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Method for transmitting/receiving signal in wireless communication system

A wireless communication system and aspect technology, applied in wireless communication, vehicle wireless communication service, transmission system and other directions, can solve problems such as low data rate, and achieve the effect of preventing resource conflict

Pending Publication Date: 2022-03-18
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Logistics and shipment tracking use cases typically require lower data rates but require good coverage and reliable location information

Method used

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  • Method for transmitting/receiving signal in wireless communication system
  • Method for transmitting/receiving signal in wireless communication system
  • Method for transmitting/receiving signal in wireless communication system

Examples

Experimental program
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Embodiment approach

[0214] In NR Uu (operation between base station and terminal) communication, beam management operation at mmWave (millimeter wave) frequency is newly introduced. Beam management operations may include beam scheduling, beam selection, and beam failure recovery. While the UE and the eNB communicate with each other through the beam selected between the V2X UE and the eNB, when a problem occurs in the selected beam (i.e., in case of beam failure), the side link between the V2X UE Communications may also be affected. In addition, when a problem occurs in the state of the radio link between the V2X UE and the eNB (ie, when a radio link failure (RadioLink Failure) is declared or detected), the side link communication between the V2X UEs may also be affected. In more detail, the V2X UE may determine that there is a problem in the radio link state with the eNB. The V2X UE may monitor the radio link with the eNB, and when determining that the radio link is in a state in which communi...

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Abstract

In one embodiment, a method for performing an operation for a first terminal in a wireless communication system comprises the steps of: determining that a physical layer problem has occurred during communication with a base station; switching from a resource allocation mode 1 to a resource allocation mode 2 based on a physical layer problem; and transmitting the sidelink data to the second terminal by using the sidelink resource in a resource allocation mode 2, in which the sidelink resource is determined to be based on the sensed resource and / or based on the randomly selected resource in consideration of the sensing validity period and the latency budget of the sidelink data.

Description

technical field [0001] The present disclosure relates to wireless communication systems, and more particularly, to a method and apparatus for use of sidelink resources when a problem occurs in communication between a sidelink terminal and a base station. Background technique [0002] Wireless communication systems have been widely deployed to provide various types of communication services such as voice or data. Generally, a wireless communication system is a multiple access system that supports communication of multiple users by sharing available system resources (bandwidth, transmission power, etc.). Examples of multiple-access systems include Code Division Multiple Access (CDMA) systems, Frequency Division Multiple Access (FDMA) systems, Time Division Multiple Access (TDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single Carrier Frequency Division Multiple Access ( SC-FDMA) system and multi-carrier frequency division multiple access (MC-FDM...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/40H04W24/02H04W72/04
CPCH04W4/40H04W24/02H04W72/53H04W92/18H04W76/18H04L1/00H04W72/02H04W72/569H04W72/1263H04W72/20H04W74/08H04W72/542
Inventor 朴基源徐翰瞥李钟律
Owner LG ELECTRONICS INC