Techniques for controlling spectrum usage of a hierarchical communication system
地域：
CA
CA Santa Clara
摘要
An access point (AP) device for controlling spectrum usage of a hierarchical communication system, in which a spectrum reserved for an Incumbent is usable by at least one user equipment (UE) for transmission when the spectrum is not required by the Incumbent, is disclosed. The AP device includes a processor configured to receive a message from the Incumbent requesting vacating of a spectrum; generate a group of users affected by the message from the Incumbent requesting vacating of the spectrum; and perform a spectrum management operation on the group of users.
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Then, in eighth block 721 existence of other available channels is checked. If answer is yes, in ninth block 722 SAS SW enforces channel hopping of CBSD. Spectrum usage commands are applied 723, e.g. channelChange as described above. If answer of eighth block 721 is no, in tenth block 727, SAS SW enforces sleep mode or blocking of CBSDs. Spectrum usage commands are applied 728, e.g. sleepEnforce, blockCBSD as described above. SAS SW enforces sleep mode or blocking of CBSDs as long as incumbent does not stop transmission 726. If Incumbent stops transmission 726, in an eleventh block 724 SAS SW terminates sleep mode or blocking of CBSDs. Spectrum usage commands are applied 725, e.g. sleepStop and blockCBSD as described above.
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