US-20260129659-A1 - DATA TRANSMISSION/RECEPTION METHOD, DEVICE, AND SYSTEM IN WIRELESS COMMUNICATION SYSTEM

US20260129659A1US 20260129659 A1US20260129659 A1US 20260129659A1US-20260129659-A1

Abstract

A method by which a terminal is to transmit a signal in a wireless communication system is disclosed. The terminal determines a specific resource set from among resource sets formed of one or more candidate resources allocated for the transmission of a physical sidelink shared channel (PSSCH), wherein: some or all of the one or more candidate resources constituting the resource sets overlap with a first resource for transmitting a first legacy signal of the terminal; and, if a first priority of the PSSCH is higher than a second priority of the legacy signal, the specific resource set can be determined by excluding, from the one or more candidate resources, at least one first candidate resource overlapping with the first resource. Afterward, the terminal can transmit the PSSCH on the specific resource set.

Inventors

YoungJoon YOON
Minseok Noh
Juhyung Son
Geunyoung SEOK
Jinsam Kwak

Assignees

WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Dates

Publication Date: 20260507
Application Date: 20251231
Priority Date: 20220930

Claims (11)

1 - 12 . (canceled)
13 . A terminal configured to operate in a wireless communication system, the terminal comprising: a communication module; and a processor configured to control the communication module, wherein the processor is configured to: determine a resource set for transmitting a physical sidelink shared channel (PSSCH), and report the resource set to a higher layer, wherein the resource set is determined by excluding a specific resource from a candidate resource set, and wherein, when i) a reserved resource for a legacy PSSCH to be transmitted by a legacy terminal overlaps with a resource for a transmission of a physical sidelink feedback channel (PSFCH) to be transmitted in response to a first specific PSSCH, and ii) a Reference Signal Received Power (RSRP) of the legacy PSSCH is greater than a threshold value, the specific resource includes a first resource for transmitting the first specific PSSCH corresponding to the PSFCH.
14 . The terminal of claim 13 , wherein the processor is further configured to: receive sidelink control information (SCI) for a reception of the legacy PSSCH, and wherein the SCI includes reserved resource information of the reserved resource and priority information indicating a priority of the legacy PSSCH.
15 . The terminal of claim 13 , wherein, when i) a legacy resource of a legacy signal to be transmitted by the terminal overlaps with a part of the candidate resource set, and ii) a priority value of the legacy signal is lower than a priority value of a second specific PSSCH, the specific resource includes the part of the candidate resource set.
16 . The terminal of claim 15 , wherein, when the priority value of the legacy signal is equal to or higher than the priority value of the second specific PSSCH, the part of the candidate resource set is selectively included in the specific resource.
17 . The terminal of claim 13 , wherein, when the legacy PSSCH is transmitted periodically, the specific resource includes a second resource corresponding to a periodic resource for the periodic transmission of the legacy PSSCH.
18 . A method performed by a terminal configured to operate in a wireless communication system, the method comprising: determining a resource set for transmitting a physical sidelink shared channel (PSSCH); and reporting the resource set to a higher layer, wherein the resource set is determined by excluding a specific resource from a candidate resource set, and wherein, when i) a reserved resource for a legacy PSSCH to be transmitted by a legacy terminal overlaps with a resource for a transmission of a physical sidelink feedback channel (PSFCH) to be transmitted in response to a first specific PSSCH, and ii) a Reference Signal Received Power (RSRP) of the legacy PSSCH is greater than a threshold value, the specific resource includes a first resource for transmitting the first specific PSSCH corresponding to the PSFCH.
19 . The method of claim 18 , wherein the processor is further configured to: receive sidelink control information (SCI) for a reception of the legacy PSSCH, and wherein the SCI includes reserved resource information of the reserved resource and priority information indicating a priority of the legacy PSSCH.
20 . The method of claim 18 , wherein, when i) a legacy resource of a legacy signal to be transmitted by the terminal overlaps with a part of the candidate resource set, and ii) a priority value of the legacy signal is lower than a priority value of a second specific PSSCH, the specific resource includes the part of the candidate resource set.
21 . The method of claim 20 , wherein, when the priority value of the legacy signal is equal to or higher than the priority value of the second specific PSSCH, the part of the candidate resource set is selectively included in the specific resource.
22 . The method of claim 18 , wherein, when the legacy PSSCH is transmitted periodically, the specific resource includes a second resource corresponding to a periodic resource for the periodic transmission of the legacy PSSCH.

