Method and equipment for spectrum sensing
A spectrum sensing and to-be-sensed technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as increased transmission delay, reduce transmission delay, improve system throughput, and reduce waste.
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Embodiment 1
[0046] Aiming at the problems existing in the prior art, Embodiment 1 of the present invention provides a spectrum sensing method, which is applicable to a cognitive radio system adopting OFDM multiple access mode, including but not limited to TD-LTE (Time Division-Long Time Evolution, time-division long-term evolution) system, LTE system, WiMAX (Worldwide Interoperability for Microwave Access, global microwave interconnection) system, etc., such as Figure 4 As shown, the spectrum sensing method includes the following steps:
[0047] In step 401, a network side device (such as a base station device) determines frequency resources and time resources that the cognitive radio system needs to be silent. Wherein, the way of determining the time resource can be configured according to requirements.
[0048] In a preferred implementation manner of the embodiment of the present invention, the network-side device determines the frequency resources that the cognitive radio system need...
Embodiment 2
[0101] Embodiment 2 of the present invention provides a spectrum sensing method, which is applicable to cognitive radio systems using OFDM multiple access, including but not limited to TD-LTE systems, LTE systems, WiMAX systems, etc., such as Figure 16 As shown, the spectrum sensing method includes the following steps:
[0102] Step 1601, the terminal device receives the silence pattern notified by the network side device. Wherein, the silence pattern is a silence pattern generated and notified to the terminal device by the network side device using the frequency resource and time resource after determining that the cognitive radio system needs to silence the frequency resource and time resource.
[0103]In a preferred implementation of the embodiment of the present invention, when selecting to perform in-band spectrum sensing, the network side device determines that the cognitive radio system needs to be silent according to the prior information of the authorized system corr...
Embodiment 3
[0116] Based on the same inventive concept as the above method, an embodiment of the present invention also provides a network side device, such as Figure 17 As shown, the network side equipment includes:
[0117] A determining module 11, configured to determine frequency resources and time resources that the cognitive radio system needs to be silent;
[0118] A generating module 12, configured to generate a silent pattern of a cell by using the frequency resource and time resource;
[0119] The first processing module 13 is configured to use the signal received at the resource position corresponding to the silence pattern to perform spectrum sensing; and / or send the silence pattern to the terminal device in the cell, and the terminal device uses Spectrum sensing is performed on signals received at resource positions corresponding to the silence pattern.
[0120] The determination module 11 is specifically configured to determine the frequency resource that the cognitive ra...
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