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US 8,787,228 B2Granted
Method apparatus and system for reducing power consumption of a wireless device
AssigneeIntel Corporation
InventorsShlomo Avital, Miri Ratner, Ofer Markovits, Giora Rayzman, Eran Sudak
Life of this patent
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Abstract
A method, apparatus and a wireless communication system to reduce power consumption of a wireless Multicomm device by using a location-aware scanning for detecting WLAN networks. The location awareness is obtained from a base station identifier of a wireless wide area network (WWAN) and is based on a preconfigured database that associates WWAN BS IDs with potential WLAN networks.
Claims14
A method of location-aware scanning by a wireless Multicomm device, the method comprising:
- scanning a wireless wide area network (WWAN) to detect a WWAN base station (BS) having a detected BS identifier;
- searching for the detected BS identifier in a preconfigured database that associates one or more wireless wide area network (WWAN) base station (BS) identifiers (IDs) of one or more WWAN base stations with one or more Wireless Local Area Network (WLAN) Service Set Identifiers (SSIDs) of one or more WLANs in a vicinity of the WWAN base stations;
- if a WLAN Service Set Identifier (SSID) of at least one WLAN in a vicinity of the WWAN BS is found, based on said searching, scanning for the at least one WLAN;
- and
- if no WLAN SSID of at least one WLAN in the vicinity of the WWAN BS is found, based on said searching, selecting not to perform WLAN scanning.
2 more elements
A wireless communication device comprising:
- a multiple-input-multiple-output (MIMO) communication system;
- a first baseband and medium access controller (MAC) to associate with a wide area wireless network (WWAN) base station;
- a second baseband and MAC to associate with a wireless local area network (WLAN) access point (AP);
- a database to store one or more WWAN base station (BS) identifiers (IDs) of one or more WWAN base stations in association with one or more WLAN Service Set IDs (SSIDs) of one or more WLANs in a vicinity of the WWAN base stations;
- and
- a controller to perform a location-aware scan by disabling periodic WLAN scanning, scanning the WWAN to receive a detected base station identifier of a detected BS, searching for the detected BS identifier in the database, and scanning for a particular WLAN which is associated in the database with the detected BS identifier, wherein the controller is to avoid WLAN scanning if there is no WLAN identifier stored in the database in association with the detected base station identifier.
3 more elements
A wireless communication system comprising:
- a host system comprising:
- a location-based service data base (LBS DB) to store a plurality of base station identifiers in association with one or more wireless local area network (WLAN) identifiers, if any;
- and
- a Multicomm unit comprising:
- a first baseband and medium access controller (MAC) to associate with a wide area wireless network (WWAN) base station;
- a second baseband and MAC to associate with a WLAN access point;
- and
- a controller to disable periodic WLAN scanning, to scan the WWAN, to receive a detected base station identifier, to search for the detected BS identifier in the database, and to scan for a particular WLAN which is associated in the database with the detected BS identifier, wherein the controller is to avoid WLAN scanning if there is no WLAN identifier stored in the database in association with the detected base station identifier.
5 more elements
Dependencies are inferred from the claim text.