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EP-4520001-B1 - INDICATING A TRANSMISSION CONFIGURATION INDICATOR STATE

EP4520001B1EP 4520001 B1EP4520001 B1EP 4520001B1EP-4520001-B1

Inventors

  • DEGHEL, Matha
  • LADDU, Keeth Saliya Jayasinghe

Dates

Publication Date
20260513
Application Date
20230420

Claims (9)

  1. An apparatus (400), comprising: at least one processor (410), and at least one memory (420) including a computer program code, wherein the at least one memory (420) and the computer program code are configured, with the at least one processor (410), to cause the apparatus (400) to: receive a pre-configuration; receive, in a downlink control information (340), a first information element, wherein the first information element indicates two transmission configuration indicator states (372, 374); and determine, in accordance with the pre-configuration, which of the following associations is an association between the two transmission configuration indicator states (372, 374) and a physical uplink control channel resource group: both of the two transmission configuration indicator states (372, 374) are applicable to the physical uplink control channel resource group; a first transmission configuration indicator state of the two transmission configuration indicator states (372, 374) is applicable to the physical uplink control channel resource group; a second transmission configuration indicator state of the two transmission configuration indicator states (372, 374) is applicable to the physical uplink control channel resource group.
  2. An apparatus (400) according to claim 1, wherein the apparatus (400) is further caused to transmit a physical uplink control channel transmission according to the determined association between the two transmission configuration indicator states (372, 374) and the physical uplink control channel resource group.
  3. An apparatus according to any preceding claim wherein the pre-configuration is received via RRC.
  4. An apparatus (500) comprising at least one processor (510), and at least one memory (520) including a computer program code, wherein the at least one memory (520) and the computer program code are configured, with the at least one processor (510), to cause the apparatus (500) to: transmit, to a terminal device (100, 102), a pre-configuration; and transmit, to the terminal device (100, 102) in a downlink control information (340), a first information element, wherein the first information element indicates two transmission configuration indicator states (372, 374); wherein, the pre-configuration is for causing the terminal device (100, 102) to determine which of the following associations is an association between the two transmission configuration indicator states (372, 374) and a physical uplink control channel resource group: both of the two transmission configuration indicator states (372, 374) are applicable to the physical uplink control channel resource group; a first transmission configuration indicator state of the two transmission configuration indicator states (372, 374) is applicable to the physical uplink control channel resource group; a second transmission configuration indicator state of the two transmission configuration indicator states (372, 374) is applicable to the physical uplink control channel resource group.
  5. An apparatus (500) according to claim 4 wherein the pre-configuration is transmitted via RRC.
  6. A method comprising: receiving a pre-configuration; receiving, in a downlink control information (340), a first information element, wherein the first information element indicates two transmission configuration indicator states (372, 374); and determining, in accordance with the pre-configuration, which of the following associations is an association between the two transmission configuration indicator states (372, 374) and a physical uplink control channel resource group: both of the two transmission configuration indicator states (372, 374) are applicable to the physical uplink control channel resource group; a first transmission configuration indicator state of the two transmission configuration indicator states (372, 374) is applicable to the physical uplink control channel resource group; a second transmission configuration indicator state of the two transmission configuration indicator states (372, 374) is applicable to the physical uplink control channel resource group.
  7. A method comprising: transmitting, to a terminal device (100, 102), a pre-configuration; and transmitting, to the terminal device (100, 102) in a downlink control information (340), a first information element, wherein the first information element indicates two transmission configuration indicator states (372, 374); wherein, the pre-configuration is for causing the terminal device (100, 102) to determine which of the following associations is an association between the two transmission configuration indicator states (372, 374) and a physical uplink control channel resource group: both of the two transmission configuration indicator states (372, 374) are applicable to the physical uplink control channel resource group; a first transmission configuration indicator state of the two transmission configuration indicator states (372, 374) is applicable to the physical uplink control channel resource group; a second transmission configuration indicator state of the two transmission configuration indicator states (372, 374) is applicable to the physical uplink control channel resource group.
  8. A computer program comprising instructions for causing an apparatus to perform the method of claim 6.
  9. A computer program comprising instructions for causing an apparatus to perform the method of claim 7.

Description

Field The following exemplary embodiments relate to wireless communication and to indicating resources associated with transmission of data. Background Wireless networks, such as cellular communication networks, use control channels to for example indicate control information. Such control information may allow resources to be allocated such that data transmissions are enabled. It is also desirable to have as optimal usage of resources as possible. EP3734888A1 describes methods and apparatuses for jointly updating transmission (Tx) and receive (Rx) settings at a user equipment (UE). An example method involves jointly updating the TCI state (UE Rx beam) for a PDSCH and the spatial relation information (UE Tx beam) for a PUCCH resource via a single TCI-state indication. WO2021/156826 A1 is relevant as technological background. Brief Description The scope of protection sought for various embodiments of the invention is set out by the independent claims. The exemplary embodiments and features, if any, described in this specification that do not fall under the scope of the independent claims are to be interpreted as examples useful for understanding various embodiments of the invention. According to a first aspect there is provided an apparatus comprising: at least one processor, andat 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, wherein the first information element indicates two transmission configuration indicator states; anddetermine, in accordance with the pre-configuration, which of the following associations is an association between the two transmission configuration indicator states and a physical uplink control channel resource group: both of the two transmission configuration indicator states are applicable to the physical uplink control channel resource group;a first transmission configuration indicator state of the two transmission configuration indicator states is applicable to the physical uplink control channel resource group;a second transmission configuration indicator state of the two transmission configuration indicator states is applicable to the physical uplink control channel resource group. According to a second aspect there is provided an apparatus comprising: at least one processor, andat 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; andtransmit, to the terminal device in a downlink control information, a first information element, wherein the first information element indicates two transmission configuration indicator states;wherein, the pre-configuration is for causing the terminal device to determine which of the following associations is an association between the two transmission configuration indicator states and a physical uplink control channel resource group: both of the two transmission configuration indicator states are applicable to the physical uplink control channel resource group;a first transmission configuration indicator state of the two transmission configuration indicator states is applicable to the physical uplink control channel resource group;a second transmission configuration indicator state of the two transmission configuration indicator states is applicable to the physical uplink control channel resource group. According to a third aspect there is provided a method comprising: receiving a pre-configuration;receiving, in a downlink control information, a first information element, wherein the first information element indicates two transmission configuration indicator states; anddetermining, in accordance with the pre-configuration, which of the following associations is an association between the two transmission configuration indicator states and a physical uplink control channel resource group: both of the two transmission configuration indicator states are applicable to the physical uplink control channel resource group;a first transmission configuration indicator state of the two transmission configuration indicator states is applicable to the physical uplink control channel resource group;a second transmission configuration indicator state of the two transmission configuration indicator states is applicable to the physical uplink control channel resource group. According to a fourth aspect there is provided a method comprising: transmitting, to a terminal device, a pre-configuration; andtransmitting, to the terminal device in a downlink control information, a first information element, wherein the first information element indicates two transmission configuration indicator states;wherein, the pre-configuration is for cau