Method and apparatus of dynamic spectrum allocation in coexisting heterogeneous wireless networks
First Claim
1. A method of dynamic spectrum allocation in coexisting heterogeneous wireless networks, comprising:
- detecting, by a Mobile Station (MS), a serving Access Point (AP) for the MS and a coexisting AP (cAP) of the serving AP, acquiring a cAP Identifier (ID) of the cAP, and sending to the serving AP a service request message containing the cAP ID and a bandwidth demand;
upon receiving the service request message, sending, by the serving AP, to a Dynamic Spectrum Allocation Module (DSAM), a spectrum request message containing an AP ID of the serving AP, the cAP ID and a spectrum demand of the serving AP acquired according to one or more service request messages sent by the MS;
allocating, by the DSAM, spectrum dynamically using a dynamic spectrum allocation algorithm according to the AP ID, the cAP ID and the spectrum demand obtained, and sending a spectrum allocation result to the serving AP; and
allocating, by the serving AP, an appropriate bandwidth to the MS according to the spectrum allocation result from the DSAM.
1 Assignment
0 Petitions
Accused Products
Abstract
Embodiments of this disclosure include a method and apparatus of dynamic spectrum allocation in coexisting heterogeneous wireless networks. A Mobile Station (MS) detects its own serving Access Point (AP) and a coexisting AP (cAP) of the serving AP, sends to the serving AP a service request message carrying a bandwidth demand and a cAP ID. The serving AP sends to a Dynamic Spectrum Allocation Module (DSAM) a spectrum request message carrying its own AP ID, the cAP ID and the spectrum demand. The DSAM allocates the spectrum dynamically using a dynamic spectrum allocation algorithm according to the spectrum demand, AP ID and cAP ID, and sends a spectrum allocation result to the serving AP, which allocates an appropriate bandwidth to the MS according to the spectrum allocation result. Thus, sharing spectrum dynamically between multiple coexisting wireless networks can be achieved, and spectrum utilization can be improved.
46 Citations
17 Claims
-
1. A method of dynamic spectrum allocation in coexisting heterogeneous wireless networks, comprising:
-
detecting, by a Mobile Station (MS), a serving Access Point (AP) for the MS and a coexisting AP (cAP) of the serving AP, acquiring a cAP Identifier (ID) of the cAP, and sending to the serving AP a service request message containing the cAP ID and a bandwidth demand; upon receiving the service request message, sending, by the serving AP, to a Dynamic Spectrum Allocation Module (DSAM), a spectrum request message containing an AP ID of the serving AP, the cAP ID and a spectrum demand of the serving AP acquired according to one or more service request messages sent by the MS; allocating, by the DSAM, spectrum dynamically using a dynamic spectrum allocation algorithm according to the AP ID, the cAP ID and the spectrum demand obtained, and sending a spectrum allocation result to the serving AP; and allocating, by the serving AP, an appropriate bandwidth to the MS according to the spectrum allocation result from the DSAM. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. An apparatus of dynamic spectrum allocation, comprising:
-
a spectrum request processing module, to receive spectrum request messages from Access Points (AP) of Radio Access Technologies (RATs), and obtain, from the spectrum request messages, parameters related to a spectrum request; a Spectrum Allocation Table (SAT) storing module to store a spectrum allocation record corresponding to a serving AP and a coexisting AP (cAP) of a RAT; a dynamic spectrum allocation module, connected to the spectrum request processing module and the SAT storing module, to allocate spectrum dynamically using a dynamic spectrum allocation algorithm through searching for the spectrum allocation record stored in the SAT storing module according to the parameters related to the spectrum request from the spectrum request processing module; a spectrum allocation result output module, connected to the dynamic spectrum allocation module, to output a dynamic spectrum allocation result from the dynamic spectrum allocation module to the AP sending the spectrum request message. - View Dependent Claims (16, 17)
-
Specification