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Unauthorized frequency band transmission method and communication equipment

An unlicensed frequency band and communication equipment technology, applied in the field of unlicensed frequency band transmission, can solve problems such as inability to transmit, affect URLLC service delay and reliability, and communication equipment cannot occupy channels, so as to ensure reliability and avoid information failure. The effect of transmission

Pending Publication Date: 2021-10-12
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when there is interference, such as burst interference, the communication device may not be able to occupy the channel, so it may not be able to transmit, which may affect the delay and reliability of URLLC services

Method used

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  • Unauthorized frequency band transmission method and communication equipment
  • Unauthorized frequency band transmission method and communication equipment
  • Unauthorized frequency band transmission method and communication equipment

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] For unlicensed frequency bands, communication devices (network-side devices or terminals) need to detect whether the side channel is idle before transmitting information, that is, perform LBT (Listen Before Talk, listening before dialogue), and only transmit if the channel is idle. If the gNB detection channel is available, then the gNB can schedule the transmission of multiple PUSCH (Physical Uplink Shared Channel, physical uplink shared channel) through 1 DCI (Downlink Control Information, physical uplink shared channel), sharing gNB COT (Channel Occupancy Time , channel occupancy time), after receiving the scheduling grant, the terminal can perform LBT only before the first PUSCH transmission. If the LBT is successful, the terminal can cont...

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PUM

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Abstract

The invention provides an unlicensed frequency band transmission method and communication equipment. The unlicensed frequency band transmission method is applied to the communication equipment, and comprises performing information transmission through a target resource, wherein the target resource comprises a resource, which succeeds in listen before talk (LBT), in a scheduling resource and a candidate resource. According to the embodiment of the invention, the resource, which succeeds in LBT, in the scheduling resource and the candidate resource is used as the target resource for information transmission, so that the situation that information cannot be transmitted when the scheduling resource is not idle is avoided, and the reliability of URLLC transmission of the unlicensed frequency band is effectively ensured.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and communication equipment for transmission in an unlicensed frequency band. Background technique [0002] The main scenarios of 5G include eMBB (Enhanced Mobile Broadband, enhanced mobile broadband), URLLC (Ultra-Reliable and Low Latency Communications, high reliability and low latency communication), mMTC (massive Machine Type of Communication, massive machine type communication), these The scenario puts forward requirements for the system such as high reliability, low latency, large bandwidth, and wide coverage. [0003] For industrial scenarios, low-latency, high-reliability services can be deployed in unlicensed frequency bands, which is beneficial for areas where the interference environment is controllable or where there is no operator coverage. Factory owners can use sufficient bandwidth resources for data transmission. However, when there is interference...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12
CPCH04W72/1263H04W72/52H04W72/20
Inventor 鲁智潘学明李根
Owner VIVO MOBILE COMM CO LTD