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Listening-before-transmitting method, terminal, network equipment, device and storage medium

A technology for network equipment and terminals, applied in the field of communications, can solve problems such as poor system compatibility, and achieve the effects of overcoming mutual interference between links, overcoming throughput drop, and improving compatibility

Pending Publication Date: 2022-04-19
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a listen first transmit method, terminal, network equipment, device and storage medium to solve the technical problem of poor system compatibility in the prior art

Method used

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  • Listening-before-transmitting method, terminal, network equipment, device and storage medium
  • Listening-before-transmitting method, terminal, network equipment, device and storage medium
  • Listening-before-transmitting method, terminal, network equipment, device and storage medium

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Embodiment Construction

[0194] The procedure for channel access in the unlicensed frequency band is stipulated in the existing scheme. In order to prevent this channel access from interfering with other systems or being interfered by other system transmissions, the base station / terminal will perform a short energy detection before channel access to determine whether the channel has been occupied by other systems. This process is called LBT. When the base station / terminal does not perform LBT for channel access, there are two situations as follows:

[0195] The base station performs downlink transmission after the uplink transmission, and if the time interval between the uplink transmission and the downlink transmission is less than 16us, the base station may not perform LBT to access the channel.

[0196] The terminal performs uplink transmission after downlink transmission, and if the time interval between uplink transmission and downlink transmission is less than 16us, the terminal may not perform ...

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Abstract

The embodiment of the invention provides a listening before transmission method, a terminal, network equipment, a device and a storage medium. The method comprises the following steps: receiving a first indication message sent by the network equipment; and determining whether to execute listen-before-transmit based on the first indication message. According to the listening before transmission method, the terminal, the network equipment, the device and the storage medium provided by the embodiment of the invention, the network equipment / terminal determines whether to execute the LBT before sending the signal / channel data, so that whether the LBT is executed or not is controllable, the problem that the throughput of a high-frequency system is reduced due to the fact that the LBT is executed before transmission is initiated is solved, and the transmission efficiency is improved. And the problem of mutual interference between links in a multi-node transmission scene due to the fact that LBT is not executed before transmission is initiated is solved, so that the compatibility of the system is improved.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a listen-before-transmit method, a terminal, a network device, a device, and a storage medium. Background technique [0002] Procedures for channel access on unlicensed frequency bands are specified in related technologies. In order to prevent this channel access from interfering with other systems or being interfered by other system transmissions, the base station / terminal will perform a short energy detection before channel access to determine whether the channel has been occupied by other systems. This process is listen first Later pass (Listen Before Talk, LBT). [0003] Currently, LBT is not implemented in the low-frequency unlicensed frequency band, and there are restrictions on transmission, for example, transmission duration and the like. [0004] However, in the high-frequency unlicensed frequency band, if the base station / terminal performs LBT bef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/08H04W72/04
CPCH04W24/08H04W72/23H04W72/04H04W74/02
Inventor 朱敏王俊伟
Owner DATANG MOBILE COMM EQUIP CO LTD
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