EP-4742564-A1 - DEVICE AND METHOD FOR PERFORMING SEMANTIC COMMUNICATION IN WIRELESS COMMUNICATION SYSTEM

EP4742564A1EP 4742564 A1EP4742564 A1EP 4742564A1EP-4742564-A1

Abstract

The present disclosure relates to a device and method for performing semantic communication in a wireless communication system. The method performed by a first device may comprise the steps of: receiving a synchronization signal; receiving control information from a second device; and transmitting, to the second device, at least one task-specific semantic representation (SR) related to at least one task indicated by the second device among SRs generated by an encoder supporting a plurality of tasks, the at least one task-specific SR having been processed on the basis of an index for the at least one task.

Inventors

KWON, SOONHEE
LEE, Sangrim
JUNG, Ikjoo
LEE, TAEHYUN

Assignees

LG Electronics Inc.

Dates

Publication Date: 20260513
Application Date: 20230707

Claims (16)

A method performed by a first device in a wireless communication system, the method comprising: receiving a synchronization signal; receiving control information from a second device; transmitting, as at least one task-specific semantic presentation (SR) related to at least one task indicated by the second device among SRs generated by an encoder supporting a plurality of tasks, at least one processed SR based on an index for the at least one task to the second device.
The method of claim 1, wherein the index for the at least one task is determined based on at least one of a difficulty of each of the plurality of tasks or a similarity between the plurality of tasks.
The method of claim 2, wherein the difficulty of each of the plurality of tasks is determined based on an accuracy of task.
The method of claim 2, wherein the index for the at least one task is determined further based on at least one of a number of the plurality of tasks, or a total length of the SRs generated using the encoder.
The method of claim 1, wherein the at least one task-specific SR is transmitted based on an order determined based on priorities of the plurality of tasks.
The method of claim 5, wherein the priorities of the plurality of tasks are determined based on at least one of information received from the second device, a difficulty of each of the plurality of tasks, a task-specific SR length related to each of the plurality of tasks, or an importance of each of the plurality of tasks.
The method of claim 1, further comprising: generating information bits, wherein the generation of the information bits comprises: selecting at least one task-specific SR related to at least one task indicated by the second device among SRs generated by the encoder; and determining the at least one task-specific SR selected among the generated SRs as the information bits.
The method of claim 1, wherein the encoder is trained based on a method of adaptively changing a length of SR to be transmitted to a decoder corresponding to the encoder, wherein the length of SR is adaptively changed by configuring remaining SRs, excluding at least one task-specific SR related to at least one designated task among the SRs generated by the encoder, to dummy values.
A method performed by a second device in a wireless communication system, the method comprising: transmitting a synchronization signal; transmitting system information; transmitting control information to a first device; transmitting a data signal to the first device; receiving, as at least one task-specific semantic presentation (SR) related to at least one task indicated by the second device among SRs generated by the first device supporting a plurality of tasks, at least one processed SR based on an index for the at least one task from the first device.
The method of claim 9, further comprising: generating, based on the at least one task-specific SR, an SR having a length equal to that of a full SR: and performing, based on the generated SR, the at least one task.
The method of claim 10, wherein the generating the SR comprises: padding remaining SRs, excluding at least one task-specific SR related to the at least one task, with dummy values; and inputting the at least one task-specific SR and the SRs padded with the dummy values to a decoder.
The method of claim 11, wherein the decoder obtains an SR whose length is adaptively changed from an encoder corresponding to the decoder, and is trained based on the obtained SR, wherein the SR length is adaptively changed by configuring remaining SRs, excluding at least one task-specific SR related to at least one designated task among the SRs generated by the encoder, to dummy values.
A first device in a wireless communication system, comprising: a transceiver; and a processor connected to the transceiver, wherein the processor is configured to: receive a synchronization signal; receive control information from a second device; transmit, as at least one task-specific semantic presentation (SR) related to at least one task indicated by the second device among SRs generated by an encoder supporting a plurality of tasks, at least one processed SR based on an index for the at least one task to the second device.
A second device in a wireless communication system, comprising: a transceiver; and a processor connected to the transceiver, wherein the processor is configured to: transmit a synchronization signal; transmit control information to a first device; receive, as at least one task-specific semantic presentation (SR) related to at least one task indicated by the second device among SRs generated by the first device supporting a plurality of tasks, at least one processed SR based on an index for the at least one task from the first device.
A communication device comprising: at least one processor; at least one computer memory connected to the at least one processor and storing instructions for instructing operations based on being executed by the at least one processor, wherein the operations comprise: receiving a synchronization signal; receiving control information from a second device; transmitting, as at least one task-specific semantic presentation (SR) related to at least one task indicated by the second device among SRs generated by an encoder supporting a plurality of tasks, at least one processed SR based on an index for the at least one task to the second device.
A non-transitory computer-readable medium storing at least one instruction, comprising: the at least one instruction executable by a processor, wherein the at least one instruction controls a device to: receive a synchronization signal; receive control information from a second device; transmit, as at least one task-specific semantic presentation (SR) related to at least one task indicated by the second device among SRs generated by an encoder supporting a plurality of tasks, at least one processed SR based on an index for the at least one task to the second device.

