Signal transmission method, device, equipment and system

Abstract

The present application provides a signal transmission method, device, device, and system, the method including: the second access network device determines that the first channel is idle; the second access network device sends a message indicating that the first channel is occupied First information, where the first information includes a first power value and a first duration; wherein, the first power value is sent by the second access network device through the first channel within the first duration The power used by the signal. Used to improve the spectral efficiency of unlicensed spectrum.

Description

technical field [0001] The present invention relates to the technical field of communication, and in particular to a signal transmission method, device, equipment and system. Background technique [0002] Spectrum includes licensed spectrum and unlicensed spectrum. Based on the sharing characteristics of unlicensed spectrum, multiple operators, enterprises or individuals can use unlicensed spectrum. [0003] Spectrum is the foundation of wireless communications. According to the latest international spectrum white paper released by the Federal Communications Commission (FCC), unlicensed (unlicensed) spectrum resources are greater than licensed spectrum resources. At present, the main technology used on the unlicensed spectrum is Wireless Fidelity (Wireless Fidelity, WiFi), but WiFi has defects in mobility, security, Quality of Service (Quality of Service, QoS), and simultaneous processing of multi-user scheduling. [0004] At present, when an access network device (such as...

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Problems solved by technology

[0005] However, in the actual application process, due to the different distances between the access network devices and the possibility of simultaneous uplink and downlink transmissions, the access network device cannot accurately determine the connection between the access network device and the existing channel according to the energy in the channel. The interference between the access network devices occupying the channel makes it impossible for the access network device to accurately determine whether the channel should be used based on the detected energy in the channel

[0006] It can be seen from the above that the access network equipment cannot accurately determine whether the access network equipment should use the unlicensed spectrum according to the detected energy in the channel, so that the access network equipment cannot reasonably use the unlicensed spectrum, resulting in the unlicensed spectrum The spectral efficiency is low

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