Network device, terminal, and method for determining communication spectrum availability

Abstract

The present invention relates to the field of wireless communication technologies, and in particular to a network device, a terminal, and a method for determining the availability of a communication spectrum, so as to solve the problem that when a network device does not effectively sense another network device and uses its communication spectrum to communicate with a terminal, There may be a problem with interference from another network device. The network device provided by the embodiment of the present invention includes: a transceiver module, configured to send control information to the target terminal, and notify the target terminal to measure the first spectrum, and for the network device, the first spectrum is an unlicensed spectrum; and receive the measurement reported by the target terminal Feedback information obtained from the first frequency spectrum; a processing module configured to determine whether the first frequency spectrum is available according to the feedback information received by the transceiver module. Since the terminal measures the unlicensed first spectrum, it can be more accurately judged whether other network devices are using the unlicensed first spectrum, so as to effectively avoid interference from other network devices.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a network device, a terminal, and a method for determining the availability of communication spectrum. Background technique [0002] The Wireless Fidelity (Wifi) system uses unlicensed spectrum, and the Long Term Evolution (LTE) system uses authorized 800M, 2nd Generation (2G), 3.5Generation (3.5G Generation, 3.5G) spectrum. [0003] Considering the limited spectrum resources of the licensed spectrum used by LTE, a current technology is that when wifi does not effectively use its spectrum, the LTE system senses the usage of the wifi system spectrum and uses the spectrum. This technology is called Unlicensed LTE (unlicensed LTE, U-LTE) technology. [0004] When the LTE base station fails to effectively perceive the surrounding Wifi access points (Access Point, AP), it may cause a hidden node problem (hidden terminal problem, HTP), specifically as figure 1...

AI Technical Summary

Problems solved by technology

[0007] Embodiments of the present invention provide a network device, a terminal, and a method for determining the availability of a communication spectrum, so as to solve the problem that one network device does not effectively perceive another network device, but uses the communication spectrum of the other network device to communicate with a terminal , the communication between the network device and the terminal may be interfered by another network device

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