Method, system and device for triggering and performing spectrum sensing
First Claim
1. A method for performing spectrum sensing, comprising:
- judging, by a cognitive node, whether or not a channel quality has declined to a requirement for performing in-band spectrum sensing; and
performing, by the cognitive node, in-band spectrum sensing upon determining that the channel quality has declined to the requirement for performing in-band spectrum sensing.
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Accused Products
Abstract
The embodiments of the present application relate to the technical field of wireless communications, and in particular to a method, system and device for triggering and performing spectrum sensing, used for solving the problem in the prior art that if the sensing period is set too long, a decline of service quality between an authorization system and a cognitive system or even a network paralysis will be caused due to interference; and if the sensing period is set too short, an increase in power consumption of devices and a waste of spectrum resources will be caused. The method for performing spectrum sensing in the embodiments of the present application includes: a sensing node judging whether or not the channel quality has declined to the requirement for performing in-band spectrum sensing; and after determining that the channel quality has declined to the requirement for performing in-band spectrum sensing, the sensing node performing in-band spectrum sensing. By way of applying the embodiments of the present application, the problems of decline of service quality between an authorization system and a cognitive system or even a network paralysis due to interference caused by setting the sensing period too long, or an increase in power consumption of devices and a waste of spectrum resources caused by setting period too short, can be avoided.
10 Citations
20 Claims
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1. A method for performing spectrum sensing, comprising:
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judging, by a cognitive node, whether or not a channel quality has declined to a requirement for performing in-band spectrum sensing; and performing, by the cognitive node, in-band spectrum sensing upon determining that the channel quality has declined to the requirement for performing in-band spectrum sensing. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for triggering spectrum sensing, comprising:
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judging, by a central node, whether or not a channel quality has declined to a requirement for performing in-band spectrum sensing; and triggering, by the central node, cognitive nodes to perform in-band spectrum sensing upon determining that the channel quality has declined to the requirement for performing in-band spectrum sensing. - View Dependent Claims (9, 10, 11, 12)
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13. A device for performing spectrum sensing, comprising:
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a first determining module configured to judge whether or not a channel quality has declined to a requirement for performing in-band spectrum sensing; and a sensing module configured to perform in-band spectrum sensing when it is determined that the channel quality has declined to the requirement for performing in-band spectrum sensing. - View Dependent Claims (14, 15, 16)
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17. A device for triggering spectrum sensing, comprising:
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a determining module configured to judge whether or not a channel quality has declined to a requirement for performing in-band spectrum sensing; and a triggering module configured to trigger cognitive nodes to perform in-band spectrum sensing when it is determined that the channel quality has declined to the requirement for performing in-band spectrum sensing. - View Dependent Claims (18, 19, 20)
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Specification