Dynamic thermal control for wireless transceivers
First Claim
1. A portable device, comprising:
- a processing device coupled to at least one memory;
a wireless transceiver configured to communicate with other portable devices according to a specified wireless protocol; and
a plurality of heat generating components;
wherein said at least one memory comprises a plurality of instructions that when executed by said processing device;
determine when said wireless transceiver and at least a portion of said plurality of heat generating components, when operating in their respective operating states, cause a thermal threshold value to be exceeded; and
adjust one or more operating parameters for said wireless transceiver based at least in part on said determination; and
wherein said plurality of instructions further comprises one or more instructions that when executed by said processing device, cause said adjustment of said one or more operating parameters until said thermal threshold value is no longer exceeded;
wherein said one or more operating parameters for said wireless transceiver are selected from the group consisting of;
a spatial multiplexing power save (SM PS) parameter, a channel bandwidth parameter, and a modulation and coding scheme (MCS) parameter.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods and apparatus for dynamic thermal management and control within, e.g., small form-factor wireless devices such as laptop computers or cellular “smartphones”. In one embodiment, a thermal management system monitors the temperature (or other relevant criteria) for one or more components, and implements different operating states within the wireless transceiver (e.g., Wi-Fi™ or WiMAX transceiver) so as to both reduce thermal output and minimize disruption to the wireless link and/or user experience. In another embodiment, a wireless client may communicate with other clients, and/or access points, so as to cooperatively provide more options for thermal management. In addition, methods and apparatus employing “high performance” (e.g., high power output or high data rate) radios within aggressively small industrial designs are also disclosed.
43 Citations
21 Claims
-
1. A portable device, comprising:
-
a processing device coupled to at least one memory; a wireless transceiver configured to communicate with other portable devices according to a specified wireless protocol; and a plurality of heat generating components; wherein said at least one memory comprises a plurality of instructions that when executed by said processing device; determine when said wireless transceiver and at least a portion of said plurality of heat generating components, when operating in their respective operating states, cause a thermal threshold value to be exceeded; and adjust one or more operating parameters for said wireless transceiver based at least in part on said determination; and wherein said plurality of instructions further comprises one or more instructions that when executed by said processing device, cause said adjustment of said one or more operating parameters until said thermal threshold value is no longer exceeded; wherein said one or more operating parameters for said wireless transceiver are selected from the group consisting of;
a spatial multiplexing power save (SM PS) parameter, a channel bandwidth parameter, and a modulation and coding scheme (MCS) parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A portable computerized device, comprising:
-
a digital processor; a wireless transceiver having a power amplifier having a first state, said first state comprising a first power output, and one or more second states having respective power outputs that are each less than said first output; and a thermal management system in operative communication with said wireless transceiver, said thermal management system adapted to operate said wireless transceiver; (i) within said first state for at least bursts; and (ii) within one or more of said second states when said thermal management system indicates that a thermal condition exists within said device that has exceeded a prescribed threshold; wherein said operation within said second states further comprises adjustment of one or more operating parameters until said thermal condition no longer exists; wherein said one or more operating parameters for said device are selected from the group consisting of;
a spatial multiplexing power save (SM PS) parameter, a channel bandwidth parameter, and a modulation and coding scheme (MCS) parameter. - View Dependent Claims (12, 13, 14, 15)
-
-
16. A portable computerized device, comprising:
-
a digital processor; a wireless transceiver having a power amplifier and a plurality of operating states, each of said states having a different combination of output power from said amplifier and data rate over a wireless channel; and a thermal management system in operative communication with said wireless transceiver, said thermal management system adapted to operate said wireless transceiver in one of said plurality of states based on;
(i) a control input, and (ii) obeying at least one thermal criterion of said devicewherein if said thermal criterion is violated, said operation of said device in said of said one of said plurality of states comprises adjusting one or more operational parameters until said thermal criterion is obeyed; and wherein said one or more operating parameters for said device are selected from the group consisting of;
a spatial multiplexing power save (SM PS) parameter, a channel bandwidth parameter, and a modulation and coding scheme (MCS) parameter. - View Dependent Claims (17, 18, 19, 20, 21)
-
Specification