Power management mechanism for unlicensed wireless communication systems
First Claim
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1. A method comprising:
- operating a mobile station (MS) on a licensed communication network via a first radio;
determining whether a camping cell associated with the licensed communication network is available;
when a camping cell associated with the licensed communication network is available, at the MS, storing system information of the camping cell;
switching the MS from operating on the licensed communication network to operating on an unlicensed communication network via a second radio;
detaching, at the MS, a radio resource (RR) protocol sub-layer associated with the licensed communication network from a plurality of upper protocol layers;
at the MS, shutting down a layer 1 protocol layer associated with the licensed communication network prior to deactivating the first radio; and
deactivating the first radio after the MS has switched operation to the unlicensed communication network.
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Abstract
A method is disclosed. The method includes a mobile station (MS) operating on a licensed communication network via a first radio, the MS switching operation from the licensed communication network to operating on an unlicensed communication network via a second radio and deactivating the first radio upon switching operation to the unlicensed communication network.
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Citations
15 Claims
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1. A method comprising:
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operating a mobile station (MS) on a licensed communication network via a first radio; determining whether a camping cell associated with the licensed communication network is available; when a camping cell associated with the licensed communication network is available, at the MS, storing system information of the camping cell; switching the MS from operating on the licensed communication network to operating on an unlicensed communication network via a second radio; detaching, at the MS, a radio resource (RR) protocol sub-layer associated with the licensed communication network from a plurality of upper protocol layers; at the MS, shutting down a layer 1 protocol layer associated with the licensed communication network prior to deactivating the first radio; and deactivating the first radio after the MS has switched operation to the unlicensed communication network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A mobile station (MS) comprising:
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a licensed component comprising a licensed radio, a layer 1 protocol layer, and a radio resource (RR) licensed sub-layer to operate on a licensed network; and an unlicensed component to operate on an unlicensed network, wherein the licensed component is deactivated whenever the MS has switched operation to the unlicensed network, said deactivation comprising the MS detaching the RR licensed sub-layer from a plurality of upper protocol layers and deactivating the licensed radio, wherein the layer 1 protocol layer is shut off and the RR licensed sub-layer is detached prior to deactivating the licensed radio.
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10. A system comprising:
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a licensed network; an unlicensed network; and a mobile station (MS) including; a licensed component comprising a licensed radio and a radio resource (RR) licensed sub-layer to operate on the licensed network; and an unlicensed component to operate on the unlicensed network, wherein the licensed component is deactivated whenever the MS has switched operation to the unlicensed network, said deactivation comprising the MS detaching the RR licensed sub-layer from a plurality of upper protocol layers and deactivating the licensed radio, wherein the RR licensed sub-layer is detached prior to deactivating the licensed radio.
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11. A method comprising:
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deactivating, at a mobile station (MS), a licensed radio after the MS has switched operation from a licensed communication network to an unlicensed communication network; detecting a condition by the MS for reactivating the licensed radio; determining whether the MS has stored a copy of information of a camping cell prior to deactivating the licensed radio; when the MS has stored the information of the camping cell, the MS performs an instant wakeup comprising; tuning to an absolute radio frequency channel number (ARFCN) of a target cell; searching for a frequency correction channel (FCCH) and a synchronization channel (SCH) of the target cell; determining whether the MS has synchronized to the FCCH and SCH of the target cell; and restoring the information the MS stored prior to deactivating the licensed radio; determining whether the target cell is found; when the target cell is found, the MS moving a radio resource protocol sub-layer into a detached cell reselection mode; and when the target cell is not found, the MS initiating normal licensed cell selection procedures. - View Dependent Claims (12, 13, 14, 15)
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Specification