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

Abstract

The present invention relates to the technical field of wireless communications, in particular to a network device, a terminal, and a method for determining communication spectrum availability, so asto solve the following problem: when a network device fails to effectively perceive another network device, but uses a communication spectrum of another network device to communicate with the terminal, the network device may be interfered with by another network device. The network device provided by the embodiment of the present invention comprises a receiving and transmitting module and a processing module, wherein the receiving and transmitting module is used for sending control information to a target terminal to instruct the target terminal to measure a first spectrum, wherein the first spectrum is an unlicensed spectrum for the network device; and for receiving feedback information which is reported by the target terminal and obtained by measuring the first spectrum; and the processing module is configured to determine, according to the feedback information received by the receiving and transmitting module, whether the first spectrum is available. By measuring the unlicensed first spectrum by the terminal, it can be judged more accurately 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, and in particular, to a network device, a terminal, and a method for determining availability of a communication spectrum. Background technique [0002] Wireless Fidelity (Wifi) system uses unlicensed spectrum (unlicensed spectrum), Long Term Evolution (Long Term Evolution, LTE) system uses licensed 800M, 2nd Generation (2G), 3.5 generation (3.5 Generation, 3.5G) spectrum. [0003] Considering that the spectrum resources of the licensed spectrum used by LTE are limited, a current technology is that when WiFi does not use its spectrum effectively, the LTE system senses the spectrum usage of the WiFi system and uses the spectrum. This technology is called unlicensed LTE (unlicensed LTE, U-LTE) technology. [0004] When the LTE base station fails to effectively sense the surrounding Wifi access points (Access Point, AP), it may cause hidden node problem (hidden terminal prob...

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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