Method, device and data frame for sensing spectrum

A technology for sensing spectrum and data frame, applied in the field of sensing spectrum, it can solve the problems of increasing system complexity, and achieve the effect of increasing system complexity and ensuring compatibility.
CN103124199AActive Publication Date: 2013-05-29HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2013-05-29

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Abstract

The invention discloses a method, a device and a data frame for sensing spectrum. The method for sensing spectrum includes ensuring configuration information of a spectrum sensing protection interval used to avoid a protection time GP from being interfered. The spectrum sensing protection interval is used to avoid the spectrum sensing being interfered from the signal transmission and the configuration information aims at indicating the location of the spectrum sensing protection interval in the protection time. A quiet period is set in the protection time based on the configuration information of the spectrum sensing protection interval and, in the quiet period, the spectrum sensing is performed. The method guarantees the compatibility with the present agreement through reusing the protection time in data frame and setting quiet time in the protection time. Further, through setting the spectrum sensing protection interval which includes a front protection interval and / or a back protection interval, the method effectively avoids the interference of signal transmission to spectrum sensing and the spectrum sensing can be performed without affecting the signal transmission.
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Description

technical field

[0001] The present invention relates to wireless communication technology, in particular to a method, device and data frame for sensing frequency spectrum. Background technique

[0002] Cognitive Radio (CR) is a promising technology to solve the current shortage of spectrum resources. Through the cognitive radio technology, these frequency bands can be dynamically accessed without interfering with the primary user (PU, Primary User), so as to improve spectrum utilization. Currently, the Federal Communications Commission of the United States has officially issued regulations to allow devices to access TV white space (TVWS, TV white space) without causing interference. In addition, standards such as IEEE 802.22 being developed by the Institute of Electrical and Electronics Engineers of the United States also use TVWS as the target frequency band for spectrum sharing.

[0003] Spectrum sensing is one of the core technologies of cognitive radio. Its purpose is ...

Claims

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