Patent application number | Description | Published |
20080268917 | POWER MANAGEMENT IN A PORTABLE COMMUNICATION DEVICE BASED ON RADIO CONFIGURATION VERSION - A portable communication device transmits, to a communication network, a radio configuration (RC) request indicator requesting assignment of a power saving radio configuration for reverse link transmissions. The power saving radio configuration is one a plurality of radio configurations including the power saving radio configuration and at least one other radio configuration defined by a communication standard different than the communication standard defining the power saving radio configuration. Average power consumption at the portable device when the portable communication device participates in the call using the power saving radio configuration is less than if the other radio configuration is used for the call. | 10-30-2008 |
20080279168 | SYSTEM AND METHOD FOR BROADCASTING OVERHEAD PARAMETERS IN POOR COVERAGE REGIONS - To improve WWAN coverage, an access node broadcasts overhead messages on a first channel covering a first channel environment and a second channel covering a second channel environment within a coverage region. The overhead messages carry network overhead parameters for allowing wireless mobile devices to acquire and maintain traffic channels within the cellular system. The overhead message channels are configured so that a user perceives uninterrupted wireless services while moving through different channel environments in the coverage region. In one embodiment, the overhead message channels are separate physical channels configured with different broadcast parameters to provide coverage in different environments. In another embodiment, the overhead parameter information is segregated into base and extended components that are encoded and layer modulated onto separate logical channels. Using layered modulation, wireless mobile devices can receive base components in poor coverage regions. The base components include overhead parameters for acquiring a WWAN channel. | 11-13-2008 |
20080280630 | SYSTEM AND METHOD FOR BROADCASTING PAGE MESSAGES IN POOR COVERAGE REGIONS - A system and method for paging wireless mobile devices selectively varies the effective modulation order of a paging channel to achieve improved coverage in a wireless wide area network (WWAN) cell. In one embodiment, the paging channel modulation order is selected based on a measured signal strength and/or common channel error rate. The selected modulation order is directly related to the quality of the channel environment. In another embodiment, a page message is segregated into base and extended components that are layer modulated. With layered modulation, wireless mobile devices in good coverage regions can successfully demodulate both the base and extended components to recover the entire page message. Wireless mobile devices in poor coverage regions can successfully demodulate the base component of the page message, and then request that the extended component of the page message be re-broadcast as a base component to thereby recover the entire page message. | 11-13-2008 |
20090082017 | DETECTING THE PRESENCE OF MULTIPLE COMMUNICATION ACCESS TECHNOLOGIES - A multimode wireless communication device and method for having the device detect a communication access technology is described. The multimode wireless device comprises a multimode transceiver module, a CAT detection module, and at least one CAT threshold level corresponding to each CAT. The multimode transceiver module is operatively coupled to a first antenna. The multimode transceiver module comprises at least two communication access technology (CAT) receiver modules operatively coupled to at least one antenna, wherein each CAT receiver module complies with a receiver requirement. The CAT detection module is operatively coupled to one of the CAT transceiver antenna and the CAT detection module is configured to detect a plurality of CAT RF energy levels associated with each CAT receiver module without activating the corresponding CAT transceiver module. | 03-26-2009 |
20090215400 | PILOT SIGNAL TRANSMISSION MANAGEMENT - A base station transmits a pilot signal when the presence of a wireless communication device is detected. A wireless device detector receives a detection signal transmitted from a wireless communication device to determine the presence of the wireless communication device. | 08-27-2009 |
20100020779 | DATA ROUTING THROUGH LOCAL NETWORK CONNECTED TO A BASE STATION - A base station routes data between a wireless communication device and a local device through a local network. When a route-local indicator is received from the wireless communication device, the base station routes data through the local network to the local device without routing the data through a cellular network. Accordingly, the physical path of the data includes the base station and the local network and does not include cellular equipment other than the base station. | 01-28-2010 |
20100120398 | USER ZONE INFORMATION TRANSMISSION MANAGEMENT - A detecting base station transmits user zone information to wireless communication device when the presence of a wireless communication device is detected. A detecting base station receives a detection signal, such as an uplink signal, transmitted from the wireless communication device to determine the presence of the wireless communication device. The detecting base station notifies the core network the detection by transmitting a device proximity message and, after receiving authorization from the network, transmits the user zone information within the broadcast channel used by the originating base station communicating to the wireless communication device. | 05-13-2010 |
20100172315 | SYSTEM SCANNING METHOD AND ARRANGEMENT FOR MOBILE WIRELESS COMMUNICATION DEVICES - An exemplary method for searching one of a plurality of systems on a multi-mode device capable of communicating on a first air interface technology and a second air interface technology is disclosed. The exemplary method includes storing a default system search period for one of the air interface technologies, such as WLAN system, receiving user input representative of a user-defined system search period for the WLAN system, storing the user-defined system search period, detecting a system search event for WLAN services, searching WLAN services in response to the system search event, and terminating the WLAN system search after expiration of the user-defined search period. | 07-08-2010 |
20100240314 | PILOT SIGNAL TRANSMISSION MANAGEMENT - A base station is configured to reduce interference with other base stations and/or devices in a multi-cell wireless network. The base station includes a wireless interface, detector and controller. To reduce interference, the wireless interface may provide services to a first wireless communication device (WCD) using a pilot signal emitted from the base station at a reduced power level. In the reduced pilot signal mode, when the detector detects a second WCD within the base station's service area, the controller increases the pilot signal's power level above the reduced power level in order to establish communications with the second WCD. Upon successfully connecting to the first and second WCDs, the base station may again reduce the pilot signal's power level to reduce interference with other base stations or wireless devices. | 09-23-2010 |