Backoff method, apparatus, device, system and storage medium during transmission process

A technology of transmission process and equipment, applied in the field of communication

Active Publication Date: 2019-01-11
BEIJING XIAOMI MOBILE SOFTWARE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present application provides a backoff method, device, device, system, and storage medium in the transmission process, which can solve the overprotection of other equipment still performing backoff according to the backoff time period in the RTS NAV after the CTS transmission fails in the related art The problem

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  • Backoff method, apparatus, device, system and storage medium during transmission process
  • Backoff method, apparatus, device, system and storage medium during transmission process
  • Backoff method, apparatus, device, system and storage medium during transmission process

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Embodiment Construction

[0088] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0089] First of all, some nouns involved in the embodiments of the present application are explained:

[0090] LBT: is a carrier sense technology for unlicensed spectrum usage. Before the session between the sending device and the receiving device, the LBT technology is used to monitor whether the channel is idle. If the channel is idle, it will send an RTS to the receiving device after the LBT is successful; if the RTS sent by other devices is monitored on the channel, then Backoff is performed according to the backoff time indicated by the RTS sent by other devices. The technology aims to achieve fair sharing of unlicensed spectrum.

[0091] NAV: is the network allocation vector. NAV indicates a duration. In this applicatio...

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PUM

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Abstract

The present application discloses a backoff method, apparatus, device, system and storage medium during a transmission process, and relates to the technical field of communication. The method includes: a sending device performs LBT on an unlicensed frequency band; the sending device sends RTS to a receiving device when the LBT succeeds, the RTS including a first backoff period; the sending devicesends C-CTS to the receiving device after receiving CTS sent by the receiving device, the C-CTS including a second backoff period. According to the technical scheme, other devices monitoring the surrounding are periodically backed off according to the first backoff period and the second backoff period, and are required to be backed off according to the first backoff period when the CTS fails to besent, thereby solving the over-protection problem that in the related technology, after the receiving device CTS fails to be sent, other devices around the sending device still perform long-term backoff according to the NAV of the monitored RTS.

Description

technical field [0001] The embodiments of the present application relate to the technical field of communications, and in particular to a backoff method, device, device, system, and storage medium during transmission. Background technique [0002] Mobile devices and the mobile Internet have penetrated into the daily life of users. The rapid development of the mobile Internet has brought about explosive growth of data. Users have put forward higher requirements for traffic density, network capacity, transmission rate, and delay. Fifth-Generation (5G) mobile communications came into being. The 5G network has carried out a new air interface design for new scenarios and new frequency bands. In addition, due to the continuous increase of user demand, the problem of shortage of spectrum resources has become more and more severe, and the licensed frequency band has been unable to meet market demand, so the resource-rich unlicensed frequency band has become the target of enterprise...

Claims

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Application Information

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IPC IPC(8): H04W74/08
CPCH04W74/0808H04W74/0816H04L1/1896H04W74/008
Inventor 朱亚军洪伟沙桐李勇
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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