (TDD) pattern indicating first symbols for uplink receptions from the NCR-MT entity, and
fourth information of a second TDD pattern indicating second symbols for uplink receptions from the NCR-Fwd entity;
when the one or more symbols are included in the first symbols, the processor is further configured to determine the third power to be same as the first power and the fourth power to be zero; and
when the one or more symbols are included in the second symbols and not included in the first symbols, the processor is further configured to determine the third power to be zero and the fourth power to be same as the second power.