Spectrum sharing method and device

Abstract

The present invention provides a spectrum sharing method and apparatus. The method comprises: a second base station detecting first spectrum occupancy information sent by a first base station; and then, the second base station scheduling data by means of a first spectrum when the second base station does not receive the first spectrum occupancy information sent by the first base station, or the second base station receives the first spectrum occupancy information sent by the first base station and determines that a first occupancy priority sent by the first base station is lower than a second occupancy priority of the second base station. It is achieved that different base stations schedule data on a same spectrum, and interference generated when the different base stations use the same spectrum is decreased, thereby improving the spectrum utilization efficiency and a system throughput.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a method and device for sharing frequency spectrum. Background technique [0002] In modern communications, spectrum management is used to effectively utilize wireless spectrum. For example, the spectrum is divided into licensed spectrum and unlicensed spectrum. The spectrum used by Universal Mobile Telecommunications System (UMTS for short), or Long Term Evolution (LTE for short), and the unlicensed spectrum is the spectrum allocated to unlicensed users (such as home users). [0003] In the prior art, in a Wireless Fidelity (Wi-Fi for short) network, Request-To-Send (RTS for short) frames and Clear-To-Send (CTS for short) frames may be used. ) frame to coordinate the use of unlicensed spectrum, the RTS frame or CTS frame includes a duration value, where the duration value is used to indicate the time when the Wi-Fi station uses the unlicensed spectrum, and ...

AI Technical Summary

Problems solved by technology

[0004] However, when mobile operators use unlicensed spectrum to provide communication services for users, they coordinate the use of unlicensed spectrum through channel reservation frames similar to CTS frames, which will lead to collisions when multiple eNBs send channel reservation frames at the same time, resulting in multiple eNB performs data scheduling and transmission on the same spectrum resource at the same time, which causes interference between base stations, which in turn leads to a decrease in spectrum utilization

Images