Description

TECHNICAL FIELD The present disclosure relates to a wireless communication system. Specifically, the present disclosure relates to a radio resource allocation method, a transmission method, a device, and a system for a UE performing NR sidelink communication when UEs operating NR sidelink and LTE sidelink communication co-exist in a co-channel in a wireless communication system. BACKGROUND ART After commercialization of 4th generation (4G) communication system, in order to meet the increasing demand for wireless data traffic, efforts are being made to develop new 5th generation (5G) communication systems. The 5G communication system is called as a beyond 4G network communication system, a post LTE system, or a new radio (NR) system. In order to achieve a high data transfer rate, 5G communication systems include systems operated using the millimeter wave (mmWave) band of 6 GHz or more, and include a communication system operated using a frequency band of 6 GHz or less in terms of ensuring coverage so that implementations in base stations and terminals are under consideration. A 3rd generation partnership project (3GPP) NR system enhances spectral efficiency of a network and enables a communication provider to provide more data and voice services over a given bandwidth. Accordingly, the 3GPP NR system is designed to meet the demands for high-speed data and media transmission in addition to supports for large volumes of voice. The advantages of the NR system are to have a higher throughput and a lower latency in an identical platform, support for frequency division duplex (FDD) and time division duplex (TDD), and a low operation cost with an enhanced end-user environment and a simple architecture. For more efficient data processing, dynamic TDD of the NR system may use a method for varying the number of orthogonal frequency division multiplexing (OFDM) symbols that may be used in an uplink and downlink according to data traffic directions of cell users. For example, when the downlink traffic of the cell is larger than the uplink traffic, the base station may allocate a plurality of downlink OFDM symbols to a slot (or subframe). Information about the slot configuration should be transmitted to the terminals. In order to alleviate the path loss of radio waves and increase the transmission distance of radio waves in the mmWave band, in 5G communication systems, beamforming, massive multiple input/output (massive MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, hybrid beamforming that combines analog beamforming and digital beamforming, and large scale antenna technologies are discussed. In addition, for network improvement of the system, in the 5G communication system, technology developments related to evolved small cells, advanced small cells, cloud radio access network (cloud RAN), ultra-dense network, device to device communication (D2D), vehicle to everything communication (V2X), wireless backhaul, non-terrestrial network communication (NTN), moving network, cooperative communication, coordinated multi-points (CoMP), interference cancellation, and the like are being made. In addition, in the 5G system, hybrid FSK and QAM modulation (FQAM) and sliding window superposition coding (SWSC), which are advanced coding modulation (ACM) schemes, and filter bank multi-carrier (FBMC), non-orthogonal multiple access (NOMA), and sparse code multiple access (SCMA), which are advanced connectivity technologies, are being developed. Meanwhile, in a human-centric connection network where humans generate and consume information, the Internet has evolved into the Internet of Things (IoT) network, which exchanges information among distributed components such as objects. Internet of Everything (IoE) technology, which combines IoT technology with big data processing technology through connection with cloud servers, is also emerging. In order to implement IoT, technology elements such as sensing technology, wired/wireless communication and network infrastructure, service interface technology, and security technology are required, so that in recent years, technologies such as sensor network, machine to machine (M2M), and machine type communication (MTC) have been studied for connection between objects. In the IoT environment, an intelligent internet technology (IT) service that collects and analyzes data generated from connected objects to create new value in human life can be provided. Through the fusion and mixture of existing information technology (IT) and various industries, IoT can be applied to fields such as smart home, smart building, smart city, smart car or connected car, smart grid, healthcare, smart home appliance, and advanced medical service. Accordingly, various attempts have been made to apply the 5G communication system to the IoT network. For example, technologies such as a sensor network, a machine to machine (M2M), and a machine type communication (MTC) are implemented by techniques s