Description

TECHNICAL FIELD The following description relates to a wireless communication system, including a method for performing semantic communication in the wireless communication system, and a device supporting the same. BACKGROUND ART Radio access systems have come into widespread in order to provide various types of communication services such as voice or data. In general, a radio access system is a multiple access system capable of supporting communication with multiple users by sharing available system resources (bandwidth, transmit power, etc.). Examples of the multiple access system include a code division multiple access (CDMA) system, a frequency division multiple access (FDMA) system, a time division multiple access (TDMA) system, a single carrier-frequency division multiple access (SC-FDMA) system, etc. In particular, as many communication devices require a large communication capacity, an enhanced mobile broadband (eMBB) communication technology has been proposed compared to radio access technology (RAT). In addition, not only massive machine type communications (MTC) for providing various services anytime anywhere by connecting a plurality of devices and things but also communication systems considering services/user equipments (UEs) sensitive to reliability and latency have been proposed. To this end, various technical configurations have been proposed. DISCLOSURE TECHNICAL PROBLEM The present disclosure may provide a method for effectively transmitting and receiving semantic information of a message in a wireless communication system and a device supporting the same. The present disclosure may provide a method for performing semantic communication based on multi-task in a wireless communication system and a device supporting the same. The present disclosure may provide a method for adaptively adjusting a length of a semantic representation (SR) to be transmitted and received in a wireless communication system and a device supporting the same. The present disclosure may provide a method for selecting an SR based on task information to be performed for semantic communication in a wireless communication system and a device supporting the same. The present disclosure may provide a method for controlling the transmission order of SRs based on the priorities of a plurality of tasks for semantic communication in a wireless communication system and a device supporting the same. The present disclosure may provide a method for determining an index of SR of a plurality of tasks for semantic communication in a wireless communication system and a device supporting the same. The present disclosure may provide a method for determining a difficulty of a plurality of tasks in a wireless communication system and a device supporting the same. The present disclosure may provide a method for assigning SR indexes to a plurality of tasks based on the difficulty of a plurality of tasks for semantic communication in a wireless communication system and a device supporting the same. The present disclosure may provide a method for performing learning for a semantic decoder and a semantic encoder that support multi-tasks in a wireless communication system and a device supporting the same The technical objects to be achieved in the present disclosure are not limited to the above-mentioned technical objects, and other technical objects that are not mentioned may be considered by those skilled in the art through the embodiments of the present disclosure described below. TECHNICAL SOLUTION As an example of the present disclosure, provided is a method performed by a first device in a wireless communication system. The method may comprise: receiving a synchronization signal; receiving control information from a second device; transmitting, as at least one task-specific semantic presentation (SR) related to at least one task indicated by the second device among SRs generated by an encoder supporting a plurality of tasks, at least one processed SR based on an index for the at least one task to the second device. As an example of the present disclosure, provided is a method performed by a second device in a wireless communication system. The method may comprise: transmitting a synchronization signal; transmitting system information; transmitting control information to a first device; receiving, as at least one task-specific semantic presentation (SR) related to at least one task indicated by the second device among SRs generated by the first device supporting a plurality of tasks, at least one processed SR based on an index for the at least one task from the first device. As an example of the present disclosure, provided is a first device in a wireless communication system. The first device may comprise: a transceiver; and a processor connected to the transceiver, wherein the processor is configured to: receive a synchronization signal; receive control information from a second device; transmit, as at least one task-specific semantic pr