JP-2026076341-A - A method performed by a first terminal device, and the first terminal device

Abstract

[Problem] To provide a communication method, apparatus, and computer-readable medium that avoid resource collisions when discontinuous reception (DRX) is set in V2X (vehicle to everything) communication. [Solution] The method involves a first terminal device receiving first sidelink control information and a first reference signal associated with the first sidelink control information from a second terminal device during the on-duration of a discontinuous reception cycle, and determining available candidate resources in the resource selection window for a first sidelink transmission based on at least the first sidelink control information and the first reference signal, in accordance with the determination that there is an overlapping period between the off-duration of the discontinuous reception cycle and the sensing window. [Selection Diagram] Figure 11

Inventors

• ミャオ ジャオバン
• ワン ガン

Assignees

• 日本電気株式会社

Dates

Publication Date

20260511

Application Date

20260218

Claims (2)

1. A method performed by a first terminal device, The Physical Sidelink Control Channel reception and Reference Signal Received Power (RSRP) measurement are performed only during sensing occasions within the DRX inactive time slot of a discontinuous reception (DRX) cycle. A method comprising determining the resources for sidelink transmission based on the physical sidelink control channel and the RSRP measurement.
2. The first terminal device, A means for performing reception of the Physical Sidelink Control Channel and measurement of the Reference Signal Received Power (RSRP) only during sensing occasions from slots within the DRX inactive time of a discontinuous reception (DRX) cycle, A first terminal device comprising the physical sidelink control channel and means for determining the resources for sidelink transmission based on the RSRP measurement.

Description

The embodiments of this disclosure, as a whole, relate to the field of telecommunications, and more particularly to communication methods, apparatus, and computer-readable media for resource selection in discontinuous reception (DRX). DRX is a method of reducing power consumption by having a communication device receive information discontinuously from another communication device. DRX may be configured for terminal devices in vehicle-to-everything (V2X) use cases, or for terminal devices in public safety and commercial use cases where minimizing power consumption is necessary. In V2X communication, the terminal device may autonomously select resources within the resource pool for sidelink transmission by performing full or partial sensing. If DRX is configured, the terminal device may become active during the on-duration of the DRX cycle, monitoring and decoding the control channel. During the off-duration of the DRX cycle, the terminal device may enter an inactive state, not performing monitoring or decoding. Therefore, the terminal device may obtain inaccurate sensing results. As a result, resource collisions may occur. The drawings further illustrate some embodiments of this disclosure, thereby clarifying the aforementioned and other objectives, features, and advantages of this disclosure. This figure shows an exemplary communication network on which the embodiments of this disclosure can be implemented. This is an exemplary signaling diagram illustrating an exemplary process for resource selection according to some embodiments of the present disclosure. This is a schematic diagram illustrating partial sensing and DRX settings according to some embodiments of the present disclosure. This is a schematic diagram illustrating partial sensing and DRX settings according to some other embodiments of the present disclosure. This is a schematic diagram illustrating sensing and DRX settings according to some embodiments of the present disclosure. This is a schematic diagram illustrating sensing and DRX settings according to some other embodiments of the present disclosure. This is a schematic diagram illustrating sensing and DRX settings according to yet another embodiment of the present disclosure. This is a schematic diagram illustrating sensing and DRX settings according to yet another embodiment of the present disclosure. This is an exemplary signaling diagram illustrating an exemplary process for resource selection according to some other embodiments of the present disclosure. This is an exemplary signaling diagram illustrating an exemplary process for resource selection according to yet another embodiment of the present disclosure. This is a schematic diagram illustrating partial sensing and DRX setting according to yet another embodiment of the present disclosure. This is a flowchart illustrating an exemplary method according to some embodiments of the present disclosure. This is a flowchart illustrating an exemplary method relating to some other embodiments of the present disclosure. This is a flowchart illustrating an exemplary method according to yet another embodiment of the present disclosure. This is a schematic block diagram of a device suitable for implementing an embodiment of the present disclosure. In the diagram, identical or similar reference numbers represent identical or similar elements. Herein, the principles of this disclosure will be explained with reference to several exemplary embodiments. These embodiments are provided for illustrative purposes only and are intended to assist those skilled in the art in understanding and implementing this disclosure, and should be understood as not construing any limitation on the scope of this disclosure. The disclosures described herein can be implemented in various ways different from those described below. In the following description and claims, unless otherwise defined, all technical and scientific terms used herein have the same meanings as those generally understood by those skilled in the art. As used in this text, the term “terminal device” means any device having wireless or wired communication capabilities. Examples of terminal devices include, but are not limited to, user devices (UEs), personal computers, desktop computers, mobile phones, cellular phones, smartphones, personal digital assistants (PDAs), portable computers, tablets, wearable devices, Internet of Things (IoT) devices, any Internet of Things (IoE) devices, machine-type communication (MTC) devices, and in-vehicle devices for V2X communication. In V2X, the “X” represents pedestrians, vehicles, or infrastructure/networks, or image acquisition devices such as digital cameras, game consoles, music storage and playback devices, or internet-connected home appliances that enable wireless or wired internet access and browsing. As used in this text, the terms “network device” or “base station” (BS) mean a device capable of providing or hosting a cell or coverage on which terminal de