IP Library › Granted Patent US 12696281
Granted Patent B2
US 12696281 · App. 18/927,348 · Granted Jul 28, 2026

Indicating a transmission configuration indicator state

Inventors: Matha Deghel (Montrouge, FR); Keeth Saliya Jayasinghe Laddu (Espoo, FI)
Assignee: NOKIA TECHNOLOGIES OY
H04W72/21H04L5/0094
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Quick Facts
Patent No.
US 12696281
App. No.
18/927,348
Granted
Jul 28, 2026
Kind
B2
Abstract

Disclosed is a method comprising receiving a first information element indicating two transmission configuration indicator (TCI) states, receive a configuration, and determining an association between the two indicated TCI states and at least one physical uplink control channel resource group according to the configuration. The configuration causes the apparatus to determine the association between the two indicated TCI states and the at least one physical uplink control channel resource group to be one of the following: both of the two indicated TCI states are applicable to the at least one physical uplink control channel resource group; a first indicated TCI state of the two indicated TCI states is applicable to the at least one physical uplink control channel resource group; or a second indicated TCI state of the two indicated TCI states is applicable to the at least one physical uplink control channel resource group.

Claims (45)

1 . An apparatus comprising at least one processor, and at least one memory including a computer program code, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus to:

receive a pre-configuration;

receive, in a downlink control information, a first information element indicating two transmission configuration indicator states;

and

determine an association between the two indicated transmission configuration indicator states and a physical uplink control channel resource group according to the pre-configuration,

wherein the pre-configuration causes the apparatus to determine the association between the two indicated transmission configuration indicator states and the physical uplink control channel resource group to be:

both of the two indicated transmission configuration indicator states are applicable to the physical uplink control channel resource group in response to a first configuration;

a first indicated transmission configuration indicator state of the two indicated transmission configuration indicator states is applicable to the physical uplink control channel resource group in response to a second configuration; and

a second indicated transmission configuration indicator state of the two indicated transmission configuration indicator states is applicable to the physical uplink control channel resource group in response to a third configuration.

2 . The apparatus of claim 1 , wherein the apparatus is further caused to:

receive a second information element; and

derive the physical uplink control channel resource group based on the second information element.

3 . The apparatus of claim 2 , wherein the second information element indicates a physical uplink control channel resource indicator.

4 . The apparatus of claim 2 , wherein the second information element is comprised in the downlink control information.

5 . The apparatus of claim 1 , wherein the apparatus is further caused to perform a physical uplink control channel transmission according to the determined association between the two indicated transmission configuration indicator states and the physical uplink control channel resource group.

6 . The apparatus of claim 1 , wherein the pre-configuration is received via radio resource control signaling.

7 . An apparatus comprising at least one processor, and at least one memory including a computer program code, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus to:

transmit to a terminal device, a pre-configuration; and

transmit, to the terminal device, using a downlink control information, a first information element indicating two transmission configuration indicator states,

wherein the pre-configuration is for causing the terminal device to determine an association between the two indicated transmission configuration indicator states and the physical uplink control channel resource group to be:

both of the two indicated transmission configuration indicator states are applicable to the physical uplink control channel resource group in response to a first configuration;

a first indicated transmission configuration indicator state of the two indicated transmission configuration indicator states is applicable to the physical uplink control channel resource group in response to a second configuration; and

a second indicated transmission configuration indicator state of the two indicated transmission configuration indicator states is applicable to the physical uplink control channel resource group in response to a third configuration.

8 . The apparatus of claim 7 , wherein the apparatus is further caused to:

transmit, to the terminal device, a second information element for deriving the physical uplink control channel resource group.

9 . The apparatus of claim 8 , wherein the second information element indicates a physical uplink control channel resource indicator.

10 . The apparatus of claim 8 , wherein the second information element is transmitted using the downlink control information.

11 . The apparatus according to claim 7 , wherein the transmitting, to the terminal device, the pre-configuration comprises:

transmitting the pre-configuration via radio resource control signaling.

12 . A method comprising, by a terminal device:

receiving a pre-configuration;

receiving, in a downlink control information, a first information element indicating two transmission configuration indicator states;

and

determining an association between the two indicated transmission configuration indicator states and a physical uplink control channel resource group according to the pre-configuration,

wherein the pre-configuration causes the terminal device to determine the association between the two indicated transmission configuration indicator states and the physical uplink control channel resource group to be:

both of the two indicated transmission configuration indicator states are applicable to the physical uplink control channel resource group in response to a first configuration;

a first indicated transmission configuration indicator state of the two indicated transmission configuration indicator states is applicable to the physical uplink control channel resource group in response to a second configuration; and

a second indicated transmission configuration indicator state of the two indicated transmission configuration indicator states is applicable to the physical uplink control channel resource group in response to a third configuration.

13 . The method of claim 12 , further comprising:

receiving a second information element; and

deriving the physical uplink control channel resource group based on the second information element.

14 . The method of claim 13 , wherein the second information element indicates a physical uplink control channel resource indicator.

15 . The method of claim 13 , wherein the second information element is comprised in the downlink control information.

16 . The method of claim 12 , further comprising:

performing a physical uplink control channel transmission according to the determined association between the two indicated transmission configuration indicator states and the physical uplink control channel resource group.